hi i have a greddy at 10 psi with an AFPR , but i also have to fo the install a EMU and 460 injectors , my car already as the o2 clamp and lc1 wideband , i would like to know if i can push my turbo to 15 psi with only the 460 injectors or do i have to mantain the AFPR.

 

460s and stock fuel pressure is enough fuel for 15 psi as long as the EMU has no problem controlling the 460s which it shouldn't.

I ran 15 psi on my T28 FMII for a year with 440s through the stock rail. I did eventually go with the Jim B dual feed rail but don't think it made much difference.

Frank

 

I had the EMU on my '92 with NO AFPR or upgraded fuel pump. I was running about 14-15 psi with 550cc Injectors. The EMU can handle it... I'm not sure though if the 460 are enough? someone else may chime in and confirm them...

 

460's would probably be good for 225-230whp.

 

I'd estimate the same. So around the 15psi mark.

 

ok you guys are saying 225 rwp , but there is a member in the forum that as 245 rwp with 1.8 injectors and EM and AFPR so lets say im trying to get 250 rwp , can the 460 inj be enough or do i need to retain my AFPR

 

The reason he was able to get to 245whp using 1.8 injectors was because he was running more the 2X the fuel pressure! 250whp with 460cc injectors would probably require additional fuel pressure.

Jay