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  1. #1

    Default 91 engine in 87 swap?

    I have a 91 gts with unfixable body damage. I found a '87 with a blown engine. Both are 5 speeds. How much different are the engines? How many different wiring connections will I encounter?

  2. #2
    Drove all the way to TN, for the hotel. CriScO has a reputation beyond repute CriScO has a reputation beyond repute CriScO has a reputation beyond repute CriScO has a reputation beyond repute CriScO has a reputation beyond repute CriScO has a reputation beyond repute CriScO has a reputation beyond repute CriScO has a reputation beyond repute CriScO has a reputation beyond repute CriScO has a reputation beyond repute CriScO has a reputation beyond repute CriScO's Avatar
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    Quote Originally Posted by beaver View Post
    I have a 91 gts with unfixable body damage. I found a '87 with a blown engine. Both are 5 speeds. How much different are the engines? How many different wiring connections will I encounter?
    Most of the connections, actually. Short answer, you can't use the 91 cylinder head without rewiring the harness and using the 91 ECU.

    What sub model is the 87? You'll run into different challenges with each, as ST, GT, and GT-S all used different engines that year.

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    The Coupe:
    - Custom SRI, external coil distributor conversion, MSD Blaster 2 coil, MSD 6a ignition, OBX 4-1 Header, 2.5" exhaust with Magnaflow muffler, Eibach springs, GT-S hub/rear disc conversion, Lots of shiny red engine paint, Ridiculously unnecessary 5" tach, Tons of fun useless switches and pretty glowing red lights, Currently sitting in the driveway with a snapped timing belt I'm too lazy to fix...
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  3. #3

  4. #4
    Drove all the way to TN, for the hotel. CriScO has a reputation beyond repute CriScO has a reputation beyond repute CriScO has a reputation beyond repute CriScO has a reputation beyond repute CriScO has a reputation beyond repute CriScO has a reputation beyond repute CriScO has a reputation beyond repute CriScO has a reputation beyond repute CriScO has a reputation beyond repute CriScO has a reputation beyond repute CriScO has a reputation beyond repute CriScO's Avatar
    CriScO has been to an annual Dragon Meet! CriScO has donated to the forums! CriScO helped get Grayscale's Celica towed from The Dragon in 2008. CriScO helped Azzy get to The Dragon in 2009. CriScO helped bring Chaos back to the Dragon

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    Quote Originally Posted by beaver View Post
    GTS to GTS.
    In that case I wouldn't recommend it. You'd actually be downgrading the 87, and that one would be the most difficult to rewire of all of them. The 87 GT-S has a 3S-GE, 2.0 with the wide angle performance head, while the 91 has the 5S-FE, 2.2 with the narrow angle (assuming this is a North American car). They have very different engine management systems. You won't just be able to switch a few connectors.

    Check out the threads here in the Forced Induction section about the 3S-GTE swap. It would basically be the same amount of work minus the parts about the turbo. It'd be less time and money to find a running 3S-GE to put in the 87.

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    The Coupe:
    - Custom SRI, external coil distributor conversion, MSD Blaster 2 coil, MSD 6a ignition, OBX 4-1 Header, 2.5" exhaust with Magnaflow muffler, Eibach springs, GT-S hub/rear disc conversion, Lots of shiny red engine paint, Ridiculously unnecessary 5" tach, Tons of fun useless switches and pretty glowing red lights, Currently sitting in the driveway with a snapped timing belt I'm too lazy to fix...
    The Hatch:
    - Custom SRI, External coil distributor conversion, Accel performance coil, Hayden transmission cooler, ASI dual-core aluminum ST165 radiator, Some shiny black engine paint, A few glowing red lights, Temporarily downgraded to daily driver status...

  5. #5
    Ultimo Miembro Fantástico Gigantesco 4thgenceli has a reputation beyond repute 4thgenceli has a reputation beyond repute 4thgenceli has a reputation beyond repute 4thgenceli has a reputation beyond repute 4thgenceli has a reputation beyond repute 4thgenceli has a reputation beyond repute 4thgenceli has a reputation beyond repute 4thgenceli has a reputation beyond repute 4thgenceli has a reputation beyond repute 4thgenceli has a reputation beyond repute 4thgenceli has a reputation beyond repute 4thgenceli's Avatar
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    Yeah what he said..
    Jasmine - 1989 GTS. GenIV 3s-gte, e153 LSD transmission, 3" turbo-back exhaust. SOLD

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