Has anyone installed the RPW fuel pressure regulator? I know I cheated and added it to my mod list, but its on the way and I was wondering if anyone has any input for the install. I know stock PSI is 38lbs and injectors are rated to 43.5 PSI.

Also I was thinking that I might get a air fuel guage. Anyone have any recomendations?

 

You should get some instructions from RPW on how to install it. And where did you get the info on our injectors being rated to 43.5 PSI? I'm on 43 psi idle and when you hit the gas it's like 60psi, and turbo guys are running even more with FMUs.

 

I read it on an older thread. I knew that it could be wrong and I couldnt find anything else on it so thats why I was asking. I'm sure I'll get instructions from RPW and from what I understand its a pretty straight forward install, but like alot of my mods there is always that one thing that requires some extra attention. I just was wanting information to prepare for the install.

So what PSI do you think the FPR should be set at for safe operation?

 

RPW is raising rate, you will probably have to set it to 38psi if you don't have any major engine mods. And you might also be right on the top end dunno really. The install should be really easy just watch out because gasoline is flammable, and are you getting a gauge too?

 

Did you see my mod list? Its under "drives". 38psi is what Matt, at vision imports, said it should be set at. If you mean pressure gauge, yeah, I got the one w/ the pressure gauge. What do you mean by "might also be right on the top end"? Thanks for the warning about the gas. I'll be alright though, FYI, I've put all my mods on myself, except for springs and exhaust, I am always careful and take my time. no

 

how much did this cost u? did u getit through accolade?

 

You might be rich on the top because it's a raising rate FPR. It will gradually add more and more fuel with your rpm going up. Maybe, RRM's piggyback will adjust your map for it, dunno. Definitaly try posting some pics and maybe dyno?

 

I got it at Vision Imports, $279 w/ pressure gauge, $330 shipped. It comes from RPW in Australia.

 

Thats why I was thinking about getting a Air/Fuel gauge. RPW's website describes it as sending the fuel at a faster rate than stock on acceleration providing better throttle response and contributing to better engine performance. If i was rich I could put a breather on my CAI possibly to take care of it, unless the piggy takes care of it. Anyway, they dont mention anything about running rich. The FPR is one of the items that RPW recomends on its upgrade path for the US Lancer along with a piggyback ECU. I have all the upgrades they recomend (and then some) except for the phenolic TB and IM gaskets. I wish I would have known about hte phenolic IM gasket when I put RR IM on.

 

Don't take my word for it, you might be rich, i'm not sure. Getting an Air/Fuel gauge is not a bad idea. But why did you say you would put a breather filter on your CAI? How would that help in anything? I think it would only cause more problems if anything.

 

Do you have any recomendations for any type of air/fuel gauge? I just was kicking around the idea that if a breather on the return of the CAI could cause it to run lean and if the FPR caused it to run rich there might be a way to use one to offset the other, but trust me I'm not in any hurry to test that theory.

 

I don't think a breather filter would make you run leaner. Don't do it. Just follow the instructions on the your new FPR, and then just get yourself a wideband gauge like AEM, $270 shipped. No need for narrowband, save the money and get yourself a real air fuel reading.

 

I dont know about the breather making it run lean either but I read everything I could find on the topic and a some of the evolving and evolved members felt that if you put two breathers on, one on the valve cover and one on the return on the SRI, or CAI that the one on the intake would alow for unmeasured air to enter the manifold because it is after the MAS. Makes sense I guess, I thought what would be the difference if clean air came in there or dirty air from blow by and uncombusted fuel or oil, it would still have the same amount of vaccum reguardless of where the air came from. That might not be true though as the engine should be pressurized and not alow for air to be drawn into the intake unless there was blow by. I hope you followed that. What do you think

 

Oh please, that's total BS, two small breather filters will give you more air...don't believe that stuff man, and it wouldn't make you more lean. Just forget about that whole thing with the breather filters.

 

If you say so. Now I'm afraid to put mine on Anyway thanks for all the input, I appreciate it