Okay here’s the deal… Earlier this year I was building my turbo kit and for the most part I had everything but a shitty shop with a wannabe welder. I went through a blox manifold, the shops log manifold and two downpipes by them also. Well around here it’s hard to find a reputable shop so I gave up.
I guess you can say I went half way and backed out. I had my whole fuel setup but no one to do my pipings and manifold. Now I pulled everything out of the car besides for the fuel pump cause I remember how much of a bitch it was. (second fuel pump assembly due to crossthreading)
My question is … is there any harm in keeping a 255 walbro in a mostly stock b18a.
Mods are, if it matters: Intake, header, full exhaust, act clutch, prostreet flywheel and that’s all I remember.
Also if you guys wanna buy some parts… you can PM me.
You will be running richer now as the stock FPR cannot return enoguh fuel with the 255lph fuel pump therefore resulting in higher fuel pressures.You will ahve to get an aftermarket FPR, or drill out the stock one.
he is saying the stock fpr won’t flow enough, but an aftermarket one would. if this were true you wouldnt even have to turn it down. b&m doesnt make an aftermarket fpr anyways, they make an adjustable top half for the oem honda one, garbage imo. i have an aeromotive on my car.
KraZEtEggIE: You don’t notice any difference because you have an aeromotive.
It’s been proven that the stock regulator cannot flow enoguh to maintain proper pressures without extra reliefe or a higher flowing regulator. If you goto Endyns site they talk abotu it as well and have a DIY on how to fix this. A stock regulator can try to maintain all the pressure it wants, but if it can’t evacuate the fuel fast enough, the pressures will go up… Sorta like a badly placed wastegate with the end result of boost creep.
sorry to confuse you, the aeromotive hasn’t been used yet. car was running on stock fpr last time with the walbro 255. i’m not running the bolt on, i run an AEI-13101. it’s pretty much a pain in the ass to run, i would just go with the AEI-13116 like tchleung said. you can use pretty much any 30-60psi fuel regulator with a little effort.
maybe the fp goes up a bit but its not noticable and in theory it would only do it at idle.
Don’t get me started on the nut job scam artist Endyn. Leave it in, it won’t cause you any problems. I just passed CA smog last weekend with it in, and it passed by a very comfortable margin.
I think there are a lot of myths being remarked on in this thread, and until someone can successfully run some flow tests on a line with a stock fp and fpr vs a 255 fp and fpr, no one can say who is right. I ran all new high pressure fuel lines with my walbro 255 pump, used my STOCK, fpr, after inspecting it and making sure it was fine, and was not running any richer then before. My A/F mixtures stayed the same. Now if you stock fpr is shit, then I could see those issues occuring, or if you lines or shitty, leaks occuring. With any upgrade that deals with an increase in line pressure, you should make sure to check out everything.:naughty:
I know on my turbo civic d16y8 the walbro 255 high pressure ran the fuel pressure up to 50psi on the stock FPR (car at idle, vac line off), from the normal 42-43 I will be using the aeromotive FPR on my b-series
I’m using a walbro 255 with a stock fpr, slightly bigger injectors, dyno tuned on with an SAFC. Been driving on this setup for 1.5 years w/o any issues, (that I’m aware of).
Edit: sorry I just realized this is the F/I board. So my statement probably isn’t relevant.
CagaLeche: Weather your fuel rpessure was raises or not it would not matter for you sicne they would have compensated for taht when tunnig it on your AFC. Out dozen + cars I’ve helped build and tune with 255lph pump ons tockr egulator, the fuel trims were all slightly increased due to fuel pressure and I had to compensate for it via turboedit/crome etc that the car was using.
