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914World.com _ 914World Garage _ Subaru tach?

Posted by: marks914 Sep 25 2008, 05:15 PM

I have a customer that wants a tach for his suby conversion, does a regular aftermarket tach work weith the tach output on the ecu?
Thanks
Mark

Posted by: Amenson Sep 25 2008, 05:54 PM

The Suby '05 WRX/STi factory manual indicates that the tach output of the ECU is analog.

Scott

Posted by: DBCooper Sep 25 2008, 06:33 PM

Yes, most any aftermarket tach will work. Take a look at the VDO X-Treme tachs as a modern bells-and-whistles substitution. They have a 9000 rpm black faced data recording unit that uses a white numbers font that's close to the OEM look.

Posted by: marks914 Sep 25 2008, 08:25 PM

Thanks, it sounds like a 5v sq wave signal

Scott, good to see your car is coming together, we met at the MWC a few years back. My car is the green v8. Its also nice to see a Michigander with a 914.

Mark

Posted by: marks914 Sep 25 2008, 08:25 PM

Thanks, it sounds like a 5v sq wave signal

Scott, good to see your car is coming together, we met at the MWC a few years back. My car is the green v8. Its also nice to see a Michigander with a 914.

Mark

Posted by: charliew Sep 25 2008, 11:08 PM

Mark I'm a little confused, you made me a tach with a boost gauge awhile back for my suby conversion and I thought we discussed this then.
Charliew

Posted by: marks914 Sep 26 2008, 05:34 AM

Charlie,
Yes, but I never had any confirmation. I have done a few Suby tachs, and none of the cars are running yet.

is your car up and running?

Mark

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