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Old 08-01-2006, 01:45 PM   #1
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Join Date: Mar 2004
Location: Winnipeg, Manitoba, Canada
Posts: 836
Car: '91 GTA
Engine: 400sbc
Transmission: th350
Axle/Gears: ford 9" with 3.75

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Running rich with nitrous

I am running 24lb injectors with my 305(long story)

Anyways, I have a scanner and when I do n2o runs with a 88hp shot(dry) the injector pulse width is 10.2.-10.4.

At what point in the injector pulse width does it go lean, the number I mean?
12? 13?

I am wondering b/c I want to run a 100hp or 125 shot and I am not sure if I have to go to a bigger n2o jet b/c I am still running rich. I am running the leanest fuel jet I have(82)

I guess I can just keep using the scanner and going bigger n2o jets but the info before I possibly blow a motor would be alot better!

Thanks for your help!
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'91 GTA - 400sbc,AFR195elim,280 xfi cam,1 5/8 shorty headers and single 4", LT1 intake, 3200 stall, 3.75 gears with a ford 9" and Zex dry nitrous.

*old 383 combo*11.00@125 - 1.55 60ft, 145hp n2o
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Old 08-01-2006, 01:45 PM
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