2 pumps
Lot's people do it, with aftermarket rails and switching to a return style system they can support 1000 hp.
I'm running two, with the second pump activated with a hobbs switch when I get into boost.
I'm running two, with the second pump activated with a hobbs switch when I get into boost.
How does that work? I'd like some more information on that if you don't mind.
I have a hobbs switch set at 4 psi. I have it hooked connected to a vacuum manifold where it will see boost. It's a normally open switch, when it sees 4 psi it closes and turns the second pump on. I bought the wiring harness, it has two relays, the hobbs switch goes on the low side of one of the relays.
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From: Southern Colorado Front Range
I have a hobbs switch set at 4 psi. I have it hooked connected to a vacuum manifold where it will see boost. It's a normally open switch, when it sees 4 psi it closes and turns the second pump on. I bought the wiring harness, it has two relays, the hobbs switch goes on the low side of one of the relays.
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It's a pretty common setup. You can buy the whole thing ready to go from Lonnies Performance, or Nasty N8. It's 2 walbro/bosch 255 lph in tank pumps in parallel (they T or V together into the feed line). For simplicities sake you should at least buy a pre-manufactured wiring harness for two pumps, then you can buy two pumps and rig them together yourself if you don't want to buy the whole setup ready to go.
It's not recommended to run both pumps full time on the street, it's way to much pump. You can have the second pump activated by a Hobbs switch when you get into boost. Just make sure you get a real Hobbs switch and not a knock off, you need it to reliable.
Read this:
https://ls1tech.com/forums/fueling-i...ick-cheap.html
It's not recommended to run both pumps full time on the street, it's way to much pump. You can have the second pump activated by a Hobbs switch when you get into boost. Just make sure you get a real Hobbs switch and not a knock off, you need it to reliable.
Read this:
https://ls1tech.com/forums/fueling-i...ick-cheap.html
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Verdad Gallardo TECH Apprentice
iTrader: (5)
Joined: Dec 2007
Posts: 347
Likes: 0
From: Southern Colorado Front Range
It's a pretty common setup. You can buy the whole thing ready to go from Lonnies Performance, or Nasty N8. It's 2 walbro/bosch 255 lph in tank pumps in parallel (they T or V together into the feed line). For simplicities sake you should at least buy a pre-manufactured wiring harness for two pumps, then you can buy two pumps and rig them together yourself if you don't want to buy the whole setup ready to go.
It's not recommended to run both pumps full time on the street, it's way to much pump. You can have the second pump activated by a Hobbs switch when you get into boost. Just make sure you get a real Hobbs switch and not a knock off, you need it to reliable.
Read this:
https://ls1tech.com/forums/fueling-i...ick-cheap.html
It's not recommended to run both pumps full time on the street, it's way to much pump. You can have the second pump activated by a Hobbs switch when you get into boost. Just make sure you get a real Hobbs switch and not a knock off, you need it to reliable.
Read this:
https://ls1tech.com/forums/fueling-i...ick-cheap.html
I have a hobbs switch set at 4 psi. I have it hooked connected to a vacuum manifold where it will see boost. It's a normally open switch, when it sees 4 psi it closes and turns the second pump on. I bought the wiring harness, it has two relays, the hobbs switch goes on the low side of one of the relays.
Joined: Mar 2002
Posts: 2,032
Likes: 26
From: A Racetronix dealer near you...
Not at this time.
For what Lonnie charges for a complete system it is hard to justify a DIY setup really.
For what Lonnie charges for a complete system it is hard to justify a DIY setup really.
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Please support a Racetronix dealer near you for personalized service.
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I bought my double pumper assembly/harness from Lonnies, and its a nice piece, not something I would care to engineer/design myself, when its already done, and the price is right.
I agree. Its not worth trying to butch one up to save a few bucks. if you have the need for 2 pumps, Im willing to bet you have a little bit of time, effort, and money in your setup
I bought my double pumper assembly/harness from Lonnies, and its a nice piece, not something I would care to engineer/design myself, when its already done, and the price is right.
I bought my double pumper assembly/harness from Lonnies, and its a nice piece, not something I would care to engineer/design myself, when its already done, and the price is right.
I just put my dual pumps in from lonnie last week, The quality was great.
https://ls1tech.com/forums/fueling-i...ual-pumps.html
Any pics of the setup from Lonnies, I would definately like to see the final product before I dropped $600 bucks on the table. The few pics I've seen on the board just look like somebody took a jigsaw and chopped the the bucket up. The only other setup I saw that looked really decent was the APS kit. I'm not sure what's so hard about making/selling a wire harness for a dual setup if they are already making them for the single kits.
http://mycarpics.shutterfly.com/244
Brand new sending unit that I sent to lonnie. You can pull what you have in the tank and send him that if the bucket hasn't been changed, I had cut the bottom off my original bucket so I had to get a new one. Racetronix double pumper harness in the middle, hobbs switch on the right. There are 2 walbro's in the stock sending unit.
Brand new sending unit that I sent to lonnie. You can pull what you have in the tank and send him that if the bucket hasn't been changed, I had cut the bottom off my original bucket so I had to get a new one. Racetronix double pumper harness in the middle, hobbs switch on the right. There are 2 walbro's in the stock sending unit.