noboostnogo

ok so right now i have a 350 with flat tops, a mild cam, some 64cc ported truck heads with bad flow and the stock tpi setup with a 52mm tb, shorty headers, 24# injectors, 3" borla exhaust, 3200 stall, 700r4 and 3.73 with some drag radials my best 1/4 time so far has abeen 14.3 wiith a 2.0 60ft and tranny not shifting to third.so i'm basically tired of going slow. i wanna go high 11s to low 12s

6 speed tranny is on the way, so the 700r4 will be gone, tpi setup is being replaced with a ported lt1 intake as we speak.
My car is a 89 trans am and i'm still rocking the MAF.

My first plan was to go with a single turbo @ 6-8 psi and keep the engine as it is right now. i had already done tons of research on how to boost it BUT i really do not feel confortable upgrading to SD because i have not yet found the right info to do it so i would still be using the MAF.

I recently thought about going with a nicely built 383 stroker with some heads that will handle the flow and 30# injectors with the LT1.

Ive done some math and both of them will put me within the same price range, i know tons of people on here have gone with 383s but not many turbo TPIs.

This is NOT my daily drive car its just my weekend car and the most octane i will use is 93. i want it to be reliable and fast.

What do you guys suggest??

Drumer919

iTrader: (2)

What is your price range?

noboostnogo

well i was thinking about staying around 2k but of course this is something that i will be spending money on for the next few months so it really wont matter, i just dont wanna have to spend over 4k and still go slow.

ZONES89RS

iTrader: (25)

Nitrous is one hell of a drug...

moge11

buy a 6.0L motor with injection and wiring harness. Do an intake and cam swap, buy the swap headers and mounts. You could do it all for less than $5000. and go 10's.....At least low 11's.

ZONES89RS

iTrader: (25)

Perma ban this dudes IP address please...

noboostnogo

ive also considered a 406! any thought on those?

bluebeast

iTrader: (1)

i would say build a nice stroker with some aftermarket heads and a good street strip cam...... a turbo will be more power of course but seeing you are running 14's a nice built stroker can get you anywhere from 10's to 12's if you do it right.... also a turbo and all that mess is tough to tune and keep tuned and it seems with FI cars they always need to be tended to..... a good old NA stroker wil be very reliable and you can always say you are doing it on motor alone..... and hell if you want a lil past that throw a lil 100shot of gas on it for extra fun

2002_z28_m6

iTrader: (10)

I would keep your 350 and run a set of vortec heads with the TPI base that they sell specifically for the vortecs. In an article that I just read in GMHTP they ran this combo with a mild cam. I dont know the specs but they ran some aftemarket runners and TB. Anyways it make around 430hp but made close to 500 ft lbs of torque. It was over 400ft lbs at 2K rpm. This is with STOCK Vortec heads. There is potential without spending a ton of money. I gave the magazine to my buddy with a tpi vette and he is going to copy the set up. There really is no need to go bigger cubes to make good power.

9000th01ss

iTrader: (10)

Thats a lot of money you're looking to spend.

I had an S10 with the same set up sort of, running 14.2
It had a 355, flat tops, those swirl port truck heads, 700R4, 3.73's.

I seen a magazine article where they took a flat top engine and put on vortec heads, comp 268XE cam, performer rpm airgap, and a 750 holley. It dyno'd 420hp.

So I ordered the parts, put them on, had .034 quench distance. I used a non airgap intake and 600 carb. First time out it ran 12.5 spinning the tires a lot.
My 700 was already built up, by me, and it had a stock converter.

I also took all the AC stuff out, the truck weighed 2850 LBS that night.

Just to give you some numbers.

moge11

I have this magazine. It is with the 210/220 .500/.510 comp cam. They are PORTED Vortects...EXTENSIVELY PORTED VORTECS!...NOT STOCK!
Kickass build nonetheless.

Drumer919

iTrader: (2)

What issue is this in? I'd like to read it.

AutoRoc

Going fast isn't cheap. 11's is enough to really strain the rest of the driveline with sticky tires on. It's hard to not say sell your parts that you hate and do an LSX swap. Even a 5.3 engine...Headers, mild camshaft, tune it...run it as is. That's the cheapest route with that platform it seems. Add a 100 shot on that if you get bored but it should be a very reliable piece. Doing a turbo setup for 11's I think is pointless. All of that money spent is wasted if 11-12's are the goal. It would be like wanting to go fishing on a pond but you go out and buy a cruise ship....a bit overkill... Goodluck!

Labor, install, wiring, tuning will be your budget items for an LSx build.

2002_z28_m6

iTrader: (10)

Honestly man it was a GM hightech performance and I gave it to my corvette buddy. I doubt I will get it back or that he even knows where it is. Let me see if I can find a link to it online. Here you go. If you read the update in the second link the camshaft they were sent was really messed up and it still made crazy #'s
http://www.gmhightechperformance.com...lock/index.htm
http://www.gmhightechperformance.com...new/index.html

noboostnogo

ok so is there any way to go fast with the 350 with the flat tops and this cam Duration @ .006 tappet lift 264/269 Gross valve lift .488/.495 with the 1.6 rocker arms its like ~510 Duration @ .050 212/218

what heads would you guys recommend?? i have the LT1 manifold

RAGENZ28

iTrader: (5)

AFR Heads.

noboostnogo

any specs on the head?? valve size?? cc?? bench numbers?? which one would you recommend?

noboostnogo

anything a little bit not as pricey??

My brother wants me to buy his edelbrock RPM heads 64cc less than 5k miles on them for 750, if i bring the cc down to 60 or 62 is that going to be a big diff. in performance?? hp wise??

noboostnogo

any thought on the RPM heads??

jareed02

iTrader: (3)

go with a big block!!