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914World.com _ 914World Garage _ What to trust?

Posted by: Jetsetsurfshop Aug 2 2015, 06:22 PM

Shift light comes on at 5600 and the gauge says 6100. Which one is right and has anyone else ran into this?

Posted by: iamchappy Aug 2 2015, 07:55 PM

I would trust the tach i think my shift light is a little off also

Posted by: Dave_Darling Aug 2 2015, 11:59 PM

Tachs can be laggy, especially in lower gears. Found that out in the Honda; the tach was reading below red-line in 1st when the rev limiter cut in.

--DD

Posted by: stugray Aug 3 2015, 10:49 AM

Any chance you are using a MSD with a tach-adapt?

I do and my tach bounces now and seems to lag a little

Posted by: Valy Aug 3 2015, 11:54 AM

Trust the one that you tested to work correctly.

Posted by: Jetsetsurfshop Aug 3 2015, 02:16 PM

Not running a MSD right now. I did switch the pills and received about the same data. Off by 500 RPMs.
One of the mechanics at my parents shop has a digital test light and I think it shows the rpm range on it. Maybe that will answer my question.

Posted by: mbseto Aug 3 2015, 04:30 PM

Shift by ear.

Posted by: Dave_Darling Aug 3 2015, 09:19 PM

Rev it until the engine blows, then back it off just a hair.

--DD