75mm too much??

95YellowGTbeasT

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#1

• Aug 31, 2004

• #1

Thinking about getting a 75mm tbody, i was wondering if it would be too much on my current setup?

Nick

 

Grn92LX

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#2

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You'll need to port match the inlet of the manifold to 75mm. If not, just use a 70mm. Is it "too much"? No. Will it make more than a 70mm? Yes, but nothing huge.

 

WhiteDevil

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#3

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Is the Elbow 70mm wide too? I was lookin at getting a 75mm myself but it seems like it would be a bitch to port that thing

 

95YellowGTbeasT

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#4

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i think 70mm is the opening on the elbow and the intake, someone correct me if im wrong.

Nick

 

Grn92LX

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#5

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What brand elbow? TFS elbow's are 75mm. Edelbrock intakes (performer, rpm and rpm2) are 70mm opening and will NEED porting to match 75mm TB.

 

Joes95GT

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#6

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I don't think it would be worth it to port the opening of the TB adapter on a 94/95 car. It would also be a pretty big PITA.

If you are staying with the SN-95 setup, and you have a 70mm TB adapter, go with a 70mm TB.

Joe

 

Grn92LX

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#7

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Your probably right, unless his adapter is 75mm like the TFS ones are.

 

WhiteDevil

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#8

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oh the TFS ones are 75mm? I have an edelbrock one, maybe ill swtich that with the T-body.

 

Grn92LX

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#9

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You'd still have to port the inlet on the manifold. I dont think it'll be a cost effective mod, unless you can easily sell your old crap. You NEED longtubes. You have a similar set up as my friend and he's making 323hp/346tq and thats with gay shortys.

 

95YellowGTbeasT

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#10

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70mm tb ordered

Nick

 

4Jenna

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#11

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A 70mm is good to 650rwhp

 

Grn92LX

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#12

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eades5.0 said:

A 70mm is good to 650rwhp

Click to expand...

But you'll make 655 with a 75mm

Not to agrue with ya eades, but there was a dude in this 94/95 section that gained 4hp OVER a 70mm TB on his bolt on car with stock heads cam, so saying a 70mm is good to 650hp isn't really correct. 70mm matches his inlet best and its fine. I'll be doing a 75mm on mine as recommended by ed curtis.

Mike

 

GTJake

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#13

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Mike...you should just not reply in these threads anymore. It useless....always turns into a pissing match.

Jake