power dropoff before redline?
#1
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power dropoff before redline?
im noticing that around 6800-7000rpm im getting a power dropoff. is there some sort of rev limiter or fuel cutoff in my car causing this? any ideas?
car:
'90 GXL
k&n filter + air scoop shooting air into stock airbox
headers
no cats
cherry bombs
switch to disable fuel pressure regulator
this has been happening since i got the car
car:
'90 GXL
k&n filter + air scoop shooting air into stock airbox
headers
no cats
cherry bombs
switch to disable fuel pressure regulator
this has been happening since i got the car
#3
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the engine pulls strong up until then, and i recently had my ports cleaned. also, with the fuel pressure regulator disabled, im getting the max fuel pressure so i should be getting all the fuel i need.
thanks for the thoughts on it though.
thanks for the thoughts on it though.
#5
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basically the system is prevented from shunting fuel back to the tank now, so its pushing the max pressure at the flick of a switch. i believe for a 90n/a its around 33psi. could be wrong though.
still looking for help with the ore-redline power loss....
still looking for help with the ore-redline power loss....
#6
SOLD THE RX-7!
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umm where is the switch?... are you cutting off the vac to the fpr? or cuting off the return line so 100% pressure goes to the injectors? I really hope your not cutting off the return line, but I doubt it would run that way anyways as you'd have about 90psi
#7
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the mod was done by a friend of mine. its set up with solenoid so i can flip a switch in the car while im driving to increae the pressure. i know im not running 90 psi though.... only about 30-35 or so.
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