FAST 78mm better that a ported OEM LS1/LS6 TB?
06-22-2006, 07:21 PM
#2
I personially feel it is better, but 200+ dollars better? No.
You would need a epoxied highly ported stocker to compete, and I still feel with a upgraded H/C car the fast would win in overall power.
Just a bolton car would probally be a waste.
I have only tried this on one car and the Fast 78 picked up a avarage of 3.8HP over a Bo white ported stocker with a 234/238 598/602 lift cam only 6 speed and a peak of 4.x cant remember exactly but is was mid 4's like 4.4 or 4.5 peak for peak.
This was after adjusting the A/F again on the dyno even though it didn't change much.
Overall the stocker picked up 6 and the Fast picked up just over 10.
You would need a epoxied highly ported stocker to compete, and I still feel with a upgraded H/C car the fast would win in overall power.
Just a bolton car would probally be a waste.
I have only tried this on one car and the Fast 78 picked up a avarage of 3.8HP over a Bo white ported stocker with a 234/238 598/602 lift cam only 6 speed and a peak of 4.x cant remember exactly but is was mid 4's like 4.4 or 4.5 peak for peak.
This was after adjusting the A/F again on the dyno even though it didn't change much.
Overall the stocker picked up 6 and the Fast picked up just over 10.
06-22-2006, 07:27 PM
#3
Other than being pretty and billet. I wouldnt even think that the part that you have to epoxy on a stocker would make a difference if it was not even present like in the FAST TB's. I would personally stick with a port matched 78 stocker to your manifold. That is what I have. 
06-22-2006, 11:34 PM
#4
Originally Posted by orangeapeel
Other than being pretty and billet. I wouldnt even think that the part that you have to epoxy on a stocker would make a difference if it was not even present like in the FAST TB's. I would personally stick with a port matched 78 stocker to your manifold. That is what I have.
I agree with sticking to the stocker.
For the coin it isn't worth it.
06-25-2006, 09:41 PM
#5
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All of the dyno testing I have done its almost not measureable between a pro done TB to a pro done epoxied TB. Which is why I never epoxied any of mine for anyone.
