Im out of fuel again at 20lbs with 83# injecters with 80psi of fuel. Anyone running 160lb injecters? If so let me know how well they idle on gas

 

Yes, fine with 1,100rpm idle in a 383.

Rich

 

yeah thats what I gathered from the turbo mustang guys.. Ill give them a try

 

They tend to be decent with sequential fuel injection. The GN guys have run them for years with sequential.

If you have a "batch fire" or "bank to bank" (as are most aftermarket LT1 setups), they may be rather poor unless you can tolerate a very rich idle (13:1 or richer). With twice the firing pulses 83's bank to bank & 160's sequential are nearly the same.

Rich if you are referring to your car with a stock computer, it should idle quite nicely. I've had a few 383's that would go no lower than 13.7 at a 900rpm idle in bank to bank mode.

 

Lonnie: the idle is that high to get decent vacuum. In closed loop, it will maintain 14.7 at 800 just as well.

Rich

 

Do most of you guys notice the same thing...With a batch fire you cant get the a/f above 13.8ish with out the motor bucking a bit and going lean. If I went with a seq box would that allow me to run the motor leaner such as 14.7 without the car bucking because its lean

 

I tried the 160's and cant get the computer to control them with my batch fire box. The problem is its constantly going from 0-20% correction in the same cell. I try changing the surrounding cells on the map and get no luck. I didnt have any problems with this running 83# injecters. I can get the car to idle fine with a 13.5-14.0 a/f .Crusing is when I get all the problems. Has anyone got this to work with bank-bank? Im assuming most did it with SFI.

The one reason I want to keep the 160's is because I want to mix meth in with my 110 octane fuel. I dont want to spray meth, thats just one more thing to go wrong during a race. I think the car will make 1100rwhp at this point, but I want to be able to daily drive the car still.