Choosing a stall converter
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The converter was an 1800-stall. I could, occasionally, chirp a tire from a dead stop. But i soon got curious | The converter was an 1800-stall. I could, occasionally, chirp a tire from a dead stop. But i soon got curious | ||
about the [b]converter slippage[/b]: Cruising along at 55 MPH, lift off the throttle, the RPM instantly dropped 200 RPM. Ease back into it, it came back up by 200 RPM. In later years, I came to learn that this is typical of most stock GM converters, though I doubted, and still doubt, that that converter was stock. | about the [b]converter slippage[/b]: Cruising along at 55 MPH, lift off the throttle, the RPM instantly dropped 200 RPM. Ease back into it, it came back up by 200 RPM. In later years, I came to learn that this is typical of most stock GM converters, though I doubted, and still doubt, that that converter was stock. | ||
| − | + | But then I tried it the other way: stomping the gas, RPM climbed another 200 RPM. Did that mean a total of 400 RPM | |
of slippage? I lifted off. Yes, a total slip at WOT of 400 RPM. Again, fairly typical it turns out. | of slippage? I lifted off. Yes, a total slip at WOT of 400 RPM. Again, fairly typical it turns out. | ||
| − | + | Lesson learned: normal slip of torque converters. Also applies to lockup style when not locked. | |
Combo 2: '78 Camaro LG3 ( 145-HP 305 ) TH350, swapped stock 1200-stall for B&M TorkMaster 2000 converter, 3.08:1 | Combo 2: '78 Camaro LG3 ( 145-HP 305 ) TH350, swapped stock 1200-stall for B&M TorkMaster 2000 converter, 3.08:1 | ||
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