Jump to content
Ultimate Subaru Message Board

Need to know speed at certain RPM


Recommended Posts

What you need is a friend with a working speedometer and 2 cell phones (or a set of preselected hand signals!).

 

Have him follow you and when you get to the RPM you want, ask him how fast you are going.

Link to comment
Share on other sites

well if yours is like mine was...3200 should be 60mph and 3600 should be 64 or 65 in 5th gear...this is with 3.70 gear ratio

 

But funny how with the 3.90s you get a better freeway gear, and by better I mean lower RPMs. That is only taking in to consideration the gear ratios only, not figuring for wheel size.

Link to comment
Share on other sites

the gear ratio on the diff reads 3.90 and my original question refers to the 5th gear...Thanks

What gear are you asking for?

 

And also, what's the gear ratio of your gearbox? (look at the tag on the rear diff)

 

Results won't help you much unless you answer those.

Link to comment
Share on other sites

well if yours is like mine was...3200 should be 60mph and 3600 should be 64 or 65 in 5th gear...this is with 3.70 gear ratio

Don't sound right. My 3.7 turbo tranny holds 3200 at 65mph in 4th gear. 5th gear is much lower, I think like 2700rpm.

Link to comment
Share on other sites

Please sign in to comment

You will be able to leave a comment after signing in



Sign In Now
 Share

×
×
  • Create New...