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Will the racetronix 255 lph pump w/ hot wire kit be enough?

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Old 05-04-2015, 09:03 AM
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Default Will the racetronix 255 lph pump w/ hot wire kit be enough?

Will it be enough fuel pump for a 416 Ls3? They say up to 600 hp but I'm thinking I might be around 650. If not whats the easiest & most reliable way to install the aeromotive 340? Its a 2000 SS

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Old 05-07-2015, 07:42 PM
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A single 255 SAFELY will support mid 400's at the tire. Maybe a snidge more on the slightly less safe side. I would never say 600 at the tire would be achievable safely with a single 255 lph pump.
Old 05-08-2015, 02:01 PM
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Originally Posted by SpeedJunkee
A single 255 SAFELY will support mid 400's at the tire. Maybe a snidge more on the slightly less safe side. I would never say 600 at the tire would be achievable safely with a single 255 lph pump.
My stock pump was handling 400whp. I'm guessing I should be 500+whp on motor. Would like enough pump for 700whp though
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Old 05-08-2015, 02:26 PM
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What size injectors?

There are people who have pushed a 255 close to 600 to the wheels, but its typically in a very well balanced setup. Larger injectors allow you to run less fuel pressure which stresses the pump less and gives you a higher volume.
Old 05-08-2015, 06:32 PM
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Originally Posted by JoeNova
What size injectors?

There are people who have pushed a 255 close to 600 to the wheels, but its typically in a very well balanced setup. Larger injectors allow you to run less fuel pressure which stresses the pump less and gives you a higher volume.
Green top 42s for now. Thats rated at 43 psi too which would put the rating around 50 @ 58 psi. I'll see how it runs & if need be upgrade injector sizes
Old 05-09-2015, 05:59 AM
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One 255lph pump is not going to support that. This is what I would reccomend. It is very well priced and an awesome unit from a reputable vender here.

http://www.racetronix.biz/itemdesc.a...%2D510&eq=&Tp=
Old 05-09-2015, 07:17 AM
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I'm close to 600 rwhp with a Walbro 255 pump and hit wire kit and have no fuel issues whatsoever
Old 05-09-2015, 09:19 AM
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I made 570-580rwhp with it, mine is the prototype though.
Old 05-10-2015, 12:47 PM
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Originally Posted by HCI2000SS
I'm close to 600 rwhp with a Walbro 255 pump and hit wire kit and have no fuel issues whatsoever
I might just do that then. I looked at lonnies dual racetronix setup, thats a lil overkill for me right now & $650 I don't wanna spend.
Old 05-10-2015, 02:41 PM
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Originally Posted by flintwrench69
I might just do that then. I looked at lonnies dual racetronix setup, thats a lil overkill for me right now & $650 I don't wanna spend.
$650??

The dual 255lph pump setup is $210. From everything I have heard, read, researched and seen, one 255lph pump is only good to 400-450 ish RWHP. More than that and you are really stretching the pumps capacity. You do NOT want to skimp on your fuel system. It's not like deciding to go kind of cheap and going with Eagle rods instead of Oliver rods. Both of those will work, one is just more high dollar than the other. A fuel setup comes down to science. There's what is required for the amount of power you are running and then what you need. Do less than that and you starve your engine of fuel, costing you WAY more than a good fuel system.

If NOTHING else, before you decide, call Lonnie from Lonnie's performance or at least talk to a fuel vendor like Racetronix and ask them before you choose, if you don't want to take my advice.
Old 05-10-2015, 02:58 PM
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The 255 pump by itself may not be enough but with the hot wire kit you can get around 600 rwhp.
Old 05-10-2015, 03:28 PM
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Originally Posted by HCI2000SS
The 255 pump by itself may not be enough but with the hot wire kit you can get around 600 rwhp.
Do you have a link or reference for this? Never heard of a wiring kit making a pump able to physically output more. Not saying it's not true, just looking for some more info on this.

In my mind, the proper voltage sent to the pump should operate it normally and it is the limitation on the pump itself, not the wiring or voltage to the pump.
Old 05-10-2015, 04:12 PM
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Originally Posted by SpeedJunkee
Do you have a link or reference for this? Never heard of a wiring kit making a pump able to physically output more. Not saying it's not true, just looking for some more info on this.

In my mind, the proper voltage sent to the pump should operate it normally and it is the limitation on the pump itself, not the wiring or voltage to the pump.
Don't have a link but Lonnie's Performance sells the kit and it's very popular
Old 05-10-2015, 04:24 PM
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Originally Posted by HCI2000SS
Don't have a link but Lonnie's Performance sells the kit and it's very popular
I looked at Lonnie's Performance website and I didn't see any "Hotwire" kit. I saw lot of fuel pumps with wiring assemblies but the wiring seems like a standard wiring setup and again I don't see how that would improve the output of the fuel pump. The single fuel pumps are still using the 255lph fuel pump which again I'm not seeing anywhere where it says with a "Hotwire" setup it jumps the capacity up for the pump.
Old 05-10-2015, 04:50 PM
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Originally Posted by SpeedJunkee
I looked at Lonnie's Performance website and I didn't see any "Hotwire" kit. I saw lot of fuel pumps with wiring assemblies but the wiring seems like a standard wiring setup and again I don't see how that would improve the output of the fuel pump. The single fuel pumps are still using the 255lph fuel pump which again I'm not seeing anywhere where it says with a "Hotwire" setup it jumps the capacity up for the pump.
It's been a while, so maybe I'm wrong, but I swear I got the entire fuel pump along with the hat and whole assembly including hot wire kit from them.
Old 05-10-2015, 05:42 PM
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Originally Posted by SpeedJunkee
$650??

The dual 255lph pump setup is $210. From everything I have heard, read, researched and seen, one 255lph pump is only good to 400-450 ish RWHP. More than that and you are really stretching the pumps capacity. You do NOT want to skimp on your fuel system. It's not like deciding to go kind of cheap and going with Eagle rods instead of Oliver rods. Both of those will work, one is just more high dollar than the other. A fuel setup comes down to science. There's what is required for the amount of power you are running and then what you need. Do less than that and you starve your engine of fuel, costing you WAY more than a good fuel system.

If NOTHING else, before you decide, call Lonnie from Lonnie's performance or at least talk to a fuel vendor like Racetronix and ask them before you choose, if you don't want to take my advice.
Yes, $650. The dual pump module setup from lonnies, you send in your pump & they integrate a dual pump setup w/ hobbs switch. The dual pump setup link you posted will require some modification to the pump module. I may look into what's exactly needed to make that work. I was trying to find the most simple solution to upgrading the pump as I doubt most that do 427 & under stroker motors NA run or need a dual pump setup thats good for 1000 whp.
Old 05-10-2015, 05:50 PM
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Originally Posted by SpeedJunkee
Do you have a link or reference for this? Never heard of a wiring kit making a pump able to physically output more. Not saying it's not true, just looking for some more info on this.

In my mind, the proper voltage sent to the pump should operate it normally and it is the limitation on the pump itself, not the wiring or voltage to the pump.
The hotwire kit is more direct connection to the battery , higher voltage, heavier wire that causes the pump to spin faster. It may cause premature pump failure though is the downside. I wouldn't even think about upgrading just the pump without a hotwire kit. I noticed most of the pump upgrades on lonnies site includes a hotwire kit
Old 05-10-2015, 06:37 PM
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If you decide on doing this i will sell you new in the bag hotwire kit from racetronix, that i have laying around, might save you a couple bucks.
Old 05-10-2015, 07:50 PM
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Originally Posted by NnOoSsSs
If you decide on doing this i will sell you new in the bag hotwire kit from racetronix, that i have laying around, might save you a couple bucks.
Is it the FPWH-017? It's the newer kit w/ updated better flat plug that plugs into the fuel pump. Original were square
Old 05-10-2015, 08:25 PM
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Holy crap that's kind of a rip off if that's all it is. The dual in tank pump setup for $210 is good but the rest is really not anywhere close to that amount to do.

I currently have a dual in tank setup, with it plumbed to kick the second pump in off a HOBBS switch, direct lines from the battery to the pumps already. Besides the cost of the pumps, I have maybe $40 in the HOBBS switch, the wire, and the plumbing. It just does not cost that much (or should not). I bought thick gauged wire and good plumbing parts too, (it's not like I skimped).

I've got pics of my setup if anyone wants them posted, as you can have the exact same setup for WAY cheaper than $650.

FWIW, I still don't see running direct voltage to the pump gives it a stronger ability. Even with direct voltage as I am doing with 2 pumps, I certainly wouldn't consider rolling around with one pump and 600 RWHP, but again, if Lonnie says it's good, then I would trust his word.


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