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LTX and LSX Putting LT1's, LS1's, and their variants into Third Gens is becoming more popular. This board is for those who are doing and have done the swaps so they can discuss all of their technical aspects, including repairs, swap info, and performance upgrades.

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Old 03-04-2006, 10:38 AM   #1
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Join Date: Apr 2004
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Car: 88 GTA - White
Engine: Was L98 - Now LS1 Powered
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88 Speedo what LS1 Tach Output?

Just got HPTuners and ready to start turning off some stuff and getting speedometer and tach corrected, etc.

What is the correct number to plug in for the output pulses to work with the 88 tach? Current setting if 40K, not sure if we should double or divide by 2.
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Old 05-07-2006, 12:11 PM   #2
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Car: '83 Camaro
Engine: LS1
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Quote:
Originally Posted by tlove
Just got HPTuners and ready to start turning off some stuff and getting speedometer and tach corrected, etc.

What is the correct number to plug in for the output pulses to work with the 88 tach? Current setting if 40K, not sure if we should double or divide by 2.

I don't know about HP Tuners but in EFF Live you change the 6 to a 12.
For 2 pulses, use N= 6 < Stock
For 1 pulse, use N=12

Calibrating the TACH for V8 HOW TO? - EFI Forum
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Old 05-07-2006, 12:11 PM
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