fuel pump with UR kit?
#1
fuel pump with UR kit?
hi,
just want to know if i have to upgrade the fuel pump with an ultimate-racing kit? the kit doesn't come with a fuel pump but have 600cc injectors in it.
just to be sure
thanks
just want to know if i have to upgrade the fuel pump with an ultimate-racing kit? the kit doesn't come with a fuel pump but have 600cc injectors in it.
just to be sure
thanks
#5
If you're reading A/F ratio off the O2 sensor you may not be getting the whole picture. The stock O2 sensors bottom out (they're only designed to read a certain voltage range). You need wideband to truely know your A/F ratio picture.
#7
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Originally Posted by billybobxxx,Aug 12 2007, 08:33 PM
ok, but my a/f ratio gauge doesn't indicate that i am lean....always stay in rich part of the gauge even at 8psi...
why i should have a fuel pump if the OEM is ok??
why i should have a fuel pump if the OEM is ok??
I'm in the same boat... any comments?
D.
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#8
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Originally Posted by hokies2000,Aug 13 2007, 01:45 PM
If you're reading A/F ratio off the O2 sensor you may not be getting the whole picture. The stock O2 sensors bottom out (they're only designed to read a certain voltage range). You need wideband to truely know your A/F ratio picture.
The way you should look at it with FI is.. The more prepared the better. You may not NEED the extra flow of fuel from the pump at your current boost level, but why strain the oem pump to where it could cause failure. Might as well upgrade it to avoid a pesky problem that you will have to troubleshoot down the road..