ok so i have a 92 maro 350ci full bolt on's borla exhaust wth shorties 150 shot of nos msd edlebrock hiflow intake wth adj fuel reg. march pully kit smog pump delete its a solid foundation im about to get some cash coming my way here within the next year or so i want to build a kick *** 383 that will gt me into the 10 sec. range in the quarter. i am for sure going to buy a fully forged eagle rotating ***. i want afr heads but dont know wha size to get i am willing to upgrade my intake but love the look and originality of the tpi and would like to keep it. i will get a cam depending on the heads i get. any thoughts from someone that if had the cash and could redo their build or has a build already to get me to my goal would be great.

 

also i would like it to be able to run on pump gas no higher than 90 octane. has anyone heard of a modified tpi style intake running in the 10's before?

 

I haven't heard of one that wasn't on some sort of power adder.

A TPI on 10's.......i'm still shooting for 11's.

 

what size heads are you running viprklr?

 

I am in the same boat. Just popped the head gaskets on my stock head 92 camaro 350 so figured why not build one.

I am really considering a 383 too. IMO if you are keeping the stock TPI unit, I really think that may be a choke point to running 10's on an NA motor.

What I have done so far is a 58mm TB, matched siamese ported SLP runners to plenum and TPIS manifold. I would like to match these to an AFR 180cc head and possibly a LPE cam.


I believe it will generate great deals of torque down low but will run out of steam by 5500rpm. Maybe a high 11sec car? dunno. Keeping an NA car, gears are your friend. Match them to be in your sweet spot by the 1/4 mile.

Keeping everything stock on a 383, ive seen an aggregious amount of torque being made at ~2000rpm (that has got to be fun!) but slowing down a couple of thousand rpm later.

If you want to build solid 10sec, my opinion is to use a GT35r turbo and the ability for the ECU to read boost. Ive seen some great examples from 3rd gen owners out there and with the push from the import scene, the technology is abundant.

Im keeping mine NA but im knowing the limitation to my choice.

 

yeah i know a tpi wont get me to the 10's but i want to build my motor to where the only thing that is limiting me is the intake. i want my tpi to get as close as possible tho. im going to put some money in the block so someday when i go to a power adder i wouldnt have to touch the block. i am not sure about what size injectors 30lbs 32lbs? or heads 195 or 210. i have friends that run bigger heads than 195 but they arnt afr.

 

I would probably run the 195cc AFR's. I'm planning my 383 TPI build as well. Could anybody out there who has done one post up your modifications and your results? What does yours run in the 1/4 Viprklr

 

I have the AFR Eliminator 195's.

I haven't made it to the track with this build. The best laid plans.........

 

No way.
I have a serious 383 w/HSR (approx 500 )Hp in my Vette and I am only just hitting the 11's.Just installed 3.73's and 3K stall so should go quicker but not 10's without the bottle
Typical street Vettes with 400RWHP 383 engines run in the low 12's NA and mid 11's on the NOS
Check this out to see what it takes to make 500Hp on a 383 with EFI
http://www.compcams.com/Community/Ar...?ID=1737510521

 

Does anyone here have a 383 TPI in the 11's?

 

Put some numbers in this calculator ( bottom of page ) and see how much Hp you will need to run 10's

http://www.stealth316.com/2-calc-hp-et-mph.htm