KA-T question

[louisdaboois]

Kind of a newbie question, but have to ask. I recently boosted my KA. Ran strong for about a week then messed up a few pistons and a rod... But now in the process of rebuilding. I took apart the motor and I realized that the KA has alot of random emissions crap all over it.

Anyway... On the lower intake manifold, I noticed a long pipe that goes to a sensor then T's off to another sensor to the back of the collector. Previously there was a goose-neck on the intake pipe that has a rubber hose to the long pipe on the collector.... Now that i have intercooler piping running to the throttle body, I have no goose neck to attach a rubber hose to this long pipe.... My question is does it need to have some kind of a vacuum source from the intercooler piping or can i just put a small breather filter on the end of it?

[rogoman]

If I'm not mistaken, that hose needs a vacuum source because the other end connects to the IACV system.

[louisdaboois]

yeah, it goes to the IACV. Just wondering if the vacuum source could be from anywhere such as using a T fitting from the brake booster.

[S13FX]

YES SIR.

So whats your setup look like?

What are you running for tuning?

[louisdaboois]

well... I'm using an SR T25. SSA fmic w/ custom piping. hks ssqv bov. z32 mafs. Converted to top mount fuel rail with 550cc RC injectors. Megasquirt fms. lc-1 wideband controller. and thats about it on the turbo setup.

[UncleBen]

That's almost identical to my best friends setup, he is just running 370's in the stock rail though. Its strong, reliable, and quick enough that it's been fun for a few months. time for more though, according to him. I dont know if the 145k mile KA will take much more hahaha.

I'm running an RB stock turbo on a JGS mani, it's definately alot of fun.

[louisdaboois]

haha aw man. I bet that RB is fun.