Ideal torque vs engine speed curve

  • Automotive
  • Thread starter nu_hash
  • Start date
  • #1
nu_hash
10
0
Just a simple question of what the ideal torque/engine speed graph would like?

Also, could anyone direct me to a good website or book that would help me understand the following things better:
tyre slip/traction control
gear ratios and how they affect acceleration
 

Answers and Replies

  • #2
Pkruse
466
2
It is easy enough to Google them. All engine manufacturers publish technical data on their engines, including a number of curves. I’m normally most interested in the specific fuel consumption curves. That tells me at what rpm I want to run the engine for various loads. Normally, the emissions curves will also be optimized at approximately the same place. I look at the power curves and compare them with the fuel consumption curves. That tells me what sort of transmission I need. The torque curves don’t provide me much that I don’t get from the other curves, and are less useful.
 
  • #3
Kozy
141
7
There is no 'ideal curve' only ones optimised for different uses. One with lots of low down torque that drops off quickly would be ideal for a truck, but not a race car, and visa versa.

Here is a great link for explaining the effects of torque and gear ratios on acceleration with lots of great graphics. http://robotpig.net/__automotive/power-torque-thrust.php?page=1
 

Suggested for: Ideal torque vs engine speed curve

Replies
4
Views
189
Replies
7
Views
817
Replies
6
Views
2K
Replies
2
Views
268
  • Last Post
Replies
14
Views
807
Replies
6
Views
2K
  • Last Post
Replies
7
Views
688
Replies
17
Views
133
  • Last Post
Replies
2
Views
591
Top