Rb20 With Rb26 Intake *aac Valve Setup Help Needed**

[migs]

hi

im in the process of fabricating an rb26 intake manifold to work on my rb20

in not using the 6 throttle setup, im welding the Rb26 manifold to the rb20 cut runners

and using single throttle up front.

My only problem is that i need to know how to set up the AAC valve?

any info will be very good thanks

[boostn32]

Just use the stop screw to set idle, i have the same but use the 6 tb's can be a pig but thats the nature of the beast.

[migs]

OK so i dont need the aac valve then ?

[rob82]

OK so i dont need the aac valve then ?

You only really need it if you want a cold idle up - or to stabalise idle with AC or power steering request. It obviously depends upon your ecu tho.

That manifold is a waste of time on an RB20 in allmost all applications.

[migs]

What about the IACV-Air Regulator (the one highlighted)

[Kaido_RR]

just setup the AAC valve the same as the rb20. the gtr plenum has like 3 air outlets at the rear

Edited July 13, 2010 by Kaido_RR

[migs]

well everything is free

the parts, the labour so its just a fun project

y you say its a waist of time ? i cant find any after market plenum where i live in the Caribbean

[Kaido_RR]

What about the IACV-Air Regulator (the one highlighted)

connect that to one of the rear outlets at the bottom of the gtr plenum (there should be 2 or 3). if you need photos let me know

[migs]

yes i need photos please

[rob82]

well everything is free

the parts, the labour so its just a fun project

y you say its a waist of time ? i cant find any after market plenum where i live in the Caribbean

You will loose runner length with the rb26 manifold. This means you will loose horsepower throughout the entire rev range until about 7500rpm where it may make more power if the valvetrain and turbo are up to the job.

[migs]

how much power do you really use when you do this ?

[migs]

how much power do you really lose when doing this ? because we need the space on the next side to run an after market exhaust manifold

[migs]

[migs]

the upgrade is complete and i used the rb26 AAC-valve setup

http://www.skylinesaustralia.com/forums/Rb...b2-t342017.html