LS2 fuel pump upgrade? Z06 pump?
Thread Starter
Burning Brakes
Joined: Jun 2003
Posts: 846
Likes: 105
From: Knoxville TN
LS2 fuel pump upgrade? Z06 pump?
I have tried searching this some. I know it's a direct swap from what I've read but have a few questions.
1) Do I need to upgrade the harness? Like the one racetronix sells..
2) Is it worth it? These 2 threads I ran across make it seem like it's not. https://www.corvetteforum.com/forums...-question.html https://www.corvetteforum.com/forums...-ls2-pump.html
3) Should I just move on up to a Walbro 450? But then I read that the factory regulator won't work properly with the 450..
Need help please!!
1) Do I need to upgrade the harness? Like the one racetronix sells..
2) Is it worth it? These 2 threads I ran across make it seem like it's not. https://www.corvetteforum.com/forums...-question.html https://www.corvetteforum.com/forums...-ls2-pump.html
3) Should I just move on up to a Walbro 450? But then I read that the factory regulator won't work properly with the 450..
Need help please!!
Safety Car
Joined: Nov 2007
Posts: 4,436
Likes: 875
From: Bay Area CA
I have tried searching this some. I know it's a direct swap from what I've read but have a few questions.
1) Do I need to upgrade the harness? Like the one racetronix sells..
2) Is it worth it? These 2 threads I ran across make it seem like it's not. https://www.corvetteforum.com/forums...-question.html https://www.corvetteforum.com/forums...-ls2-pump.html
3) Should I just move on up to a Walbro 450? But then I read that the factory regulator won't work properly with the 450..
Need help please!!
1) Do I need to upgrade the harness? Like the one racetronix sells..
2) Is it worth it? These 2 threads I ran across make it seem like it's not. https://www.corvetteforum.com/forums...-question.html https://www.corvetteforum.com/forums...-ls2-pump.html
3) Should I just move on up to a Walbro 450? But then I read that the factory regulator won't work properly with the 450..
Need help please!!
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Burning Brakes
Joined: Nov 2009
Posts: 1,114
Likes: 42
From: California
Where did you pick yours up?
Any idea how much power it will support?
Thread Starter
Burning Brakes
Joined: Jun 2003
Posts: 846
Likes: 105
From: Knoxville TN
I am boosted now, left it in and added the ECS Stage 1..
Race Director
Joined: Mar 2011
Posts: 13,262
Likes: 3,151
From: SW Florida
2021 C6 of the Year Finalist - Modified
Since both the LS2 and the LS7 fuel systems operate at 58 PSI head pressure, the pressure being supplied to the injectors is a non-issue ... No increase in actual pressure from one pump to the other.
I believe the only real difference between the LS2 and LS7 fuel pump is the max flow rating.
I believe the only real difference between the LS2 and LS7 fuel pump is the max flow rating.
Le Mans Master
Joined: Dec 2004
Posts: 5,493
Likes: 809
From: West coast CA
Back in 2010 or so I ordered a new GM fuel pump for my 2006 C6 Coupe (LS2). I received a Z06 pump. It believe it even had a sticker that read "Z06/XLR" on it.
I was told by the vendor (a GM dealer) that the original pump was either on backorder or was no longer available, and the Z06 pump was a standard replacement.
Physically, the two pump assemblies appear identical. It works fine.
The only noticeable difference was that the new pump was a little noisier.
I was told by the vendor (a GM dealer) that the original pump was either on backorder or was no longer available, and the Z06 pump was a standard replacement.
Physically, the two pump assemblies appear identical. It works fine.
The only noticeable difference was that the new pump was a little noisier.
Safety Car
Joined: May 2006
Posts: 3,696
Likes: 493
From: Potomac MD
I think the difference between the LS2 and LS7 pump is the LS7 pump flows about 10% more and takes another amp or two in current (say 10 vs 11 amps). Racetronix use to have a little flow chart on their site that showed the difference. Also the early cars had a 0 to 240 ohm gas gauge whereas the 2007 and later are 240-0 gas gauges.