Typhoon/Syclone engine swaps and ideas

[uhlhazard]

I have been tossing the idea around in my head about buying a turbo conversion for my jimmy to make it like a typhoon. Well I have not really found any information regarding the swap that is very helpful nor have I found (in my limited searching) any places that sell a kit or anything of that sorts.

I was on ebay the other day and searched Syclone and found this:

http://cgi.ebay.com/ebaymotors/Cars-...3756.m14.l1318

I figured that if it sold for 5K, I could just buy that and swap the engine to my 4x4 Jimmy.

The reason being, I'd like to have 2wd power for 90+% of my driving and push button 4wd launching if I REAAAALLy have to. Plus, that kind of power (supposedly around 280-310 BHP) would really kick ass when I am wheeling (no water or mud 99% of the time). I don't particularly care for the awd system on an a stock sy/ty. Though it is neat I don't really see myself driving in the situations that it really benefits from. Being in the south, the only 4x4 usage is when I want to and not when nature requests it, not to mention that it is supposed to get about 1mpg less than I currently get.

How could you not take 1/3d more power for only 1mpg penalty. Plus it would rock for towing small/medium single axle trailers with atv's and the like.

And lets be honest. I would be faster than most cars. That really is a big motivator.

I really need some information on the technical aspects on this. My 94 has a 4l60e. The 93 model s10s all have 4l60e's afaik. So if I get a 93 sy/ty, can't I just slap that engine into my jimmy's engine bay and really just move some parts around?

Can I just swap the computer or possibly harness from the sy/ty donor to the jimmy. I am aware of the exhaust being dual but it seems to me a relatively simple engine swap with bolt-on work and no fabrication. What exactly are the pitfalls in this regard?

Obviously being the only post here on the sy/ty area, the information is limited to me and this site seems chock full of intellectually endowed enthusiasts.

Help a brotha out!



P.S. There are 2 gremlins that I think might present themselves in the machine. The rear diff nading (g80) and my stock transmission. I don't want the floor shifter from the typhoon and am unaware if I can hook up my column shifter to the typhoons tranny.

THANKS!

[neo71665]

Been done to a second gen. As soon as I find the forum and thread (if I can) I'll post it. I don't really recall what all it took but can't be much motor wise. I would think the computer issues might be a bigger PITA one being a OBD1 and the other being a obd1.5

[uhlhazard]

Quote: Originally Posted by neo71665

I would think the computer issues might be a bigger PITA one being a OBD1 and the other being a obd1.5

I have never heard of obd1 and obd1.5. I would guess the 1.5 is the aldl that is in the form of an obd2 connector under the dash but was on most 1995 model years? It seems the 95 year model cars from most manus were a Chimaira of past, present, and future technologies.

[neo71665]

94 (95 blazers) to 96 or 7 have odb1.5 bastard computers. From my understanding its pretty much a obd1 brain with the obd2 port. Its from the time GM was playing with swapping over to obd2.

I don't know much about them as I'm a first gen (obd1) only guy. My brother might be able to help you more as hes played with a 94 for a few months before he gave up and traded it for his 98. I'll just have to get him online sometime.

[Captain Morgan]

Quote: Originally Posted by uhlhazard

I have been tossing the idea around in my head about buying a turbo conversion for my jimmy to make it like a typhoon. Well I have not really found any information regarding the swap that is very helpful nor have I found (in my limited searching) any places that sell a kit or anything of that sorts.

I was on ebay the other day and searched Syclone and found this:

http://cgi.ebay.com/ebaymotors/Cars-...3756.m14.l1318

I figured that if it sold for 5K, I could just buy that and swap the engine to my 4x4 Jimmy.

The reason being, I'd like to have 2wd power for 90+% of my driving and push button 4wd launching if I REAAAALLy have to. Plus, that kind of power (supposedly around 280-310 BHP) would really kick ass when I am wheeling (no water or mud 99% of the time).

its not the HP that makes SyTys "fast", its the torque, rated at 365 lb ft from the factory, it was GREATLY misleading as shown by multiple stock SyTys back in the day, putting down 500+ lb ft. numbers on dynos. This setup you think is going to be so great is just going to cost you lots of money in the long run, trust me.

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I don't particularly care for the awd system on an a stock sy/ty. Though it is neat I don't really see myself driving in the situations that it really benefits from. Being in the south, the only 4x4 usage is when I want to and not when nature requests it, not to mention that it is supposed to get about 1mpg less than I currently get.

you have obviously never been in a SyTy. You dont need mud, snow or dirt to make use of the AWD system. In 2WD, youre going to blow through more rear tires than your wallet is going to want to replace, and forget about it when it rains, you might as well just keep it parked in the driveway. You dont particularly care for the AWD system.... why? because its the ONLY strong part in the entire drivetrain? lol.

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How could you not take 1/3d more power for only 1mpg penalty. Plus it would rock for towing small/medium single axle trailers with atv's and the like.

1mpg penalty.... dont forget you will no longer be able to fill up on regular unleaded. SyTys require a minimim of Premium, unless you wanna do a couple motor rebuilds as well. As for trailers, youll think its great till your smoke your first trans from towing all that stuff. SyTys have a 0 lb. towing capacity, just FYI.

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And lets be honest. I would be faster than most cars. That really is a big motivator.

except when your sitting at the line smoking your tires (unless you happen to slip it into 4WD before stopping at the light, lol). The AWD is what makes SyTys killers off the line. They have absolutely nothing to offer on the top end.

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I really need some information on the technical aspects on this. My 94 has a 4l60e. The 93 model s10s all have 4l60e's afaik. So if I get a 93 sy/ty, can't I just slap that engine into my jimmy's engine bay and really just move some parts around?

First of all, there is no such thing as a 93 sy/ty, they only made syclones in 1991, so your odds of finding a 1993 syclone are pretty slim, lol. Second, although GM used the 4L60E in 99% of the vehicles previously equiped wiht the 700R4, the 93 Typhoon still used the 700R4, so no, you cannot use your 4L60E unless you run a stand alone computer for it.

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Can I just swap the computer or possibly harness from the sy/ty donor to the jimmy. I am aware of the exhaust being dual but it seems to me a relatively simple engine swap with bolt-on work and no fabrication. What exactly are the pitfalls in this regard?

No, the computers are completely incompatible. SyTys used a modified version of a 80's pontiac Sunbird ECM. Your truck, having an electronic trans, different engine computer and electronic transfercase, dont expect anything to be plug and play..... should be FAR from it.

As for the exhaust, I dont know where you got dual exhaust from, but it seems like you have put about as much research in on that as you have the rest of this swap. SyTys have a single downpipe that run down kinda where the passenger side pipe would run down on a standard S-Series, however SyTys have no y-pipe, they have a crossover pipe that runs under the FRONT of the engine, not the back. I suppose in theory, if you were able to reuse all the parts and your truck was a 2 door as well, then you may have half a chance of it being bolt in.

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Obviously being the only post here on the sy/ty area, the information is limited to me and this site seems chock full of intellectually endowed enthusiasts.

Help a brotha out!

here is some help.

1. dont ruin a Typhoon just to put the engine in your POS Jimmy.
2. do a V8 swap like everyone else. It will be FAR cheaper and provide better power for the situations you plan on using it for (off road, ect)
3. there is more than just 1 post in this forum, you simply need to change the dates of the posts shown at the bottom of the forum options.

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P.S. There are 2 gremlins that I think might present themselves in the machine. The rear diff nading (g80) and my stock transmission. I don't want the floor shifter from the typhoon and am unaware if I can hook up my column shifter to the typhoons tranny.

THANKS!

I wouldnt worry about your rear unless it already has problems. SyTy rears are nothing special to being with. Your transmission, expect to blow up about 2 or 3 of them if you plan on doing any off roading or any long term towing. Hard shifting performance transmissions are not designed for that kind of use, and your stock slushbox was not designed for performance use. If you do plan on going on with this "project", then expect to shell out $2000 for a decent SyTy spec rebuild and another $500 - $700 for a good converter.

[uhlhazard]

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unless you happen to slip it into 4WD before stopping at the light, lol

The 4wd is push button. I can be doing 70mph and engage 4wd. There are always exceptions to that rule but it seems you have never ridden in a pos 1994 4x4 before regardless of the fact this site alone is chock full of easily accessable (even to my simple mind) information in regards to that subject.

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As for the exhaust, I dont know where you got dual exhaust from, but it seems like you have put about as much research in on that as you have the rest of this swap.

I saw a picture of the undercarriage of one on ebay that had dual exhaust until the muffler. It was the only sy/ty that I have ever seen the bottom side of.
Research see below:

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Obviously being the only post here on the sy/ty area, the information is limited to me -hazard

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3. there is more than just 1 post in this forum, you simply need to change the dates of the posts shown at the bottom of the forum options. -morgan

Please pardon my lack of omniscience in the forum department.

It is clear to me that your driving style differes greatly from that of my own. I drive slow, I don't floor it every chance I get. I've already decided against the v8 swap for a few reasons: I like driveability. I don't want what precious room under the hood eaten away another 4+ inches foreward for the 5.7 v8. I have been considering the 4.8v8 as a posibility but am unaware of it's specs in detail.

Due to my limited ability to research the sy/ty I made this post here hoping someone like yourself minus the unnecessarily condescending nature of your post to help guide me along and explain some of the potential pitfalls (eg 700r4 only no 4l60e) and other issues that would surround this project.

I have found a few wrecked sy/ty's in the past months that sell for roughly 3K and retain a large majority of the drivetrain still intact. This is what I was hoping to pick up.

I most likely would not buy a running and driving sy/ty that has no real issues and gut it out but if the price was right, I'd have to definitely consider it.

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SyTys have a 0 lb. towing capacity

How exactly does an engine that produces this much power lack towing capacity? This defies my understanding of physics. As far as your belief that I will destroy transmissions if I tow with that engine in my Jimmy, I have to ask: Are you still in the mindframe that I would be towing my atv at WOT out to the track to race? If that is so than I would understand but this would also sugguest that you have based your input egregiously on the assumption that I would drive in a manner better suited to a person like yourself?

Thanks for the input though. I did have to wade through some crap to get to it but I'd rather you posted than not.

[King_Ice_Flash2]

Quote: Originally Posted by uhlhazard

How exactly does an engine that produces this much power lack towing capacity?

Have you ever seen how hot the exhaust manifold gets on a turbo system? The were not designed for a constant heavy load. Plus, those 700R4 transmissions were not very durable. You end up rebuilding them after about 45K on a Sy/Ty

[eutechnyx]

Yeah and im sure its not geared anywhere near what youre going to need to tow anything up to a riding lawn mower and besides why would you tear up a perfectly respectable sy/ty to put the motor in a pos jimmy with 4x4? that would be like taking a corvette and ripping the motor out and replacing it with a honda vtec 1.8L just buy the sy/ty and leave it alone,actually better yet dont buy one at all the way youre talking now youll prob just ruin it anyways.

[Captain Morgan]

Quote: Originally Posted by uhlhazard

The 4wd is push button. I can be doing 70mph and engage 4wd. There are always exceptions to that rule but it seems you have never ridden in a pos 1994 4x4 before regardless of the fact this site alone is chock full of easily accessable (even to my simple mind) information in regards to that subject.

no dude, try READING what I posted instead of assuming. I said putting it INTO 4WD BEFORE YOU STOP. Im well aware you can put it into 4WD on the fly, however like EVERY 4x4 system, manual or electronic, if you are sitting at a DEAD STOP and put it into 4WD, it will NOT fully engage until you start to move, hence why shift-on-the-fly works.

So, going back to my original senario, if you are sitting at a light and something pulls up next to you, Id love to be sitting on the side of the road watching as you blow your transfercase up when it slams into 4WD when you boost launch from the light cause it wasnt fully engaged

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I saw a picture of the undercarriage of one on ebay that had dual exhaust until the muffler. It was the only sy/ty that I have ever seen the bottom side of.

well then it wasnt a SyTy or it was possibly a highly modified twin turbo setup. Either way, they are single exhaust with except to the Syclones that have side by side pipes after the muffler. eBay probably isnt the best place to do research on an engine swap.

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Please pardon my lack of omniscience in the forum department.

will do.

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It is clear to me that your driving style differes greatly from that of my own. I drive slow, I don't floor it every chance I get.

neither do I, however like I said earlier, you have never driven a SyTy or even ridden in one for that matter. You have never experienced the neck snapping 1-2 shift reguardless of WOT or not, its just how they are. I run 315/35R17's on the back of my Typhoon and I can still chirp the rear tires on the 1-2 shift under normal driving conditions (not WOT). If Im running without my proshaft (aka 2WD) and I hit the 1-2 shift, then forget about traction with street radials.

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I've already decided against the v8 swap for a few reasons: I like driveability. I don't want what precious room under the hood eaten away another 4+ inches foreward for the 5.7 v8. I have been considering the 4.8v8 as a posibility but am unaware of it's specs in detail.

If you like driveability or even reliablity for that matter, then a SyTy swap isnt for you either. What are your plans for that 4" of room you are affraid of losing?

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Due to my limited ability to research the sy/ty I made this post here hoping someone like yourself minus the unnecessarily condescending nature of your post to help guide me along and explain some of the potential pitfalls (eg 700r4 only no 4l60e) and other issues that would surround this project.

I wasnt being condescending, I was being honest and trying to steer you in the right direction before you wasted your time and hard earned money on this swap. It is FAR from ideal for you.

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I have found a few wrecked sy/ty's in the past months that sell for roughly 3K and retain a large majority of the drivetrain still intact. This is what I was hoping to pick up.

I most likely would not buy a running and driving sy/ty that has no real issues and gut it out but if the price was right, I'd have to definitely consider it.

ok.

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How exactly does an engine that produces this much power lack towing capacity? This defies my understanding of physics.

that doesnt surprise me.

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As far as your belief that I will destroy transmissions if I tow with that engine in my Jimmy, I have to ask: Are you still in the mindframe that I would be towing my atv at WOT out to the track to race? If that is so than I would understand but this would also sugguest that you have based your input egregiously on the assumption that I would drive in a manner better suited to a person like yourself?

I believe you will destroy a trans reguardless of towing or not. Im sure your tall tires and off roading will take care of that long before towing has anything to do with it. Stop assuming I drive at WOT all the time, it makes you look stupid. No, I am not assuming you would be driving at WOT, but can I assume you dont really understand the concept of a performance transmission, how its designed to work differently than one made for towing or off-road use, the concept of high stall converters, high performance servos or how heat is the #1 killer of transmissions?

If you did, then you wouldnt be asking why SyTys have a 0 Lb towing capacity, because you would understand they were not DESIGNED for that.

Sure, you can tow a jetski, or a quad or a motorcycle, but it would not be recommedned and if you were dead set on doing it, then I would hope you would take some precautions suchs as a large auxilary stacked plate trasmission cooler, deep aluminum pan, trans temp gauge and never running synthetic trans fluid for starters.

here's a little syty info straight from the dealer brochure;

Typhoon, Syclone and Sonoma GT are designed to be high performance vehicles. Cargo and towing are therefore restricted. Typhoon has a cargo rating of 900 lbs. Syclones's cargo box is rated for 500 lbs. Sonoma GT has a 6000-lbs. towing capacity* and a 964 lbs. cargo box rating.


*When properly equipped, maximum trailer weight includes trailer, passengers, cargo and equipment.

also, here are 2 decals that are standard equipment on ALL SyTys, one on the tailgate, and one under the drivers visor....

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Thanks for the input though. I did have to wade through some crap to get to it but I'd rather you posted than not.

I see no crap, just getting you to the point faster then you would have probably liked.
If you dont want to do a V8 swap, then might I recommend doing some naturally aspirated 4.3L upgrades, such as a nice cam, ported L35 heads and some computer tuning?

[neo71665]

Best bet IMHO if you must have power, AWD, and tow.

V8-tons of power
astro AWD transfer case-been proven to be a bit stronger than the Sy/Ty
Both will hold up to towing

If push comes to shove and you can find a astro transfer case look at bravadas. Both of those are not geared like the sy/ty and should hold up under heavy towing loads a bit better.

[Captain Morgan]

Quote: Originally Posted by neo71665

Best bet IMHO if you must have power, AWD, and tow.

astro AWD transfer case-been proven to be a bit stronger than the Sy/Ty

If push comes to shove and you can find a astro transfer case look at bravadas. Both of those are not geared like the sy/ty and should hold up under heavy towing loads a bit better.

ummmm, you too couldnt be more wrong.

A. Syclone, Typhoon, Astro, Safari, and Bravada ALL share the same transfercase, the Borg-Warner 4472. There is no difference in strength, infact the only difference is the spline count on input or output shafts on earlier vs. later models.

Even if the Astro transfercase was "stronger" , SyTy transfercases have withstood 800+ HP abuse on a constant basis, more than enough to handle any normal streetable vehicle.

B. Syclones, Typhoons and Bravadas are ALL geared exactly the same. They use the same transmission, although the 1993 Bravada used the 4L60E, the gearing is the same as the 700R4. Syclones, Typhoons and Bravadas ALL have 3.42 ratio, front and rear differentials.

The Astro/Safari did have a 3.23 and optional 3.73 differential ratios, however the AWD version had the same 3.42 ratio, same as the S-Series line.

Astro Final Drive Ratio
3.23 (2-wheel drive)
3.42 (all-wheel drive)
3.73 (optional)

If you are going to give information, please make sure its accurate, even remotely.

Anyway, like I already stated 2 or 3 times in this thread, its not the gearing that makes the SyTy incapable of towing or off road use, its the way the engine and transmission work that make them incapable of these tasks (at least for long term).

[Deeze49686]

besides, why ruin a truck that is worth more than the jimmy he wants to do the transplant to? thats focking stupid.

for 5 grand, you can build a supercharged 4.3, and use all the driveline crap in your jimmy now. or even a pretty good turbo setup if you do your homework, which it appears you havent.

im doing the same as what you want to achieve, and heres what im goign to run.

99 4wd jimmy 2 door, lowered 3/5

the driveline is a 383 vortech

10 to 1 roller, iron heads, pump gas
the driveline is a 700r4 with 4l75E trailblazser ss guts
and a 95 awd astro t-case and an astro awd ft diff assembly.

its all wheel drive no buttons, no BS, the only thing i have to do is get the holley pro-jection working, and the torque convertor lockup wired in, and get a back glass, and its done.

ill bet you i can tow with it, it will hook better than a sy/ty, and be turn key, and totally reliable.

total invested 6400 not including labor and the super comp long tubes i have to get modified to fit and coated.......

probably 7500.....

[neo71665]

Quote: Originally Posted by Captain Morgan

ummmm, you too couldnt be more wrong.

A. Syclone, Typhoon, Astro, Safari, and Bravada ALL share the same transfercase, the Borg-Warner 4472. There is no difference in strength, infact the only difference is the spline count on input or output shafts on earlier vs. later models.

Even if the Astro transfercase was "stronger" , SyTy transfercases have withstood 800+ HP abuse on a constant basis, more than enough to handle any normal streetable vehicle.

B. Syclones, Typhoons and Bravadas are ALL geared exactly the same. They use the same transmission, although the 1993 Bravada used the 4L60E, the gearing is the same as the 700R4. Syclones, Typhoons and Bravadas ALL have 3.42 ratio, front and rear differentials.

The Astro/Safari did have a 3.23 and optional 3.73 differential ratios, however the AWD version had the same 3.42 ratio, same as the S-Series line.

Astro Final Drive Ratio
3.23 (2-wheel drive)
3.42 (all-wheel drive)
3.73 (optional)

If you are going to give information, please make sure its accurate, even remotely.

Anyway, like I already stated 2 or 3 times in this thread, its not the gearing that makes the SyTy incapable of towing or off road use, its the way the engine and transmission work that make them incapable of these tasks (at least for long term).

Well when I was looking at swapping my 4x4 out to AWD everything I saw pointed at the astros being a bit stronger and different gearing options. I gave up on the idea and decided to stick with normal 4x4 so I never looked much further into it.

[uhlhazard]

I really feel like Captain Morgan's opinions are held to a higher standard than the rest of us. You should be called Captain Flamebait.

I realize you are an admin, I realize you have been here for 6 years and have 14K+ posts, it would be prudent for me to ASS U ME that you might have donated time/finances possibly the most to keep this excellent informational database online. For that you deserve props.

Here they are: Thanks CPT!

NOW, for clarity. The majority of posts here contain usefull information.

I am here because I have done little research aka homework. This is why I posted. I have found it relatively difficult to find any concrete information in this needle in a haystack of google searches I have amassed.

I have learned that the stock tranny seems to have a shift kit. Good, I don't want hard shifts. I have learned the awd xfercase is not for offroading. Good, I didn't want that. I don't necessarily plan on gutting a fully functional sy/ty.

I just want the engine.

Gearing: 3.42. good, I already have that. Transmission ratios: the same. Good, that works in my pickup just fine.

Now we should hopefully be on the same page. Without knowing certain prerequisites it is hard to know what to ask for. I apologise now and in advance for the confusion.

Now I think I know what to ask.

I seem to now have 1 real hurdle:

The transfer case. From recent dealer experiences, my electronic transfer case works with the pcm or ecu or whatever they are currently calling the engine computer. This would most likely not work with the sy/ty ecu. I might have to get a manual shift transfer case. That might not require a computer to function. (ass u me)

Please note that my topic title includes the word "ideas" which means

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Something, such as a thought or conception

straight from dictionary.com

I would have to get a properly rebuilt 700r4 transmission with towing in mind. This is not a big deal. Slower smooth shifting is okay with me.

Would the sy/ty engine be able to tow? Remember I'm not hauling timber cross country on a 40 foot flat bed. More like half the towing capacity of my stock jimmy (like 3k lbs I think). From what everyone says, the transmission and possibly tcase are the towing bottlenecks besides king ice flash saying turbos are hot. I am fairly certain his post can be disregarded. Mr cpt says it is a combination engine/tranny. Is it a combination engine/tranny or is it a combination tranny/tranny?

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its not the gearing that makes the SyTy incapable of towing or off road use, its the way the engine and transmission work that make them incapable of these tasks

p.s. cpt, the whole flamebait thing: You said you want to watch me destroy my transfer case so you can laugh or "lol". If you get your kicks from others misfortunes then you should come visit Memorial Hospital with me when I bring the kids who have muscular dystrophy my Beagle Homer for them to play with. You might get your fill as there is plenty of misfortune there to go around.

[Captain Morgan]

Quote: Originally Posted by uhlhazard

I really feel like Captain Morgan's opinions are held to a higher standard than the rest of us. You should be called Captain Flamebait.

call me whatever you want, that will only shorten your time here. No, that is not a threat, but it seems you havent read any stickys, rules or the TOS when you signed up. Yes, this is a public forum, but there is a limit to how much free speech you have. As for my "opinion" being held to a higher standard, no, opinions are opinions, however my FACTS should be, you just choose to ignore the obvious cause you just want to do this reguardless if its good or bad, cheap or expensive, easy or hard.

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I realize you are an admin, I realize you have been here for 6 years and have 14K+ posts, it would be prudent for me to ASS U ME that you might have donated time/finances possibly the most to keep this excellent informational database online. For that you deserve props.

Here they are: Thanks CPT!

not really sure what any of that has to do with you being dead set on making a mistake, but ok thanks.

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NOW, for clarity. The majority of posts here contain usefull information.

I am here because I have done little research aka homework. This is why I posted. I have found it relatively difficult to find any concrete information in this needle in a haystack of google searches I have amassed.

I dont understand why you are having such a hard time, there should be tons of information out there.

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I have learned that the stock tranny seems to have a shift kit. Good, I don't want hard shifts. I have learned the awd xfercase is not for offroading. Good, I didn't want that. I don't necessarily plan on gutting a fully functional sy/ty.

Ok, first you totally contradicted yourself already. Are you talking about the SyTy's having a shift kit or your current trans? Technically neither do. SyTys do have a lot of Corvette parts in them, however the valvebody is completely unique to them. You dont want hard shifts you say, but that is exactly what you are going to get when you install a shift kit. They are engineered to provide firm, positive shifts and reduce slipping caused by lagging shifts which creates heat and causes parts to wear out quicker.

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The transfer case. From recent dealer experiences, my electronic transfer case works with the pcm or ecu or whatever they are currently calling the engine computer. This would most likely not work with the sy/ty ecu. I might have to get a manual shift transfer case. That might not require a computer to function. (ass u me)

manual t-cases have been used on SyTys in racing applications, so Im sure it will work here, however people have messed around with earlier electronic cases and I believe they have gotten them to work. For all I know, your '94 case could be the same and does not require a computer. Thats something you will have to figure out and wire up on your own.

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I would have to get a properly rebuilt 700r4 transmission with towing in mind. This is not a big deal. Slower smooth shifting is okay with me.

You seem to have a hard time grasping the concept of PERFORMANCE vs. TOWING/OFF ROAD.

You are going to have a hard time finding a way to build a transmission thats going to withstand the abuse of the engine on one end and the abuse of towing/off roading on the other end. You are never going to get a trans built to 100% specs for both areas. There will be some sacrafice, I just hope its not something critical or you will be rebuilding it over and over again.

If you do end up going on with this, just make sure they are building it for 500+lb ft of torque. Everyone rates transmissions based on how much HP they can hold, but that number is pointless when your torque is almost double what your HP is, not to mention putting that in a 4000lb truck with AWD/4x4. Torque is what kills these transmissions, not HP. Also, dont go below a 2100 stall converter or you will kill the performance aspect of the engine.

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Would the sy/ty engine be able to tow? Remember I'm not hauling timber cross country on a 40 foot flat bed. More like half the towing capacity of my stock jimmy (like 3k lbs I think). From what everyone says, the transmission and possibly tcase are the towing bottlenecks besides king ice flash saying turbos are hot. I am fairly certain his post can be disregarded. Mr cpt says it is a combination engine/tranny. Is it a combination engine/tranny or is it a combination tranny/tranny?

More like half the towing capacity of your Jimmy? Was that based off of your well justified calculations or is it just a guess? Seriously, towing anymore than 500lbs is just asking for trouble, even with a trans built for towing.

Why are you questioning me on if its engine/tranny or "tranny/tranny" Go read the sticker I posted above made by General Motors. It says "Towing can cause sever damage to engine and transmission."

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p.s. cpt, the whole flamebait thing: You said you want to watch me destroy my transfer case so you can laugh or "lol". If you get your kicks from others misfortunes then you should come visit Memorial Hospital with me when I bring the kids who have muscular dystrophy my Beagle Homer for them to play with. You might get your fill as there is plenty of misfortune there to go around.

Brilliant comparison. Yes, because watching some ignorant ass who doesnt seem to have a clue about how engines or transmissions work, break his truck is SO very much the same as a child with a disablity....NOT.

I dont know if you were trying to be funny or not, but you came up a little short there.

[Deeze49686]

this dude obviously has no idea how a turbo works...... i wanna se this cobbled idea of a truck try to tow a 2500 lb trailer up a hill with a 2100 stall, and absolutely no turbo boost...... it will be worse than a 2.2l .

this guy is absolutely stuck on a farfetched idea, so let him be.......

go buy the truck, rob the driveline, hack it all together, and come back here and post "what did i do wrong" threads........

[eutechnyx]

Yeah ill agree with that he must not realize how hot a turbo gets on its own and how heatsoaked it would be after towing ANYTHING and then when he cuts his truck off after all that he can kiss that turbo goodbye since we all know he hasnt even mentioned a turbo timer or anything for that matter,we can all just hope he wrecks the jimmy before any of this takes place and besides did he ever mention where he plans to find this sy/ty?

[neo71665]

Not to add any more BS to the thread but I knew I saw a 2nd gen with a sy/ty setup somewhere.
http://www.blazerforum.com/m_100637/tm.htm

[uhlhazard]

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he must not realize how hot a turbo gets on its own and how heatsoaked it would be after towing ANYTHING

I do not, that is why I am here asking. I assumed they would function in a similar fashion to a turbocharged diesel.

I don't even understand how a torque converter works including the differences in stall.

I guess I thought lets say a 2100 stall converter wouldn't really lock the transmission up to the engine until 2100rpm's.

What would be wrong leaving in my jimmy torque converter attached to the sy/ty engine? Please keep in mind that is essentially the only thing I want changed is the engine.

I would have to guess that if you could show the sy/ty engine on a graph, its power output would be basically similar to that of my stock engine until the turbo did it's magic? Would this explain why everyone says it is not a feasable project?

In such a case, that would be acceptable to me. I do not understand much about turbochargers, why would it overheat and if it did, is cooling an issue? Can you up the cooling capacity?

I have never worked on a car in my life besides holding the flashlight for someone else until I got my 87 blazer with a 2.8 that had a bad main bering. On my own and robbing dads tools swapped the engine out with one from a junkyard. I am pretty sure if I didn't have a bad oil pump I might have gotton more than 2k miles out of it. My only education is reading at places like this online and just doing the work.

I am an educated in the field of computers and I.T. in general and am trying to learn about cars. I guess I am simply frustrated by how everone seems so callous.

You guys take forgranted simple knowledge that I do not have. It is like when I tell a customer to "right click" and it frustrates me to no end because I have been doing that for the last 15 years with no thought of it and they don't even know what it is.

So please, bear with me I am a n00b in this field but am willing to learn with your help. I am just asking for a break that is all.

[po_boy93]

As a long time S10 enthusiast, researcher, historian, and owner of two Typhoons, along with 16 other S10 Trucks and Blazers (including a '94) in the last 15 years, I hope this is enough credit for you. EVERYTHING that Captain Morgan has stated to you is correct, and should be taken in to great consideration why this is not a good idea. The Captain has already stated everything I could've told you or suggested. I'm x2 on the motion it is not a good investment or idea, and a stock 4.3L build up or even a V8 swap would be far easier, affordable (install and long run maintnance) and more reliable for your needs. If you take a look over at syty.net you will understand why the words "jack stands" appears in every other post. Just trying to help you in a better direction. Good luck.

[uhlhazard]

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why the words "jack stands" appears in every other post

lol Cool man, glad to hear it. My main frustration is my lack of understanding of the system as a whole.