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question on window switch with dual stage setup safety

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Old 09-29-2002, 03:11 PM   #1
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Default question on window switch with dual stage setup safety

one of the reasons i bought the dual stage setup was becuase it wouldnt be as much nitrous going into the engine all at once. I have a window switch for it and when i was thinking about it... The first time it comes on it would go 75, then 75 more a little later in the rpms. But when i change gears they will both come on at the same time basically defeating the purpose.

what i was wondering was if it would be safer to run one 75shot through the window switch and run another 75 shot without a window switch and spray that one through the shifts so that when i shift gears it would still be only 75more nitrous.

here is a really basic "schematic" i made up to show how I was originally planning on having it wired (copy / paste link, if it looks kindof funny you may have to save the picture to hard drive and then open it up from there so it will scale it down.) http://www.geocities.com/bigworm271/dualstage.JPG

Please ignore my crappy skills at making those as im a CS major and not an EE major lol <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

so which way do you guys think would be safer?

Thanks
Bryan

<small>[ September 29, 2002, 04:12 PM: Message edited by: really slow truck ]</small>
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Old 10-01-2002, 08:57 AM   #2
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Default Re: question on window switch with dual stage setup safety

I couldnt open your schematic. But anyways, let me see if I have this straight? On the first scenario are you saying you want to run a window switch or two window switches? like have the first 75 kick in at 3000 and then the second 75 kick in at 4900 and then both shut off a hundred or so rpm before shift point?
To do that I believe you will need two window switches or a device capable of switching two seperate items. And as far as spraying both stages after the shifts..thats ok..youll be in the rpm range, after launching, that you will want to keep both stages activated. At that point traction will not be an issue and your rpm will be high enough that large tq spikes will not be a concern.

For the second scenario...its about the same as the first...except you will spray a 75 shot through the shifts. But again...after launch and the second stage kicks in....it will likely never drop out again except during the shift.

I think this is what your where asking? And also I dont own an auto and have never raced an auto with nitrous so I may be talking out my ***. Just wanted to get the conversation started for you <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
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Old 10-01-2002, 09:21 AM   #3
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Default Re: question on window switch with dual stage setup safety

ahh nice <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

i was talking about using one window switch, one relay, and the power wire to the solonoids would be split in two and each of those would have a switch on them so i could individually switch each stage. When i talked to Harlan he said the only way to use one window switch with two stages was if you only used one relay with it as well

if the fact that I am that high up in the rpm range makes it not matter as much I will keep both stages off during the shift.

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Old 10-01-2002, 09:21 AM
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