TREperformance 255 LPH fuel pumps
 

Hi everyone,

I am in the midst of installing my turbo and looking for a higher flow fuel pump. I chance upon TREperformance 255 LPH fuel pumps on Ebay.

http://cgi.ebay.com/ebaymotors/255LP...mZ110042293906

Does anyone here have experience with this fuel pump? Is this pump reliable? any inputs would be most helpful. Thanks everyone in advance!!

Roy

I have never used one but the fact that they state they are quieter than a Walbro will probably sell them quite a few. Maybe I will give one a shot next project.

See if you can get the seller/manufacturer to send you a graph of flow vs pressure. Also, give some information about your set up and goals.

Should flow enough for around 600 crank horsepower and will likely overpower your stock FPR; way overkill. But, not knowing your plans for the car, maybe it fits your bill. ??

Tell us a bit about your setup. I'm willing to bet all you will need is a walbro 190 hp and those run about 84 bucks shipped.. I just bought one last week. I believe it was lightningmotorsports.com

I like the walbro whine... I think its cool... lol

My setup is 1.6L NA engine (91). Running a Garret T25 turbo with a supra intercooler. RX7 AFM, 1.8 injectors, turbosmart boost controller, APEXI BOV and E-manage blue. I also have a fifth 305cc injector. I intend to get 200WHP cos anymore and my tranny will not be able to take it... prob 0.7bar boost...

I do not think that the stock pump and FPR is able to cope with my requirements...but then again, this pump is really an overkill.. I will check out the walbro 190...thanks everyone and I love this forum!!

At 0 ~Hg. the 255 flows somewhere between 60-70 Gal/Hr., which is enough fuel to supply 4 1100cc injectors (or 650hp). The 255 is also known to overload the stock FPR and raise the base idle pressure, since at idle it's providing around 65-75 Gal/Hr.

http://www.autoperformanceengineerin...ics/255lph.jpg

On the otherhand the 190HP acts closer to the OEM FP (155lph), but can supply enough fuel at the higher FPs we tend to run them at.

http://www.autoperformanceengineerin...ics/155lph.jpg
http://www.autoperformanceengineerin...s/hp190lph.jpg

20-30 Gal/Hr. @ 100psi is still enough to drive (4) 390cc injectors.

Which is like 350 crank horsepower.

One more question guys... my car is a 1991 NA.. however I see that most webbies sell fuel pumps for 94-97 miatas (NA)... so my question is what is the difference in the fuel connection between the earlier NAs and the later ones?

Thanks again!

Not really sure, but the '94-'97 ones seem to fit fine in the earlier models. There must have been only minor differences (maybe the '94-'97 lacked the funnel pick-up feed?).

94 got a larger tank so the pump and sender assembly is slightly different.

You are correct about ditching the funnel--you have to cut the funnel off (no biggie) to make the new pump fit.

Alternatively you could use a 94+ pump assembly in your 90-93. It will bolt in but your gauge will read higher than actual.

Takes about 2 minutes with a hack saw to cut off the funnel. Easy as poptarts.

the 255 does overpower your stock fpr wich is why i have had to start tunning my idle and everything else all over agian. oh well good times.

Hi Guys,

I finally managed to find an online shop that will ship to me. (I am located in Singapore) However they only carry the 255LPH pumps instead of the 190 ones. Will it make a difference if I use the 255 together with a Walbro Fuel Pressure Regulator instead of the 190 one (also with fuel pressure regulator)? What about reliability of the Walbro 255 pumps?

Many thanks in advance!!