Went to get tuned today
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Originally Posted by John_Z,Sep 22 2007, 06:23 PM
The easiest way to check for fuel pressure and to set it is by using a fuel rail tapped with a pressure gauge. I have one for sale if you are interested.
Mine is set at 49psi at idle with the vacuum hose off the fpr.
Mine is set at 49psi at idle with the vacuum hose off the fpr.
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Originally Posted by John_Z,Sep 22 2007, 06:20 PM
These are not necessary for your setup. The stock fuel rail will support more hp than your blower can puff out. Injector drivers are typically used with 1000cc and larger injectors. Again not needed for your setup. If you're shooting for 10 or 10.5 psi the stock map sensor works fine. Want to go higher than 10.5psi? Save yourself a few bucks and get the GM 3 bar map sensor.
A band aid for your situation would be to run higher fuel pressue via an AEM adj FPR, but it's not recommended.
Do it right. Get some 750cc injectors, tighten that belt, and rev her up past 9k.
A band aid for your situation would be to run higher fuel pressue via an AEM adj FPR, but it's not recommended.
Do it right. Get some 750cc injectors, tighten that belt, and rev her up past 9k.
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From: Phillips Ranch 909!
Hey Jesus, I remember when your car was tuned last time at church and I also remember that your FPR was cranked all they way down and pretty much maxed out. IMO you definitely need larger injectors and to lower that fuel pressure from where it's at.
Thinking about it I think that high fuel pressure was the culprit of your engine blowing. I think that since you were on it on the fwy for an extended amount of time that you couldnt sustain that super high fuel pressure it leaned and went boom.
Get injectors at a minimum and then maybe get yourself an AEM adjustable FPR.
Good luck bro.
Thinking about it I think that high fuel pressure was the culprit of your engine blowing. I think that since you were on it on the fwy for an extended amount of time that you couldnt sustain that super high fuel pressure it leaned and went boom.
Get injectors at a minimum and then maybe get yourself an AEM adjustable FPR.
Good luck bro.
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From: tampa florida
750 injectors and pull fuel pump to check the screen for blockage!
the fuel rail with gauge is nice - no guessing on pressure.
what were you intake temps! - that will really effect you hp numbers!
replace belt! maybe glazed and even if it were tight it might slip!
just did a turbo car with 2 mil head gasket on 7lbs - stock internals- 750 rc injectors, 255hp fuel pump - gm map - 345hp - 301 tq! - high boost 20lbs coming thursday!
the fuel rail with gauge is nice - no guessing on pressure.
what were you intake temps! - that will really effect you hp numbers!
replace belt! maybe glazed and even if it were tight it might slip!
just did a turbo car with 2 mil head gasket on 7lbs - stock internals- 750 rc injectors, 255hp fuel pump - gm map - 345hp - 301 tq! - high boost 20lbs coming thursday!
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i was tuned on a dyno dynamics, supposedly they are the lowest reading dynos. I will be getting 750 this week, an aem fpr and i will try to get the fuel rail with the gauge from john to see if it may be the pump. hopefully i can get it tuned this coming weekend.