Do I need a walboro 255lh hp pump?

[InfamousGSR]

My setup is a JRSC GSR with MVM stepper pulley. Im shooting for 250whp.

I have a 99 integra GSR with 46,000 miles on it.

Im using a Hondata S200B with RC 440 injectors along with a P28 ecu and JRSC big boost basemap.

Im wondering if I should put the pump in or sell it? Im afraid it will dump to much fuel in my car and then I will need to buy a aftermarket FPR to have it adjusted more.

So what do you guys use with your setup? Anyone know is that hondata JRSC gsr car had a higher psi fuel pump to or stock?

[Blue-Civic-Hybrid]

Just to be safe, get a Walbro 255 LPH. I got one for just piece of mind and besides it's only like $80 or $90 shipped from Honda-tech or Ebay...

[CivicR]

Since you are running Hondata and bigger injectors I would say no. There is no reason to add a pump since you dont have a need for raising the fuel pressure. You already add the additional fuel with bigger injectors and a longer duty cycle. Just watch you duty cycle in case you go to high and need to step up to the next larger set of injectors.

[InfamousGSR]

I think RC 440's are good for 280whp? How can I check my duty cycle anyway?

I want to be able to run the stock FPR. I want to be able to drive to the tuner and have it tuned once. So its either the GSR pump or the walboro. Decisions decisions..

[CivicR]

Why dont you give Jim(JRCivic) here a quick call? Im sure he can answer your question for sure in a few seconds. If you do talk with him let us know what he says.

<font color="#a62a2a" size="1">[ May 05, 2004 01:41 PM: Message edited by: CivicR ]</font>

[InfamousGSR]

bump.

Need to know for sure. I dont want to spend $100 more on a aftermarket 1:1 FPR for a aftermarket pump when the stock can flow fine without getting a aftermarket FPR.

[HYREV2NR]

Try this... Get a fuel pressure guage & take the car for a spin. Just lay off in the pedal through the first three gears & see if the pressure drops or sustains. A friend of mine did this just recently & he's using the stock pump. This guy is a real experienced engine builder with a B18C1, JRSC @ 10 lbs., Hondata s200, Type R tranny all in an 92 EG hatchback. It's a real WRX killer!

[nitrorunner]

I would put the pump in.If your stock one cant handle it at high rpm you will lean out motor and have a melt down.Always safe to be on rich side.Then WHEN you get bigger injectors it will be able to handle the added fuel needs.More gas more spark =MORE POWER.The 225 pump is cheep as hell.Your little injectors may not need it?Get some 550 injectors and a 225 pump.Gut some exhaust.And let it breath.I try to always buy parts that have room to grow.So you arnt always upgrading parts.And a bench full of waisted money.Just my idea. [img]graemlins/thumbs_up.gif[/img]

[nitrorunner]

255 pump not 225.On the fuel pump do you know about running its own ground wire?Have fun,build big.Run hard. [img]wink.gif[/img]

[JRCivic]

I suggest you put the 255 lph pump in. Like you said: You only want to tune it once. The stock pump is right on the verge of being "not enough" of what you need, yet it might be OK. The 255 leaves no doubt... it will do more than a fine job and work half as hard at the OE pump.