My Cutlass Supreme houses the 3100 engine.

ENGINES 3.1-litre "3100" V6
Type 60-degree OHV V6
Bore x Stroke 89.0 x 84.0 mm
(3.50 x 3.31")
Displacement 3137 cc (191 cu.in.)
Compression Ratio 9.6:1
Fuel, Recommended Regular Unleaded
Fuel Induction Sequential F.I.
Horsepower 160 hp @ 5200 rpm
Torque 185 lb.-ft. @ 4000 rpm

Someone told me I would need a T3 turbo 0.63/0.60 60-trim ... well, I wished someone could give me a reletive run down of the things I would need to achieve such a mass. I do want to push at least the max that the stock internals can take. People suggest that 8 spi is the highest that this motor can take. By what everyone says ... it seems thats what every motor takes (thats not builtup in anyway).

If something will help me achieve alittle higher of a boost tell me... i'm open to anything ... a motor swap isn't very interesting atm ... as i lack funds for a donor car (only way I'm gonna do the job)

So, if someone can seriously lay some hay on this question and point me in the right directions ... please do, I am seriously wanting a power addon. I'm getting all kinds of things replaced currently just ... I would like to get a few more horses out of a motor I believe can achieve more (obviouse that it can... with forced induction...)

250hp @ crank would be VERY nice thats like 220 ... 230ish at the wheels :-D and thats plenty of power until I do my 3800 s/c swap... just want to get a dish of both worlds! :-D

 

Sounds very thirdgen related. You would probably be much better off posting this on another site, something relative to oldsmobile. This one will get locked.

 

See this page.

https://www.thirdgen.org/techbb2/sho...r+remote+mount

It has some pictures of my 89 Turbo Cavalier with a 2.8 v6. The engine is stock and has 177k miles on it. I have run it up to 15psi when messing around with the wastegate setting, but I wouldn't recommend doing that for very long unless you have a tow truck waiting. I do drive it daily at 6psi, then use my homemade boost controller to run 10 psi when drag racing.

BTW, the amount of boost you can run depends a lot on your tuning. If you run 5 psi without enough fuel, it may only survive one boost run. However, the same engine my run all day with 12psi with proper air/fuel ratio and spark timing.

 

not sure how much it'll help but IIRC, they made that chassis with a turbo V6 in the Grand Prix around 91 or so. I forget if it was the 3.1 or 3.4 though.

 

Yeah.

 

and then:

So you what to push it to the max or more, but you’re not willing/able to replace the engine. Do you have another car and this one is disposable or something?

 

i was refering to the 3800 s/c swap which i didn't even mention sorry.

but, i guess i'm just looking for some quick answers.

and yes it was the 3.1 Litre engine ... which was in the Pontiac Grand Prix TGP...

i relise some of the things that will be required but i guess i'm just asking what i need to look out for....

i am in dire need of more power ... and just basic mods like exaust work can only go so far ... along with intake mods....

If all I need todo is get a better management for the fuel and spark timing ... and thats it, then great. But, I really wished someone would really put the smack down for me. Like I said I might be able to get an easy answer from you or just tell me to look elsewhere ... or on how things work :P anyway... thanks ...


Andrew

 

Not to be rude, but it seems to me as though you have very little understanding of turbocharging and have very little interest in doing research to educate yourself. We get a lot of these types asking turbo questions on this board, and it is hard to help someone who isn't willing to help themselves.

1) From a $$$ standpoint it makes absolutely no sense to turbocharge your current engine if in the end you plan to swap it for a SC 3.8. I would recommend first deciding which way you would like to go. Either save yor money and do the swap, or build your 3.1 turbo system with proper sized turbo to allow more boost as engine improvements/tuning allow. I think you could make a turbo 3.1v6 faster than the 3.8SC, and it would be different (much cooler IMO).

2) If you are serious about turbocharging, read the following books cover to cover:
'Turbochargers' by Hugh McInnes
'Maximum Boost' by Corky Bell

3) Feel free to ask questions that are more specific, once you have a basic understanding.

Finally, if you still really want a quick and easy turbo system to hold you over until you can drop in a SC 3.8, please take a close look at the link I posted above. That system cost me under $1000 and it is faster than most SC 3.8 Grand Prixs (albbeit my Cavvy also weighs a little less, but you get my point). It would also be easy to remove once your ready for the swap.

 

that’s basically the problem here… you’re not asking a real question unless you’re expecting one of us to build it for you.

Ditto on both sentiments. Although in a lot of circles the 60* V6’s are considered pieces of crap, they are actually very well designed engines and offer a VERY compact and light powerplant, which I think is worth tinkering with in the right application.

After saying for years that Corky Bell’s book is not a great source based a quick perusal I finally decided to sit down and read it cover to cover. I haven’t quite finished it yet, but I will slightly modify my previous statements. It does have a lot of interesting pictures and observations, but it is technically worthless. Almost everything said in chapter 3 (the how this works, how to size these things…) is either technically wrong, technically incomplete or has an error/typo. Even most of the graphs/charts have something wrong with them. I’m starting to understand how people are getting so confused about these things, especially considering the quality of the information available (don’t these things get tech editors to prevent publishing just plain wrong information?)

 

Ok, here is a question. If you had $2000 what would you do with it?

Swap to the 3800?

Turbo Charge a 3100 and upgrade the trans to the 3.4 one.

I need to know, if its waste my time researching. I wouldn't mind doing the turbo ... then i wouldn't mind doing the swap there is alot of aftermarket for that damn engine.

So, this question is the one I want to know now. I have a brief understanding on how a turbo works just the math of it is where I get confused.

 

Sell the Olds for $5000. Then with your $7000 buy a nice third gen IROC, Z28 or GTA.

Seriously, thats what I would do.

 

Sell the cutlass and use the $2050 to buy a 3rd gen to play with.

 

^^^ thats funny sell the Cutlass for $50 ... I'll never buy a camaro or whatever. they suck on handling... and its nothing but a big piece of **** to work on anyway.

i believe a 3800 s/c swap into a cutlass would do great. the swap alone puts the car in 14's ... few more mods 13s few more 12's ... from then on its harder then hell ...

just like the 75 Olds Cutlass thats got a 350 Rocket ... thats worth putting time into vs. a pos Camaro or something ... but thats just me.

but again ... put some originality in your life rather than smoking it away or blowing it on something that probably another 50,000 people own.

did you know that there are only 2 3800 s/c swapped Cutlass convertible cars in the US?

EDIT: Don't bother leaving messages reguarding any of the things I just said ... I really do not care I asked you a question on what you would do with the money. So... **** off!

 

This is an f-body board, not a cutlass board. Sometimes we've let things slide, since there are are a few non-f-body guys that have been very helpful sharing their experience here. Coming here to talk trash to folks nice enough to try and help isn't going to get you much help. You've managed to alienate many smart people who've been down this road before. If you want to talk about the specifics of turboing a Cutlass and trashing f-cars, you're free to do it on your Cutlass message boards, if they exist. As for f-bodies not handling well, you should make it out to a track day at your local road race facility and get a ride a long. I've yet to see a competitive cutlass at any road race events. Good luck if you choose to continue with your project.