How Much Lbs? Injectors, Fuel Pump/

[ZiMMie]

jst wonderin how much lbs does the stock injector put out? am think of pickin up a set of Mustang 5.0 19lbs.

2. question How much lbs does the 318i fuel pump pumps out. and wat about the 325i Pump.

thanx in advance.

[Digitalwave]

I believe stock 325i injectors are 14 lbs/hr. 19 lbs/hr is probably overkill unless you get an AFPR.

[ZiMMie]

wat if i have 2.7 buttom end will i still need Regulator?

[Jand3rson]

Size of the block has nothing to do with it.

[Digitalwave]

wat if i have 2.7 buttom end will i still need Regulator?

Is it a stock eta engine? Why are you running out of fuel?

[ZiMMie]

well am buildin a 2.7stroker so am thinkin the stock 14lbs injectors will not be enough.

[bkelsey86]

19lb injectors are all you need for anything short of a Turbo.

[ZiMMie]

^^ can u explain please?

[Jand3rson]

Your engine won't need any more fuel than what the 19# injectors put out.

[ZiMMie]

damn i guess am gonna be usin my stock injectors. wat about fuel pump? does the 318 and 325 have the same pumps? if not how much Lbs does each puts out?

[Brew]

Somebody should write up a injector FAQ...

[Fred]

The fuel pumps are the same. You don't need to upgrade the pumps unless you're putting out massive amounts of power.

[brodee]

The pump puts out more pressure than the engine needs, that's why there is a pressure regulator on it. The eta engine uses a 2.5bar regulator and the b25 uses a 3.0 bar.

If you do the math on the stock injectors they should be good up to about 178hp at the crank. Once you get past that point the duty cycle runs too high and it's time to get something larger.

I put 19# injectors in mine since I have an AFPR, cam, headers, and chip. I also just picked up an m30 AFM to put on there.