It’sjusta6
New Member
Specs:
87 grand national
Racetronix 255LPH fuel sender
Billet FPR by Racetronix
Completely stock in every way besides that
Thank you guys first for any knowledge or any info you may have!
Pump and regulator was installed on the car for preventative maintenance on an old fuel pump. Plugs were also changed from .45 to .35… since then I cannot get drive ability to be like it used to be. Adjusted the regulator per factory instructions and even took pictures of the old pressure on key on, running with and without the reference line on the stock regulator. Then matched those number with the adjustable regulator. Idle feels great and you can stab the throttle while in park and it sounds great. Under load is a different story. Lots of pops and burbles under load, and hardly any power. Have played with the fuel pressure running all the way from 35-50 even just out of curiosity and while it seems to feel best at 45-46, it still is not anywhere close to where it should be. My question is what could I be doing wrong to finalize drive ability. Can I use the stock 233 regulator on this style pump and would that fix my issues? I don’t understand how I can go over such a broad range of fuel pressure and no matter the range I can’t get it back to where the stock pump was. Thank you guys very much for the help or things to try! I don’t have a scan master sadly so I am reaching out to you before I buy one.
87 grand national
Racetronix 255LPH fuel sender
Billet FPR by Racetronix
Completely stock in every way besides that
Thank you guys first for any knowledge or any info you may have!
Pump and regulator was installed on the car for preventative maintenance on an old fuel pump. Plugs were also changed from .45 to .35… since then I cannot get drive ability to be like it used to be. Adjusted the regulator per factory instructions and even took pictures of the old pressure on key on, running with and without the reference line on the stock regulator. Then matched those number with the adjustable regulator. Idle feels great and you can stab the throttle while in park and it sounds great. Under load is a different story. Lots of pops and burbles under load, and hardly any power. Have played with the fuel pressure running all the way from 35-50 even just out of curiosity and while it seems to feel best at 45-46, it still is not anywhere close to where it should be. My question is what could I be doing wrong to finalize drive ability. Can I use the stock 233 regulator on this style pump and would that fix my issues? I don’t understand how I can go over such a broad range of fuel pressure and no matter the range I can’t get it back to where the stock pump was. Thank you guys very much for the help or things to try! I don’t have a scan master sadly so I am reaching out to you before I buy one.