|
|
|
|
07-20-2021, 11:34 AM
|
#1 |
|
Junior Member
Join Date: Apr 2006
Posts: 7
Likes: 3
Liked 1 Time in 1 Post
|
Re: gear change
MPH X gear ratio X 336 / tire height (this only works assuming the trans final drive ratio is 1-1)
Examples: 120 MPH X 4.56 X 336 ÷ 28" = 6556 RPM 120 MPH X 4.88 X 336 ÷ 28" = 7027 RPM 120 MPH X 5.13 X 336 ÷ 28" = 7387 RPM Obviously converter slip is not factored into the equation. |
|
|
|
07-20-2021, 03:37 PM
|
#2 |
|
Senior Member
Join Date: Nov 2007
Location: Div. 6, Eastern, WA
Posts: 710
Likes: 2,681
Liked 240 Times in 112 Posts
|
Re: gear change
__________________
Dave Noll, EF/S ,?/SA 6526 |
|
|
|
|
07-24-2021, 10:30 PM
|
#3 |
|
Senior Member
Join Date: Jun 2006
Posts: 541
Likes: 11
Liked 20 Times in 14 Posts
|
Re: gear change
Thanks all! When making a gear change the mph will change. In general going from a 5.13 going thru the traps at 7300 rpm and changing to a 4.88 what rpm drop can I expect?
|
|
|
|
|
07-25-2021, 12:01 AM
|
#4 |
|
VIP Member
Join Date: Dec 2001
Location: Texarkana Ark/TX
Posts: 2,446
Likes: 575
Liked 880 Times in 311 Posts
|
Re: gear change
7300 - 4.87% (355.5 RPM) = 6944.9
Providing the converter slip % stays the same.. (It usually doesn't)
__________________
Adger Smith (Former SS) |
|
|
|
 |
| Thread Tools | |
| Display Modes | |
|
|
Hybrid Mode
