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Tach Question #779923 08/21/10 08:47 PM 08/21/10 08:47 PM
Joined: Aug 2010 Posts: 33 PA D dumbdog70 OP member
dumbdog70 OP member D Joined: Aug 2010 Posts: 33 PA	Just got a new Sunpro Super TachIII installed it today. Four wires straight forward easy hookup but it does not work. When i start the car tach reads 2500 and when you rev the engine tach wont go past 4000. those readings are inaccurate. Im running a Mallory 6AL ignition. Of course their tech line is closed. Am I overlooking something? Wires are black=grounnd white=lights red=hot w/ign on green=tach wire on ign box

Re: Tach Question [Re: dumbdog70] #779924 08/21/10 09:04 PM 08/21/10 09:04 PM
Joined: Apr 2010 Posts: 1,216 Under My Car Mopar_Country pro stock
Mopar_Country pro stock Joined: Apr 2010 Posts: 1,216 Under My Car	You may need an 8920 adapter, has something to do with the voltage. You might find help here: http://www.msdignition.com/forum/

Re: Tach Question [Re: Mopar_Country] #779925 08/22/10 07:02 PM 08/22/10 07:02 PM
Joined: Jan 2005 Posts: 124 Lebanon, TN B bronzegtx member
bronzegtx member B Joined: Jan 2005 Posts: 124 Lebanon, TN	Do you have it set to 8 cyl? If it is on 4 or 6 cyl it will also do that. The setting is on the back of tach.

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