347 into 94 gt

[stevinwayne]

I KNOW I KNOW the subject is beat to death but i just finished the short block waiting to put the h/c/i on and dropping it in. i needed some advice on what i should do as far as: how large of a throttle body, MAF, injectors? should i switch to the a9l computer? just the little things like that. someone with experience please.

here is what i got so far. forged bottom end, 2.02/1.60 ported heads, edelbrock rpm II intake, and i'm still undecided on which cam.

any information will be appreciated

 

[Joes95GT]

The cam depends on a lot. Gear ratio, weight, goals, heads, manifold, how high you want to spin the engine, etc.

MAF = Pro-M 80. Don't waste your money on the 75.
Injectors = 30 lb/hr minimum.
Throttle body = Switch to a fox setup and use a 90mm Accufab.

Joe

 

[jetuomi]

hey Joe we're gonna run into each other a lot about the t-body's eh?

I'd say at this point go custom cam, they can line up your valve events better than an off the shelf cam...

ACTUALLY, on the subject of t-body, who's done the 90mm conversion on an SN95 car?? what was involved? did you manage to keep cruise control?
I might make this a new topic..

OH YEAH, I would NEVER switch to an A9* PCM, just get a Tweecer and tune your stock PCM, you have better tuneability, and there's power to be had out of our stock settings..

 

[stevinwayne]

i've pretty much decided on a custom cam. i'm going with 3.55s or 3.73s still want it streetable, well mainly freewayable. sounds like i was dead on with the injectors and MAF... still questioning the t-body.

 

[Joes95GT]

hey Joe we're gonna run into each other a lot about the t-body's eh?

This should answer your question....LOL

still questioning the t-body.

Joe

 

[stevinwayne]

OH YEAH, I would NEVER switch to an A9* PCM, just get a Tweecer and tune your stock PCM, you have better tuneability, and there's power to be had out of our stock settings..

tweecer? is it really worth the money? is this something an average joe can use or should you leave it to the pros?

 

[jruppert]

there is a learning curve with tweecer. you play around with it you will learn to do quite a bit though. also, i am planning on doing this swap. i am using a trick flow stage 2 cam with my 347 and am also thinking about going custom.

 

[67stang390]

See my sig, seems to work pretty well. Go custom cam, get a tweecer.

 

[Grn92LX]

Throttle body = Switch to a fox setup and use a 90mm Accufab.

Joe

Thats too big for his car unless he has an 8 second race car. He needs a 65mm tb to keep velocity That was sarcasm if you didn't catch it! I would use the 75mm race TB which is a 90mm opening and 75mm at the blade to it'll match an intake with a 75mm opening. The 90mm should work good if the inlet is opened up for it. I'd use jay allen www.camshaftinnovations.com for a cam. Your rpm2 intake has a 70mm opening so anything bigger NEEDS to be opened up with a dremel. 75mm should be fine.