I'm very curious to see what it would do on your N/A 2.5 stroker compared to the stock manifold all other things being equal? any dyno plan soon?
Cheers

 

Updates?

Ya?

 

any better pictures of the velocity stacks? to make full use of them they should be looking similar to this. Put the ILP manifold on your race car and post the numbers!

http://i265.photobucket.com/albums/ii215/B...SI/SN850181.jpg

 

generally the only reason to do it like that is if you dont have enough room for the plenum

 

It also makes the stacks more efficient since they can pull air from below them and not just above creating a higher local pressure at the inlet.

 

there are a 100 sae papers about it. Its been shown to not be necessary. Turbo cars dont pull air anyway..

 

I'm pretty sure turbo motors do pull air since they are are not spooled 24/7 and the motor is an airpump plain and simple at all times.

 

In for updates.

 

at partial throttle there isnt positive pressure forcing air into the manifold you are right. noone cares about power there.

when in boost the engine dosnt suck its air in, its crammed in. Velocity stacks 2 inches off the floor of the manifold only serves to create more volume in a space where you would otherwise not be able to make a plenum big enough.

In the picture posted the opening of the stacks is way too close to the wall of the manifold. And if i recall that car didnt do anything that cant be done on a stock IM

 

I agree that posted image looks like a stock plenum space with velocity stacks blocking the flow of air, it would be nice if the IM actually had a little larger stacks, but I want to see data to backup that the manifold makes 1200 worth of power.