Re: new itb turbo setup build pics
 

Looking good Pieter.
I should really come check out your stuff one day.

Re: new itb turbo setup build pics
 

As way say in Holland;

ziet er goed uit :)


looking good

Re: new itb turbo setup build pics
 

hmm, not really digging the plenum, You'd think you would want the velocity stacks directly at the bottom of the plenum, so the transition would be smooth?

I'm just curious because I've noticed full-race is doing a similar design on their custom intake manifold with raised stacks inside the plenum.

http://www.full-race.com/prototype/i...00/s2000-4.jpg

Vs something a bit more common inside the plenum

http://www.cheesefrog.com/frog/cfintake_13.jpg

http://www.cheesefrog.com/frog/cfintake_10.jpg

Looks good though =)

Re: new itb turbo setup build pics
 

Looking good Pieter.
I'm coming by next week to see how it is and maybe come to the Dyno to :)
I'll give you a call before next weekend

Re: new itb turbo setup build pics
 

looks good, but i agree with jeff about the velocity stack sticking out interrupting the flow. also, by closing in itb's, you're really doing nothing more than converting them back to a regular intake mani :-\

Re: new itb turbo setup build pics
 

not really, when boosting, it allows each TB to get a more even flow off air,

rather than the runner closest to the single TB getting better flow than the last.

i belive some nissan bluebirds came like that...ITB w/ turbo.

Re: new itb turbo setup build pics
 

Actually, having the stacks sticking out into the plenum is a good thing. It allows the stacks to suck in air from a greater surrounding volume area (rather than just from the front). For best results full radius donut shaped stacks are required, but half radius stacks benefit from the same.

We also made a tapered shaped airbox to further enhance flow distribution between the different runners.

Regards! Dave (co-creator)

Re: new itb turbo setup build pics
 

what do u use for managment?

Re: new itb turbo setup build pics
 

if you look at the newer bmw motors it looks like they have ITB's with a plenum on the outside of em just like that.

Re: new itb turbo setup build pics
 

yeah, but under boost, the engine won't be sucking air in, the turbo will be forcing air in, therefore, under boost, it seems to me like the velocity stacks will actually be interrupting the flow. your point is valid for when the engine is in vacuum, but i don't think it really applies to when there's positive manifold pressure.