[SuperB70]

Because my engine dosent spin 8 to 10.000rpm.
Need overdrive(s)and low gears. Looking to get top speed over 200

You shouldnt put those two in same sentance or in to same line 4L80 and DCT.
Night and day. Rocks and sticks vs. modern day. You will never get that same out of old style hydraulic automatic trans as will from direct clutch transmission. Why the current Corvette and GT500 Mustang has one.

Example, you can upshift in the middle of the corner flat out at roadracing. Does not lose traction because its so smooth.

I've put 4L80 and TCI 6X earlier projects.. No more. Even again.
Current project building with Mercedes W5A900, used in SLRMcLaren and Maybach. (Only .83 OD) Would like to use DCT but dosent hold enough tq for my application (+1500ftlbs)