C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Window switch, where to set...?

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Old Oct 14, 2011 | 12:14 AM
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llong66's Avatar
llong66
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Default Window switch, where to set...?

My car redlines w fuel cutoff at 5700, I have a shift light set at 5600 and will set my nitrous to shut off at 5500, does that sound safe and like good numbers given the factory fuel cutoff?
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Old Oct 14, 2011 | 10:45 AM
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Don't know how far ahead of fuel cutoff most people run their nitrous cutoff but 100 RPM sounds like enough to me.

However, I would set your shift light to come on before your nitrous cutoff. I can't think of a good reason to kill the nitrous before you shift.
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Old Oct 17, 2011 | 07:39 PM
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Only thing I can think of, is if its a manual car with MAP sensor and you lift off the gas to shift, it will momentarily go to a default lower map and pull out alot of fuel and the nitrous is still spraying... I never really heard of any problems doing it like that but you never know.

Automatic I'd spray til the shift point. 100-150 rpms or so before fuel cutoff is a good point to stop nitrous in the window switch. thats about what I did.
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Old Oct 17, 2011 | 08:15 PM
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Originally Posted by Orr89rocz
Only thing I can think of, is if its a manual car with MAP sensor and you lift off the gas to shift, it will momentarily go to a default lower map and pull out alot of fuel and the nitrous is still spraying... I never really heard of any problems doing it like that but you never know.
Don't forget that the WOT switch will cut off nitrous as soon as you lift off the gas to shift
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Old Oct 19, 2011 | 05:16 PM
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i set mine to cut 200 rpm be for fuel cut most window switch need at least a 200 rpm up or down for them to work other wise they think its glitch and wont shut off the spray
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Old Oct 29, 2011 | 01:45 AM
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Originally Posted by llong66
My car redlines w fuel cutoff at 5700, I have a shift light set at 5600 and will set my nitrous to shut off at 5500, does that sound safe and like good numbers given the factory fuel cutoff?
My window switch is set from 3,000 rpm - 6,000rpm, which is 200 rpm below my extended redline. I think you're in good shape!
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