347 into 94 gt

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stevinwayne

New Member

Sep 5, 2004

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Nov 9, 2004

#1

• Nov 9, 2004

• #1

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

New Member

Jan 23, 2003

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Delaware

Nov 9, 2004

#2

• Nov 9, 2004

• #2

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

 

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jetuomi

Founding Member

Jan 30, 2002

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Toronto, ON

Nov 9, 2004

#3

• Nov 9, 2004

• #3

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..

 

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stevinwayne

New Member

Sep 5, 2004

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Nov 9, 2004

#4

• Nov 9, 2004

• #4

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

New Member

Jan 23, 2003

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Delaware

Nov 9, 2004

#5

• Nov 9, 2004

• #5

jetuomi said:

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

Click to expand...

This should answer your question....LOL

stevinwayne said:

still questioning the t-body.

Click to expand...

Joe

 

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stevinwayne

New Member

Sep 5, 2004

78

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0

Nov 9, 2004

#6

• Nov 9, 2004

• #6

jetuomi said:

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..

Click to expand...

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

 

jruppert

Founding Member

Oct 20, 2001

294

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Michigan

Dec 8, 2004

#7

• Dec 8, 2004

• #7

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.

 

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67stang390

New Member

May 29, 2003

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Seattle, WA(home) ASU(college)

Dec 8, 2004

#8

• Dec 8, 2004

• #8

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

 

Grn92LX

Fidanza Man!

Founding Member

Jan 14, 2001

6,819

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129

New York

Dec 8, 2004

#9

• Dec 8, 2004

• #9

Joes95GT said:

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

Joe

Click to expand...

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.