NOS and Air/Electric Shifters? - Suzuki GSX-R Motorcycle Forums Gixxer.com

 
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post #1 of 7 (permalink) Old 04-06-2007, 08:21 AM Thread Starter
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NOS and Air/Electric Shifters?

When running nitrous (wet) with air shifters are there dangers with this as far as engine detonation? I'm spraying 60hp now but moving to 100hp. With this change I am also looking at getting an air shifter but I really don't know much about them. What can go wrong, how do I avoid that?
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post #2 of 7 (permalink) Old 04-06-2007, 05:33 PM
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Re: NOS and Air/Electric Shifters?

There really isnt much that can go wrong. The airshifter kills the engine for thousandths of a second, not really enough time for damge to occur. The shifter kills the coil side, so there is always fuel there. (Unless you do a double kill, killing both fuel and coil) but then, you have an expensive drag bike, so its setup properly anyways.
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post #3 of 7 (permalink) Old 04-06-2007, 11:03 PM Thread Starter
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Re: NOS and Air/Electric Shifters?

I was looking at some shifters from APK Developments and they told me that I need the nitrous to shut off during a shift. They told me that they are currently developing a new sifter that will do this, but I will be a few months untill it is ready. You really think that the shift would be quick enough that there will be no detonation?
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post #4 of 7 (permalink) Old 04-09-2007, 08:53 PM
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Re: NOS and Air/Electric Shifters?

Yes, you do not need to shutoff the nitrous during the shift. Its so instantaneous that the AFR (Air fuel ratio) would not rise, not to mention that the fuel is never shutoff. unless you are doing a dual kill.
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post #5 of 7 (permalink) Old 04-10-2007, 04:05 PM Thread Starter
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Re: NOS and Air/Electric Shifters?

Sounds good to me. When I get around to trying this, I'll let you know if I blow up. Thanks
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post #6 of 7 (permalink) Old 04-14-2007, 12:37 PM
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Re: NOS and Air/Electric Shifters?

If you run a dynojet powercommander III USB, you can buy a multifunction hub for it and have it control the nitrous activation. Using the hub you can activate the nitrous at a certain throttle % and at a certain RPM. I THINK that you can make it shut off at a certain RPM as well, like a window switch...... So if you shift at 12,000 then have the nitrous shut off just before that. But for that system to be accurate, you will need an MPS auto shift box that will shift for you at a certain RPM.
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post #7 of 7 (permalink) Old 04-14-2007, 12:39 PM
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Re: NOS and Air/Electric Shifters?

Sorry.......I just reread your post and noticed you said a WET system. I was describing a dry setup.
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