What should I do to protect my new engine?

[RETed]

Originally Posted by 85rx-7gsl-se

The thing is with a FCD, once you reach the factory boost cut limit( I believe its 8 psi), the FCD just keeps telling the ECU that you only have 8psi of boost regardless of actual boost which mean its not compensating with more fuel and retarded timing.

Once the boost gets into +, the boost sensor has nothing to do with fuel delivery; it is all ignition timing retard.
Thus, FCD does not affect fuel delivery at all.

Max ignition timing is around 17 or 18 degrees total advance, so even with premium octane, running up to 15psi is no problem.


-Ted

[85rx-7gsl-se]

Originally Posted by RETed

Once the boost gets into +, the boost sensor has nothing to do with fuel delivery; it is all ignition timing retard.
Thus, FCD does not affect fuel delivery at all.

Max ignition timing is around 17 or 18 degrees total advance, so even with premium octane, running up to 15psi is no problem.


-Ted

My bad Ted. I never really messed with a FCD. Bought one through RB, then went Microtech instead so never used it.

[RETed]

Originally Posted by 85rx-7gsl-se

My bad Ted. I never really messed with a FCD. Bought one through RB, then went Microtech instead so never used it.

No problem.
It's a common misconception.
We figured it out when we bench tested the stock ECU.
We used to argue till we were blue in the face trying to convince people this was the case.
When the RTEK guys cracked the stock ECU code, they just confirmed what we had found years earlier.


-Ted