Fuel pressure question
I race sailboats
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Fuel pressure question
So I just installed a fuel pressure gauge and upped the fuel pressure to help reduce the knock issue I've had for a while now. Base pressure was 50psi, and I'm currently at 67 with no bogging issues at all through the rev range. But, I still have knock at partial throttle in 3rd, 4th, and 5th. I was wondering how high some of you guys have gone on your set ups, and how much higher can I push the pressure?
Setpup is a 98+ B18C, AEM CAI, Apex'i N1, stock ECU.
Setpup is a 98+ B18C, AEM CAI, Apex'i N1, stock ECU.
Last edited by omgwtfbbq!; 05-08-2009 at 07:33 PM.
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I don't know much about what you're trying to achieve but with a stock motor an 93 octane fuel, you shouldn't be knocking at all, especially at 50-55psi. I would try either some bigger injectors or send out the ones you have to get cleaned and flow tested.
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Upping your fuel pressure is not necessarily going to help with knock/pinging.
You should be making sure your distributor (ignition) timing is not advanced.
You should be making sure your distributor (ignition) timing is not advanced.
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Exactly what he said. How do you know you're "knocking". You shouldn't be knocking with the setup you listed, ever
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I'm running 93, I have the timing set to 14 degrees. As far as the knock is concerned I've had two different performance shop owners diagnose the problem with the same result. My injectors may be the issue, I've never had them cleaned or flow tested, are there any recommended places to which I could send them?
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I'm running 93, I have the timing set to 14 degrees. As far as the knock is concerned I've had two different performance shop owners diagnose the problem with the same result. My injectors may be the issue, I've never had them cleaned or flow tested, are there any recommended places to which I could send them?
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For more information visit http://www.Phearable.net or call 1-888-236-9831
Authorized Dealer & Tuner for: Hondata, eCtune, Neptune, AEM, Crome, Precision Turbo, Omni Power, Walbro, Innovate & more. Dyno Tuning Services, Ecu Chipping, Chipped Ecus, Conversion Harnesses, Widebands, Fuel Injectors, Fuel Pumps, Map Sensors & more.
For more information visit http://www.Phearable.net or call 1-888-236-9831
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Im sure its stock, its also the correct one for the engine. Its rather hard to find a Tuner such as Alpha or yourself John, the closest I could get to conveniently would be Jestr, and hes only in Orlando at random intervals.
