TCC lockup - which scheme would give better performance?

[Bruce Plecan]

-----Original Message-----
From: Roger Heflin <rah at horizon.hit.net>
To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
Date: Saturday, January 09, 1999 2:41 PM
Subject: Re: TCC lockup - which scheme would give better performance?

If I was locking the converter, then I'd do it just over the flash speed of
the converter.  As I understand things, the torque multiplication is about
over
or should be as you reach max torque, and that should be a tad higher than
the stall speed of the converter.  Course IMHO, if your gettting that
serious then
a 200R makes even more sense since you get a set of closer gears, and
then run a higher (numerically) rear gear.  Just wish there was an electric
valve body for the 200R sitting on the floor here.  Then I'd go to a PCM.
Just outta curiousity how did you figure your at 365HP?.
Bruce


 Bruce Plecan wrote:
>> Then why at 300HP did I start killing them so often, and then deleting
>> the TCC instantly it lived.
>
>I am running over 300 hp (365hp), and the stock computer has been
>locking it at wot (95mph) for over a year, and at 300hp for a year
>before that and I have not (yet) had any problems, but I do have an
>aftermerket convertor that could potentitally be alot harder than any
>of the stock convertors.
>
>> >The problems that arise is if the TCC solenoid becomes plugged.  then
the
>> >TCC slips and will destroy itself... this happens in any trans with TCC.
>>
>> I'd had mine out several times, and appart and never saw any
>> evidence of even an accumulation of anything there.
>>
>> I still stand by what I said, to avoid failures, don't lock it at WOT, or
>> run a non TCC converter, period.
>
>GM by default locks the 4th gen A4 at wot.  It is at a different
>speed on the 93's than the 95+ cars but, I would hope that had
>tested this sort of  thing enough to know how long it would last,
>maybe I just got a good tranny, mine is past 115k on a high hp engine,
>with only a shift kit and better higher slip torque convertor added.
> Roger