Carb LS1 fuel help
Thread Starter
Joined: Apr 2002
Posts: 2,029
Likes: 2
From: Ohio
Car: 88' Iroc-Z
Engine: LQ9
Transmission: T-56
Axle/Gears: 3.42
Carb LS1 fuel help
I'm trying to figure out how to adapt the original tpi fuel lines to run with a carb for an LS1. I assume it would be the same as in the tech article for FI to carb?
I always see people bashing the carb setup on an LS1 and I don't really care to hear it. It's not my car that this is being done to, I'm just helping a buddy out. He already had a street demon carb and got a good deal on an ls1 longblock. So it was more cost effective to use the carb setup. He's got $700 in the intake, ignition box, crank spacer, and flexplate. And buying a worked FI harness at $750or those whereabouts plus an intake/rail/injector/throttle body just doesn't make sense in his case.
I always see people bashing the carb setup on an LS1 and I don't really care to hear it. It's not my car that this is being done to, I'm just helping a buddy out. He already had a street demon carb and got a good deal on an ls1 longblock. So it was more cost effective to use the carb setup. He's got $700 in the intake, ignition box, crank spacer, and flexplate. And buying a worked FI harness at $750or those whereabouts plus an intake/rail/injector/throttle body just doesn't make sense in his case.
Supreme Member
iTrader: (5)
Joined: Jan 2002
Posts: 13,622
Likes: 5
From: Orland Park, IL
Car: 1984 Z28
Engine: SLOW carbed ls
Transmission: TH400 with brake, 8" PTC converter
Axle/Gears: moser 9" 4.11
Re: Carb LS1 fuel help
mallory 4309 and a tpi pump in the tank should do it. Might have to step up to a walbro 255 in tank, I'm not sure where the limits of a tpi pump are on a carb setup.
Thread Starter
Joined: Apr 2002
Posts: 2,029
Likes: 2
From: Ohio
Car: 88' Iroc-Z
Engine: LQ9
Transmission: T-56
Axle/Gears: 3.42
Re: Carb LS1 fuel help
thanks. His car is my old 87 Iroc it has a granatelli 255lph pump in it already. Is the Mallory better than the Barry Grant?
Supreme Member
iTrader: (5)
Joined: Jan 2002
Posts: 13,622
Likes: 5
From: Orland Park, IL
Car: 1984 Z28
Engine: SLOW carbed ls
Transmission: TH400 with brake, 8" PTC converter
Axle/Gears: moser 9" 4.11
Re: Carb LS1 fuel help
you need a return style regulator, he can run whatever one he wants. Aeromotive and barry grant both make quality units, i'd buy aeromotive before a BG setup IMO.
Senior Member
iTrader: (1)
Joined: Jan 2009
Posts: 959
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From: Houston TX
Car: 02 SS
Engine: 408 TT (1108rw-93/m1)6700rpm
Transmission: TH400(slipping)
Axle/Gears: 12bolt/3.42(whines😠)
Re: Carb LS1 fuel help
im going with aeromotive efi to carb. psi fpr, walbro 255 lph intank and -10 return
Thread Starter
Joined: Apr 2002
Posts: 2,029
Likes: 2
From: Ohio
Car: 88' Iroc-Z
Engine: LQ9
Transmission: T-56
Axle/Gears: 3.42
Re: Carb LS1 fuel help
so you guys are recommending this? http://store.summitracing.com/partde...5&autoview=sku
is there anything that will work as good for less money?
is there anything that will work as good for less money?
Supreme Member
iTrader: (5)
Joined: Jan 2002
Posts: 13,622
Likes: 5
From: Orland Park, IL
Car: 1984 Z28
Engine: SLOW carbed ls
Transmission: TH400 with brake, 8" PTC converter
Axle/Gears: moser 9" 4.11
Re: Carb LS1 fuel help
mallory 4309 like i already stated is cheaper.
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