Zach Posted April 28, 2014 Report Share Posted April 28, 2014 Is it really necessary to have one to get a proper tune. I am n/a and plan to stay that way; and have plenty injector for my combo. So what are y'all's thoughts?Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
Det_Riot Posted April 28, 2014 Report Share Posted April 28, 2014 No. My fuel pressure gets adjusted in my tune.Sent from my XT1080 using Tapatalk Link to comment Share on other sites More sharing options...
Zach Posted April 28, 2014 Author Report Share Posted April 28, 2014 That's what I thought but I've been having people tell me I needed one and I was second guessing myself.Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
Det_Riot Posted April 28, 2014 Report Share Posted April 28, 2014 I don't have one. Don't plan on getting one.Sent from my XT1080 using Tapatalk Link to comment Share on other sites More sharing options...
410sn95 Posted April 29, 2014 Report Share Posted April 29, 2014 No. My fuel pressure gets adjusted in my tune.Sent from my XT1080 using Tapatalk How? Are you using a different ECU than stock? Controls pump flow (Voltage?) The fuel pressure in the stock regulator is set and cannot be changed by the tune. The tune has nothing to do with adjusting fuel pressure unless your ECU actually controls pump flow. Maybe what your referring to is your tune is written for the stock FPR pressure and adjusts pulse width accordingly. To OP. The stock one as mentioned is just fine. Just get a good tune. Link to comment Share on other sites More sharing options...
Det_Riot Posted April 29, 2014 Report Share Posted April 29, 2014 How? Are you using a different ECU than stock? Controls pump flow (Voltage?)The fuel pressure in the stock regulator is set and cannot be changed by the tune. The tune has nothing to do with adjusting fuel pressure unless your ECU actually controls pump flow.Maybe what your referring to is your tune is written for the stock FPR pressure and adjusts pulse width accordingly. To OP. The stock one as mentioned is just fine. Just get a good tune.I will be 100% honest and tell you that I have no idea. But the tuner I go through (Lidio @ alternative auto) always recommends using the stock FPR. He always said it was all controlled in the tune but I never dug into it anymore than that. Sent from my XT1080 using Tapatalk Link to comment Share on other sites More sharing options...
410sn95 Posted April 29, 2014 Report Share Posted April 29, 2014 I will be 100% honest and tell you that I have no idea. But the tuner I go through (Lidio @ alternative auto) always recommends using the stock FPR. He always said it was all controlled in the tune but I never dug into it anymore than that.Sent from my XT1080 using Tapatalk Yeah, a tune will account for the stock FP with your specific injectors but has no control over pressure or flow unless you got something like stand alone adjusting voltage to the pump. Most tuners these days just use the stocker for the simple reason... It works. An adjustable regulator was really only needed when ECU tuning was not as prevalent or you are trying to make injectors act bigger than they are. IE. run a base pressure of 50lbs to force the injectors to inject more per pulse. Link to comment Share on other sites More sharing options...
Det_Riot Posted April 29, 2014 Report Share Posted April 29, 2014 Yeah, a tune will account for the stock FP with your specific injectors but has no control over pressure or flow unless you got something like stand alone adjusting voltage to the pump. Most tuners these days just use the stocker for the simple reason... It works. An adjustable regulator was really only needed when ECU tuning was not as prevalent or you are trying to make injectors act bigger than they are. IE. run a base pressure of 50lbs to force the injectors to inject more per pulse.Gotcha. Makes sense. Thanks for the info!Sent from my XT1080 using Tapatalk Link to comment Share on other sites More sharing options...
410sn95 Posted April 29, 2014 Report Share Posted April 29, 2014 All good mang! I guess I should add, Aftermarket FPR's are also needed when your going to bigger aftermarket rails. There are no provisions for a stock FPR on any that I know of... Link to comment Share on other sites More sharing options...
Zach Posted April 29, 2014 Author Report Share Posted April 29, 2014 Good info man, I definatly will be sticking with the stock FPR.Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
smallblocksn95 Posted April 29, 2014 Report Share Posted April 29, 2014 Good info...my car had an adjustable when I bought it. Since then I've only cranked it from 32lbs to 39 Link to comment Share on other sites More sharing options...
Steve-Oh Posted April 30, 2014 Report Share Posted April 30, 2014 I have one because it came with my rails. I think I set it once and never touched it again. Disregard the fact my car only ran for about 4 months last year...Sent from Space Link to comment Share on other sites More sharing options...
