hogasswild

I've used several different calculators, and can't figure out what tire/wheel size AM uses for their RPM chart. According to their site I should be doing 75mph at 2243rpm, which isn't bad. But according to the fatboy calculator, I'd have to use 29.3" wheels for that which I know isn't right. Do you have any real world numbers at 2000 and 2500 rpm? I'm probably going to go staggered with 275/40-18s in the back.

6+6 Stang

With what I run 235/50/18 3.31 gears 72mph is 2000 rpms for me

sketchy00

With 3.55's running 235/50/18, I'm running at 65mph at 2,000rpm. My calculator pinned it to 1,992 RPM's but with the tach on there, it's hard to tell. Just call it an even 2,000rpm. 80mph will be running just shy of 2,500 RPM's for me.

For cryin' out loud 6+6, it's good to see you back on the boards again.

6+6 Stang

Yeah, between blackberries, smartphones, a new iPad, and stopped modding, just seems if have not much input anymore, so been reading and saw something I could comment on so I did LOL, yeah been awhile, plus since memorial day been 3 Weeks drive to minnesota and back, then Mississippi for week, back to Minnesota for 3 weeks cause dad for ill then visitors from Japan came for 3 weeks, they wanted a one day trip to Disney world 1700 miles, life has been too busy

hogasswild

Wow... Did you put all those miles on the mustang?

6+6 Stang

4000 on stang 2000 on caddy

hogasswild

Anyone got real life rpms at 60, 70 and 75mph using 3.73 gears and 275/40-18 tires?

solidhadriel

I'm running 3.55s and @ 60 MPH I'm doing right around 2k RPMS

hogasswild

Solid, what size tires?

solidhadriel

245 - 45 - ZR19