I have a 1986 Trans Am 305 with TPI fuel system. I have been wondering what i would need to fullyadd power without a new engine. I can to the conclusion about a supercharger. Is there anyway to supercharge a TPI engine with TPI system after. I have done nothing to the engine at all. I'm sure its completely stock. Now i don't want a superchargerthat sticks out the hood, i hate them because driving in the rain is impossible.

 

Do fish swim??

Yes you can. Do a search and read up on some of the threads around this message forum and you will find out more.

 

Sure you can, it looks like this:

 

This is what it looks like with the hood down:

 

look into ati prochargers, vortech, paxton superchargers they make systems for tpi.

i am trying to get some money for a ati procharger myself.

 

alright if i were to get a supercharger would i need to beef up like the transmition or anything in particular?

 

Ok i checked up on those supercharger manufacturers you gave me and i'm still wondering if The 88-92 kits will work in my 86. I mean i still have a TPI 305 Small Block. Whats really the difference? Or should i not even worry about it.

 

probably not, unless you have the serpentine belt setup. i think that was the difference that would separate 85-87 and 88-92.

but you could always convert to that too...

 

Yes you can supercharge a TPI setup. Here is an old pic of my setup on my daily driver:



Since that pic was taken I've done a few mods and the engine bay looks alot better. Vortech S-Trim V1 @ 6psi on a mostly stock L98 (only mods are intake and ignition) and stock drivetrain and brakes. Supercharger went on 41k miles ago and car is still running strong. Just remember to take good care of the engine (good gas, good oil, change often).

 

sorry, i was just answering "will the 88-92 package work on an 86 tpi", not if you can supercharge.

 

There were 2 different variations of TPI in our cars, the first was the Mass AirFlow MAF TPI (165 ECM) from 85-89, then came the Speed Density SD TPI (730 ECM) from 90-92. This applies to both the 305 TPI (LB9) and the 350 TPI (L98). I dont know for sure but if I had to guess I would say no they are not interchangeable between 85-89 and 90-92 because of tuning issues (not fitment). Maybe contact the manufacturer of the kit and ask them if it will work on your 86?

 

Ya, all you have to do is swap out your V-belts for a serpentine setup. This is a very easy swap and you can pull all the parts off a car at the junkyard.

 

Blown87,

What are you running with your set-up??

 

I have not run it at the track or on a dyno so I don't know any of the numbers. It may go to the strip later this year for a few runs.

 

It can and should be done..

1992 Procharged Z28

with a mostly stock block i got a 13.5@104mph at 5600ft.

SAE it comes out to a 12.4@ something... i defintetly recommend the ATI kit.

Trans will probabbly not like the boost though... My first two didn't Ended up with a pro-built.

Good luck

 

hey guys,newbie here to the whole forced induction thing. Is it possible to add a supercharger and keep my A/C? My friend tells me its impossible on the 3rd gens, but I seem to think it could be pulled off??? Am I wrong? Any help would be appreciated! Thanks fellas

Will

 

Man, your car is beautiful. What a sleeper. Hope mine will someday surprise as many as I am sure yours does

Will

 

It's a great thing . I just wouldn't get a vortech. For the price you pay what you get isn't the best. Now that mine as lots of time on it , I've had lots of issues. Like paying somebody it make a new braket and brace due to bending.

 

Is it possible to add a supercharger and keep my A/C?

Why wouldn't you be able to keep it?


My friend tells me its impossible on the 3rd gens....

Your friend doesn't know much.... If he doesn't know a simple thing as this, don't trust him on any other third gen issues. Come here and ask instead. We'll give you the straight scoop.

 

Excellent. Even on a serpentine setup??? Thanks guys

Will

 

....Even on a serpentine setup???

Actually, it has to be a serpentine setup because of Vortech's and ATI's design. You're lucky in this regard as you already have it. I wasn't so lucky. My '87 had v-belts and I had to convert before adding the D1SC kit.

Willie

 

ok, so here is my basic question. Future mods before this call for some headers, AFPR, port and polish the intake, scoggin dickey base, vortec heads.......... What type of supercharger after all these mods, given my power numbers now, would put me at about a nice 1:1 ratio, and however much torque comes along with it. thanks fellas

Will

 

Hey guys, today I got my "literature" I ordered from ATI....everything looks great and pretty straight-forward, just on the expensive side as I noticed. I only really have three questions.....1) First of all, car is an '89 IROC-Z 350 TPI.....do I have a serpentine setup? I know I only have one drive belt so I guess I do huh? 2) I live in CA where the smog ****** work the streets, so will I be O.K. with this thing? Like is this thing going to hurt my MAF with that hot air blowing through it? I know I would just have to re-postion it on the new tubing. 3) Where does the supercharger belt get connected to? Or does it just go onto the same belt that the other accesories drive off of? If that's the case I will just need a larger belt of course. Ok thanks for the help fellas....I hope I posted some useful questions that will help others too.

 

Oh, and what the hell is a "cog"? I keep reading this term.

 

Question 1. all Post 87 cars were switched to serpentine. ONE BELT. So you do have it

Question 2. You should be alright, but the visual is going to be tricky..... And superchargers blow cold(ish) air. Turbos use hot air. IE exhaust gases.

Hope that helped

Will

 

.... What type of supercharger after all these mods, given my power numbers now, would put me at about a nice 1:1 ratio....

Actually, you can attain one horsepower per cubic inch normally aspirated. A power adder will put you significantly over this.


....And superchargers blow cold(ish) air....

If this were only true, we wouldn't need intercoolers or water injection. Heat is a function of compressing air.

Willie

 

Yeah, that's what me question about the MAF was about and passing smog....other opinions? Thanks.