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Fox T-Bird/Cougar Forums

Technical => Engine Tech => Topic started by: turbotrav on January 29, 2012, 10:00:19 AM

Title: 86 XR7 Tach
Post by: turbotrav on January 29, 2012, 10:00:19 AM
So the 351 swap is proceeding. 

My tach is not going to work.  If you read here http://www.coolcats.net/modifying/4to8tach.html 

That basically says im hosed.  Does anybody know how to mod the 85-86 style?
Can I just swap to the 87-88TC style than do the mod.  Or can I swap in 88 Sport/XR7 V8 tach?  I kinda want to keep a working boost gauge.  So the V8 would be my last choice.

Thanks,

Travis
Title: 86 XR7 Tach
Post by: EricCoolCats on January 29, 2012, 11:28:02 AM
I don't recall anyone here trying to convert the 1985-86 tach to a V8 spec.
If it were me, I'd just swap out the 1987-88 style so you can keep the boost gauge and also modify it for V8 spec.
Title: 86 XR7 Tach
Post by: turbotrav on January 29, 2012, 06:45:07 PM
Quote from: EricCoolCats;379174
I don't recall anyone here trying to convert the 1985-86 tach to a V8 spec.
If it were me, I'd just swap out the 1987-88 style so you can keep the boost gauge and also modify it for V8 spec.

Yeah that makes sense.....off to NATO to find a 87-88 tach.

Thanks,

Travis
Title: 86 XR7 Tach
Post by: thewestie on January 29, 2012, 09:27:40 PM
Can I Use the signal from a MSD to make the tach work with the change from to 4cyl to 8?
Title: 86 XR7 Tach
Post by: EricCoolCats on January 29, 2012, 11:13:09 PM
That...is a good question. I don't see why not. Anyone else?
Title: 86 XR7 Tach
Post by: turbotrav on January 31, 2012, 08:38:10 PM
Got a 87-88tc tach coming. 

Thanks jangus.

Travis
Title: 86 XR7 Tach
Post by: TurboCoupe50 on February 04, 2012, 05:23:01 PM
Quote from: thewestie;379206
Can I Use the signal from a MSD to make the tach work with the change from to 4cyl to 8?

You'll probably need the 8910 or 8920 tach adapter, but I dunno for sure...
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