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spike_africa · 04-19-2008, 07:53 AM

You only need the window switch with a manual so it shuts off the nitrous and fuel when you are shifting (regardless of if you powershift or not). Because when you shift and the engines rpm go to the limiter it cuts fuel and you dont want the nitrous and fuel mixture in the manifold when it does this as it can backfire and blow your manifold up. I have had two rev limiter backfires. None were bad because i have a window switch and only one did anything and that was popping my air filter off. If its a manual you need the window switch so you dont have to worry about hitting the rev limiter or spraying below 3,000rpms.

If you were an auto you wouldnt need it as you spray through the shifts and you would have a free hand to flip the nitrous on over 3k rpms.

04-19-2008, 07:53 AM	#22 (permalink)
spike_africa Administrator Join Date: Sep 2004 Location: Orlando,Florida Posts: 6,957	You only need the window switch with a manual so it shuts off the nitrous and fuel when you are shifting (regardless of if you powershift or not). Because when you shift and the engines rpm go to the limiter it cuts fuel and you dont want the nitrous and fuel mixture in the manifold when it does this as it can backfire and blow your manifold up. I have had two rev limiter backfires. None were bad because i have a window switch and only one did anything and that was popping my air filter off. If its a manual you need the window switch so you dont have to worry about hitting the rev limiter or spraying below 3,000rpms. If you were an auto you wouldnt need it as you spray through the shifts and you would have a free hand to flip the nitrous on over 3k rpms. __________________ Dustin 2002 GT Mustang 5-Speed Drag Radials,Sprayed,Powershifted WOOO HOOOO!