i was wondering and pondering the other day and i have a question, why do manual trasmissions have way steeper first and second gears than an automatic, automatics have like 2.5:1 1st gear and manuals usually have 5.5:1 or steeper first gear, why is this? thanks guys

 

Automatic transmissions have a torque converter that manual transmissions don't. Without the torque-multiplying effects of the fluid flow through the torque converter, the manual transmission has to multiply torque with gear ratios.

 

What broke vet said.

 

The torque converter will multiply torque up to 1.9 to 1 like gear ratio. So with the usual 2.49 1st gear and the 1.9 torque converter, that gives you a close 4.4:1 1st gear!

 

Well actually the Mazda manual transmissions found in 1/2 tons only have a 3.30 to 3.90 first gear...

 

Torque multiplication from torque converters. Google it

 

i googled it and it does make sense now, thanks guys