Fuel pump?
Drifting
Joined: Nov 2004
Posts: 1,599
Likes: 1
From: Farmington, UT
While I don't know the exact specs I do know that the pressure is ~42-48 PSi. I also know that the pumps for the L98 and LT5 are the same internally...its just that the LT5 has two pumps rather than one.
Thread Starter
Racer
Joined: Nov 2004
Posts: 312
Likes: 0
From: Sacramento CA.
Thanks for responding Uly.. What started this whole question, a friend of mine lost his fuel pump on his 97 L98 and the week before @ cruiseFest in Colorado Springs I lost my primary pump. I have since don some investigating. They are different. The L98 pump is rated at 50PSI & 16 GPH, the pump for the LT5 is rated at 65PSI & 18 GPH.. The regulator brings the pressure down to the 42 – 48 PSI. Also from what I have found so far is that the suburban pump is not even close in pressure or volume. This car is a continual learning process. Thanks for taking the time to respond.
ßill
ßill
Drifting
Joined: Nov 2004
Posts: 1,599
Likes: 1
From: Farmington, UT
Thanks for responding Uly.. What started this whole question, a friend of mine lost his fuel pump on his 97 L98 and the week before @ cruiseFest in Colorado Springs I lost my primary pump. I have since don some investigating. They are different. The L98 pump is rated at 50PSI & 16 GPH, the pump for the LT5 is rated at 65PSI & 18 GPH.. The regulator brings the pressure down to the 42 – 48 PSI. Also from what I have found so far is that the suburban pump is not even close in pressure or volume. This car is a continual learning process. Thanks for taking the time to respond.
ßill
ßill
Airtex E3904 In Tank Electric Fuel Pump (J) (2 Fuel Pumps Required, ZR-1, DOHC) - you can get these at Autozone.
I wouldn't think the 50 vs 65 PSI or 16 vs 18 GPH would make a helluva lot of difference considering that the regulator is inline and drops it to what is required. Maybe I'm wrong...
I have no issues with fuel starvation. I still have my original pumps in my toolbox...there's nothing wrong with them. I misdiagnosed the problem...turned out to be my ECM...that was a few years ago.
