What Fuel Pressure To Look For (GM SC/320cc Inj) - Boost Forum

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What Fuel Pressure To Look For (GM SC/320cc Inj)
Saturday, August 13, 2005 10:56 PM
My set up so far looks like this

GM SC
2.7" Pulley
320cc Injectors
Adjustable FPR (LT1 Corvette one)
Autometer FP Guage on Fuel Rail

To adjust it I just turn the allan key and what fuel pressure should I hunt for. Keep in mind I just am running this set up until I get it over to my Dads friend shop to put in the Cartech FMU. I have heard between 55-65 PSI, would that let me run okay for the 15 min drive there?

Just let me know in advance when I will blow up this motor,

Thanks for answering my Newb questions once again

Chris



http://members.cardomain.com/vertz24 1998 Z24 Convertible

Re: What Fuel Pressure To Look For (GM SC/320cc Inj)
Sunday, August 14, 2005 10:14 AM
im also listening, i just got myself a set of 320cc's for my setup which is very similar to yours Chris, the only difference is im running the 2.6" pulley and alcohol injection on a fairly well prepped motor, right now im having some pretty major tuning issues with my car. I just couldnt get my brown tops or 370cc injectors to work right, it was always rich under idle, then as far as my fmu goes im running a set rate vortech that right now im also unsure what it should be set at so its at a very safe 12:1, im thinking somewhere around the 4:1 or 3:1 will be more what im looking for once i can get this damn idle figured out. Anyways sorry i dont have your answer for the pressure, but im listening in because i need the same exact advice, so come on guys help out 2 newbs here in the boost world, thanks alot guys
Re: What Fuel Pressure To Look For (GM SC/320cc Inj)
Tuesday, August 16, 2005 1:19 PM
Bump, anyone?



http://members.cardomain.com/vertz24 1998 Z24 Convertible
Re: What Fuel Pressure To Look For (GM SC/320cc In
Tuesday, August 16, 2005 4:19 PM
my idle fuel pressure is 48 psi on my 00

i think the older 96-99 idle pressure was 40-45 , cause my 97 was 42 psi






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