help need fuel pump???
Thread Starter
Racer
Joined: Apr 2011
Posts: 328
Likes: 12
From: frankfort new york
help need fuel pump???
consider thread closed bought new pump
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just got back from the tuners and they said i wasn't getting enough fuel that at 4500 rpm i was going lean and not keeping up fuel pressure.
question is what pump to get and where to get it??
i got a 2001 corvette longtube headers no cat's x-pipe borla exhaust
upgraded cam
60# injectors
vortech v-2 charger
nitrous halo
h.p. was 400 at 4500 where it couldn't keep up anymore and that was without nitrous anyone able to point me in a cheapish direction without upping the voltage to the pump... as i have read bad things from that with heat longevity reliability etc..
-----------------------------------------------------------------------------------------------------------------------------
just got back from the tuners and they said i wasn't getting enough fuel that at 4500 rpm i was going lean and not keeping up fuel pressure.
question is what pump to get and where to get it??
i got a 2001 corvette longtube headers no cat's x-pipe borla exhaust
upgraded cam
60# injectors
vortech v-2 charger
nitrous halo
h.p. was 400 at 4500 where it couldn't keep up anymore and that was without nitrous anyone able to point me in a cheapish direction without upping the voltage to the pump... as i have read bad things from that with heat longevity reliability etc..
Last edited by jb35007; Nov 30, 2014 at 01:47 PM.
Thread Starter
Racer
Joined: Apr 2011
Posts: 328
Likes: 12
From: frankfort new york
already stated NO voltage boosters.... hence no boost-a-pump!!!!!! all that does is increase the voltage to the fuel pump..... then creates problems down the road 50/50 chance and i don't wanna take a gamble..
Team Owner
Joined: May 2001
Posts: 36,836
Likes: 244
From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
Call Lonnie at Lonnie's Performance. He's got a good dual pump in-tank setup for C5s.
www.lonniesperformance.com/
www.lonniesperformance.com/
Melting Slicks
Joined: Jun 2012
Posts: 3,163
Likes: 6
From: Oceanside California
I have the LPE pump and racetronix harness on the way for my nitrous setup. It supports over 600hp and supposedly more with the harness. It's a direct swap, in-tank pump kit.
Currently at 430whp N/A on stock pump. Looking at a 150-200 shot of nitrous. Pump should support that size shot.
Currently at 430whp N/A on stock pump. Looking at a 150-200 shot of nitrous. Pump should support that size shot.
Team Owner
Joined: May 2001
Posts: 36,836
Likes: 244
From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
I have the LPE pump and racetronix harness on the way for my nitrous setup. It supports over 600hp and supposedly more with the harness. It's a direct swap, in-tank pump kit.
Currently at 430whp N/A on stock pump. Looking at a 150-200 shot of nitrous. Pump should support that size shot.
Currently at 430whp N/A on stock pump. Looking at a 150-200 shot of nitrous. Pump should support that size shot.
Melting Slicks
Joined: Jun 2012
Posts: 3,163
Likes: 6
From: Oceanside California
I was wondering about that.. Are you sure that the LPE pump is a walbro 255? I mean, I hope it is, but on the website it calls it a 220 I think. And stock is somewhere around 190 if I remember right. I was wanting the larger 255, but racetronix was ticking me off with their website. If you can confirm they are the same, that would make me feel better about what I bought.
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Safety Car
Joined: Jul 2004
Posts: 3,904
Likes: 29
From: Vancouver Washington
It's LPE #L710650197.
Team Owner
Joined: May 2001
Posts: 36,836
Likes: 244
From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
I was wondering about that.. Are you sure that the LPE pump is a walbro 255? I mean, I hope it is, but on the website it calls it a 220 I think. And stock is somewhere around 190 if I remember right. I was wanting the larger 255, but racetronix was ticking me off with their website. If you can confirm they are the same, that would make me feel better about what I bought.
I agree with you on the quality of the Racetronix website, it needs improving somewhat.
As Racetronix does not publish a phone number, you might try to e-mail them for further specific information. One thing I have learned about Racetronix over the last few years is that they are very professional and also honest. They do not play marketing numbers-games with any of their products.
Team Owner
Joined: May 2001
Posts: 36,836
Likes: 244
From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
Are you going to fabricate your own mounting? The in-tank pumps in C5 Corvettes from 1997 to early 2003, are of a unique design configuration that allows them to be mounted inside the fuel bucket, which serves to cool the pump by keeping it immersed in fuel at all times. That's why the GRJ420 was created by Walbro in the first place. Not just any pump will work.
Good luck.
Good luck.
Thread Starter
Racer
Joined: Apr 2011
Posts: 328
Likes: 12
From: frankfort new york
that only a 255lph pump it won't keep up with my fuel needs!@#$% guess i'll have to learn a new trick 
made a aftermarket pump work in my 3000gt hopefully i can make this one work
made a aftermarket pump work in my 3000gt hopefully i can make this one work
Team Owner
Joined: May 2001
Posts: 36,836
Likes: 244
From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
Pro
Joined: Feb 2006
Posts: 718
Likes: 7
From: Jacksonville , NC
I replaced the fuel filter with an early year C5 style without the fuel regulator, added the LPE in tank pump aded a regulator on the stock rail and added return line. I hold 60# of fuel pressure well north of 600RWHP with a A&A V-2 kit, Long tubes and Meth Injection.