Dodge Performance Data
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DODGE/DODGE RAM HORSEPOWER AND TORQUE CURVES
If you study these performance curves you will see two major benefits of gear splitting. As an example we’ll use the A727 or 518/618 Trans chart with a 5.9 24 valve engine and a 4.10 rear axle. Gears are multipliers of torque so at 2,000 rpm in 2nd —over the torque multiplier is 4.64 where without the Gear Vendors you would get into 1560 rpm in 3rd-direct at 4.10. The difference in engine torque is only 10lb-ft. But the difference in the multiplier is 4.64 vs. 4.10. That’s over 13% more working torque.
At this same moment horsepower at 2,000rpm is 170 instead of 125 @ 1560 which is over 36% more horsepower with all the reliability of you stock powerplant. To figure the drop in rpm or torque multiplier from on gear to the next calculate as follows: Final Drive Ratio of the gear you are shifting to , divide by the gear you are shifting from, minus 1, times 100. The difference from 1st over to 2nd is ever more dramatic. This is why if you are towing or loaded heavily, the best way to reliably improve performance is with the Gear Vendors Overdrive. It’s the same reason the big 18 wheelers have 2 and 3 speed auxiliaries for 10 to 15 gears.
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Drivetrain Specialists of Las Vegas
Las Vegas NV, 89102