Want to convert from T5 to auto transmission.

[twin turbo]

Originally Posted by landmass

Twin Turbo, I've read where the AOD tranny is quite large, maybe reguiring enlargement/expansion of the tranny tunnel, also much heavier than the C4 or C6. Did you have any problems installing the AOD? Your manual valve body requires that you shift every gear? You mean if you put it in "D", it goes into(and stays in) 3rd gear-even at low speed? When racing, do you start in "1rst" then "slap" it into 2nd and 3rd when you want it to shift?

The AOD did not require any tunnel expansion on my car but I did have to grind down some tabs on the case itself. The AOD was the same length as my manual transmission so the installation was relatively straightforward on my FFR.

The AOD is quite a bit heavier than a C4, although I don't remember off hand the actual amount, probably 40 lbs or more. The C4 wasn't a good option for me due to my end torque and tall gearing (low numerically), they don't hold up well in turbo cars with this set-up, plus I wanted the OD option for high speed cruising. For a non-turbo car a built C4 is a great option, although a built C6 would be stronger, but heavier. If you don't want or need overdrive, no reason not to go with a C4 or C6.

Yes, I have to shift every gear with the full manual valve body. If I put it in drive, it's 3rd gear. The MVB is a lot of fun going thru the gears, I love it. Bonus is it really frees up room for your feet. Cheers.