Running 45 psi base fuel pressure.

Thanks

Ben Stian

 

No one that have pushed their 120lb injectors to max?

 

To many questions to follow. What size turbo, what dyno, what engine managment, tuner, conditions , ect. ect. ect. Please provide more details for the question to be properly responded to.

thanks

Evan Smith

 

120lb=1260cc. Judging by the 1200s I have done, even with twin pumps you will be out of fuel with 12.0 AFRs by the low to mid 500s. 1600s (150#) usually are done by mid to high 500s with twin pumps on e85.

 

Thanks
I am currently running 517 whp (Dynapack) on a single Walbro before going lean on pump fuel. Have upgraded to twins, but will upgrade further if thats is not enough.
Current turbo is a 3582R 0.63, but have a new HTA3582 0.82 which will be mounted.
Enginemanagement is Vi-PEC (dont see how a different ecu will affect the max output from the injectors)
Tuner is me.
Dynoroom temperature about 20 degrees celsius
I know that different engines have a different BSFC, but based on your experience, 120lb injectors will lean out at mid 500 on E85? I was hoping to break the 600 whp barrier....

Thanks

 

Vi-Pec is the new Autronic yes?

 

No, it is the new ecus from Ray Hall: http://www.vi-pec.com
VERY nice ecus

 

Yeah its what was autronic, Ray Hall had Autronic as a subsidary as I recall. I have heard about them from a local dealer, I'll look into them some more.

 

The Lucas 120lb. injectors have been flow tested by FIC at around 1130 cc at 43.5 psi. These ratings are similar to RC 1200's and both will probably flow 1260 approx. at around 50 psi I suppose they would support 500

Data borrowed from RC engineering site

Flow Rate - CC's:
1200 CC's / MIN @ 55 PSI
1090 CC's / MIN @ 43.5 PSI

Flow Rate - LB's:
114 LBS / HR @ 55 PSI
104 LBS / HR @ 43.5 PSI

 

Im maxing my RC1200s on E85 on single pump around 26 pounds a little over 500 hp. Hopefully the Full Blown fuel system and 1600s helps out.

 

Thanks

A single Walbro 255?