Our Intake Plenum... GTR

**malibusst** · 02-26-2009, 09:41 AM

well, ive been talking about it for a while now, so heres the Second version....

its a little bigger than the old one....

all contain velocity stacks with some " special " work to them and the runner tubes... TOP SECRET!!!!!!!

MIND YOU THESE PICTURES ARE OF THE MOLD, NOT THE ACTUAL MANIFOLD, THATS WHY IT LOOKS UBER ROUGH..... JUST THOUGHT ID SHOW....

and just for kicks.... another "fun" project!!!!(**** rotarys)

**RyanGTS-T** · 02-26-2009, 10:11 AM

Seems a little big....massive. But if it's gonna flow better than who cares.

How come you pointed it out towards the battery tray rather than direct it to the stock way down under?

**malibusst** · 02-26-2009, 10:22 AM

trying to promote air flow towards the runners. theres nothing wrong with the stock plenum design, but air goes in one way, then has to rotate towards each runner, i know it sounds stupid, but the easier you make the air path, the easier it is to make power.

and its not as big as you think...

Ve has a huge part to do with it, 2.6L motor X .75% VE X 1.91CFM EFF = 3.9XXX L needed for a plenum, im at about 4.01L. so pretty close...

added to that the runners, i tried to make them as long as possible, but that killed us a bit..

TM · 02-26-2009, 11:46 AM

So that's a mock up eh?

Is it just straight fab or did you used any flow programs?

The concept looks much better then the last intake plenum to be posted up....

**malibusst** · 02-26-2009, 01:41 PM

we used solid works to design the manifold, but used a Dynamics flow bench with a big hammer to get a good shape,,, 90% of our gains were from the runners, And NOT THE PLENUM DESIGN!!!!!!

**G.T.R** · 02-26-2009, 01:54 PM

Looking good, but ummmm, that intake may have some leaks rofl jk.

Looks good manny, If I have time tonight Ill pop by the shop and check it out in person.
Steve