87-89 Ford Mustang 4cyl Tachometer recalibration for use with 5.0
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Video demonstrating what needs to be changed on a 4 cyl tach to have it function when used on a 302 swap.
I used a 24k ohm resistor in place of the original.
90-93 cars will be slightly different. See 15:15
Prior video showing tach recalibration.
• 87-93 Foxbody Mustang ...
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Wow. Great informative video. Any chance you know what resistor to change on a 1985 tach? I want to put the svo 4cyl cluster into my v8 and would love to figure this out.
@Mustang5L5
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I do not what what resistor size for the pre-87 cars? But I was under the impression that the earlier tachs had a 4-6-8 selector on them to choose engine size. I could be wrong on that. Have you taken a look?
I noticed the needle on the 4 is bigger than the 8 do you know why? Thanks for the video.
@Mustang5L5
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The needles are the same. One of them has had the white indicator paint removed so it just looks different. In hand they are identical. I’ve swapped needles around a bit so not sure which needle was originally on what tach.