Topic: Converting tach signal on factory gauge cluster

[alwayzbroken]

Does anybody know if it is possible to get the tach to read properly when putting a gauge cluster from a V6 into a 4cylinder? I assume it isn't but I have been surprised before.

[Duffil]

I wouldn't think so, since you have 2 extra cylinders firing. maybe if you made a custom circuit board and put it inline...

[Toymin8r]

I believe there is a way to adjust this on the gauge itself.  You will need to remove the gauge from the cluster to do it.

[88_Pathy]

If it has one coil I don't see why it would differ. Right?

[BigMike]

http://www.dakotadigital.com/index.cfm/page/ptype=product/product_id=127/category_id=287/home_id=59/mode=prod/prd127.htm

[Duffil]

for the clicky impaired:

The SGI-8 Tachometer Interface Unit is designed to allow a factory tachometer to function accurately after performing an engine swap to an engine with a different number of cylinders or tach signal. If you are swapping out a V-6 for a V-8 and you need to recalibrate the tach signal from the V-8 to make it read accurately on the factory V-6 tachometer, the SGI-8 will do the job. The SGI-8 is capable of recalibrating tachometer signals for nearly any engine swap combination.