Hey everyone,
I'm currently in the process of tuning my car and am having trouble getting past 5500rpm. Or to be a little more precise, it won't go past 5500rpm.
Mod list:
Rb25det running on rb20 harness
Greddy Intake manifold
Q45 throttle body + rb25 tps
Greddy top feed 10.5mm fuel rail
GTR injectors with resistor pack
HKS 2535 Turbo (10psi internal wastegate)
Turbo back 3 inch exhaust
FMIC
Greddy Emanage Ultimate
Nimso AFPR
Sard r2d2 atmospheric bov
Bee-r rev limiter
So in any gear, any throttle position as soon as I hit 5500rpm, the car hits what feels like an ignition cut. (Feels like the factory speed limiter.) Its runs flawlessly before it reaches that figure. According to the logger, the ignition isn't breaking up and the air fuel ratio is fine.
Its not a boost leak, nor a coilpack problem, the maf seems fine its reading up to 5 volts so I don't see anything out of the ordinary there.
The guy that is tuning my car has a lot of experience with the emanage ultimate, he went on various courses to learn how to tune it so I think he is not at fault.
Checked for codes before and pulled up a 55, no malfunction.
If anyone has any ideas what could be going on I'd appriciate your input.
Thanks in advance,
Jay