Any aftermarket fuel pump should never be run low on fuel. They like to burn out.edlugz wrote:any paticullar model??
get the walbro 255 with install kit for $83 shipped from our nico sponsors.edlugz wrote:i meant is there model of pump i should look for. what kind of flow rate..i guess ill just do some research, thanks for the help
It may fix it, although, random backfiring is pretty normal, turbo cars run rich,wzntha wrote:
I have a walbro fuel pump and a stock FPR, and my car seems like it is running rich because i can hear small backfires from my exhaust every now and then. would changing out the FPR solve this problem?
1. Stock FPR is NOT good for anything above a stock application. You want a 1:1 regulator to compensate for the increase in boost.redtop91 wrote:255 is the standard rate for 240sx's or any car. You won't need more than that and if you do most people run 2. You can get away with running a stock FPR on most setups using a higher volume fuel pump but keep in mind that occasionally fuel will push by stock FPR's and cause you to run rich so if that happens you'll need an FPR.
Possibly, but like Sideways said, turbo cars run rich as it is. Next time you see a TT supra put a lighter to it's exhaust LOL. As regards the FPR, you should upgrade it like codyace said but I don't think it'll resolve your backfire. I ran a stock FPR with my walbro but I never had any trouble.wzntha wrote:
I have a walbro fuel pump and a stock FPR, and my car seems like it is running rich because i can hear small backfires from my exhaust every now and then. would changing out the FPR solve this problem?
Possible soltion, but I would think it wouldn't be as intermittent as he claims.redtop91 wrote:No. That is bog. You have a boost leak most likely. The root cause is your car is running richer than normal but the reasons for this are myriad.
Fine and safe are very different things, considering most tunes are for people using 1:1 rising rate FPRsredtop91 wrote:As regards the FPR, you should upgrade it like codyace said but I don't think it'll resolve your backfire. I ran a stock FPR with my walbro but I never had any trouble.
Very true but my point is not that it's 100% safe, but it's not death defying or anything, but 99% of the time in a daily driven situation where you hardly hit boost, is a realistic situation, I'm going to stand by my claim that it's fine if you don't mind occasional backfire. If one is going to nitpick then yes you should but the 2 years of daily driven and flogging on it that I personally did to my SR attest otherwise. But that is all on the FPR discussion.codyace wrote:Fine and safe are very different things, considering most tunes are for people using 1:1 rising rate FPRs
For a car on a stock setup, yes it will be fine. For anything making real power, it's notredtop91 wrote:
Very true but my point is not that it's 100% safe, but it's not death defying or anything, but 99% of the time in a daily driven situation where you hardly hit boost, is a realistic situation, I'm going to stand by my claim that it's fine if you don't mind occasional backfire. If one is going to nitpick then yes you should but the 2 years of daily driven and flogging on it that I personally did to my SR attest otherwise. But that is all on the FPR discussion.