today i was racing a friend on the street and i am slamming through the gears then suddenly in 3rd around 4-5,000rpm the cars rpms don't want to go higher and i get a bumping feel in the pedals and a light knocking in the motor. the car starts fine during normal driving and boosts fine when i need the power so its either the tranny or this famous rear rotary fuel cut-off i've heard so much about. the car is a 1991 turbo with HKS filter and the exhaust is a 2 1/2 in RB down pipe, car sound cat with 2 1/4 piping that leads to a tanabe muffler. i know how to correct fuel cut off i just want to know if thats what i am experiencing. thanks

 

almost forgot to add that i replaced the oem injectors with some reman ones and i am also using a 255 lph fuel pump

 

doesn't sound like fuel cutoff b/c that feels like hitting a brick wall so to speak. but itdoes sound weird.

 

I bet your **** is just running lean, get your a/f's checked.

 

well i dont thinks it running lean because wont the 255lph fuel pump be enought to supple fuel to the motor and when it happened the damn car wouldn't go any faster.

 

fuel pump doesnt mean **** when the Fuel pressure is the same, and on stock injectors....