TB size for my car?

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11-29-2004, 05:20 PM

Fallstar01

4th Gear Member

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Join Date: Aug 2004

Location: Philadelphia, PA

Posts: 1,654

TB size for my car?

Alright, my mods are listed in my sig. I was 327rwhp before CAI, MAM, catback. I'm gonna guess that I'm up around 345-350rwhp now. I'm hoping to eventually get a little over 400. I'm bolting the TB on to the Saleen Plenum (which I'll open up if it causes restriction.) Does anyone really know which would be better for my application? I dont think I'll ever see more than 430rwhp. If I do, then I think I can afford to go out and buy another TB (if neccessary). But would I be best with a 70mm (accufab) or 75mm for now? The price difference isn't an issue.
Thanks,
Fallstar

11-29-2004, 05:21 PM

UT04GT

3rd Gear Member

Join Date: Mar 2004

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Posts: 527

RE: TB size for my car?

for a s/c engine I'd say 75

11-29-2004, 05:25 PM

Birdieman4

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Join Date: Oct 2003

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Posts: 3,020

RE: TB size for my car?

Quote:

With that series 4 on you car, you'll need the 75mm TB. The 70mm works well on n/a cars, but with your blower the 70mm becomes a restriction in you airflow. the 75 is perfect. By the way, on the S281E they use a 75mm, which makes my point for me. With your blower, do not go 70mm.