fuel pump?
 

are you guys running stock fuel pumps with 450's? if not what are you using?

Re: fuel pump?
 

walbro 255lph Intank. Dont use an inline, just use an intank and replace the stock pump. The stock pump is fine for low-med boost. Dont use an FMU

Re: fuel pump?
 

walbro, a good shop wont even tune your car without a high flow fuel pump.

Re: fuel pump?
 

This is pretty much the last thing I have to buy. I have a d15b7 running 450's and uberdata on a .48/.60 T3. Can I pretty much run as much pressure as possible (10 psi max) until it starts to lean out all of the sudden and then assume that is the limit of the stock fuel pump?

Re: fuel pump?
 

upgrading is like insurance, not because you have to have it, but because its brand new and you know it wont fail,walbro 190 lph or 255 lph would be good, either one will do the trick, most people would say defenitly go 255, just cuz most think more is better, which isnt always true, in this case it wont matter, and i never heard of a shop prior to some dyno tuning ask 'hey you got a stock fuel pump? if so sorry take your $150 per hour somewhere else'......btw your stock pump will work fine if you need it to....

Re: fuel pump?
 

the 255 is overkill unless youre going for like 500hp... 190lph is just fine. Id rather upgrade first than either lean out due to finding the limit of the pump or having it fail altogether