NotoriousREV

OK, I know the stock answers I'm going to get, but I just want a little advice on how to do this the dangerous way

I had a Turbosmart MBC fitted at the weekend which was set originally to boost to 12 psi (a little above stock). The boost solenoid was bypassed. Today though, obviously the weather had changed and I was hitting boost cut (14.5-ish psi) in 4th and 5th. It just so happens that I also have a Dawes FCD in my possesion and would like to fit this to cure the "problem".

My aim is to run 1 bar boost held without hitting fuel cut.

I know if I go cranking the boost right up, I'm going to run into problems, but surely running 1 bar isn't going to harm anything as long as I take my time to set the FCD up correctly?

Car details: MY93 WRX with Scoobysport system and HKS induction.

My other question is: Do I tee into the line between the MAP sensor and the cylinder thing above the boost solenoid, or between the cylinder thing above the solenoid and the manifold?

Cheers.

[Edited by NotoriousREV - 5/15/2003 7:46:40 PM]

john banks

1. Suggest strongly a knocklink. Some may run 1 bar doesn't mean yours won't without detting.

2. Don't know exactly the position of the MAP sensor on yours, but I think an electronic FCD is more accurate and will give you a new fuel cut which you can predict unlike a pneumatic device.

tweenierob

1.std boost should be about 11/12psi anyway..
2. fit the FCD between the manifold and the Pressure exchange solenoid (cylinder thingy)
3. make sure you dont get greedy with the boost.
4. i have a 93WRX and on my own car 1bar was fine..
5. get a knocklink
6. use octane booster
7. run 1.2 bar

Rob

NotoriousREV

Thanks to both of you for the replies!

I'm happy to move to 1 bar with only a boost guage, but beyond that I need more instrumentation, I think

I'm at WL5 on sunday, should give me a nice baseline run before the Walboro/bigger injectors/FMIC/remap go on