I will have to give you a ride sometime in air dc. I think Brian and I were going faster than that in Fredricksburg two years ago on those cattle roads. -----Original Message----- From: sammie smith <bugcollections@xxxxxxxxxxxxx> Sent: Wednesday, April 23, 2008 10:10 AM To: tcb@xxxxxxxxxxxxx Subject: [tcb] Re: Home OK, you big math heads I got the 76.4 using 23.5" tire diameter. You must have used his 24". But whatever, it's too darn fast for a bus, even if he does have a sway bar. evilscientistboo@xxxxxxxxxxxxx wrote: Assuming a 3.667 final drive at 4000 RPM I get 78 mph (77.9) The dog's motion is relative to the bus however if you measure relative to the road it is moving at 78 mph. -----Original Message----- From: Denis Dodson Sent: Wednesday, April 23, 2008 8:57 AM To: tcb@xxxxxxxxxxxxx Subject: [tcb] Re: Home OK, you big math heads 23 1/2" to 24" ----- Original Message ----- From: sammie smith To: tcb@xxxxxxxxxxxxx Sent: Wednesday, April 23, 2008 8:51 AM Subject: [tcb] Re: Home OK, you big math heads Denis: We can calculate if you will get a ruler and go measure the diameter of YOUR rear tire. Tire diameters vary by brand even for the same size So measure your tire. Denis Dodson wrote: I didn't know that this could be calculated, but it will be fun to know