So, Mike (35thsc) and I went to a local speed shop. Mike needed some pushrods for an engine he is building. Well I was there and thought it would be a good idea to install a fuel pressure gage at the rail, quick 20 minute install . Anyway, long story short, I bought a BBK liquid filled 0-60 gage and after 3 trips to different places we bought some brass fittings that worked.
Now this is the part thats weirding me out. Once installed, it read 30 PSI, with the vaccuum line on the FPR. If I revved it, it would go up to 40 so fuel pressure DID seem to go up with boost. So I drove home and when I got here I decided to check for leaks. The car ALWAYS has a stutter after a long drive...it kinda lopes and misses. Fuel pressure was down to about 20-22 and the car was warm (usually that warm around the O and R). Then after I drove it at night from the gf's place, it read 30.
Mike and I put in 255 lph and 36 lb/hr on my car, but never replaced the FPR. I'm not too sure if I have vac leaks but it idles around 17-18 inches of Hg. I have the C&L 76mm with the 36-38 sample tube. Its kind of scaring me a little. The fuel filter was replaced 3-4 weeks ago and the old one was pretty fugged.
Anyone know where my pressure should be and why mine is so low???
Alex
Now this is the part thats weirding me out. Once installed, it read 30 PSI, with the vaccuum line on the FPR. If I revved it, it would go up to 40 so fuel pressure DID seem to go up with boost. So I drove home and when I got here I decided to check for leaks. The car ALWAYS has a stutter after a long drive...it kinda lopes and misses. Fuel pressure was down to about 20-22 and the car was warm (usually that warm around the O and R). Then after I drove it at night from the gf's place, it read 30.
Mike and I put in 255 lph and 36 lb/hr on my car, but never replaced the FPR. I'm not too sure if I have vac leaks but it idles around 17-18 inches of Hg. I have the C&L 76mm with the 36-38 sample tube. Its kind of scaring me a little. The fuel filter was replaced 3-4 weeks ago and the old one was pretty fugged.
Anyone know where my pressure should be and why mine is so low???
Alex