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post #1 of 4 (permalink) Old 07-24-2012, 02:01 PM Thread Starter
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Tach

My Goat is an automatic.
On the tach there's an adjustable red pointer and the yellow one registers RPM

what's the deal?
thanks as always
Tk
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post #2 of 4 (permalink) Old 07-24-2012, 02:40 PM
 
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The adjustable needle is there for giggles. Technically it's a movable redline indicator. Can be used for shift points for mpg.

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1966 Pontiac Lemans Convertible
389 tri power
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post #3 of 4 (permalink) Old 07-24-2012, 03:55 PM
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Correct. It's there to set your shift point RPM so that you can tell at a glance when the needles meet. Mine is set at 6k on the '65.....when I used to race the car, I never had time to look at the tach, though....just shifted when the valves floated. You could set it at 3200-3500 and use that shift point to save fuel.....
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post #4 of 4 (permalink) Old 07-24-2012, 03:58 PM
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I have mine set to 6k as well, but it rarely ever sees it.
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  Pontiac GTO Forum > The 1964-1974 Pontiac Tempest, Lemans & GTO > 1964-1974 Tempest, Lemans & GTO General Discussion

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