Turbo 400 to 200R4 trans Questions

brycenel · Jul 18, 2015

Thanks for the information. There is a lot of good help here. This will help a lot...Bryce

knucklebusted said: ↑

First, what rear gear do you have? If you don't have mid 3s, (3.42, 3.55, 3.73) an overdrive may be difficult to keep in the sweet spot.

Second, what trans is in your car now, long shaft or short shaft? A short shaft turbo 400 will be pretty close with a yoke change. A long shaft will require a new, longer driveshaft.

Third, make sure the builder will stand behind that trans in a heavy car with lots of torque.

Depending on converter, you may have to redrill the holes as most 200-4R converters are smaller. The lockup will reduce RPM. I think I got about 2 MPG better (11 to 13) but I don't really do a lot of highway driving lately. I tend to stay on country roads that let me run about 60 while driving spirited. Overdrive for me is about 32MPH per 1000 RPM

The 200-4R will give you better take off with a lower first gear to get your heavy car going. Overdrive will reduce RPM by 1/3 even if it doesn't improve mileage substantially.

I think the linkage for a column shift is an easy thing. The worst case scenario is probably going to be no L1 manually.
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Turbo 400 to 200R4 trans Questions

brycenel Bryce Nelson

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