4.3 Camshaft - S-10 Forum
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post #1 of 71 Old 04-09-2005, 01:15 AM Thread Starter
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4.3 Camshaft

Okay heres the deal I want a camshaft for my 2003 Chevy S10 with the Vortech 4.3 litre engine. No Biggie Huh? The only problem is I want it to loap so bad the truck rocks I pretty much want a race car sound. Also I have the 4L60E Automatic Transmission. Can anyone give me a suggestion on what needs to be done. Also if i change the cam will it effect the emissions part of the truck( By this I mean the SERVICE ENGINE SOON LIGHT) I dont want it BACK on.

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post #2 of 71 Old 04-09-2005, 02:06 AM
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Re: 4.3 Camshaft

well check out comp cams .525/.525 lift cam it will give you the sound you are after, that is what is in my budies truck and it chomps hard(u can almost count cyl's lol)

But dont count on geting a cam like that and Keeping your F.I. They are made for carb Setups
and with a carb your 4L60E wont shift out of second gear cause it works off the T.P.S.

You will need Stiffer Valve springs cause of the much higher lift of the cam

With a auto trans you will also need a stall converter so your truck will idle in gear

Hope this helps
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post #3 of 71 Old 04-09-2005, 02:12 AM
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Re: 4.3 Camshaft

comps 270ahr loaps slightly, there are clips on the site from members somewhere. but i doubt its racecarish.

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post #4 of 71 Old 04-09-2005, 02:54 AM
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Re: 4.3 Camshaft

Be careful how much cam you put into that motor. I think the stock heads will max out at about .480 lift (but dont quote me on that, I'm sure Mintsick or Rat will chime in soon, and those guys know their stuff.) without needing machining, and thats with zero clearance. Zero clearance is bad... Also, too much duration, and your truck will sound mean as hell, but you will actually lose power. If your engine redlines before it can even get into that cam's powerband, what exactly is the point?

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post #5 of 71 Old 04-09-2005, 08:04 AM
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Re: 4.3 Camshaft

Yeah, stock heads are .480 lift. Most likely, you'll have to get the heads machined. Comp Cams does make a 270 with a .470 lift, if you don't want to machine the heads. Clearance of .010 is better than zero.
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post #6 of 71 Old 04-09-2005, 08:13 AM
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Re: 4.3 Camshaft

Hmmmm good to know I want a lil more power outta my 4.3 dime....Thanks guys


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post #7 of 71 Old 04-09-2005, 10:53 AM Thread Starter
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Re: 4.3 Camshaft

hey guys im not really after horspower i just want the old muscle car truck sound. I love my s10 and i want it to sound mean.

2003 Chevrolet S10 ZQ8 Dark Cherry Red Metallic
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post #8 of 71 Old 04-09-2005, 01:29 PM
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Re: 4.3 Camshaft

For the lope sound you are looking for the 270AHR would do it a little. Baisicaly what will give you lope is a small lobe seperation angle, and long duration. The longer you keep the exhaust and intake open at the same time the more lope you will have. If you get an adjustable timing set you could install the cam a little retarded, and it should make it lope a little more.

I strongly recomend that you don't do this. You will probably make your truck slower by doing this. To properly do it you would have to get a stall converter, and higher gears. All of this stuff is going to kill your fuel economy by the way. It will also drive like crap on the street, because you will have zero low end torque. Crane also has some cams that are fairly wild. This isn't going to be cheep either. You would need springs, retainers, locks, cam, heads machined, gaskets, lifters maybe, rockers maybe, and computer tuning so that you don't throw an ses light. With the lope that you want the computer is going to think that it is misfireing, and it will throw an ses. The 2001 and newer trucks seem to be more prone to this. If they use the sniffer i doubt you will pass emissions with the type of cam you want.

If you call comp, they might be able to make a custom grind for you that would do this, and sound the way you want it.

Quote:
Originally Posted by YELLOW2002S10
Hmmmm good to know I want a lil more power outta my 4.3 dime....Thanks guys
If you have a manual you should go with a 266HR, or the 270AHR. Manuals can usualy take a little more duration than an automatic. If you have an automatic and want to keep the stock torque converter, then the 260AHR has good torque, drivabiltiy, and fuel economy. It makes power up to about 5000rpm. If you don't want to machine the heads a lower cost alternative would be crane. They have a 204/214 duration with .43" of lift cam that would fit without machining. It should also be good for nitrous, or a supercharger.

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Camshaft Tutorial-----My Truck and The Roots Blower Project ------ My Tuning Tutorial
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post #9 of 71 Old 12-28-2008, 04:13 PM
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Re: 4.3 Camshaft

http://www.youtube.com/watch?v=R9dA0jTDGR4 id love for my 4.3 to sound like this

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post #10 of 71 Old 12-29-2008, 01:40 PM
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Re: 4.3 Camshaft

That truck sounds awesome. Makes me wanna just put the 4.3 in the s10 instead of v8.

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post #11 of 71 Old 12-29-2008, 02:12 PM
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Re: 4.3 Camshaft

for the parts
http://www.s10forum.com/forum/f107/w...9/#post5885828

sound of the 270
http://www.s10forum.com/forum/f89/po...5/#post3341024

Last edited by bobfig; 12-29-2008 at 02:15 PM.
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post #12 of 71 Old 12-29-2008, 02:17 PM
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Re: 4.3 Camshaft

My 270 lopes pretty good. Its the only one I would recommend.

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post #13 of 71 Old 04-24-2009, 12:07 PM
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Re: 4.3 Camshaft

About how long does it take to change a cam
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post #14 of 71 Old 04-24-2009, 01:51 PM
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Re: 4.3 Camshaft

Quote:
Originally Posted by rat View Post
....then the 260AHR has good torque, drivabiltiy, and fuel economy. It makes power up to about 5000rpm....
FYI, I ran a 260AHR with no other mods and it pulled all the way to 5500 before I would get out of it

Quote:
Originally Posted by Bentenn14 View Post
If I had to guess, It's gonna be one of those things that seems like a longshot that's gonna be the problem. I've almost exhausted the short-shots.
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post #15 of 71 Old 03-04-2010, 03:31 PM
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Re: 4.3 Camshaft

Are there any cams like the old school RV style cams that keep power lower in the powerband? im looking for off the line power and towing power, not top end. A nice lumpy idle would be an amazing plus

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post #16 of 71 Old 03-04-2010, 03:54 PM
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Re: 4.3 Camshaft

Comp 270AHR here and it has a slight lope. My exhaust clip is in the audio clip sticky. Check it out. The Comp 280HR will be too aggressive for you and you will love the sound but it's pointless unless you have all the mods to back it up.

2003 ZQ8 S-10. 4.3 Vortec Wynjammer supercharged, 36lb injectors, Richmond 4:10's w/ Auburn posi, PTC 3000 stall converter, Hughes shift kit, Jet billet servo, ported throttle body, Flex-A-Lite dual electric fans, ported Vortec heads w/valve job 2.02/1.60 , Pertronix ignition box, custom dyno tune, Competition 270 ahr, true dual exhaust ( JBA shorty ceramic headers, X pipe, no cat, 2 Spintech Pro shootouts.) 263 rwhp 298 ft lbs of torque
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post #17 of 71 Old 03-04-2010, 09:16 PM
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Re: 4.3 Camshaft

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Originally Posted by 03zq8s10 View Post
Comp 270AHR here and it has a slight lope. My exhaust clip is in the audio clip sticky. Check it out. The Comp 280HR will be too aggressive for you and you will love the sound but it's pointless unless you have all the mods to back it up.
is this for my post or the guy that started this thread?

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post #18 of 71 Old 03-04-2010, 10:31 PM
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Re: 4.3 Camshaft

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Originally Posted by SnoMan View Post
is this for my post or the guy that started this thread?
OP man. I would have quoted you. It's cool though.

2003 ZQ8 S-10. 4.3 Vortec Wynjammer supercharged, 36lb injectors, Richmond 4:10's w/ Auburn posi, PTC 3000 stall converter, Hughes shift kit, Jet billet servo, ported throttle body, Flex-A-Lite dual electric fans, ported Vortec heads w/valve job 2.02/1.60 , Pertronix ignition box, custom dyno tune, Competition 270 ahr, true dual exhaust ( JBA shorty ceramic headers, X pipe, no cat, 2 Spintech Pro shootouts.) 263 rwhp 298 ft lbs of torque
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post #19 of 71 Old 03-04-2010, 11:04 PM
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Re: 4.3 Camshaft

ok im in the same boat, so a 525/525 wont work for my 97 4.3?

im not planning on just throwing a cam in

heres my list
Head Set- Gaskets
Roller cam- which one??? and Roller lifters
Valve springs and retainers
3/8 ARP screw in studs
Roller Rockers- Help me with the brand?
Timing Chain and gears
Cam Button and retainers
High-Volume Oil pump
Machined heads
shorty headers with true duals
traction bars for wheel hop.


any suggestions/comments/critisms?

-Dave K
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post #20 of 71 Old 03-04-2010, 11:13 PM
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Re: 4.3 Camshaft

Quote:
Originally Posted by 97s104x4 View Post
ok im in the same boat, so a 525/525 wont work for my 97 4.3?

im not planning on just throwing a cam in

heres my list
Head Set- Gaskets
Roller cam- which one??? and Roller lifters
Valve springs and retainers
3/8 ARP screw in studs
Roller Rockers- Help me with the brand?
Timing Chain and gears
Cam Button and retainers
High-Volume Oil pump
Machined heads
shorty headers with true duals
traction bars for wheel hop.


any suggestions/comments/critisms?
you don't need a high volume oil pump, ive got a built motor and im using a regular oil pump, high volume not needed, and 3/8 arp rocker arm studs, you're gonna have to have machine work for those...and im pretty sure you can reuse your stock lifters...

Brian

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post #21 of 71 Old 03-04-2010, 11:46 PM
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Re: 4.3 Camshaft

i have the old z motor with what is basically the 266hr comp cam and on a warm day(above 70*f) at normal operating temp it tends to get a little lumpy at idle at the traffic lights

i've had it in this configuration for over 9 years it can get upwards of 21-22mpg's, and pulls very well from idle to the rev limiter

my humble $.02 worth

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post #22 of 71 Old 03-05-2010, 09:12 AM
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Re: 4.3 Camshaft

Quote:
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you don't need a high volume oil pump, ive got a built motor and im using a regular oil pump, high volume not needed, and 3/8 arp rocker arm studs, you're gonna have to have machine work for those...and im pretty sure you can reuse your stock lifters...
but i do have the right idea correct?

and i always throw an oil pump in high mileage motors i tear apart, i realize about the studs, read an article on it this morning, and that would be nice about the lifters!

so what is the biggest cam we can go, the gives the most horsepower? im not worried about the sound, i want speed.

1997 4.3 Vin X

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post #23 of 71 Old 03-05-2010, 09:38 AM
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Re: 4.3 Camshaft

what about the beehive springs and comp 787 (i think) retainers? you can clear .525" without machine work to your heads, not to mention its a better designed valve spring.

1997 S10 266ci V6-turbo. 4l80e. 8.8. 23lbs.
10.93@122
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build thread-http://www.s10forum.com/forum/f11/no...r-more-481754/
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post #24 of 71 Old 03-05-2010, 01:13 PM
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Re: 4.3 Camshaft

http://www.youtube.com/watch?v=OsE9OSm2UdE
http://www.youtube.com/watch?v=JjmfLwL3oQo

1st vid was when I was having distributer placement issues but you can hear the cam. 2nd vid was quickest pass ever in truck which is posted on fastest n/a 4.3 thread.
Now both of those was with only about .390 actual lift on the valve. The cam was ground .425/.425 but due to geometry and less than actual 1.5 ratio rockers the lift was off. Found a 7.5 inch rod was correct length to give most lift. Let me first say that lobe sep, degrees from centerline and duration at .050 give race car lope. Now believe it or not it is easier to make the 2001 and later computers work with a radical cam than the 98-00 and the 96-97s, but all can be done. No I do not drive my truck on the street, but I could if I wanted to or atleast untill it got too hot. You can have a really killer cam and only have .450 lift. Be sure to get the long slot rockers(another story). If you have ever seen a really hot LS1 or LT1 Cam or Bird with the stock ECM under the hood that is proof that stock ECMs are doing what they could do on 4.3s. I would love to do the R&D on this subject myself but I am too busy at this moment. I would find a local tuner who would put in the time of driving and recording data in order to set all of the tables correctly. The most important thing to get out of this is you don't need .500+lift to have a killer cam.

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post #25 of 71 Old 03-05-2010, 11:24 PM
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Re: 4.3 Camshaft

ok so i decided on 270 .510, and i love comp's cam simulator, with my planned mods i should have about 275hp motor wise, my goal is eventually 300...

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post #26 of 71 Old 03-05-2010, 11:30 PM
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Re: 4.3 Camshaft

lol what mods are you doing to where the simulator says you should have 275?

Brian

01 xtreme 4.3L 5spd 2/3 drop w/ SS front bumper|.030 over|270 comp cam|500 lift|dual valve springs|10:1 C/R|p&p heads w/ 3 angle valve job|w4me tune|shorty headers|2.25 y pipe|no cat|Spintech muffler|windage tray|LW flywheel|DF clutch|8mm wires|no ac|efan|walbro 255|MPFI upgrade|Comp Cam timing chain|ARP bolts/studs|totaled***
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post #27 of 71 Old 03-05-2010, 11:56 PM
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Re: 4.3 Camshaft

port and polished heads, valve job, cam, roller rockers, lifters, dual exhaust shorty headers, wiesco pistons, fluid dampener. i have a few more planned but cant remember it all, i plan on spending quite a bit, even though me and pops are doing the work, i will make a project thread when i get the parts.


it already has 175 stock right? i cant tell the difference as the 4.3 ranges from 155-200hp

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post #28 of 71 Old 03-06-2010, 12:01 AM
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Re: 4.3 Camshaft

either 180 or 190 stock...the fluid dampener is gonna be pricey, along with the wiseco pistons....i almost thought about buying a set of those but decided not to...how much are you planning on spending? mines around 5400 right now, not including the cost of getting my tranny rebuilt...lol

Brian

01 xtreme 4.3L 5spd 2/3 drop w/ SS front bumper|.030 over|270 comp cam|500 lift|dual valve springs|10:1 C/R|p&p heads w/ 3 angle valve job|w4me tune|shorty headers|2.25 y pipe|no cat|Spintech muffler|windage tray|LW flywheel|DF clutch|8mm wires|no ac|efan|walbro 255|MPFI upgrade|Comp Cam timing chain|ARP bolts/studs|totaled***
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post #29 of 71 Old 03-06-2010, 12:11 AM
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Re: 4.3 Camshaft

Actually your truck isn't making but about 140 to the wheels stock. I was pushing 265 to the wheels with my mods in sig before the new fuel setup. I should be seeing closer to 300 to the wheels right now.

2003 ZQ8 S-10. 4.3 Vortec Wynjammer supercharged, 36lb injectors, Richmond 4:10's w/ Auburn posi, PTC 3000 stall converter, Hughes shift kit, Jet billet servo, ported throttle body, Flex-A-Lite dual electric fans, ported Vortec heads w/valve job 2.02/1.60 , Pertronix ignition box, custom dyno tune, Competition 270 ahr, true dual exhaust ( JBA shorty ceramic headers, X pipe, no cat, 2 Spintech Pro shootouts.) 263 rwhp 298 ft lbs of torque
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post #30 of 71 Old 03-06-2010, 12:29 AM
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Re: 4.3 Camshaft

Quote:
Originally Posted by 03zq8s10 View Post
Actually your truck isn't making but about 140 to the wheels stock. I was pushing 265 to the wheels with my mods in sig before the new fuel setup. I should be seeing closer to 300 to the wheels right now.
you better hurry up and get that thing on the dyno! im gonna catch up to you real fast this summer.

1997 S10 266ci V6-turbo. 4l80e. 8.8. 23lbs.
10.93@122
526rwhp 531ftlbs on a mustang dyno @20lbs.
build thread-http://www.s10forum.com/forum/f11/no...r-more-481754/
2002 S10 2.2-DD 80% ZQ8 clone "TuTu Powa" w/efans. 98rwhp 111ftlbs!
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post #31 of 71 Old 03-06-2010, 01:45 AM
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Re: 4.3 Camshaft

so if i bought this cam from this guy.. (http://www.s10forum.com/classifieds/...ct/55953/cat/6) what all would i need to do to my heads.. i will be using beehive springs.. i wanna try and keep it the price of everything low as possible.. Could i use my factory rockers and whatever else would i use and what can i now use? i've read a lot about different cam swaps but it's been awhile since i've read much and i kinda dont remember all of what i read.. but thanks guy.

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post #32 of 71 Old 03-06-2010, 08:56 AM
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Re: 4.3 Camshaft

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either 180 or 190 stock...the fluid dampener is gonna be pricey, along with the wiseco pistons....i almost thought about buying a set of those but decided not to...how much are you planning on spending? mines around 5400 right now, not including the cost of getting my tranny rebuilt...lol
whatever it takes to get to 300 N/A.

me and my dad are doing the work so no labor, i just want to see 14's im not too picky...

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post #33 of 71 Old 03-06-2010, 09:13 AM
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Re: 4.3 Camshaft

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you better hurry up and get that thing on the dyno! im gonna catch up to you real fast this summer.
I know!

I need to for real.

Have you gotten the injectors yet?

2003 ZQ8 S-10. 4.3 Vortec Wynjammer supercharged, 36lb injectors, Richmond 4:10's w/ Auburn posi, PTC 3000 stall converter, Hughes shift kit, Jet billet servo, ported throttle body, Flex-A-Lite dual electric fans, ported Vortec heads w/valve job 2.02/1.60 , Pertronix ignition box, custom dyno tune, Competition 270 ahr, true dual exhaust ( JBA shorty ceramic headers, X pipe, no cat, 2 Spintech Pro shootouts.) 263 rwhp 298 ft lbs of torque
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post #34 of 71 Old 03-06-2010, 11:59 AM
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Re: 4.3 Camshaft

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whatever it takes to get to 300 N/A.

me and my dad are doing the work so no labor, i just want to see 14's im not too picky...
big custom ground cam, port and polish heads, bigger exhaust valves, probably new valves themselves, manley undercut or something, look way nicer than just having a set of stockers with a valve job, sebast19 has all this and 10:1 C/R and he has 280+ rwhp i think, not exactly 300 quite yet, his xtreme is a beast though...(youtube sebast19 and you'll see his xtreme on the dyno, at the track, running down the freeway with nos screaming, i absolutely love his truck so check it out!! i don't like the way his exhaust sounds though) lol i think he has a tci rattler harmonic balancer too, pricey. i would go with a set of total seal rings, i did...lol i forked out money for those things...im hoping with my setup i can get low 13s to mid 14s and then with a new gear change for the ass end, 373s or 390s i can hopefully be pushing 13s...my goal is 13s just because i think it'd be cool to say im doing that with a n/a v6. lol you're still gonna have to go with a big custom ground cam though to get that much power...but if you read the "fastest n/a 4.3l" thread in this section of the forum, people are pushing 13s door with the 270 cam....im hoping mine will too.

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01 xtreme 4.3L 5spd 2/3 drop w/ SS front bumper|.030 over|270 comp cam|500 lift|dual valve springs|10:1 C/R|p&p heads w/ 3 angle valve job|w4me tune|shorty headers|2.25 y pipe|no cat|Spintech muffler|windage tray|LW flywheel|DF clutch|8mm wires|no ac|efan|walbro 255|MPFI upgrade|Comp Cam timing chain|ARP bolts/studs|totaled***
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post #35 of 71 Old 03-06-2010, 12:00 PM
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Re: 4.3 Camshaft

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I know!

I need to for real.

Have you gotten the injectors yet?
hey man, are you running true duals or an xpipe? and do you by any chance know if those spintechs, have a single in dual out muffler?? i'm still undecided on what i wanna do for an exhaust...

Brian

01 xtreme 4.3L 5spd 2/3 drop w/ SS front bumper|.030 over|270 comp cam|500 lift|dual valve springs|10:1 C/R|p&p heads w/ 3 angle valve job|w4me tune|shorty headers|2.25 y pipe|no cat|Spintech muffler|windage tray|LW flywheel|DF clutch|8mm wires|no ac|efan|walbro 255|MPFI upgrade|Comp Cam timing chain|ARP bolts/studs|totaled***
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post #36 of 71 Old 03-06-2010, 08:03 PM
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Re: 4.3 Camshaft

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big custom ground cam, port and polish heads, bigger exhaust valves, probably new valves themselves, manley undercut or something, look way nicer than just having a set of stockers with a valve job, sebast19 has all this and 10:1 C/R and he has 280+ rwhp i think, not exactly 300 quite yet, his xtreme is a beast though...(youtube sebast19 and you'll see his xtreme on the dyno, at the track, running down the freeway with nos screaming, i absolutely love his truck so check it out!! i don't like the way his exhaust sounds though) lol i think he has a tci rattler harmonic balancer too, pricey. i would go with a set of total seal rings, i did...lol i forked out money for those things...im hoping with my setup i can get low 13s to mid 14s and then with a new gear change for the ass end, 373s or 390s i can hopefully be pushing 13s...my goal is 13s just because i think it'd be cool to say im doing that with a n/a v6. lol you're still gonna have to go with a big custom ground cam though to get that much power...but if you read the "fastest n/a 4.3l" thread in this section of the forum, people are pushing 13s door with the 270 cam....im hoping mine will too.


thanks for the info bro!

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post #37 of 71 Old 03-06-2010, 08:27 PM
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Re: 4.3 Camshaft

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Originally Posted by 03zq8s10 View Post
I know!

I need to for real.

Have you gotten the injectors yet?
i actually got a good deal on a marine intake that i couldnt pass up. so im going with that and 42lb injectors, plus i have a 270 sitting in my room, and im doing a new set of heads in my engine class right now with ls6 valve springs, a 3 angle valve job, stock size undercut valves, and light bowl work. the more i learn about heads the more i learn that i messed the ones up that are on there. also picking up hptuners this month and going to a 98 ecu. ive tossed around the idea of intercooling the jammer too

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post #38 of 71 Old 03-06-2010, 11:41 PM
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Re: 4.3 Camshaft

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thanks for the info bro!
np, and when i said low 13s to mid 14s...thats a pretty wide range, lol...i meant im shooting for high 13s to mid 14s at worst...i really wanna get into the 13 second range though...we'll see...

the one thing i don't like about my motor swap is how i only put in a 270 cam...if i could do it all over again id go with a bigger custom ground one...but o well. i guess it'll just be a quick parts getter for the 85 monte ss lol

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01 xtreme 4.3L 5spd 2/3 drop w/ SS front bumper|.030 over|270 comp cam|500 lift|dual valve springs|10:1 C/R|p&p heads w/ 3 angle valve job|w4me tune|shorty headers|2.25 y pipe|no cat|Spintech muffler|windage tray|LW flywheel|DF clutch|8mm wires|no ac|efan|walbro 255|MPFI upgrade|Comp Cam timing chain|ARP bolts/studs|totaled***
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post #39 of 71 Old 03-07-2010, 02:30 AM
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Re: 4.3 Camshaft

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hey man, are you running true duals or an xpipe? and do you by any chance know if those spintechs, have a single in dual out muffler?? i'm still undecided on what i wanna do for an exhaust...
True duals with an O/R X pipe. The X pipe makes the tone flow evenly. I have pics of my setup if you'd like to see. Yes, Spintech has a single in dual out muffler. Check out their site. I've been running the Pro shootouts for a while now and I love them. I definitely recommend Spintech.

2003 ZQ8 S-10. 4.3 Vortec Wynjammer supercharged, 36lb injectors, Richmond 4:10's w/ Auburn posi, PTC 3000 stall converter, Hughes shift kit, Jet billet servo, ported throttle body, Flex-A-Lite dual electric fans, ported Vortec heads w/valve job 2.02/1.60 , Pertronix ignition box, custom dyno tune, Competition 270 ahr, true dual exhaust ( JBA shorty ceramic headers, X pipe, no cat, 2 Spintech Pro shootouts.) 263 rwhp 298 ft lbs of torque
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Re: 4.3 Camshaft

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i actually got a good deal on a marine intake that i couldnt pass up. so im going with that and 42lb injectors, plus i have a 270 sitting in my room, and im doing a new set of heads in my engine class right now with ls6 valve springs, a 3 angle valve job, stock size undercut valves, and light bowl work. the more i learn about heads the more i learn that i messed the ones up that are on there. also picking up hptuners this month and going to a 98 ecu. ive tossed around the idea of intercooling the jammer too
42lbs? Holy crap man! Also gonna be running the same cam too. Sounds like a plan. I can't wait to get back on the track and lay down some better numbers.

What's the info on the intercooled Jammer? Everytime I mention that to Al over the phone he gets all over me about it.

2003 ZQ8 S-10. 4.3 Vortec Wynjammer supercharged, 36lb injectors, Richmond 4:10's w/ Auburn posi, PTC 3000 stall converter, Hughes shift kit, Jet billet servo, ported throttle body, Flex-A-Lite dual electric fans, ported Vortec heads w/valve job 2.02/1.60 , Pertronix ignition box, custom dyno tune, Competition 270 ahr, true dual exhaust ( JBA shorty ceramic headers, X pipe, no cat, 2 Spintech Pro shootouts.) 263 rwhp 298 ft lbs of torque
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post #41 of 71 Old 03-07-2010, 02:52 AM
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Re: 4.3 Camshaft

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True duals with an O/R X pipe. The X pipe makes the tone flow evenly. I have pics of my setup if you'd like to see. Yes, Spintech has a single in dual out muffler. Check out their site. I've been running the Pro shootouts for a while now and I love them. I definitely recommend Spintech.
nice, ya i definitely might just have to give them a shot...tired of my flowmaster. lol

Brian

01 xtreme 4.3L 5spd 2/3 drop w/ SS front bumper|.030 over|270 comp cam|500 lift|dual valve springs|10:1 C/R|p&p heads w/ 3 angle valve job|w4me tune|shorty headers|2.25 y pipe|no cat|Spintech muffler|windage tray|LW flywheel|DF clutch|8mm wires|no ac|efan|walbro 255|MPFI upgrade|Comp Cam timing chain|ARP bolts/studs|totaled***
Now owner of a white 2002 Blazer Xtreme
http://www.youtube.com/watch?v=CO_A1IrbQNM
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post #42 of 71 Old 03-07-2010, 11:55 AM
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Re: 4.3 Camshaft

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nice, ya i definitely might just have to give them a shot...tired of my flowmaster. lol
Man yeah. Spintech's sound very similar to Flowmaster at idle but reving it and driving it's louder. Also less drone inside the cab which I love. Sounds quiet inside the cab but I let a buddy of mine go up the road. My truck was out of seeing distance and I could still hear it. lol I was like no wonder I piss everyone off. haha

2003 ZQ8 S-10. 4.3 Vortec Wynjammer supercharged, 36lb injectors, Richmond 4:10's w/ Auburn posi, PTC 3000 stall converter, Hughes shift kit, Jet billet servo, ported throttle body, Flex-A-Lite dual electric fans, ported Vortec heads w/valve job 2.02/1.60 , Pertronix ignition box, custom dyno tune, Competition 270 ahr, true dual exhaust ( JBA shorty ceramic headers, X pipe, no cat, 2 Spintech Pro shootouts.) 263 rwhp 298 ft lbs of torque
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post #43 of 71 Old 03-07-2010, 01:05 PM
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Re: 4.3 Camshaft

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42lbs? Holy crap man! Also gonna be running the same cam too. Sounds like a plan. I can't wait to get back on the track and lay down some better numbers.

What's the info on the intercooled Jammer? Everytime I mention that to Al over the phone he gets all over me about it.
42LBS with the blower sounds good to me. Granted I say lets see you OD that blower to 15 to 20lbs. Hell I probably be running that on all motor. If the weather man plays nice next Saturday will be there at the track with 90 lbs of juice to tune the truck in for the first weekend of April since thats when the competition begins.

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post #44 of 71 Old 03-07-2010, 05:38 PM
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Re: 4.3 Camshaft

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42lbs? Holy crap man! Also gonna be running the same cam too. Sounds like a plan. I can't wait to get back on the track and lay down some better numbers.

What's the info on the intercooled Jammer? Everytime I mention that to Al over the phone he gets all over me about it.
i cant wait to get back on the track period. lol.
i was looking at some supercharger setups for the camaros and G8's and figured a simple way of setting up an intercooler on my truck much like those setups. right now its just an idea, if i have like 250-300 bucks this summer ill pick up the stuff to do it and try it. im also thinking about buyin a smaller pulley from Al, i wanna see what my intake temps are before i start spinning the jammer faster though. i might just start saving up money for a procharger head unit, a d1sc, instead of trying to get more boost out of the wynjammer.

1997 S10 266ci V6-turbo. 4l80e. 8.8. 23lbs.
10.93@122
526rwhp 531ftlbs on a mustang dyno @20lbs.
build thread-http://www.s10forum.com/forum/f11/no...r-more-481754/
2002 S10 2.2-DD 80% ZQ8 clone "TuTu Powa" w/efans. 98rwhp 111ftlbs!
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post #45 of 71 Old 03-07-2010, 06:05 PM
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Re: 4.3 Camshaft

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i cant wait to get back on the track period. lol.
i was looking at some supercharger setups for the camaros and G8's and figured a simple way of setting up an intercooler on my truck much like those setups. right now its just an idea, if i have like 250-300 bucks this summer ill pick up the stuff to do it and try it. im also thinking about buyin a smaller pulley from Al, i wanna see what my intake temps are before i start spinning the jammer faster though. i might just start saving up money for a procharger head unit, a d1sc, instead of trying to get more boost out of the wynjammer.
Me too man I'm ready. Check out my new wheel setup in the Xtreme/ZQ8 section.
I love Wynjmmer but it doesn't matter how much I have I always want more. It seems only a few guys have tried the new 36lb injector setup. It feels a lot stronger than before so I'm happy. I may ask Al about a smaller pulley as well. Now that I'm fueling mine better. Like we both stated before we're seeing as much as 10 psi on our head units. I don't know what else to do to my truck now. I want to do a 75-100 shot but don't know how it'll hold up. What do you think?

2003 ZQ8 S-10. 4.3 Vortec Wynjammer supercharged, 36lb injectors, Richmond 4:10's w/ Auburn posi, PTC 3000 stall converter, Hughes shift kit, Jet billet servo, ported throttle body, Flex-A-Lite dual electric fans, ported Vortec heads w/valve job 2.02/1.60 , Pertronix ignition box, custom dyno tune, Competition 270 ahr, true dual exhaust ( JBA shorty ceramic headers, X pipe, no cat, 2 Spintech Pro shootouts.) 263 rwhp 298 ft lbs of torque
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post #46 of 71 Old 03-07-2010, 06:07 PM
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Re: 4.3 Camshaft

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42LBS with the blower sounds good to me. Granted I say lets see you OD that blower to 15 to 20lbs. Hell I probably be running that on all motor. If the weather man plays nice next Saturday will be there at the track with 90 lbs of juice to tune the truck in for the first weekend of April since thats when the competition begins.
That sounds great to me. Make sure you get a video or two!

2003 ZQ8 S-10. 4.3 Vortec Wynjammer supercharged, 36lb injectors, Richmond 4:10's w/ Auburn posi, PTC 3000 stall converter, Hughes shift kit, Jet billet servo, ported throttle body, Flex-A-Lite dual electric fans, ported Vortec heads w/valve job 2.02/1.60 , Pertronix ignition box, custom dyno tune, Competition 270 ahr, true dual exhaust ( JBA shorty ceramic headers, X pipe, no cat, 2 Spintech Pro shootouts.) 263 rwhp 298 ft lbs of torque
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post #47 of 71 Old 03-07-2010, 10:38 PM
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Re: 4.3 Camshaft

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Me too man I'm ready. Check out my new wheel setup in the Xtreme/ZQ8 section.
I love Wynjmmer but it doesn't matter how much I have I always want more. It seems only a few guys have tried the new 36lb injector setup. It feels a lot stronger than before so I'm happy. I may ask Al about a smaller pulley as well. Now that I'm fueling mine better. Like we both stated before we're seeing as much as 10 psi on our head units. I don't know what else to do to my truck now. I want to do a 75-100 shot but don't know how it'll hold up. What do you think?
ill check out the wheels.
we can push more boost with our head units, but at what point is the efficiency going to drop off or are we going to start ripping through bearings? boost also makes heat so your gonna need an intercooler to push it the furthest you can too.
i would start with a smaller shot and work your way up tunning it each time, you are still on the stock short.. then when you blow it up build a new motor.

1997 S10 266ci V6-turbo. 4l80e. 8.8. 23lbs.
10.93@122
526rwhp 531ftlbs on a mustang dyno @20lbs.
build thread-http://www.s10forum.com/forum/f11/no...r-more-481754/
2002 S10 2.2-DD 80% ZQ8 clone "TuTu Powa" w/efans. 98rwhp 111ftlbs!
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post #48 of 71 Old 03-08-2010, 12:25 AM
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Re: 4.3 Camshaft

S10stocker, Mine sounds really similar to that. Mine is a custom grind Based off the 270 with .525/.525 lift and 1.6 rollers..

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post #49 of 71 Old 03-08-2010, 04:28 PM
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Re: 4.3 Camshaft

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S10stocker, Mine sounds really similar to that. Mine is a custom grind Based off the 270 with .525/.525 lift and 1.6 rollers..
Next time out I will do a walk around recording since the spring change which I am sure they made the sound change unless I'm going crazy or my brain wants to hear a change. I'm running out of time before the Cajun Sports Nationals. After one fairly clean 12.40 pass at 104.91 weighing about 3040lbs the engine went stupid. Found some valve setting changed and a broken rocker arm. Originally thought it was RA flex but found I was actually hitting the studs. I opened up the holes on one set and sent off another set for Cryo. I will try the opened up set first since the Cryoed set won't be in until Friday or Monday. Depending on weather I will test Wednesday or Friday but I will race the Cajun Sports Nationals one way or another. Keep track on dragracecentral if interested.

P.S. Ever think your engine doesn't sound as good recorded or is it just me?

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post #50 of 71 Old 05-19-2010, 02:49 AM
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Re: 4.3 Camshaft

i got a 2001 dime with a 4.3 what is the biggest cam (duration) and lift that you can put in a 4.3. i got a fresh block that's 0.60 over and I'm picking out a cam. i got head work done 2.02 and 1.6 valves, roller rockers, and mechanical roller lifters. trying to get higher RPM . I'm trying to use the stock computer ... does anyone know what will the factory ECU will let me adjust to. im aware that some ECUs will not let you do any adjustment beyond a certain point.

If your wondering its a budget street/strip truck
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