differential swap or not

Newschooler · 12-24-2005, 03:45 PM

Hell, I'm a brand newbie on this board and I plan on buying a supra TT in a couple of years.

However I am not a newbie in mechanics so I couldn't resist to add some information here.
What kkiepvvessau wants to say, is that the differential does more than just turning the wheels. It also amplifies power just like a gear.

So lets say your engine devellop 200lb of torque at the flywheel. 200lb of torque isn't really alot to move a 3000lb and + car. Thats when the tranny and differential comes into play.

Lets say your first gear got a ratio of 3.0 and your differential a ratio of 3.1
The power your wheels will put on the ground will be: 3.0*3.1*200=1860lb/tq

Now that more likely to move your car. If you swap a lower gear ratio diff, you'll get: 3.0*3.7*200=2220lb/tq. Thats 360lb of torque to the wheels more right there just with that new differential. Not bad huh.

Anyway, I dunno if you all were aware of that, don't want to sound like a smart ass.

12-24-2005, 03:45 PM	#16
Newschooler Stock Join Date: Dec 2005 Posts: 3	Hell, I'm a brand newbie on this board and I plan on buying a supra TT in a couple of years. However I am not a newbie in mechanics so I couldn't resist to add some information here. What kkiepvvessau wants to say, is that the differential does more than just turning the wheels. It also amplifies power just like a gear. So lets say your engine devellop 200lb of torque at the flywheel. 200lb of torque isn't really alot to move a 3000lb and + car. Thats when the tranny and differential comes into play. Lets say your first gear got a ratio of 3.0 and your differential a ratio of 3.1 The power your wheels will put on the ground will be: 3.03.1200=1860lb/tq Now that more likely to move your car. If you swap a lower gear ratio diff, you'll get: 3.03.7200=2220lb/tq. Thats 360lb of torque to the wheels more right there just with that new differential. Not bad huh. Anyway, I dunno if you all were aware of that, don't want to sound like a smart ass.