Inj Duty Cycle Maxed out
03-15-2011 | 11:59 PM
#16
Race Car
Joined: Dec 2003
Posts: 4,477
Likes: 4
From: Atlanta, GA
Mine was maxing out 30lb injectors with the 36psi FPR @ 8.5psi boost. You are running only 24lb injectors with 39psi FPR supercharged? That's asking for trouble. I would go for at least 30lb.
Oh, and if you raise the fuel pressure but keep the injectors the same size, you may want to start thinking about upgrading your fuel pump.
Dan
'91 928GT S/C
475hp/460lb.ft
Oh, and if you raise the fuel pressure but keep the injectors the same size, you may want to start thinking about upgrading your fuel pump.
Dan
'91 928GT S/C
475hp/460lb.ft
Last edited by dprantl; 03-16-2011 at 12:24 AM.
03-16-2011 | 10:35 AM
#17
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Joined: Jan 2003
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From: Green Bay Wisconsin
The data log AO posted looks just like it is supposed to.
Yes, the injectors would be considered too small for the power level you are running and that is why the FMU is there. Vortech has been offering systems like this setup for years, and still do. Your 24lb/hr injectors are equivalent to 36lb/hr in conjunction with the FMU.
Current Murf928 Stage 1 kits come with 42lb injectors and no FMU (same as Stage 3). Customer number one with this setup is shipping next week assuming the rest of my testing goes as planned this weekend.
Yes, the injectors would be considered too small for the power level you are running and that is why the FMU is there. Vortech has been offering systems like this setup for years, and still do. Your 24lb/hr injectors are equivalent to 36lb/hr in conjunction with the FMU.
Current Murf928 Stage 1 kits come with 42lb injectors and no FMU (same as Stage 3). Customer number one with this setup is shipping next week assuming the rest of my testing goes as planned this weekend.
