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Mike, I read your tranny tech article in DRO with great interest. I have a 3200 lb 1971 Chevelle with a 632 putting out 1100 hp The torque peeks out at about 860 and I too am running a PG with 1.76 gears. It has a 5500 rpm stall converter. I launch the car off the break at 5600 rpm and cannot seem to get the 60-foot times out of the 1.4's. I contacted TCI about installing 1.89 low gear and they felt it would improve by 60-foots and e.t.'s as well. When I called the tranny manufacturer (JW), they advised me that indeed the car would have a better 60-foot time, but that it would lay down during the 1-2 shirt and I would lose any gains from the better launch. Before I spend all my wife's money on a new gear set, is there any way to know which is the best way to go to improve the 60-ft times? Thanks! Randy Wourms Randy, This is another age-old question about the trans and rear end ratio, along with torque converter flash (stall) vs. car weight (load). These things must be in perfect balance. Too much gear and the tires will spin and run the engine right up through the torque without putting it to good use. If there is not enough gear stall, the engine will labor somewhat off the starting line, causing slow short times and possibly slow reaction times, too. In your case, some of the important information that we need to know has been left out. I get a lot of cases where the racer has a big (inch) engine and doesn't put enough gear in the rear end. A car set up with a Powerglide can be a problem. With a Powerglide there are only two gears, so there has to be more gear in the rear to get the car from one end of the quarter-mile to the other. Don't be afraid to rev up the old 632 a little, Randy. We use 1.89 and 1.96 sets in a lot of Super Gas and Super Comp cars. They work well, but first you should make sure the other areas are in good shape. Thanks for your inquiry, Mike
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