Anybody tried a velocity stack for their throttle body? There's a claim of around 5 to 7 rwhp when used!

 

I wouldn't waste your money if I were you. Save a few extra dollars for a ported throttle body if you want to modify it...or you could just take a dremel and do it yourself.

 

all i know is that the guys at thunder racing tested it themselves and back up those claims...

[shrug] who knows...

i'm still waiting for a dyno run of it

 

i think it works.you wont feel it.its also overpriced for a cheap piece of plastic.

 

Car to explain this "Velocity Stack" ? Where it goes, what the theory is behind it, etc. etc.

 

A piece that slides in the throttle body. Sounds believable but $50 for the little thing.

 

Wouldn't that make the throttle bore smaller? Which is better than a ported throttle body....

 

i beleive it ends before the narrowest part of the TB ...otherwise it would interfer with the blade.

it is more for smoothing out flow over the port holes that are inside the TB...

kindda like when they fill it in with epoxy on most perfessionally ported TBs

link to jegs

 

link to a good thread about it by tom @ tbyrne