adjusting Fuel pressure regulator
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adjusting Fuel pressure regulator
hey i need to know which way i turn the nut to make it lean and which way i turn the nut to make it rich, thanks
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Spring Hill
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Get a fuel pressure guage by b&m 
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why do people actually use fprs to adjust fuel according to air fuel ratio??? Not the best idea.... When you do this you are keeping that constant pressure whenever you are at WOT, no matter what rpm, and this can be very unsafe... You never want to have your fuel pressure too high, as shit will break and you will spray fuel all over a running motor, and if you are smart, right now you should be thinking "fire".... Also, if you are leaning out, most likely your injectors are maxed and you need bigger ones, or its something else that is your problem (fuel filter, weak pump, etc...).... Dont get me wrong, you can to an extent do this, but it is not accurate, and not always safe... I reccomend if you have to go a cheap route, get an safc, and some slightly larger injectors (prelude 290s work fine) and go from there......
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Originally posted by InsaneCivicSedan
why do people actually use fprs to adjust fuel according to air fuel ratio??? Not the best idea.... When you do this you are keeping that constant pressure whenever you are at WOT, no matter what rpm, and this can be very unsafe... You never want to have your fuel pressure too high, as shit will break and you will spray fuel all over a running motor, and if you are smart, right now you should be thinking "fire".... Also, if you are leaning out, most likely your injectors are maxed and you need bigger ones, or its something else that is your problem (fuel filter, weak pump, etc...).... Dont get me wrong, you can to an extent do this, but it is not accurate, and not always safe... I reccomend if you have to go a cheap route, get an safc, and some slightly larger injectors (prelude 290s work fine) and go from there......
why do people actually use fprs to adjust fuel according to air fuel ratio??? Not the best idea.... When you do this you are keeping that constant pressure whenever you are at WOT, no matter what rpm, and this can be very unsafe... You never want to have your fuel pressure too high, as shit will break and you will spray fuel all over a running motor, and if you are smart, right now you should be thinking "fire".... Also, if you are leaning out, most likely your injectors are maxed and you need bigger ones, or its something else that is your problem (fuel filter, weak pump, etc...).... Dont get me wrong, you can to an extent do this, but it is not accurate, and not always safe... I reccomend if you have to go a cheap route, get an safc, and some slightly larger injectors (prelude 290s work fine) and go from there......
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By the way, in my rant I forgot to point out the obvious.... A fuel pressure regulator is just that, a PRESSURE regulator that regulates fuel PRESSURE.... it in no way changes the amount of fuel entering the cylinders, it is not a fuel flow regulator....
For example, say you have 450 cc injectors running at 100%, you have 450 cc's of fuel.... the only difference with the FPR would be the pressure at which the fuel enters the cylinder..... 450cc's@55psi and 450cc's@75psi are both STILL 450cc's..... get it???
For example, say you have 450 cc injectors running at 100%, you have 450 cc's of fuel.... the only difference with the FPR would be the pressure at which the fuel enters the cylinder..... 450cc's@55psi and 450cc's@75psi are both STILL 450cc's..... get it???
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Originally posted by InsaneCivicSedan
By the way, in my rant I forgot to point out the obvious.... A fuel pressure regulator is just that, a PRESSURE regulator that regulates fuel PRESSURE.... it in no way changes the amount of fuel entering the cylinders, it is not a fuel flow regulator....
For example, say you have 450 cc injectors running at 100%, you have 450 cc's of fuel.... the only difference with the FPR would be the pressure at which the fuel enters the cylinder..... 450cc's@55psi and 450cc's@75psi are both STILL 450cc's..... get it???
By the way, in my rant I forgot to point out the obvious.... A fuel pressure regulator is just that, a PRESSURE regulator that regulates fuel PRESSURE.... it in no way changes the amount of fuel entering the cylinders, it is not a fuel flow regulator....
For example, say you have 450 cc injectors running at 100%, you have 450 cc's of fuel.... the only difference with the FPR would be the pressure at which the fuel enters the cylinder..... 450cc's@55psi and 450cc's@75psi are both STILL 450cc's..... get it???
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i tired adjusting it and it still didnt change , when i start driving it goes to lean, and i tried adjsting the regulator and it didnt make it any richer, but if it did work when i turned the other way and leaned it out, why would my car be running lean all of the sudden, 2 weeks ago it ran fine, then for a week i didnt start it and wheni finnaly did it ran like shit and i got new spark plugs and it ran better but it runs lean, i need help
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you need to learn what to do before you start messing with things. ask your brother to help. and by the way i need some corner lights you have a set??
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Note:
If you have a check engine light, Your chucky cheese meter is no-where near accurate.
If you have a check engine light, Your chucky cheese meter is no-where near accurate.
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