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Re: [RC] Engine RPMs While Hauling - Sisu West Ranch

Assuming that you guys have an automatic transmission on the vehicles, the tachometers are essentially decoration. They are installed by the manufacturers for the "cool" factor.

The stall speed of most truck torque converters are about 3500 RPM. The result is that the transmissions are programmed to shift to keep the RPM below that speed. If you were (for some unknown reason) to use the 1 or 2 position on the shift lever and thus prevent the transmission from shifting the RPM could rise to 4000 or so. At this point you would notice a definite decrease in acceleration.

Moral: Put your truck in D and ignore the tachometer.

Ed & Wendy Hauser
2994 Mittower Road
Victor, MT 59875

(406) 642-9640



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[RC] Engine RPMs While Hauling, Val Nicoson
Re: [RC] Engine RPMs While Hauling, Sharon Levasseur