[Buick] Custom inlet manifold VR

[commomad]

Hello Commodore Knowledge.

I am fitting an intercooler to my V6 and am having problems with reverse plenum It is a VR v6 with a side mount powerdyne CAPA kit, with a custom made inlet manifold to reverse intake. The manifold is just a standard vr with the top chopped off and a ecotec top welded to it. It runs the ecotec T/B which i have extened both sensor plugs for the throttle body.

At the moment it is running N/A so i can fan out the bugs.

So my problem is that the car will drive fine under acceleration but if you try to maintain a constant speed, the engine revs die and only come back on once more throttle is applied.

I have checked all wiring, replace TPS and idle step motor and many other things . The only thing that i can think of is the ecotec throttle body is causeing the drama.

Any suggestions welcome cause i am out of ideas

 

[rubaduckee]

have you checked for any vacuum leaks?

 

[commomad]

Yes all lines checked with vacum guage, and some replaced gonig 4 another test drive now.

 

[Immortality]

the best thing would be to hook up a laptop and datalog with software like EFIlive. software is free for trial purposes and a ALDL cable is fairly easy to make or you could possibly buy one from someone on the forum

 

[commomad]

the best thing would be to hook up a laptop and datalog with software like EFIlive. software is free for trial purposes and a ALDL cable is fairly easy to make or you could possibly buy one from someone on the forum

Thanks for the suggestions. I swapped TB with a mates old VS wagon and HEY PRESTO. i worked sweet. So put my TB on his car and it made it play up, soo stoked.

Must be a dodgey TB, now must source another TB.

 

[vc81]

Hello Commodore Knowledge.

I am fitting an intercooler to my V6 and am having problems with reverse plenum It is a VR v6 with a side mount powerdyne CAPA kit, with a custom made inlet manifold to reverse intake. The manifold is just a standard vr with the top chopped off and a ecotec top welded to it. It runs the ecotec T/B which i have extened both sensor plugs for the throttle body.

At the moment it is running N/A so i can fan out the bugs.

So my problem is that the car will drive fine under acceleration but if you try to maintain a constant speed, the engine revs die and only come back on once more throttle is applied.

I have checked all wiring, replace TPS and idle step motor and many other things . The only thing that i can think of is the ecotec throttle body is causeing the drama.

Any suggestions welcome cause i am out of ideas

Hey mate nice manifold. Any more close up pics or info on how you made it?

 

[commomad]

Manifold pics

Yeah mate plan to do a bit of a write up once i have cooler pipes done, Will post up heaps of pics and details.