Mighty 6,
What do you mean engine surge, the rpm going up and down like moving the gas pedal, or the banging sound of turbo surge?
With the data logger,
what was the turbine back pressure?
what was the boost pressure?
what was the egt. temps?
what was the A/F ratio?
what was the engine RPM?
what was the turbo RPM?
There is not a better tool than a data recorder wish I had one!
Thanks, Harry
It was like a fuel surge. You could really see it on the data log. Makes us think that the exhaust is backing up into the motor. Pull boost out (back pressure) of it and the problem goes away. Runs fine on the chassis dyno for short burst.
19 psi of boost = 52 psi on the exhaust.
egt 1500+ @ turbo.
A/F not sure at his time.
6000-6500 rpms
We did not what to spend the cash for a Race Pak. A freind told us about RPM
Performance data loggers. They work great and they are half the price of a
Race Pak setup.
http://rpmperf.com/Money well worth spent!
