Injector duty cycle
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11 Second Club
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Joined: Mar 2008
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From: Northwest AR
Injector duty cycle In the logs I'm doing I noticed my car is running high on duty cycle. Does anyone else think this seems abnomal for my mods considering I have the 98 model 28.8# injectors?
It is getting as bad as 93-95% DC at 6300rpm. Tune is for 13.2 a/f at the tailpipe.
On a different mail order tune (that felt just as strong WOT) it was only 75% DC but I have no idea what a/f was as this was on the street not dyno...not sure how EFI calculates DC.
I'm looking to put mostly stock 799 heads on but its looking to be out of the question since costs keep rising (gaskets, bolts, fluids, maching head surface and now injectors...)
Could the fuel pump be weak at WOT?
It is getting as bad as 93-95% DC at 6300rpm. Tune is for 13.2 a/f at the tailpipe.
On a different mail order tune (that felt just as strong WOT) it was only 75% DC but I have no idea what a/f was as this was on the street not dyno...not sure how EFI calculates DC.
I'm looking to put mostly stock 799 heads on but its looking to be out of the question since costs keep rising (gaskets, bolts, fluids, maching head surface and now injectors...)
Could the fuel pump be weak at WOT?
Thread Starter
11 Second Club
iTrader: (18)
Joined: Mar 2008
Posts: 8,358
Likes: 27
From: Northwest AR
well I know that I'm wondering why my car is maxing out on a weak setup when so many people seem to be running bigger cams and making more power on the same injectors
