TY-Drive/ Quick Drive/ Bruno and Lock Up converters

As far as I know right now there is only the Chance NSX billet lockup converter for blown promods.Coan is working on one but it is not out yet. Also pretty sure the only thing that can control the lockup is either a Rossler based TH400 or a Bruno drive. Never heard of getting 4-10 runs out of ring gears. Like to hear more about that. Are we talking about 10" ring gears in a Strange Ultra Case or something like that.

 

Is the rear end failure caused when you pulse the lockup converter or just straight lockup?

 

Quick drive offers a lock up version of their unit as well.

One conversation with some PX/PB Crew Chiefs about ring gear life was their theory was it was because of only having a 7 tooth pinion not taking the one to one load of the lock up. I took it at face value, but with this thread, I looked it up and all of the 4.29 gears we run in TAD/TAFC are 7 tooth pinions as well.

I haven't been around a lock up converter, but I would guess the damage is done at the 1-2 shift (with a 2 speed). I would think some of the teams out there have tried to slip it through the bottom of the shift.

Years ago as an early teenager, my dad was racing a blown alcohol 2wd mud truck. Turbo 400's were the norm for a 250' mud drag. My dad's truck had dominated for a long time, but there was a few hemi's starting to catch up with the Rodeck. My dad and the owner went and got an early TF 3 stage lock up glide clutch. They put a 3 speed lenco with dummy shafts in it to make everyone think they were shifting. It was a game changer, even on a 250' track.

In the classic way my dad explained things to me to understand, he said the difference in a torque converter and a clutch was like the difference in pulling on something with a rope or a chain. With the rope, there was some give. With the chain, there was none.

Next week, I'll share the acetylene torch analogy of rich and lean....

 

The Ty-Drive is a converter drive unit done by Todd Tutterow's son Ty. I think it is loosely based on a Bruno drive, but it is billet and has a lock up option. Pretty trick piece from what I have seen.

I'm sure what he means by locking up 3-6 times is they probably lock it up, unlock it, lock it back up, etc. So it probably is the equivalent of 6 or 7 shifts per run. If there is a corresponding rpm drop or gain, it's working that gear pretty hard, especially if it's a hard 1 to 1.

 

This last weekend at the US Nationals at Bradenton Ty Tutterow was side by side with Adam Flamholc into second gear until Ty locked up his converter and shot ahead. Pretty amazing to watch. Congratulations to Ty for winning the race

 

If I had to guess they are running a 3 speed with it, unlocking at the bottom of the shift. They might be locking early in the run, then unlocking through the shake zone.