Street Source is shutting down April 30th, 2026.
Read the announcement
Search
Toggle search
Login
Register
Toggle sidebar
Search
General Discussion
rpm question
rpm question
General Discussion
794 views
1 replies
2 following
rpm question
giovanni
+1y
I have 235/85/16 now with th400 and 410 gears
What rpm with I be at around 65 with 225/75/16
I dont have a tac in there now to even tell were im at
online rpm calculator
says
31.7 is 2900 rpm @65MPH
29.3 is 3138 rpm @65MPH
Tire Size Comparison
Specification Sidewall Radius Diameter Circumference Revs/Mile Difference
225/75-16 6.6in 14.6in 29.3in 92.0in 689 0.0%
235/85-16 7.9in 15.9in 31.7in 99.7in 636 8.3%
DOES THIS SOUND ABOUT RIGHT?
S
scoti
+1y
Yep, sounds about right.
Previous
1
Next
Related Discussions in General Discussion
Thread
Posts
Last Post
Facts about No Regrets
last post by
Babyfartzmageezaks530
+1y
7
7
last post by
Babyfartzmageezaks530
+1y
Rewiring a whole truck? how much?
A
last post by
andrew3d
+1y
11
11
A
last post by
andrew3d
+1y
tilt column????
last post by
Whitey91
+1y
5
5
last post by
Whitey91
+1y
Lifted 1992 2600i 4x4
A
last post by
Alreadyhavingissues
+1y
5
5
A
last post by
Alreadyhavingissues
+1y