My stock tach is off
#1
TECH Fanatic
Thread Starter
iTrader: (31)
Join Date: Apr 2007
Location: Dover DE
Posts: 1,207
Likes: 0
Received 0 Likes
on
0 Posts
My stock tach is off
Sorry if this in is the wrong place as I saw no clear cut forum for it.
I just finished a LS1 swap and now my tach is off. About 70 RPM at idle and it grows to about 350 RPM at 5k (The PCM pulses are set right to drive a LT1 tach). I was courious if anyone knew if there was a dashpot on the tach circut board for fine tunning the adjustment. If not, is there anything else I can do to fix it?
Re'
I just finished a LS1 swap and now my tach is off. About 70 RPM at idle and it grows to about 350 RPM at 5k (The PCM pulses are set right to drive a LT1 tach). I was courious if anyone knew if there was a dashpot on the tach circut board for fine tunning the adjustment. If not, is there anything else I can do to fix it?
Re'
#4
TECH Fanatic
Thread Starter
iTrader: (31)
Join Date: Apr 2007
Location: Dover DE
Posts: 1,207
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by VinceTrifecta
There are tach output parameters that can be changed in the PCM. Perhaps tuning these values could make the tachometer more accurate?
Re'