What happens when the engine produces more torque than the transmission can handle?
What happens when the engine produces more torque than the transmission can handle?
By absolutely necessary, we mean the point at which the engine produces more torque than the transmission can handle. The end result is often broken shafts, bent forks and worn synchros.
What do the gears do in a transmission?
Inside the transmission, an input shaft, intermediate shaft and output shaft use an assortment of gears with different teeth counts to establish the transmission ratios.
How much HP can a stock power stroke have?
The owner was running a set of 238/100 hybrids, which is fine, but an off-the-shelf programmer was being used for tuning. The added timing and pulse width that’s ideal (and needed to make power) on truck’s equipped with stock injectors is way overkill when the injector size has more than doubled.
What is the RPM drop between gear shifts?
Close-ratio transmissions produce less RPM drop between gear shifts. In the above examples, an 8,000 RPM shift from first to second would result in a drop in engine speed to 6,770 RPM with the close-ratio transmission or 6,670 RPM with the wide-ratio transmission. Maybe not a big deal on the 1-2 shift, but look at the 3-4 shift.
Can a stock transmission be used in a race car?
The easiest part of the whole transmission choosing equation is this: You can’t use a stock transmission in a race car. Period. Unless you want your crew to have to clean up the remnants in your lane and shut down the track cleaning up all your spilled oil, that is.
By absolutely necessary, we mean the point at which the engine produces more torque than the transmission can handle. The end result is often broken shafts, bent forks and worn synchros.
Inside the transmission, an input shaft, intermediate shaft and output shaft use an assortment of gears with different teeth counts to establish the transmission ratios.
Why does a wide ratio transmission have a close ratio?
The engine speed at an 8,000RPM shift would drop to 6,220 RPM in the close-ratio example or to 6,000 RPM on the wide-ratio transmission. Depending on the shape of the engine’s power curve, the RPM difference may mean that the engine is down a measurable amount of power on the gear shift. So why aren’t all transmissions close ratio?
