LTX --> LSX Conversion Sticky
The Best V8 Stories One Small Block at Time
I just swapped a 2000 LS1 into a 1997 WS6 and the tach was not working correctly, it was reading close at idle but nothing above that.
I had to change the "High" and "Low" Tach Resolution settings in the tune from the stock ls1 settings of "6" to the value of "3". HP tuners software
Hope this helps anyone else looking for this answer.
With HP Tuners you set the Tach Resolution to 3 cause with the 24X LS1 Cranks it triggers it every 3rd one..24/3 = 8..that's why it works with analog V8 gauges. I've gotten some V6 Gauges to work correctly by setting it to 4.








