Everyone with 310cc injectors

[217gsr]

Is anyone running the 310cc injector setup on a JRSC GSR that DOES NOT have either a Hondata or Apex fuel controller? In other words, anyone just using a JR FMU or a CArtech to tune their fuel curves?

If anyone has a similar setup to:

JRSC @ 8+ psi (I have 9 psi, personally)
310cc injectors
Map mod
Cartech
B&M

Let me know how this setup works for you guys. Please include fuel pressures.

[cpa]

The 310s should work with a Cartech FMU and an adjustable FPR (i.e. AEM, drilled out OEM with B&M). With 290 cc injectors, I think the FPs to start at were about 34 static on the FPR, 42 static on the FMU and a rise rate around 4:1 or a little less. Of course, I never did get them to work [img]redface.gif[/img] . With 310's everything would be a little lower, not sure how much. I'll be interested to see how your setup will or won't work with the MAP mod. The JR FMU would be too high of a rise rate at 5:1.

[Holden]

My setup is:

10psi boost
320cc injectors
AEM FPR
Cartech FPR

Idle FP = 25psi
AEM Static FP = 40psi
Cartech Static FP = 35psi
Max FP = 67psi

It took me 3 months and a lot of experimenting to get the FPRs set right. If you end up using the Cartech with high boost, send me an email and I'll give you some hints.

[217gsr]

Cool. Okay, around 38 psi static on FMU as a starting point. Do you guys think I should start with a HIGHER or LOWER static for the FPR (yeah, I know I've asked this before, but I'm still not too clear)? [img]smile.gif[/img]

Just curious. . . is drilling the stock FPR necessary with larger injectors and using a B&M? I thought that was only necessary because the stock FPR doesn't flow enough fuel through the return line when using stock injectors. So. . .if static pressures are lowered by the new injectors, wouldn't that make drilling the stock FPR even more unnecessary?