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Change Tach to electronic

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Old Aug 17, 2006 | 10:54 AM
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Default Change Tach to electronic

Does anyone know how to change my mechanical tach to an electronic one and retain the stock apperance?
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Old Aug 17, 2006 | 11:05 AM
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You can get a newer electronic tach and change the face, or there is a guy on the forum that will do the conversion for you.

Do a search and you should come accross him. I actually talked to him in the beginning of the year and he's nice to work with, and reasonably priced. I'm still unsure if I will use silver faced guages or do this as well.
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Old Aug 17, 2006 | 12:00 PM
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Originally Posted by Stumpdeisel
You can get a newer electronic tach and change the face,
I think I read a thread on this and the poster said that the two screw holes in the face were in a different pattern.
Damn Stump..... your 70' is beautiful..

Last edited by Bob Onit; Aug 17, 2006 at 12:29 PM.
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Old Aug 17, 2006 | 12:17 PM
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I just bought a used tach off of ebay and I have an autometer electric tach I am going to use to convert it. I will try and remember to document what I do.
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Old Aug 17, 2006 | 12:27 PM
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Thanks everyone!
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Old Aug 18, 2006 | 12:06 AM
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71White, check this guy out:

http://corvetteclocks.com/page17.html

SD
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Old Aug 18, 2006 | 10:49 AM
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Originally Posted by 71white
Does anyone know how to change my mechanical tach to an electronic one and retain the stock apperance?
OR ... you can change the distributor for a lot less trouble and similar $ (by the time you buy elec tach & have it refaced).

Brand new "Tach Drive" HEI (clone of GM 4-pin HEI but w/tach drive). Complete from coil thru mechanical tach drive to main drive gear. It will not fit under a 71 chrome ignition shield ... it will fit under a 75 shield. Part Number 9200TDR about $163 at Star Performance 1-800-625-9454.
http://www.starperf.com/tabloid/page_50.htm
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Old Aug 18, 2006 | 01:01 PM
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Thanks again!
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Old Aug 18, 2006 | 08:02 PM
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Default i did it

try this thread

http://forums.corvetteforum.com/show....php?t=1417096
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Old Aug 21, 2006 | 05:59 PM
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thanks,
Great post, very detailed.
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Old Aug 21, 2006 | 08:50 PM
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Originally Posted by jackson
OR ... you can change the distributor for a lot less trouble and similar $ (by the time you buy elec tach & have it refaced).

Brand new "Tach Drive" HEI (clone of GM 4-pin HEI but w/tach drive). Complete from coil thru mechanical tach drive to main drive gear. It will not fit under a 71 chrome ignition shield ... it will fit under a 75 shield. Part Number 9200TDR about $163 at Star Performance 1-800-625-9454.
http://www.starperf.com/tabloid/page_50.htm
What's the difference between Star Performance and one of these?

http://www.ecklers.com/product.asp?p...dept%5Fid=1285

http://www.ecklers.com/product.asp?p...dept%5Fid=1782
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Old Aug 23, 2006 | 07:39 AM
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Default 1960 mechanical to electronic tach

Does anyone have experience in what it would take to change to an electronic tach in a 1960.

I have a 327, Pertronix Ignitor 2 distributor, and the tach is driven off the back of the generator.
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Old Aug 23, 2006 | 10:52 AM
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Originally Posted by CaptainHook
RE: 47935 ... nothing but a $187 thinner wallet.

RE: 27518 ... it has better crossgear (even better than OE) ... and it's been test-fired, and supposedly the curve is "coordinated" ??? ... It appears to be made on a different casting from Star or 47935 (it appears to've been made by Davis Unified Ignition) all that at better than $400 above Star's. Your call if worth the $ diff.

Of course, both 47935 & 27518 have the "E-name" associated with 'em ... for whatever that's worth ... your call.

Last edited by jackson; Aug 23, 2006 at 10:57 AM.
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