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There are two types - the old school mechanical switch that's just a generic industrial limit switch, and an electronic version that taps into the throttle position sensor, like this one:

http://www.zex.com/Pages/35/Programmable%20TPS.aspx

The limit switch comes with a generic bracket that you basically just screw down and then bend until it is in the correct position - not the most elegant solution but it works great. The TPS sensor is a little more high tech and you have a little more freedom about where to mount it, but it's not functionally better - just cooler.
 

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Discussion Starter · #4 ·
There are two types - the old school mechanical switch that's just a generic industrial limit switch, and an electronic version that taps into the throttle position sensor, like this one:

http://www.zex.com/Pages/35/Programmable TPS.aspx

The limit switch comes with a generic bracket that you basically just screw down and then bend until it is in the correct position - not the most elegant solution but it works great. The TPS sensor is a little more high tech and you have a little more freedom about where to mount it, but it's not functionally better - just cooler.
Just what I'm looking for. The Zex electrical unit, although expensive will be a lot easier to install and a lot more reliable than the mechanical unit.
thanks,
George
 

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I used the Jimmy Jams WOT switch/bracket setup with the custom LT1 throttle body bracket. They have one for the stock TB and the TPI/BBK TB for just $30.60 plus shipping. Very simple install with a tried and true mechanical switch.

http://jimmy-jams.tripod.com/activationswitch.htm
 
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