Wasupp guys just wanna ask what the diffence between those 2 fuel pump and which one is better to use thank
Jeff

 

lph = liters per hour

gph = gallons per hour

 

1 GPH Gallons Per Hour = 3.8 LPH Liters Per Hour

255 LPH = 67 GPH

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BigMoose &raquo;</TD></TR><TR><TD CLASS="quote">1 GPH Gallons Per Hour = 3.8 LPH Liters Per Hour</TD></TR></TABLE>

Anybody else already know this because public toilets usually say 1.0gpf/3.8lpf? lol

 

I got a related question, anyone know the "real difference" bettween the walbro 255lph an the 255lph Hp ( i know its high pressure but what kinda difference....) and couldnt the pressure jsut be increased via a adjustable FPR?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by R6E6I6D &raquo;</TD></TR><TR><TD CLASS="quote">I got a related question, anyone know the "real difference" bettween the walbro 255lph an the 255lph Hp ( i know its high pressure but what kinda difference....) and couldnt the pressure jsut be increased via a adjustable FPR?</TD></TR></TABLE>

The hp ones flow more fuel at higher fuel pressure compared to the non hp ones at high fuel pressure.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tony1 &raquo;</TD></TR><TR><TD CLASS="quote">Anybody else already know this because public toilets usually say 1.0gpf/3.8lpf? lol</TD></TR></TABLE>

Ahah yeah every time I see that on a toilet I can't help but think of the 3.8L supercharged GM engines that were in the Grand Prix.

 

weird

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by daveG &raquo;</TD></TR><TR><TD CLASS="quote">Ahah yeah every time I see that on a toilet I can't help but think of the 3.8L supercharged GM engines that were in the Grand Prix. </TD></TR></TABLE>

and i thought i was the only one lol

 

 

So which one gives better fuel lph or gph thanks

 

just buy the 255 HP (LPH) im sure you will never need more fuel than what it will deliver

 

I always wondered what the difference was between the standard and HP models too. Now we have an explanation, and a chart showing the difference, but would it really equate to much in the real world? I mean, when would it not be ok to use the standard 255lph?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by stealthmode62 &raquo;</TD></TR><TR><TD CLASS="quote"> I always wondered what the difference was between the standard and HP models too. Now we have an explanation, and a chart showing the difference, but would it really equate to much in the real world? I mean, when would it not be ok to use the standard 255lph? </TD></TR></TABLE>

When you make too much hp for a fwd car

 

I would say at around 500hp you should start looking into upgrading to dual intank Walbros. the 255 lph High pressure Walbro alone is good for up to 550hp safely on forced induction vehicles and 620hp in naturally aspirated engines.

If you are looking to produce more than that many 1000hp Grand National and Supras have run dual intank Walbros with no problems. We we thinking of making a kit with all the lines, fittings & wiring and pushing it but the flood at our shop has set us back a few months before we will be able to start developing parts like we had planned. 8+ feet of water will do that to you.

Being able to support 1000hp for $170 for just the pumps is an awesome deal.

We are a Walbro WD if anyone needs pump or if any of you are shop owners, contact me for great wholesale pricing. I have 8 pages of application listings & pricing.

thanks guys,
Gabriel

 

much cheaper than the $700+ Weldon Fuel pumps and just as reliable. Walbros are very reliable also and has been used time and time again in hundreds of thousands of cars.

I dont see many Weldons in street cars. 90% of the time its a Walbro

Just my $.02

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by daveG &raquo;</TD></TR><TR><TD CLASS="quote">

Ahah yeah every time I see that on a toilet I can't help but think of the 3.8L supercharged GM engines that were in the Grand Prix. </TD></TR></TABLE>



255 GPH, hahahaha. Imagine draining your tank in 2 minutes. I guess if you had to support 3000 hp you could one of these in your tank. If it really existed, I'd keep one of these pumps in the shop just to drain my tank quickly.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by stealthmode62 &raquo;</TD></TR><TR><TD CLASS="quote"> I always wondered what the difference was between the standard and HP models too. Now we have an explanation, and a chart showing the difference, but would it really equate to much in the real world? I mean, when would it not be ok to use the standard 255lph? </TD></TR></TABLE>

If you are running stock fuel pressure and running high boost the HP will be better cause it can flow more then the non-HP pump at the same amount of fuel pressure. Say you wanted to run a setup at stock fuel pressure and 25 psi of boost. That would make your fuel pressure 45+25=70 at full boost. At 70 psi of fuel pressure the 255lph flows 48gph vs the regular 255lph which flows 30gph. That's at 12volts though while the chart posted by extremepowerperformance is for 13.5volts.

 

Good info Blueshadow.

 

Gallons Per Flush