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> How to or do you know how to convert a tach, 3.2 conversion
736conver
post Oct 18 2005, 02:36 PM
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How can someone convert a tach to run on a different engine. I have a pre-84 911 Tach that I need calibrated to run on my 87 911 engine with DME.
I called North Hollywood and they want $180 to do it. Has anybody recalibrated one?
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Ferg
post Oct 18 2005, 03:25 PM
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Nope I just found a 87 tach, and bought it. They pop up on ebay.

Ferg.
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Cap'n Krusty
post Oct 18 2005, 03:25 PM
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QUOTE (736conver @ Oct 18 2005, 12:36 PM)
How can someone convert a tach to run on a different engine. I have a pre-84 911 Tach that I need calibrated to run on my 87 911 engine with DME.
I called North Hollywood and they want $180 to do it. Has anybody recalibrated one?

Obviously THEY have .................. The Cap'n
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736conver
post Oct 18 2005, 03:29 PM
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I have been checking ebay but nothing lately. I've call around to EASY, DC auto and some others but it seems they are all out.
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Ferg
post Oct 18 2005, 03:32 PM
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Call Matt at Carquip, he's a member here, and I bet they have one.

303 443 1343

Ferg
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736conver
post Oct 18 2005, 03:40 PM
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Thanks, I'm calling now.
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Matt Monson
post Oct 18 2005, 04:02 PM
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Brian,

Sorry but we've got a handful of 3.0l tachs, but no 3.2's. I don't think a 3.0l would work without recalibration...
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Ferg
post Oct 18 2005, 04:29 PM
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Bummer, ok then, call Dave at Dartauto

303-296-1188

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goose2
post Oct 18 2005, 06:25 PM
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Partial hijack for a related question: I'll be switching from a points/coil 3 pin factory CD box ignition on a 2.4 six...to a breakerless/coil 6 pin factory CD unit on a 3.0. Will I need to change tachs?
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Wild 6
post Oct 18 2005, 08:42 PM
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I run a modern 3.6L and an old original 914-6 tach. You need to get a MSD 8920 Tach Adapter. Its converts the modern digital signal back to a high voltage pulse.

Pelican Parts: $71
Summit Racing: $48
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joea9146
post Oct 18 2005, 09:13 PM
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Did u check the 911 classified ads on www.pelicanparts.com
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736conver
post Oct 19 2005, 11:02 AM
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Well I tried about all the Porsche resources for a gauges no luck. There is someone on ebay that sells them for $250 but I think at that price I will just have mine sent to NHS for $180.
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John
post Oct 19 2005, 11:22 AM
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member? what's a member?
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Did you try Oklahoma foreign? I have always had excellent results with them.

800-462-2446 ask for Gary
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736conver
post Oct 19 2005, 12:28 PM
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I just sent it off to NHS. Parts Heaven had one but it was $270. They all seem to be over $250 if you can find one.
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DrifterJay
post Oct 19 2005, 04:42 PM
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Crusty, get fucking real.... ahole....lol... (IMG:http://www.914world.com/bbs2/html/emoticons/sheeplove.gif)
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Steve
post Oct 19 2005, 09:15 PM
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How about silver star recycling??
I think I paid $100.00 at silver star.
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736conver
post Oct 19 2005, 11:27 PM
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I tried all the salvage places I could think of. Everybody was out or over $250.

And now its already been sent out to NHS. I know I will have a good refurbished Tach.
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914efi
post Oct 20 2005, 05:13 AM
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I've done a few of these by buying a cheapo tach from pep boys and installing the movement into the 911 case. There is minor cutting of the back of the case, but it works for about $30.00. Just make sure you get one with the correct sweep angle.
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kdfoust
post Oct 20 2005, 09:14 AM
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QUOTE (Wild 6 @ Oct 18 2005, 06:42 PM)
I run a modern 3.6L and an old original 914-6 tach. You need to get a MSD 8920 Tach Adapter. Its converts the modern digital signal back to a high voltage pulse.

Pelican Parts: $71
Summit Racing: $48

Is there any downside to the MSD device? I'm facing the same conversion any second now.

Later,
Kevin
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736conver
post Oct 20 2005, 10:46 AM
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QUOTE
Is there any downside to the MSD device? I'm facing the same conversion any second now.
Kevin I searched this over on the bird board and lots of guys were having problem with it.
it sounds like 914efi has a good idea about getting a tach from pep boys. I would of tried that but its too late now my gauge is halfway to NHS.
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