How much RWHP can a Walbro 255L pump handle??
03-22-2002, 12:05 AM
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How much RWHP can a Walbro 255L pump handle?? I am thinking I will be at ~590 rwhp with the TNT 150 jets, over my 530 with the 100s and stock fuel system. How much RWHP will the 255L support?
TIA!
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TIA!
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03-22-2002, 12:10 AM
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Re: How much RWHP can a Walbro 255L pump handle?? 255? Don t know....
307 = 600 ish I can t remeber exactly.....but the 340 is more around 750 ish......I think the 340 tested at just over 800......
307 = 600 ish I can t remeber exactly.....but the 340 is more around 750 ish......I think the 340 tested at just over 800......
03-22-2002, 12:14 AM
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Re: How much RWHP can a Walbro 255L pump handle?? All I have is a 255 liter per hour Walbro/racetronix pump with relay...it was good to 623 and was still fairly rich.
03-22-2002, 12:47 AM
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Re: How much RWHP can a Walbro 255L pump handle?? Ok I think I'll be safe with the 255. <img border="0" alt="[Burnout]" title="" src="graemlins/burnout.gif" />
<small>[ March 22, 2002, 12:50 AM: Message edited by: Onyx LS1 ]</small>
<small>[ March 22, 2002, 12:50 AM: Message edited by: Onyx LS1 ]</small>
03-22-2002, 03:58 AM
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Re: How much RWHP can a Walbro 255L pump handle?? Guys, Walbro makes basically two 255lph pumps, the GSS 307/315/317 (they differ in fuel connection) and the GSS340/341/342 (different fuel connections). The GSS307/315/317 are 255lph pumps. The GSS340/341/342 are also 255lph pumps, but they are high pressure pumps, meaning they can flow more fuel at higher pressures than the normal pumps. The numbers 307 and 340 are just model numbers, not flow numbers.
03-22-2002, 09:15 AM
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Re: How much RWHP can a Walbro 255L pump handle?? the article in the most recent gmhtp said the walbro was good to 700rwhp in the article about the ls1 with tnt wet kit. they made 524 and 600+torque at the wheels with it.
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03-22-2002, 10:38 AM
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Re: How much RWHP can a Walbro 255L pump handle?? Right Fireball....what you can get out of a 255 lph on a forced induction setup is not the same as a nitrous setup due to PSID (differential) across the injectors.
<small>[ March 22, 2002, 06:34 PM: Message edited by: 383LQ4SS ]</small>
<small>[ March 22, 2002, 06:34 PM: Message edited by: 383LQ4SS ]</small>
04-21-2002, 11:59 AM
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Re: How much RWHP can a Walbro 255L pump handle?? </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by y2khawk:
<strong>I began to run out of pump at 580RWHP and 70 psi of fuel pressure.
340 pump</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Did you have a Racetronix upgrade harness on this setup?
Jack <img border="0" title="" alt="[Cool]" src="gr_images/icons/cool.gif" />
Racetronix
<strong>I began to run out of pump at 580RWHP and 70 psi of fuel pressure.
340 pump</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Did you have a Racetronix upgrade harness on this setup?
Jack <img border="0" title="" alt="[Cool]" src="gr_images/icons/cool.gif" />
Racetronix
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Manufacturer / Distributor of Automotive Fuel Systems, Components & Electronics
Please support a Racetronix dealer near you for personalized service.
>WEB SITE<
04-21-2002, 01:03 PM
#12
Re: How much RWHP can a Walbro 255L pump handle?? </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Racetronix:
<strong> </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by y2khawk:
<strong>I began to run out of pump at 580RWHP and 70 psi of fuel pressure.
340 pump</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Did you have a Racetronix upgrade harness on this setup?
Jack <img border="0" title="" alt="[Cool]" src="gr_images/icons/cool.gif" />
Racetronix</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">hot wired 10 gauge, alternator pushed to 17V
<strong> </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by y2khawk:
<strong>I began to run out of pump at 580RWHP and 70 psi of fuel pressure.
340 pump</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Did you have a Racetronix upgrade harness on this setup?
Jack <img border="0" title="" alt="[Cool]" src="gr_images/icons/cool.gif" />
Racetronix</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">hot wired 10 gauge, alternator pushed to 17V
