Originally Posted by
Fatman489 So yea .. the bug has bitten .. and I read about the low port intake manifold swap but can't seem to find any solid information about keeping it emissions friendly .. here in NC we have the obd2 inspection crap so CEL is not acceptable. And also probably going to toss my ssac header on that I have sitting around. Then some more dress up parts lol .. also looking around through some friends to find a shop to give it a new coat of paint. But if anyone has any info on keeping the low port mani inspection passing please let me know! Seems like a solid upgrade for a great price lol
I have a 2000 SE and the same concern of yearly emissions testing, an OBD2 port style test.(No MIL, 3 of 4 SRT's complete)
I did the low port manifold swap, and to keep it compliant, I used the original RR ECU and throttle body.
This required a special made adapter to hang the RR TB on the low port manifold. I bought it from a Forum Member that had it custom made.
Also I had to fabricate an EGR tube to connect the RR EGR system to the low port EGR inlet.
Other items that need to be addressed:
Fabricate a throttle cable bracket or bracket mount.
Modify the injector harness to connect to the side feed injectors.
Modify a coolant tube to connect to the relocated water outlet on the intake.
Extend coolant temp sensor wiring.
Extend/relocate ECU engine ground.
Also relocate,mount, plumb EVAP purge, PCV, etc .
The closest thing to a "how to" would be Vadim's write up:http:
http://www.sr20-forum.com/naturally-aspirated-all-motor/70753-how-install-low-port-intake-manifold-rr.html
No doubt I am forgetting some of the details. When the car comes back from the body shop I will try to find time to take pictures and cobble up some better notes.