Author Topic: RPM/Speed; follow-up for Tarafied1 (Read 250 times)

70_Fastback · « **on:** August, 10, 2009, 11:32:30 AM »

Sorry for the long delay - but here is what I turn at 85+/- MPH. Pretty much taching 4K

C4 with 3.80 gearing

David67 · « **Reply #1 on:** August, 10, 2009, 12:03:58 PM »

You need an overdrive. I still at 2400rpm with my car in 5th with 3:55 gears

70_Fastback · « **Reply #2 on:** August, 10, 2009, 12:10:43 PM »

Oh I know I need an AOD for sure.

tarafied1 · « **Reply #3 on:** August, 10, 2009, 06:02:13 PM »

I wanna go with a 5 speed but the expense to convert will be huge. I may consider a gearvenders OD unit. I recently drove a couple hundred miles highway only and averaged 13.3 mpg. I have both a 2.80 and a 4.11 for my car. Probobly need something in the middle