walbro 400lph fuel pump.

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From: Jefferson City, MO

What other upgrades are needed to run just one of these pumps in tank? Do I need to do any wiring upgrades? Thinking this may be a great pump for my nitrous build.

Mar 10, 2014 | 10:27 PM

#23

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From: Colorado Springs, CO

You would have to upgrade the bulkhead, racetronix has all the parts pretty cheap.

http://www.racetronix.biz/itemdesc.a...WH-017&eq=&Tp=
http://www.racetronix.biz/itemdesc.a...WH-029&eq=&Tp=
http://www.racetronix.biz/itemdesc.a...CS-028&eq=&Tp=

Mar 11, 2014 | 08:18 AM

#24

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From: Jefferson City, MO

Quote:

Originally Posted by LT1RAY

So all I would need then is the Walbro 400lph fuel pump and those three things you listed above and I'd be good to go? If so, not bad at all for under $200.00.

Mar 11, 2014 | 11:14 AM

#25

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Quote:

Originally Posted by Rise of the Phoenix

So all I would need then is the Walbro 400lph fuel pump and those three things you listed above and I'd be good to go? If so, not bad at all for under $200.00.

Not quite...refer to the following page for everything you need from Racetronix (chart near the bottom)

http://racetronix.com/press-release/...ing-harnesses/

In addition to the parts from Racetronix, ideally you should convert to a return system with an aftermarket regulator mounted near the rails

Mar 11, 2014 | 11:26 AM

#26

Marc 85Z28

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Quote:

Originally Posted by Rise of the Phoenix

What other upgrades are needed to run just one of these pumps in tank? Do I need to do any wiring upgrades? Thinking this may be a great pump for my nitrous build.

As stated before you'll need the GT280 bulkhead (and wiring) and a proplerly designed return system. The 3 parts linked above are offered by Racetronix in a single kit that's less expensive than buying everything individually. The pump isolator will need the bottom 1.5" cut off. You can retain the jet pump system by modifying the pump.

Mar 11, 2014 | 11:35 AM

#27

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Quote:

Originally Posted by Marc 85Z28

You can retain the jet pump system by modifying the pump.

Do you have more info on this? This is the first time I have heard that this is possible

Mar 11, 2014 | 11:37 AM

#28

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From: Jefferson City, MO

Quote:

Originally Posted by 1999Black_Z28

Got a link to an affordable aftermarket regulator?

Is this still do-able with just the Walbro 400 in tank pump and the Racetronix hotwire kit?

Last edited by Rise of the Phoenix; Mar 11, 2014 at 11:58 AM.

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Mar 11, 2014 | 11:58 AM

#29

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From: USA

Quote:

Originally Posted by Rise of the Phoenix

Got a link to an affordable aftermarket regulator?

there are a lot to choose from:
Mallory
Aeromotive
Edelbrock
Magnafuel

If I had to buy a new one I would likely buy the SX Performance 15404

Mar 11, 2014 | 12:01 PM

#30

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From: Jefferson City, MO

Quote:

Originally Posted by 1999Black_Z28

there are a lot to choose from:
Mallory
Aeromotive
Edelbrock
Magnafuel

If I had to buy a new one I would likely buy the SX Performance 15404

Thanks. Would it be a terrible idea to not go return style and just do the in tank Walbro 400 with the Racetronix hotwire upgrade?

Mar 11, 2014 | 12:10 PM

#31

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Quote:

Originally Posted by Rise of the Phoenix

Thanks. Would it be a terrible idea to not go return style and just do the in tank Walbro 400 with the Racetronix hotwire upgrade?

I know people who have done it with success but Racetronix says it will overpower your stock regulator. This could lead to premature pump failure and/or issues at idle.

I decided to go with a return system because it gives you the option to boost reference your fuel pressure

Mar 11, 2014 | 12:30 PM

#32

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From: Jefferson City, MO

Quote:

Originally Posted by 1999Black_Z28

Thanks for the help. Remember, my setup is a nitrous application. Only reason I posted in here is because this pump seems like it would be a great alternative to going with the Racetronix pump/hotwire kit because this way gives me more room to grow.

Mar 11, 2014 | 01:13 PM

#33

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From: Colorado Springs, CO

Quote:

Originally Posted by Rise of the Phoenix

So all I would need then is the Walbro 400lph fuel pump and those three things you listed above and I'd be good to go? If so, not bad at all for under $200.00.

You would need a return line as mention above.

Quote:

Originally Posted by 1999Black_Z28

Why not? Those are the same parts I listed.

Quote:

Originally Posted by Marc 85Z28

Racetronix does not offer a kit using the 267 pump, only the the 340lph pumps. With that being said, the only difference would be the internal wiring which could be cut and spliced together.

Mar 11, 2014 | 01:27 PM

#34

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Quote:

Originally Posted by LT1RAY

Why not? Those are the same parts I listed.

Sorry Ray, you're right. It just seems like I bought a lot more than 3 items...lol

Mar 11, 2014 | 01:36 PM

#35

mufflerguy

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I am going to run one of the E85 pumps (450lph?) on gasoline with the aeromotive pump controller so its not running all out while cruising. Should be more than enough for my LM7/S400 build.

http://www.jegs.com/i/Aeromotive/027/16306/10002/-1

Mar 11, 2014 | 01:36 PM

#36

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From: Colorado Springs, CO

Quote:

Originally Posted by 1999Black_Z28

Sorry Ray, you're right. It just seems like I bought a lot more than 3 items...lol

Haha, I thought there might have been something else needed.

Mar 11, 2014 | 01:43 PM

#37

Marc 85Z28

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Quote:

Originally Posted by 1999Black_Z28

Do you have more info on this? This is the first time I have heard that this is possible

No different than the 255 that Racetronix modifies. Racetronix uses a threaded fitting, but the factory presses the fitting in, so why not do the same? Carefully cut the small brass barb out of the stock pump. DO NOT pry or pull on it. Drill a 11/64" hole in the top of the Walbro pump, opposite of the pump outlet, symmetrical to the pressure relief port - make sure no plastic drops into the pump. You only need to drill about 1/8" deep to breach the plastic. Press the brass barb into the hole - I used a 1/8" deep well socket. I have a few pics that I can post later.

Quote:

Originally Posted by LT1RAY

Racetronix does not offer a kit using the 267 pump, only the the 340lph pumps. With that being said, the only difference would be the internal wiring which could be cut and spliced together.

Pump? Nobody said anything about including a pump. You can purchase the bulkhead, vapor connector, and hotwire harness as a single kit: http://www.racetronix.biz/customkiti...?kc=FPWK-017WX

Last edited by Marc 85Z28; Mar 11, 2014 at 01:49 PM.

Mar 11, 2014 | 01:48 PM

#38

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Quote:

Originally Posted by Marc 85Z28

No different than the 255 that everybody modifies, INCLUDING Racetronix. Racetronix uses a threaded fitting, but the factory presses the fitting in, so why not do the same? Carefully cut the small brass barb out of the stock pump. DO NOT pry or pull on it. Drill a 11/64" hole in the top of the Walbro pump, opposite of the pump outlet, symmetrical to the pressure relief port - make sure no plastic drops into the pump. You only need to drill about 1/8" deep to breach the plastic. Press the brass barb into the hole - I used a 1/8" deep well socket. I have a few pics that I can post later.

Pump? Nobody said anything about including a pump. You can purchase the bulkhead, vapor connector, and hotwire harness as a single kit: http://www.racetronix.biz/customkiti...?kc=FPWK-017WX

Mar 11, 2014 | 01:58 PM

#39