MY99TAWS6

iTrader: (3)

I was going with 60 pounders but maybe go with the bigger rc 75 ? pounders .But seems they are almost double the price of the 60s?
Can someone pm me with best price on these things.

Nasty N8

iTrader: (33)

They are almost double and are harder to tune and make about the same power. 60#ers get better with added pressure as the 75 do not react the same.

Nate

NoGo

iTrader: (2)

Go with the 60 lb injectors

The 75 lb injectors start to go static and deviate in flow above ~65 psi of fuel pressure

I run the 75 lb injectors, but I wouldn't recommend them.

MY99TAWS6

iTrader: (3)

Ok will just run the 60s .How much can you raise fuel pressure in the ls1? So how much can I make the 60s support before have to go to 96 or so low impedence. Can the 60s support 850rwhp at 80% or under with enough fuel pressure and is that pressure ok? I am going with twin fuel pump aps system with rails and adjustable reg and lines. Supposed to be ok for 1000rwhp.

NoGo

iTrader: (2)

You will have to run the mototrons at ~85 psi to make 850 RWHP with a turbo. That is a little high for the fuel pumps.

I'm going to go back on my recommendations and say get the 75 lb injectors instead.

To get around the static issue I run my fuel pressure at 42 psi with a 1:1 rising rate fuel pressure regulator (you need to have the 1:1 regulator).

Running the car in Open Loop - Speed Density will 95% of the injector's quirks right off the bat.