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#1
04-20-2005, 05:00 PM
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When is to much Boost?
I just got my 290lph fuel pump. When will the motor start to run lean? I know a lot of people say on stock fuel system stay below 14psi. I just upgraded the fuel pump can i run 14.5 and be safe? Or is this still to lean with stock injectors.
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92 Stealth R/T TT CURRENT MODS: K&N FIPK Spec Stage 3 Clutch 6 Puck HKS Turbo Timer Type-1 3 Inch Polished Y-Pipe Greddy Profec B Spec II @ 12.0psi Greddy Type S BOV Greddy Catch Can Borla Exhaust 3 Inch SS Down Pipe with Race Pipe 3SX Crank Pulley Accel 8.0mm Wires Gen 3 Lifters High Flow 290lph Fuel Pump (Supra Pump) Plugs Gapped at .030 Iridium IK20's 550cc RC Engineering Apexi S-AFC II (WILL BE REMOVED NOT YET) 2 G-16 Turbos AEM EMS FUTURE MODS: Custom FMIC 
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#3
04-20-2005, 07:22 PM
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too much boost is when you start knocking....lol
i know that my buddy runs 17 psi on this talon with an upgraded fuel pump, but he also has water injection on that car. i'd say, to be on the safe side, run below 16psi. If your car starts to knock at WOT, back it off a bit.
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Tyler L Thank god winter is over.... time to hit the track!!! Why do some people hate me? I'm not bias... I just hate rice... (Except chicken fried rice that is....yum yum)
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#4
04-20-2005, 07:25 PM
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Re: When is to much Boost?
always always always run 14.5 psi or lower on stock turbos. Yes, many people will say you can run higher, but the fact of the matter is it's not good for the health of your turbos, and it's commonly known to show that most of the time anything over 15psi on stock turbos start pushing hot air.
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'92 3000GT VR4 Current Mods: K&N FIPK RPS Streetmax clutch Rebuilt tranny Free Boost Mod Maximal Performance Solid Motor Mounts Pictures and Videos of my car Got a question about your auto insurance? I'm an insurance agent, ask away.
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#5
04-20-2005, 08:07 PM
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Re: When is to much Boost?
Is there any PC dataloging software? I have a laptop so an in car setup would be best. My dad has a palm but its not always available and I hate using palms.
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1995 3000GT VR-4 Installed: ESP front precat eliminating downpipe, test pipe, RF-1008 K&N, Dejon tool Y pipe, 1G DSM BOV, MSD wires, Guted rear pre cat, ISSPRO EV Marine boost gauge, IPO MBC, EGR blockoffs, Palm m515 dataloger setup, NGK iridium plugs, SPEC stage II clutch 500ft/lb, 5300k HID plug and play setup. Soon:Topline Engineering ground wires.
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#6
04-20-2005, 08:14 PM
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Re: Re: When is to much Boost?
Quote:
rated at #1 by BMW awsome company, but kinna expensive...
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Tyler L Thank god winter is over.... time to hit the track!!! Why do some people hate me? I'm not bias... I just hate rice... (Except chicken fried rice that is....yum yum)
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#7
04-20-2005, 08:32 PM
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Re: Re: When is to much Boost?
Quote:
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#8
04-20-2005, 08:36 PM
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Re: When is to much Boost?
you dont have big enough injectors or turbos for anything over 15psi.
As well I wouldn't do it without a datalogger and some A/F control
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96 3000gt vr4 -K&N FIPK -Proboost mbc -Cusco front + rear strut bars -Greddy type-s -ATR downpipe -no cats -15Gs, 3sx aluminum pulley, FMIC, SAFC, walboro pump, EVO 560ccs, and Meth Injection Kit all waiting to go in shortly. Your 1996 Mitsubishi 3000GT VR-4 is the 92nd out of the 315 that were made that year. Only 21 of which are exactly identical.
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