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Old 10-03-2014, 09:33 PM   #237 (permalink)
changzuki
Changfa diesel + Suzuki
 
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Join Date: Jul 2012
Location: Northern, NY
Posts: 527

Centurion - '74 FIAT X1/9 Centurion Full Race DNA
Last 3: 143.5 mpg (US)
Thanks: 160
Thanked 463 Times in 235 Posts
After driving down and back to the Green Grand Prix, On I-81 and I-90, it was easy to hit Centurion's top speed of 65 mph and then the governor would take over - yawn! It seemed pointless to wind this little engine against that limit when it clearly was capable of higher speed if only the gearing were different.
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By the time I arrived home, it was decided this "gearing change" was going to happen!
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Working out the details during the trip:
- Swap out the three-rail 4-speed for a single rail 4-speed with the optional Laycock overdrive unit.
- Swap out the longer driveshaft for the shorter one.
- Possibly modify the shifter hole in the console.
- Run a couple of wires to the overdrive shift solenoid.
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So the itinerary was done and with the original set of 1982 plans on-hand, and a 1966 Spitfire base to work with, this seemed like it might be quite easy to do - - - yeah right!
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With the engine and transmission separated, it was time to first look everything over, starting with the Kubota flywheel.
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Nothing out of the ordinary there, and the adapter plate is perfect, so the newly acquired "vibration" I felt on the way home was from elsewhere. Will table that rabbit hole for now because it's:
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Time to find another transmission and get the party started!!
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~CrazyJerry

Last edited by changzuki; 08-03-2018 at 11:03 PM..
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