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View Full Version : Biggest shot on healthy stock fuel pump



gregrob
08-24-2009, 02:08 AM
My N20 Outlet plate kit is in the mail and I plan on spraying 150 shot eventually. (maybe even more).

For now though I'm wondering if 100-125 would be ok on the stock fuel pump.

It's going to be small cam only and bolt ons, and I am at 6,000+ ft elevation so I already use a lot less fuel, and make a lot less power than at sea level.

Who has sprayed on the stock fuel pump and how much?

FYI I plan on getting the racetronix kit but want to start getting it tuned and get used to the spray now.

Maybe install a FP gauge and just make sure it doesn't drop when spraying?

proace4
08-24-2009, 10:05 AM
I have the stocker in my car and I had to install an in line booster pump for the shootout because I would drop below the fpss. I was only spraying a 75 wet shot on a baby cam and bolt on car. Now if I even want to get on it I need to turn my in line pump... Oh and I have a fp gage.

96lt1m6
08-24-2009, 02:56 PM
I have the stocker in my car and I had to install an in line booster pump for the shootout because I would drop below the fpss. I was only spraying a 75 wet shot on a baby cam and bolt on car. Now if I even want to get on it I need to turn my in line pump... Oh and I have a fp gage.

this is odd, i have used a NX-150 shot on a stock GM fuel pump without any issues,FPSS has not been activated before car went from 14.1 to 12.6 a long time ago

proace4
08-24-2009, 04:38 PM
it never activated my switch i was just told to do it going off the fp gage. My car also has 200k miles on it so the stocker is probably just getting close to the end of life.

gregrob
08-25-2009, 02:58 AM
How about a Racetronix hot wire harness going to the stock pump to boost its output when the kit is armed. Anyone ever tried this?