I am looking into buying a window switch for my N20. The MSD window switch seems like the cheapest option, however the different RPM modules are expensive and you have to buy them in packages. I found this link where it tells you how to make a fully adjustable module for the MSD switch. For any of you electrical savvy Z-er's out there, I was wondering if this would work on our cars. It's cheap to make, but I don't want to go out buying all this stuff and have it not work. Tell me what you think:

Link:
http://www.corral.net/tech/powerplant/arm/

 

i'm Savvy...but not with electrical work, sorry

 

I went with the DynoTune Nitrous window/TPS switch. You don't have to buy pills b/c you can adjust the window switch to any RPM via the display, you can lock out 1st gear if you want, and you don't have to buy a separate TPS sensor. Cost is $149 and you don't have to modify it to work like the MSD. Look into it, it works great for me!