Thirdgen fuel pump in 4th gen tank?
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Joined: Apr 2012
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From: san diego
Car: 85 IROC
Engine: ls1
Transmission: t56
Axle/Gears: ls1 rear with 3.23
Thirdgen fuel pump in 4th gen tank?
Swapping to 4th gen tank. I have a 255lph in my thirdgen metal tank now. Can i use the same pump in the 4th gen tank? Or do i need to buy a different one. They look very similar, im slighty positive it will be fine. Just wanted to ask incase someone has already been down this route.
Thanks.
Thanks.
Joined: Sep 1999
Posts: 4,353
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From: NJ
Car: 92 Firebird
Engine: 4.8 LR4
Transmission: T56
Axle/Gears: 3.45 9 Bolt
Re: Thirdgen fuel pump in 4th gen tank?
What year 4th gen tank? That makes a big difference. I am not familiar with the LT tanks, but you can't use it in the LS, plastic, tanks
Joined: Sep 2003
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From: Pittsburgh PA
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: MWC 9” 3.00
Re: Thirdgen fuel pump in 4th gen tank?
You can make just about any walbro 255 style pump fit the ls plastic style tanks. The pumps may have different filter locations which may require drilling bottom of bucket.
Joined: Sep 1999
Posts: 4,353
Likes: 308
From: NJ
Car: 92 Firebird
Engine: 4.8 LR4
Transmission: T56
Axle/Gears: 3.45 9 Bolt
Re: Thirdgen fuel pump in 4th gen tank?
Maybe you can, but it's, in my opinion, not good advice as you lose all the benefits of the bucket design. I did the road course in my car with less than 3 gallons of fuel without a hiccup, you're not doing that without the integrity of the bucket.
Joined: Sep 2003
Posts: 25,895
Likes: 429
From: Pittsburgh PA
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: MWC 9” 3.00
Re: Thirdgen fuel pump in 4th gen tank?
Well no details on service were given. So dont say it cant fit when it can
plus i have no had noticeable issues when i had dual walbros in the bucket with the bottom sides drilled. It still picked up low fuel fine. Road handling on street but never road raced tested. And thats without venturi
plus i have no had noticeable issues when i had dual walbros in the bucket with the bottom sides drilled. It still picked up low fuel fine. Road handling on street but never road raced tested. And thats without venturi
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Re: Thirdgen fuel pump in 4th gen tank?
You should use a fuel bucket designed for the 4th gen plastic tank. You can change the fuel pump in certain situations such as the Racetronix upgrade. The fuel pump has to fit the bucket, and the wiring has to integrate with the plug at the top of the fuel bucket. You can't splice wires inside the tank. I had quite a challenge when I changed the fuel level sensor on my fuel bucket.
https://www.thirdgen.org/forums/ltx-...pump-woes.html
https://www.thirdgen.org/forums/ltx-...pump-woes.html
Thread Starter
Member
Joined: Apr 2012
Posts: 105
Likes: 1
From: san diego
Car: 85 IROC
Engine: ls1
Transmission: t56
Axle/Gears: ls1 rear with 3.23
Re: Thirdgen fuel pump in 4th gen tank?
Awesome. Thanks for the replies. I dont want to drill the bucket, the buckets the main reason im doing the tank swap,lol. I guess new pump it is. Better now while the tanks out anyway.
thanks for the help
thanks for the help
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Joined: Sep 2003
Posts: 25,895
Likes: 429
From: Pittsburgh PA
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: MWC 9” 3.00
Re: Thirdgen fuel pump in 4th gen tank?
You should use a fuel bucket designed for the 4th gen plastic tank. You can change the fuel pump in certain situations such as the Racetronix upgrade. The fuel pump has to fit the bucket, and the wiring has to integrate with the plug at the top of the fuel bucket. You can't splice wires inside the tank. I had quite a challenge when I changed the fuel level sensor on my fuel bucket.
https://www.thirdgen.org/forums/ltx-...pump-woes.html
https://www.thirdgen.org/forums/ltx-...pump-woes.html
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