LS1 in a 3rd gen...what fuel pump?
#1
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Car: 92 25th anniversary edition
Engine: 305
Transmission: 700R-4
Axle/Gears: 2.73's
LS1 in a 3rd gen...what fuel pump?
is there a in-tank fuel pump that will work with a stock 3rd gen tank and float asm?? if so which one? already searched and found nothing other than use a 4th gen gas tank.
#2
Re: LS1 in a 3rd gen...what fuel pump?
I'm swapping a 5.3 into an 89, and I installed an AC Delco EP381 pump into the thirdgen sending unit last weekend. It's from the 96-98 vortec trucks, fits good and makes 60 psi in those trucks. I brazed Dorman 800-154 and 800-155 fitings onto the supply and return of the sending unit, and ran nylon lines and quick connects to a Corvette filter with built in regulator in the stock filter location. Looks good and should work well.
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Car: 88 Iroc ls1 swap
Engine: ls1
Transmission: 4l60e
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Re: LS1 in a 3rd gen...what fuel pump?
Get a racetronix fuel pump works great...255 lph about $100
#4
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Re: LS1 in a 3rd gen...what fuel pump?
you can use a 3rd gen Walbro 255 lph fuel pump, this is what I am running.
http://www.summitracing.com/parts/vp...t/model/camaro
http://www.summitracing.com/parts/vp...t/model/camaro
#5
Re: LS1 in a 3rd gen...what fuel pump?
Those are good choices to. I chose the ep381 because it's an AC Delco OEM reliable part, also plug and play fit, rated @ 50/60 gph (227 lph), and can be had for 50 bucks online. If your north of 400hp, or ever plan to be, you probably need one of the other pumps listed although I understand that they can be louder.
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Car: 1998 Trans/Am, 1989 RS Camaro
Engine: LS1, LQ9 6.0
Transmission: 4L60E, 4L60E
Axle/Gears: 2.73, 2.73
Re: LS1 in a 3rd gen...what fuel pump?
you can use a 3rd gen Walbro 255 lph fuel pump, this is what I am running.
http://www.summitracing.com/parts/vp...t/model/camaro
http://www.summitracing.com/parts/vp...t/model/camaro
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Car: 92 Firebird
Engine: Supercharged 6.0
Transmission: T56
Axle/Gears: 8.8 3.73
Re: LS1 in a 3rd gen...what fuel pump?
Those are good choices to. I chose the ep381 because it's an AC Delco OEM reliable part, also plug and play fit, rated @ 50/60 gph (227 lph), and can be had for 50 bucks online. If your north of 400hp, or ever plan to be, you probably need one of the other pumps listed although I understand that they can be louder.
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#8
Re: LS1 in a 3rd gen...what fuel pump?
That the ep381 is a walbro 190? Mine came in a delco box and has a/c stamped on it. Its the factory replacement pump for the early Vortec trucks which require around 60 psi at the fuel rail, including 454's and it was also used in Syclones and Typhoons. Most info I've read say's it's rated at 50/60 gph and will support up to 450hp, of course thats all internet hearsay. I hope I'm not spreading misinformation, but I believe it to be true.
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Car: 86 Camaro
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Re: LS1 in a 3rd gen...what fuel pump?
Delco doesn't actually make any parts- they buy them from other suppliers in Delco boxes... Walbro and Bosch probably make most of their electric fuel pumps..
#10
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Car: 92 25th anniversary edition
Engine: 305
Transmission: 700R-4
Axle/Gears: 2.73's
Re: LS1 in a 3rd gen...what fuel pump?
Yea I found out we use the Walbro 255 pumps at my work. The boss was not at the shop on the day I posted but now I know.
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Car: 1982 Z28
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Re: LS1 in a 3rd gen...what fuel pump?
I've been running a Walbro GSS340 high pressure pump from Racetronix, came in a kit that included everything needed to install it on a factory 3rd gen in-tank assembly. It's a gerotor type pump, not plastic turbine, and it's held up to a lot of abuse, starvation, and hard miles. Very quiet also.
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