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Fuel Pump for N20 kit

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Old Apr 25, 2019 | 10:31 AM
  #1  
chevyss2008's Avatar
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Default Fuel Pump for N20 kit

I have a new LS3 in my 2000 WS6 and a new Walbro255 was installed 2 years ago. Im going to run Nitrous Outlets kit and plan on spraying 100-150. Do I need to swap the fuel pump out for the Walbro450? Im installing the PSN-1 which will shut the system off if the AFR gets too lean. I think the check valve in the my current pump is not working as it should...It fires right up in the morning but after driving and going into the grocery store etc its hard to start back up, I have to try 2-3 times before it will start...I think it looses pressure after sitting? Im going to put a pressure gauge on it this weekend and see if the pressure drops slowly and just sort of hangs out, or drops after a few minutes....I heard this was a common issue on the 255...
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Old Apr 25, 2019 | 11:58 AM
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how much power are you making NA? The 255 with the hotwire is good to about 650 wheel hp.
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Old Apr 25, 2019 | 12:00 PM
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Depending on the Dyno, its between 500-550 at the wheels.
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Old Apr 25, 2019 | 12:02 PM
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Watching the Vid of Dave going over the Promax set up...Im debating on that and the innovate LC-2 and the PSN1 with NOS mini....It would be nice to keep everything the same brand...I think cost are pretty dang close one them. And Thanks again for ALL the info and help on the kit for my car! I sent the part number to my installer after your emails earlier today.
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Old Apr 25, 2019 | 05:04 PM
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Originally Posted by chevyss2008
Watching the Vid of Dave going over the Promax set up...Im debating on that and the innovate LC-2 and the PSN1 with NOS mini....It would be nice to keep everything the same brand...I think cost are pretty dang close one them. And Thanks again for ALL the info and help on the kit for my car! I sent the part number to my installer after your emails earlier today.
Right on! Let me know if you need anything else!
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