5-6 psi

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Old Aug 27, 2004 | 10:39 PM
  #1  
chattownrexer's Avatar
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Default 5-6 psi

Listen I wanna run 5-6psi on a completely stock b16. I know thats not much but I got all the stuff, and I was wondering if that would be good for along while on the motor? Its my everyday driver and Im gonna need it to last till I can build my internals wich will probably about a year away so.... just let me know what you think........... Oh yea should I run bigger injectors? I know your suppose to but with that low of boost Im not sure.... If so what size and you think a 195lph holley fuel pump work? Its already in and running so... Just let me know................
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Old Aug 27, 2004 | 10:59 PM
  #2  
yellowcrx1991's Avatar
 
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From: San Antonio, Texas
Default Re: 5-6 psi (chattownrexer)

I'm mostly a D series guy, so if I'm wrong, someone correct me.

If you feel the engine is in good condition, then 5-6 psi will be okay, but you'll have to retard the timing and run 93+ octane to be on the safe side. I'm not sure if the newer ecus are able to see boost from the MAP sensor and adjust the fuel map to compensate, I doubtful they can. You'll need either a missing link on your MAP tube or a VAFC, something to make the ecu not see the increase in pressure, otherwise the ECU will go into limp mode and dump as much fuel into the engine as possible.

Sure you can run bigger injectors, but heres the problem, without some sort of fuel management system(such as a VAFC or uberdata/hondata) your injectors are going to be firing the same exact duty cycle as your old injectors. That means if your duty cycle was set at 40%, you'll get 40%, whether your injectors are 220cc or 440cc. In other words, mucho gas(its a lot safer - less detonation, but bad gas mileage and lower power.

With the boost you'll be seeing, I don't think you'll need to upgrade your fuel pump.
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Old Aug 30, 2004 | 08:05 PM
  #3  
chattownrexer's Avatar
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Default Re: 5-6 psi (yellowcrx1991)

Thanks, I got a VAFC2, so..... I mean the motor is very good condition. Its very strong, and pulls really hard. I dont know if this is good, but I have a b16, ebay header, ebay intake, and 1.75-2" exhaust(cheap ****).... And I got pulled by an rsx-s with i/h/e all name brand expensive ****, he only pulled me by 3 cars though.... But yea thanks for the info, anybody else?....
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