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Thread: NA Tach Conversion to 7M-GTE

  1. #1
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    Default NA Tach Conversion to 7M-GTE

    I'm converting my 89 7M-GTE to work with a 86 non-turbo shell. I'm having problems with the gas, temperature, oil and tach gauges. I was wondering if anyone has done the resistor mod to the NA tach? it's listed on this page http://www.4cefed.com/conversion.html

    Here's the picture of it: http://www.4cefed.com/tech/natachchanges.jpg
    Just wondering if anyone has actually done this, or thoughts on it before I try it.

  2. #2
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    Default Re: NA Tach Conversion to 7M-GTE

    Yeah a buddy of mine has converted a few, but it's literally plug and play if you just swap in a turbo tach, which is what I opted to do on my 89 when I swapped it..
    '86.5 Targa 5-speed Sport Package - '91 7MGE - JUNKED
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  3. #3
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    Default Re: NA Tach Conversion to 7M-GTE

    Resistor change was easy- took literally 5 minutes to do.
    My Over-budget, Over-deadline build: http://www.supramania.com/forums/sho...-come!-Stage-1... It now runs!

    NA-GTE swap, Megan EZ Street coilovers, ST swaybars, custom endlinks, Energy Suspension bushings, 18x9/18x10 FR500's, MAFT Pro in speed density, Denso direct-fit 680cc injectors on a brand new oem harness, Aeromotive Stealth pump, Driftmotion IC/ hardpipe setup, Kamainari whaletail, 3in. Magnaflow/Borla exhaust, chromoly flywheel, Spec 2+ clutch, aluminum driveshaft, Wiseco pistons, Cunningham rods, full flow oil cooling setup, Cometic 2mm HG, ATI super damper, ARP head, rod, main and flywheel fasteners, HKS style exhaust manifold, Precision 6266 CEA turbo, DG500 COP setup, GTmat sound deadening, new carpet. Coming soon: New leather, new sound, new paint.

  4. #4
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    Default Re: NA Tach Conversion to 7M-GTE

    Cool, thanks for the replies. I'm going to try the resistor change since I'm familiar with chip work. If it doesn't work I'll go source out a turbo tach.

  5. #5
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    Default Re: NA Tach Conversion to 7M-GTE

    It'll work.
    My Over-budget, Over-deadline build: http://www.supramania.com/forums/sho...-come!-Stage-1... It now runs!

    NA-GTE swap, Megan EZ Street coilovers, ST swaybars, custom endlinks, Energy Suspension bushings, 18x9/18x10 FR500's, MAFT Pro in speed density, Denso direct-fit 680cc injectors on a brand new oem harness, Aeromotive Stealth pump, Driftmotion IC/ hardpipe setup, Kamainari whaletail, 3in. Magnaflow/Borla exhaust, chromoly flywheel, Spec 2+ clutch, aluminum driveshaft, Wiseco pistons, Cunningham rods, full flow oil cooling setup, Cometic 2mm HG, ATI super damper, ARP head, rod, main and flywheel fasteners, HKS style exhaust manifold, Precision 6266 CEA turbo, DG500 COP setup, GTmat sound deadening, new carpet. Coming soon: New leather, new sound, new paint.

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