I have recently installed a Broader Performance Forward Manual Valvebody on my 4r70w while retaining the stock torque converter. The transmission sits behind a mild 351w and will be used for Street and some trips down the track. I was wondering if anybody here had knowledge of when I should lock the converter up going down the track. My previous knowledge states you should shift - lock converter - unlock converter - shift - repeat but my fellow enthusiast pointed out that trying to lock up the converter under high acceleration and high speed could cause the damage to the torque converter or worse which is why his tune does not lock up the converter under that kind of load. However his is 3600 stall in a c5 corvette. Would any one care to shed more light on this theory? I just don't want any part of the transmission joining me in the car. Thanks.
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