I ran the GT kit on my car for a year - used the 75 shot set up. No problems with it at all, easy to install and a lot of fun.

The window switch is a necessity in my opinion. Although you train the system to recognize WOT I wouldn't trust it alone. I had the system armed once and was staging by doing the prestage, then bringing the tach up to 1800 rpms while foot braking (I have an automatic) and the system read me at WOT in that situation and fired off.

After that I installed the window switch. I had mine set at 2400 rpm to open with no problem. Lidio at Alternative Auto said the lower limit is at 2,000 rpm - you don't want to start to spray that low, and waiting to 3,000 is too high to get the jump you need. Before I would hit the 60' the spray would come on. Somewhere on YouTube is a video where you can really see it come on just as I pass the tree - the front end lifts a second time after launch. When I find it I can link it here.

 

Yeah I figured on getting a window switch for sure. Its just alot safer and more consistent for bracket racing. I usually bring the rpms up to 2k on the line and I can 60 foot as fast as most gts. I definately agree with you on the range as to when the nitrous needs to kick in. What kinda ets were you getting with a 75 shot? And yeah that video sounds sick. Definately post it when you find it! Thanks for the help