ninjette.org - View Single Post

choneofakind · September 15th, 2018, 03:01 PM

You're way overthinking this.

Sequential boxes are meant to change gears faster. Instead of syncro's, they have a carefully designed set of dogs (basically large splines) cut into the drive collars and input gears that actually thrust (move axially) into each other when torque is applied between them. Aka... any slight amount of engagement will actually force the gear and drive collar to engage completely when a torque is applied. This means you only have to unload the gears with the clutch very briefly to disengage the current gear before clicking into the next gear and quickly letting the clutch back out. You can very casually make smooth, rapid shifts without causing any undue damage to the transmission.

This is why you've commonly heard drivers of race cars with sequential boxes report that their car shifts smoother the quicker they shift it. It's also a big part of why clutchless shifts are so easy and butter smooth on a motorcycle compared to a more traditional synchronized car transmission.

September 15th, 2018, 03:01 PM	#10
choneofakind ninjette.org certified postwhore Name: . Location: . Join Date: Feb 2011 Motorcycle(s): . Posts: Too much. MOTM - Feb '13, Feb '14	You're way overthinking this. Sequential boxes are meant to change gears faster. Instead of syncro's, they have a carefully designed set of dogs (basically large splines) cut into the drive collars and input gears that actually thrust (move axially) into each other when torque is applied between them. Aka... any slight amount of engagement will actually force the gear and drive collar to engage completely when a torque is applied. This means you only have to unload the gears with the clutch very briefly to disengage the current gear before clicking into the next gear and quickly letting the clutch back out. You can very casually make smooth, rapid shifts without causing any undue damage to the transmission. This is why you've commonly heard drivers of race cars with sequential boxes report that their car shifts smoother the quicker they shift it. It's also a big part of why clutchless shifts are so easy and butter smooth on a motorcycle compared to a more traditional synchronized car transmission.