Hks Fuel Cut Defenser Problems

suprahero

naughty by nature
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Aug 26, 2005
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I Have A '91 Turbo Supra With A Safcii. I Just Bought A Hks Fcd So I Could Raise My Boost Level A Little. I Was Running 10 Pounds. I Wanted To Put It Up To 12 Or 13. We Dyno'd It At 250.67 Rwhp Before We Up'd The Boost. After We Turned It Up I Started Hitting Fuel Cut Something Awful. I Kept Getting 175 Rwhp. We Adjusted It The Hks Fcd Every Direction And It Never Helped. Someone There At Autolabz Said That He Was Told You Cant Have The Safcii And The Fcd Because They Work Against Each Other. Does Anyone Have Any Suggestions Or Answers? Thanks Alot In Advance.
 

GrimJack

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Dec 31, 1969
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AND we don't like the FCD much... the fuel cut is there for a reason, removing it makes it easy to blow up your engine.

There are better ways to get around fuel cut. Do some searching around the Lexus AFM / 550cc injectors or the MAFT route, two good options that give you the same result - higher fuel cut, but without eliminating it entirely.