I have a huge dilema with this:
I had a front facing plenum on my standard motor (GCG turbo, EMS ECU, fuel pump, injectors, cooler, etc) - and my motor went pooof - It could have been anything that caused the motor to go. The suspician is ringlands - Haven't had the head off - I tested the compression as follows:
Cylinder 1 - 127 PSI
Cylinder 2 - 55 PSI
Cylinder 3 - 150 PSI
Cylinder 4 - 40 PSI
Cylinder 5 - 50 PSI
Cylinder 6 - 50 PSI
(Cyl 1 is at the front of the car right ?)
This was a dry test.
Seems that what Sydneykid is saying 'might' have happened in my car - I'm pretty sure you can't adjust the fuel on individual cylinders with the EMS so this would not have been done.
I'm stuck with the front facing plenum at the moment and to revert back to the factory one, I would need to source one as my current one is a cut and shunt job. Then I would need to get the cooler pipework redone.
I'm getting the engine rebuilt with forged internals and plan to get 250-300 rwks out of it. I'm changing the EMS to a Power FC, changing the hi-flow injectors to 550 Sards -
What to do about the plenum ? Leave it and tune it rich ? Replace with factory or get a Trust/Greddy one ?
Which ever way I look - there is a limitation !
This time around I want to build/tune for reliability - So taking the most conservative approach is best for me.
What do you guys think ??