good fuel pump?

[drag3]

hey guys...I'm new in here....I'm building a turbo teg right now and I need an inline fuel pump...Should I use an inline pump?>>how much do these cost???

[JRCivic]

Thanks Turismo... I appreciate the Bone.


------------------



'93 Civic Si H/B with B18C1, JRSC @ 8psi
Best 1320: 12.68 at 110 mph

[Civic TSI]

What if the difference between the Holley 255L and Walbro 255L. Is the Walbro better with high pressure ? And is there a difference between the two at 45 psi ?

------------------
To 24 PSI, and beyond !
HS Le Club

[MarkC]

No, no, no drag3! You have to use an inline pump. The Walbro pumps cannot flow the volume of fuel necessary at the elevated fuel pressures created by the FMU to feed your hungry turbo beast. Trust me, I tried a Walbro "high-pressure" 255L/hr in-tank pump and it leaned out on me at higher RPM. I was lucky I didn;t blow up. YOu need a Bosch 600hp inline pump. They are physically 3X the size of the Walbro pumps and will handle all your high-pressure fuel needs. You can mount it underneath your car very out of the way where it will not interfere with anything else and act totally transparently like any fuel pump should.

------------------
Mark - Darth Boost - Turbo Mafia
98 Pearl Black GS-R, DRAG Gen. 3 Turbo
13.2 at 114MPH (GTech/Pro w/Drag Radials)

[delsolbf]

in my opnion u should get an intank, inline is just another prob to have, i have the walbro 255l high pressure pump and am very happy with it

------------------
93 delSol LS Hybrid Turbo

[Turismo]

e-mail JR Civic if you need the Walbro 255HP.

[dragonballz]

Hey,

I got that Holley in-tank fuel pump. What psi is it good for? Has anyone actually done the calculations necessary to se the capacity of this pump or any other pump? I got an F-Max on a B18C1 w/ stock injectors. I want to run 9psi using a FMU and the Holley fuel pump. Am I asking for trouble?

------------------
1992 Old School Si Hatch
1995 Civic DX Coupe w/ Turbo B18C

[Beaver]

The std hipo walbro and the high pressure version both pump the same volume. The higher pressure pump puts out less volume as the pressure increases, so it's not worth a flip.
Neither pump is worth a damned. Get up to high rpm and high loads and you'd better drive by the fuel pressure gauge and be ready to pedal it fast.
The Bosch pumps are the only wat to go. Pay the price, install it, and you'll never need to worry about fuel delivery again.

[rjaffey]

I think the Holley in-tank unit is just a rebadged Walbro pump.

Both Walbro pumps move less volume as the pressure rises. The standard 255lph Walbro pump reaches nearly zero volume around 90 to 95psi while the high pressure version is running dry at around 110 to 115psi. I don't think either are up to the task for our applications when using stock injectors. However, both pumps can supply plenty of fuel at lower pressures.

Suppose your motor's putting out around 300HP. You'll need say, 120lph of fuel. At 60psi both pumps are moving over 180lph, and at 70psi the high pressure pump is still moving over 180lph while the standard pump is at just a bit over 110lph (a bit shy of what's needed). Anyhow, you get the idea.

[MTRS the 1st]

Hey Drag 3 Mark C knows from experience, and Beaver has it so right on the head it's ridiculous. Get the Bosch, it's not that hard to install and your beast will never be thirsty again.

p.s. I'm running one 2. If you want one e-mail me and I can give you the leads on 2 sources. (thanks Marky Mark)

Mac

------------------


The Import Avenger...hehe




[This message has been edited by MTRS the 1st (edited February 17, 2000).]