Fuel cut or detonation?
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Rotary Enthusiast
Joined: Apr 2001
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From: Mississauga
Fuel cut or detonation?
Im running an S5 TII engine with an 87TII ECU, no emissions, premix, stock ic mounted at the front(2.25"piping), 2.25"TID(K&n CAI), 2.5" crush bent exhaust no cats, 2.5"magnaflow straight thru...
My question for the experts is this:
I have a homemade fcd(not bench tested) and i have either detonated or hit fuel cut 3 times now.
It was twice in 4th and once in 5th at 6krpm and 9-10psi. Hesitated and exhaust note changes.
What psi does the 87 ecu cut fuel at?
I guess it could be a shitty fcd...
My question for the experts is this:
I have a homemade fcd(not bench tested) and i have either detonated or hit fuel cut 3 times now.
It was twice in 4th and once in 5th at 6krpm and 9-10psi. Hesitated and exhaust note changes.
What psi does the 87 ecu cut fuel at?
I guess it could be a shitty fcd...
SOLD THE RX-7!
Joined: Mar 2001
Posts: 7,451
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From: Vancouver, BC, Canada
you would notice fuel cut... the car will stop untill you take your foot off the gas pedal, the push it back down.
10psi will all stock fuel system is pushing it. might be detonation. get a bigger fuel pump and rewire it.
10psi will all stock fuel system is pushing it. might be detonation. get a bigger fuel pump and rewire it.
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