What is the Difference in these 2 Throttle Bodies?
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From: Shelby Twp. Mich
What is the Difference in these 2 Throttle Bodies? Ok what is the Difference from a FAST LSX 90 mm TB and a TPIS 90mm tb?Which one is better with the LSX 90 MM intake?
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The TPIS is more of an oval opening (80mm x 90mm?) and is basically used with their own modified LS6 'wide mouth' intake (unless they also have a round one?) and the FAST is a regular round 90mm opening.
Quality between the two is subjective.
I personally would use the FAST with the FAST intake and the TPIS with the TPIS...not to sound obvious or anything.
Quality between the two is subjective.
I personally would use the FAST with the FAST intake and the TPIS with the TPIS...not to sound obvious or anything.
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From: MI
Originally Posted by Pro Mouse
Ok what is the Difference from a FAST LSX 90 mm TB and a TPIS 90mm tb?Which one is better with the LSX 90 MM intake?
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I went with the TPIS because it fit better than the FAST T/B, the FAST T/B doesn't match up to the FAST intake very good and the TPIS 90mm does. The TPIS 90mm is not oval it's round and is a great quality T/B and fitfits and looks great.
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From: MI
Originally Posted by LS1LT1
Ok, I wasn't sure if they made a round one as well...for the record they DO make an oval one too though. 
Yea I should of made that clear, TPIS didn't come out with the round one until FAST was having big problems with their 90mm T/B.
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From: MI
Originally Posted by Pro Mouse
Yeah,I had no Idea eitherSo the Problems Fast was having is fitment?
So the Problems Fast was having is fitment?
The problem they had in the begining was they whistled. LS1 Tech Stories
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We offer both the fast & tpis version of the 90mm tb. Do you guys want me to take a quick pic of the tpis tb?
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Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
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Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
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From: MI
Originally Posted by Pro Mouse
Mine was just installed no problems ,With the Fast 90 mm TB lining up with the Fast 90mm intake
It's about time they got it right could ya take a pic and post it for us?
