I spoke with a guy tonight about building a 200-4R and he said something that kind of surprised me. Even if you run an auxiliary trans cooler, you should still run through the radiator connections as this helps to warm up the trans fluid to help the seals. If you start anew on a cool day (60� was his example), it takes the trans too long to warm up via just the auxiliary cooler. Anyone hear of something like this? What should minimum trans temp be? I think 200� is on the high end, but what's low and what's optimum?
I'm getting antsy to swap my M20 4-speed setup for a 200-4R but don't have a trans cooler in the radiator. I bought a B&M 24,000 GVW Super Cooler unit and now I'm told it won't warm up the trans fast enough?
He also said that the O/D won't improve mileage to any degree. Somehow I think reducing RPM's from 3000 or so at 75/80 to 2000 or so has to improve mileage - am I wrong here? Currently I'm running 2100 at 55mph. I find it hard to believe that I'm not using more fuel at 3000 RPM (75/80 MPH) than I am at 2100 (55 MPH). With the O/D, I can run the same 75/80 MPH at my current 55 MPH RPMs.
Dale McIntosh
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