00Z71

iTrader: (2)

I am finishing up my front mount turbo. What would be the max boost I can run on my 6.0 using 44lbs injectors? I also have a set of 50lbs injectors I could use but i have to switch out the pig tails. What size should I use or what would be recommend?

Would and inline 255 fuel pump be enough?

vanillagorilla

iTrader: (1)

It's more of a question of power really, not boost. Could you tell us some more about your setup (turbo size, is the engine built, heads, cam etc.)? What are your goals?

00Z71

iTrader: (2)

It is a front mount T-72 turbonetics w/4" down pipe, 6.0 lq4 w/rod bolts, proted oil pump, LS2 timing chain, 317 heads with a little work, 918 springs, pushrods, and cam.

zippy

I'm assuming this is for a pre-04', you should be good with a turbo'd 6.0L to about 6psi. By 8psi you will be well into getting lean at higher rpm.

03sierraslt

iTrader: (22)

When I pulled my 44's off I was at 7psi and was seeing 112-115% duty cycle at 5650rpm. The 60's I have now are at 59-60% at the same boost and RPM.

slowec

iTrader: (9)

Sounds like your 44's belong in the classifieds

vanillagorilla

iTrader: (1)

I say go with the 50's, but I'd rather see 60's on there so you could take advantage of that turbo a little more.

Wilde Racing

iTrader: (26)

I've ran 14 psi with 44 pounders.




And lots and lots of meth.

vanillagorilla

iTrader: (1)

Yeah, he didn't mention meth, so I'm assuming he's just running gas, so he'll need bigger injectors.

365ZUM

iTrader: (1)

Strange... I have 44lb injectors in my 06' LQ9 and run ~9lbs or so full time. Besides an MSD Boost-a-Pump, my fuel system is stock. No pinging whatsoever, and my A/F (though I can't recall the exact number) is actually too rich, even at high RPMs. Meth is installed, but not injected.

As long as you have a good, safe tune IMO you'll be fine with the 44's.