rpm3

Category: Drivetrain
Price (no $ sign please): $6500
Private or Vendor Listing: Private Listing
Part fits (select ONLY those which apply): 911, 912
Location (Region): NorthEast
Item Condition: Used

Close-ratio Aluminum 915 Transmission

Zero hours on a fresh rebuild using new 930 turbo synchronizers on 3, 4, and 5. Factory limited slip. Has $3K work of custom gearing as follows:
1st gear - 11:35 (3.18) Stock
2nd gear - 19:32 (1.68) - two ratios above stock (18:33)
3rd gear - 23:28 (1.22) - one ratio above stock (23:29)
4th gear - 26:25 (0.96) Stock
5th gear - 32:28 - (0.88) - two ratios below stock (29:21)
I designed this transmission as a general purpose close-ratio design. My goal was to have the gears evenly spaced by MPH. I can't remember for sure but I think I was targeting 150MPH @ redline of 7200 and I divided the 150 by 5 to get 30MPH per ratio. I think I also decided that first gear was to get the car on the trailer and that I would concentrate on 2-5. After this decision I think I narrowed the MPH range for 2-5. This page: http://www.pelicanparts.com/techarti...nny_ratios.htm has a spreadsheet (915 Spreadsheet 1) that can be used to see the actual effect of my gear selections.

I purchased the gears from Guard and Patrick Motorsports. It would cost about $12K to duplicate this transmission today. It was just rebuilt and has not yet been installed in a car. I have receipts showing $5432 for the rebuild alone plus $3800 for custom gears. Those gears cost a lot more now.
Asking only $6500 + shipping from MD. Trust me, you'll spend $10k+ rebuilding yours.