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In Reply to: Engine Mods & 6 Speed posted by Bimmerhead on February 24, 2001 at 09:25:03:
Id' be interested in keeping this topic alive and see what advice might come up.
Big-T
I have had visions of what a 740il should be since I bought my 97 last year. I believe that properly modified it could smoke anything, perhaps excepting Vipers & twin turbo 996s etc.
I am looking into having a 6 speed done this summer as a first step to a major engine modification, to be done next year. (married w/ kidz)
An AMG/Mercedes tuner from Scottsdale, AZ. proposed installing a supercharger in my 4.4l., however he proposes to work the heads, install dished pistons (drop the compression to 9:1), as a move to prolong engine life,and install Kevlar clutch packs in the trans. I am told that Kevlar handles the heat better that the organic compound in a stock setup.
My thinking is that to spend all this $$, I should convert the trans first and just do the engine as a seperate unit second.
From first hand experience at Pocono Raceway with the DelVal BMW CC, the lack of a manual transmission is a disadvantage. Not having the clutch to downshift prior to entering a turn causes me to lean hard on the brakes which causes both a major wear issue & also unsettles the car's suspension as all the force slowing the car is at the front. I think that to do the motor properly and push it's output into the 500 hp. range requires a manual setup to control the car.
Is there
a tuner that can install a 6 speed from a 540i here in the States? There are rebuilt transmissions available from the folks in Hackensack NJ., but the rest of the package is difficult. Clutch, flywheel pedals & electronics are the real issue. One last question...are the crankshafts of motors setup with automatic transmissions drilled and tapped for flywheel attachment at the factory?
Thanks
Simeon