View Single Post
  #2  
Old 12-24-2002, 05:33 PM
blackmercedes's Avatar
blackmercedes blackmercedes is offline
Just a guy
 
Join Date: Dec 2000
Location: St. Albert, Alberta, Canada
Posts: 3,492
Your C280 has, I believe the 2.87 final drive. Later five speed cars have the 3.07 ratio.

At 2.87 and the 195/65-15 tires, you would be spinning 840 times per mile. So, at 60mph, your engine is spinning 2400rpm.

At 85mph, you should be at 3400 or so. Keep in mind MB tachs usually read 100-200rpm high. So, at 85 mph, you would probably see an indicated 3500-3600rpm.
__________________
John Shellenberg
1998 C230 "Black Betty" 240K

http://img31.exs.cx/img31/4050/tophat6.gif
Reply With Quote