Nah...they won't sticky shit unless you ask...
2.8 and 60* V6 Performance Mods
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Oh, I didn't realize that. I guess I was misinformed.
Is this really worth a sticky?
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Additional carb info:
There are 2 aftermarket manifolds for these enignes.
1. The common Edlebrock intake. It offers 2 intake tops, one for the stock 82 - 85 Rochester, the other top is for a Holley 4 barrel.
2. Offenhauser makes a "Daul Port" 4 barrel intake which is VERY rare.
I don't know how welll this works, I have never used it.
Check this out:
Here's a third option:
Custom built...
Tunnel ram intake. Probably not too good for a street driven truck.
Anyway, you get the idea.
There are other combinations. They mostly use a 4 barrel intake, but then use a fuel injection system that is stand alone and uses a Holley "Pro-jection" or similar bolt on system. These are totally tuneable by the user.
I guess I'm going into the high end performance which of course means big $$.
I think someone on the forum used the Edelbrock intake and ran the TBI by adapting it to the manifold. That may offer another alternative by keeping the TBI.
A few additional intake options:
Weber 38/38 Outlaw carb mounted on a stock or better yet... Edelbrock intake.
You can also use a 32/36 Weber on the stock or Edelbrock intake. This carb will give good fuel mileage, but will somewhat limit higher power output.
Here is a one off custom intake for 3 Weber 2 barrel downdrafts:
I will have to custom machine alot of parts to make this work. I have never seen another like it.
There are 2 aftermarket manifolds for these enignes.
1. The common Edlebrock intake. It offers 2 intake tops, one for the stock 82 - 85 Rochester, the other top is for a Holley 4 barrel.
2. Offenhauser makes a "Daul Port" 4 barrel intake which is VERY rare.
I don't know how welll this works, I have never used it.
Check this out:
Here's a third option:
Custom built...
Tunnel ram intake. Probably not too good for a street driven truck.
Anyway, you get the idea.
There are other combinations. They mostly use a 4 barrel intake, but then use a fuel injection system that is stand alone and uses a Holley "Pro-jection" or similar bolt on system. These are totally tuneable by the user.
I guess I'm going into the high end performance which of course means big $$.
I think someone on the forum used the Edelbrock intake and ran the TBI by adapting it to the manifold. That may offer another alternative by keeping the TBI.
A few additional intake options:
Weber 38/38 Outlaw carb mounted on a stock or better yet... Edelbrock intake.
You can also use a 32/36 Weber on the stock or Edelbrock intake. This carb will give good fuel mileage, but will somewhat limit higher power output.
Here is a one off custom intake for 3 Weber 2 barrel downdrafts:
I will have to custom machine alot of parts to make this work. I have never seen another like it.
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652 Posts
Hey Madmax,
I was looking at the crane cams in one of your links. The first one listed the H192-2667-25-12 says "Brute low end torque". Would this mean more power at the line? Not necessarily speed, but pulling capacity?
Would it also give better fuel economy? What if you also put in higher gears with this cam, lets say a 3.08?
Just thinking. Do I have the right idea?
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Usually the low end torque cams are better with fuel economy and give good power to about 4000 to 4500 RPM. The "off line" power is noticeably better than the stock cam and would probably be no problem with a 3.08 gear, depending on what you add for intake and exhaust and manual or auto transmission.
If you were to gain 15 HPs at the low end (which is possible), you would notice a substantial difference, and at cruising speeds, it would pull a 3.08.
Of course, a manual tranny would work better with the 3.08
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Yes, it would be great with an otherwise stock engine. You will need new lifters, but roller rockers would be optional. You generally don't need roller rockers until you get into a 1/2" of cam lift (.500).
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I was looking for any issues related to using this cam. I did find one. Here in the US, if you live in an emission controlled area, the use of this cam would be "illegal". Your car would likely not pass emissions and there fore you could not register it and get plates. At lease this is my understanding.
I am going to go to the motor vehicle in the next few days and get some clarification on the issues before I spend the money for the parts.
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Unless you live in Cali, most every state exempts vehicles the are older than a 96 model year. This is when OBD II was required on all vehicles and they usually plug them into a computer to detect problems. Prior to 96, most vehicles were OBD I or carbed. I am pretty sure you will not have a problem with your vehicle. Does Colorado have emission sniffers for inspection?
There are many states that don't do safety or emission inspections.
There are many states that don't do safety or emission inspections.
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652 Posts
they do an test and visual inspection. The test is on a dynamometer(sp). It check for the three biggies. Once my car reaches 32 years old they do a simple 2 speed idle test.
They do have some exemptions for custom and home built cars. I was going to go ask what is required to be custom. So if I built my motor, changed some rear end gearing, added gauges, changed the paint, is that custom enough?
I'll find out
They do have some exemptions for custom and home built cars. I was going to go ask what is required to be custom. So if I built my motor, changed some rear end gearing, added gauges, changed the paint, is that custom enough?
I'll find out
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652 Posts
Hey Mad Max,
I have been corresponding with the customer service guy over at Crane Cams. The cam in question is also designed to be used in smog controlled vehicles and is legal in all states that have not adopted California standards. The cam also increases fuel efficiency. I do not know how much but I di a quick calculation based on a guess of 10% increase in efficiency.
The cam, lifters, gaskets, and shipping will run me about $350. If I realize a 10% increase, then at $3.50 a gallon that is $0.35 per gallon savings. Divide the $350 cost by that and it will take about 1000 gallons to recoup the cost. Since I am getting about 18 mpg, that would be about 18k miles driven to recoup. I drive about 1k miles a month so it would take 18 months to recoup. And, I would be having the better low end torque and performance I wanted all that time.
Seems like a no brainer if you have the $350 and the skill to do the install.
I'll be ordering the parts next week.
thanks again,
mark
I have been corresponding with the customer service guy over at Crane Cams. The cam in question is also designed to be used in smog controlled vehicles and is legal in all states that have not adopted California standards. The cam also increases fuel efficiency. I do not know how much but I di a quick calculation based on a guess of 10% increase in efficiency.
The cam, lifters, gaskets, and shipping will run me about $350. If I realize a 10% increase, then at $3.50 a gallon that is $0.35 per gallon savings. Divide the $350 cost by that and it will take about 1000 gallons to recoup the cost. Since I am getting about 18 mpg, that would be about 18k miles driven to recoup. I drive about 1k miles a month so it would take 18 months to recoup. And, I would be having the better low end torque and performance I wanted all that time.
Seems like a no brainer if you have the $350 and the skill to do the install.
I'll be ordering the parts next week.
thanks again,
mark
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652 Posts
Mad max,
what do you think of this kit from sumit racing?
http://www.summitracing.com/parts/cca-k16-232-4/overview/make/chevrolet
duration of 252/252 and a lift of .425/.425
thoughts on how it would perform?
what do you think of this kit from sumit racing?
http://www.summitracing.com/parts/cca-k16-232-4/overview/make/chevrolet
duration of 252/252 and a lift of .425/.425
thoughts on how it would perform?
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I did some research in the past, this is almost identical to the cam that comes in the GM 3.4 crate engine. It's alot better than the stock 2.8 cam, I think I posted the specs at the beginning of this thread.
If mileage and low end is your goal, this cam will fit the bill.
BTW, shop around, I bought one of my cams on Ebay for $80, and lifters were another $65 IIRC.
I've seen many guys buy these cams and never get around to installing them. They sell them cheap, but you have to have good timing....
Here ya go:
http://www.ebay.com/itm/Chevy-2-8-3...ies&hash=item27ebffe710&vxp=mtr#ht_1145wt_885
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652 Posts
What about this guy?
http://www.ebay.com/itm/191268125573
I noticed the torque spec chart shows this with a performance manifold and 1.5" headers. I do not have either of these items. Will that be a problem?
I am leaving for the weekend.
See you folks later!
mark
http://www.ebay.com/itm/191268125573
I noticed the torque spec chart shows this with a performance manifold and 1.5" headers. I do not have either of these items. Will that be a problem?
I am leaving for the weekend.
See you folks later!
mark
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Just saw your post about this cam. The problem with running this cam and the stock intake/exhaust is it won't be able to give you the maximum output it was designed for.
The Rochester carb will definately be a loser too. I am guessing it will be WAY too lean and won't be able to idle well at all.
With headers and an intake, you will probably be totally surprised at how much more power the engine will make.
Gas mileage will suffer though...
The Rochester carb will definately be a loser too. I am guessing it will be WAY too lean and won't be able to idle well at all.
With headers and an intake, you will probably be totally surprised at how much more power the engine will make.
Gas mileage will suffer though...
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68 Posts
Im currently in the process of turboing my '91 2.8 5speed dime.
Im getting alot of my parts from 3rd gen camaro like intake and injectors and rail and stuff
And ill everything else from ARI's website. They specialize in all that.
Head work
Cams
Bottom end
Top end
Everything..
I currently have a list of 99% of everything I need. Minus the small misc stuff.
Im getting alot of my parts from 3rd gen camaro like intake and injectors and rail and stuff
And ill everything else from ARI's website. They specialize in all that.
Head work
Cams
Bottom end
Top end
Everything..
I currently have a list of 99% of everything I need. Minus the small misc stuff.
Joined
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10,859 Posts
Sounds cool. Any pics?
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