Ferrari Mailing List: Re: 400i manual

[Hunter N. Schultz (hns]

Hi,

Ferrari screwed up when they installed the wrong torque converter in the 
400 THM tranny. It needs a 2800 to 3000 rpm stall speed converter 
instead of what I think is a 2100 rpm in there now. That one simple 
change makes the car a beast. That's the way a good Ferrari mechanic 
explained it to me anyway.

Also, there are newer GM trannys that might work since the control units 
are now programmable with after market control modules. No need for all 
the computer hookups.

I would try the torque converter route first. If that doesn't meet your 
standards, then talk with a GM tranny expert at a Hot Rod shop. As I 
understand it, this is a popular upgrade for older GM cars with the THM 
350 and 400 units.  I think the new tranny is the 4L65-E.

If you go that route, make certain you research the hot rod forums where 
some very bright people are dealing with far more horsepower -- try 1000 
running through their automatics.

Regards,

Hunter



LtWacko wrote:
> Are there any stateside 400/400i/412's stateside that are manual?  I have 
> always been intrigued but only come across the automatics.  If I read 
> correctly, all the autoboxes are GM 3-speeds?  Can they be upgraded, swapped or 
> improved?  Could a vette 6-speed be dropped in?  Of course anything can be done 
> with the right amount of money but if it's a GM part, the possibilities seem 
> enticing.  Even a better autobox makes sense to make better use of the 
> powerplant.
>
> Rodney
> Hey, I'm in trouble already.  Why not get into more?
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