Rise of the Phoenix

iTrader: (27)

I'm looking to buy the dual Walbro with Hotwire kit from Show Me Speed. I'll be adding a nitrous plate kit (spraying a max of 200) to my current setup, which is in my signature. Currently making 440 rwhp. Is everything that comes with that kit all I will need? Does it work with stock regulator and fuel line and do they fit in the stock bucket? I want to go this route because it gives me more room to grow over a Racetronix fuel pump. I appreciate the help guys.

5.slow99

Yes the kit comes with everything you need, however i made adjustments to the stock bucket by cutting two holes in the bottom so the pumps could stick out the bottom and allow more room to run the y block in the bucket. I would recommend removing the stock regulator and add a regulator or a switch to turn one on when spraying. Also by a metal y block instead of the plastic one so it will hold up longer. I would recommend a hotwire kit from them as well

Rise of the Phoenix

iTrader: (27)

Yeah, I'll run their Hotwire kit, as well as a Hobbs switch that turns on when I arm the system. If I do it that way, will I be OK with the stock regulator?

Racetronix

iTrader: (2)

The Racetronix single pump and harness will support 550-600RWHP depending on the motor's BSFC without using a pump booster.

Adding more pump capacity to overcome the limitations of the factory in-tank regulator is putting the cart before the horse. No matter how much more pump volume you add there will always be pressure drop at the fuel rail. This is because the regulator in the tank cannot compensate for line pressure drop at the front of the car. It would be best to add a front-mount regulator and SS -6 Teflon return line to stabilize the fuel pressure before upgrading your pump. Some simple push-lock adapters and AN fittings will fix this problem. This will also give you the option of having your fuel pressure referenced to manifold pressure.

If you are decided on installing a DP we offer the widest range of components at very competitive prices. Our fueling components and wiring solutions are more complete and well designed thereby reducing the amount of work required for assembly while improving performance and reliability.

Here is a list of parts required for the in-tank solution:
,,,,,

Here are some power harness components. The pressure switch and connector are not needed for N/A applications:

, , , ,,

Racetronix

iTrader: (2)

We have created a DP thread to specifically address questions about Racetronix DP components here:

https://ls1tech.com/forums/forced-in...omponents.html

Thanks!

HexenLord

Dual pumps for 600whp seems a bit overkill. A single Walbro 400 should handle 750whp and fit in the stock bucket with minimal modifications. They're also fairly cheap.

Rise of the Phoenix

iTrader: (27)

Will that pump work with the stock fuel line and fuel regulator? Also, what Hotwire kit would I need to go with it?

HexenLord

I believe that it'll connect to factory line, and regulator is irrelevant.

I don't understand the constant fascination with hotwire kits. This pump will provide enough fuel at 12v for your goals, the extra 1.5v from a hotwire kit would just be overkill.

Rise of the Phoenix

iTrader: (27)

I've just always heard a pump is only as good as the wiring that supplies the current, so if that's wrong then I apologize. I've always been told that the bigger pumps draw more current so a wiring upgrade is a must. Is this false info?

HexenLord

This is true, but it depends on the pump design. Some pumps are able to flow more with less amperage.


Not sure what the stock pump flows and how many amps it draws. At 58 PSI of fuel pressure, the Walbro 400 is still flowing 320 GPH at running at 14 amps, which is the same amount of amps the Racetronix pump draws at 58 PSI. You'll probably need to upgrade your wiring as you would with the Racetronix pump. I'm not sure on the specifics of the hot wire kits and whats different between them so I can't tell you which one you need. I'm a DIYer so I would just buy some 8-gauge wire and replace it all myself.

HexenLord

Just some info.

At 13.5v and 58 PSI, the Racetronix pump pulls 14 amps and flows ~285 LPH
At 12v and 58 PSI, the Walbro 400 pump pulls 14 amps and flows ~315 LPH
At 14v and 58 PSI, the Walbro 400 pump pulls 16 amps and flows ~368 LPH

Rise of the Phoenix

iTrader: (27)

Thanks a bunch for the info. Any idea how many volts the stock pump pulls? Mine is working harder than it should which is why I need to upgrade. Just want to make sure I have more than enough pump for the future. Right now a 150 shot is on tap.