ISC on NA-T

[Enraged]

Just curious, when you do the NA-T conversion, do you use the turbo ISC valve with that little round oneway valve, or do you just use the stock NA ISC valve?

I'm trying to figure out if I can run without that oneway valve on my turbo car with a custom intake manifold.

 

[jdub]

You need the check valve to prevent a boost leak through the ISCV. The ISCVs are the same for both...the check valve in is a recessed area below it.

 

[Enraged]

after more searching, it seems that I can use a check valve and filter since I'll be running speed density with a maft pro. thanks!