C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

LT1 fuel pump

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Old Mar 28, 2007 | 06:00 PM
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Default LT1 fuel pump

Does anyone make a "better" fuel pump for the LT1 cars?

Mine leans out pretty badly at higher RPM's, part of the problem has been traced to the old pump. I need to replace it, does anyone make a better one, or is OEM replacement my best option?

I didn't see anything on Summit or Jegs...
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Old Mar 28, 2007 | 06:56 PM
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What are your mods, if any?
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Old Mar 28, 2007 | 07:35 PM
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Originally Posted by ScaryFast
Does anyone make a "better" fuel pump for the LT1 cars?

Mine leans out pretty badly at higher RPM's, part of the problem has been traced to the old pump. I need to replace it, does anyone make a better one, or is OEM replacement my best option?

I didn't see anything on Summit or Jegs...
check eklers they have a high volume, that i have in my 95 LT1 it cranks out 400 rwhp
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Old Mar 28, 2007 | 07:57 PM
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What about this. http://www.racetronix.com/Racetronix-C44-FPK.html
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Old Mar 28, 2007 | 08:44 PM
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What do you mean by leans out?
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Old Mar 28, 2007 | 08:49 PM
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Pressure drop?
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Old Mar 29, 2007 | 12:06 AM
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Originally Posted by ScaryFast
Does anyone make a "better" fuel pump for the LT1 cars?

Mine leans out pretty badly at higher RPM's, part of the problem has been traced to the old pump. I need to replace it, does anyone make a better one, or is OEM replacement my best option?

I didn't see anything on Summit or Jegs...

If your HP is level fairly stock then you may consider our RX-C44-FPA shown here for $99.99:

http://www.racetronix.com/RX-C44-FPKG-2.html



We make a kit for higher HP applications as well shown in the link above.
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Old Mar 29, 2007 | 01:24 AM
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Racetronix. Thorough kits.
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Old Mar 29, 2007 | 09:08 AM
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Sorry, made a newbie mistake. The car is a 383, mods in signature which I added below.

The AFR goes over 14.0 at about 4000 RPM, into dangerous territory.
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Old Mar 29, 2007 | 10:25 AM
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Originally Posted by BAM92
Racetronix. Thorough kits.
Agreed - just put one of their kits on my car, new fuel pump, harness, body ground upgrade.

VERY well put together kit.
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Old Mar 29, 2007 | 12:26 PM
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I need contact info for Racetronix - website only lists dealer phone#, I want to try to get a pump overnighted...

Anyone?
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Old Mar 29, 2007 | 12:28 PM
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Originally Posted by ScaryFast
I need contact info for Racetronix - website only lists dealer phone#, I want to try to get a pump overnighted...

Anyone?
I believe if you go back up to post 7, that is a direct link.
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Old Mar 29, 2007 | 01:16 PM
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Originally Posted by BAM92
Racetronix. Thorough kits.
Going to try one for myself... (just ordered one).
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Old Mar 29, 2007 | 02:07 PM
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Originally Posted by 93 ragtop
I believe if you go back up to post 7, that is a direct link.
I have the link, but have a few tech questions and want to expedite shipping so I'd like to talk with someone on the phone.

For example, what's the difference between the GSS340M and the GSS307M?
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Old Mar 29, 2007 | 05:42 PM
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Originally Posted by ScaryFast
I need contact info for Racetronix - website only lists dealer phone#, I want to try to get a pump overnighted..Anyone?
I saw them listed in the SUMMIT RACING catalog I received today.

Jake
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Old Mar 29, 2007 | 10:20 PM
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Originally Posted by ScaryFast
I have the link, but have a few tech questions and want to expedite shipping so I'd like to talk with someone on the phone.

For example, what's the difference between the GSS340M and the GSS307M?
I "think" the 307 is a lower pressure pump with the same volume as the 340. I just took a 307 out of mine because I thought it was bad but found out it wasn't. The Racetronix kit I bought had the 340 in it so in went the 340.
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Old Mar 30, 2007 | 12:30 AM
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Originally Posted by ScaryFast
I have the link, but have a few tech questions and want to expedite shipping so I'd like to talk with someone on the phone.

For example, what's the difference between the GSS340M and the GSS307M?
http://www.racetronix.com/307vs340.html

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