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

Discussion in 'Manton Push Rods Top Alcohol Tech Questions' started by 57Chev, Jan 30, 2017.

  1. 57Chev

    57Chev Member

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    I'm looking at upgrading my Lenco Drive to a Lock up Unit. What's the latest combo that's working in Screw Blown or Roots Blown Cars? What Drive Unit and which Converter?

    Thanks
    Ray
     
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  2. jay70cuda

    jay70cuda Member

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    Beware you better own stock in your choice of ring gears. As they last 4-10 runs with a lock up.
     
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  3. Mike Canter

    Mike Canter Top Dragster

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    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.
     
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  4. jay70cuda

    jay70cuda Member

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    Tutterow people told me toms 10 in gear last 10 runs. Stretches the pinion right out of them. Us gear last 4-6. When it locks up 3-6 times a run just plays hel on the gear. A clutch or converter never locks up 1 to 1. They said pro extreme cars carry 3 built center sections with them every weekend. All chances are they'll use them all. Just brutal.
     
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  5. Mike Canter

    Mike Canter Top Dragster

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    Is the rear end failure caused when you pulse the lockup converter or just straight lockup?
     
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  6. jay70cuda

    jay70cuda Member

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    No idea. The thought of that alone scared me away. When told you have to order rear gears by the pallet. I knew I was over my head.
     
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  7. Will Hanna

    Will Hanna We put the 'inside' in Top Alcohol
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    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....
     
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  8. TOL

    TOL Active Member

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    I don't understand the underlined yellow part ?....

    Also, for the original poster, what's a TY-Drive?....
     
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  9. 57Chev

    57Chev Member

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    It's a new Converter Driver that is out. Not sure how to post the link on here. I don't think they have a web page but they have a Facebook page. Ty-Drive.
     
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  10. Will Hanna

    Will Hanna We put the 'inside' in Top Alcohol
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    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.
     
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  11. TOL

    TOL Active Member

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    Why would they lock/unlock so many times?....
     
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  12. Mike Canter

    Mike Canter Top Dragster

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    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
     
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  13. Will Hanna

    Will Hanna We put the 'inside' in Top Alcohol
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    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.
     
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  14. TOL

    TOL Active Member

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    So if a person was to lock it and leave it locked, then the ring gear life issue would probably go away? Or, PWM the apply force like the OE vehicle manufacturers do so that the apply is not such a harsh on/off bang?
     
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    Last edited: Feb 1, 2017
  15. greenracing

    greenracing Member

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    I think they need to unlock it before the shift(s) to calm the shifts down.
     
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  16. rb0804

    rb0804 Member

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    If you leave it locked for the shift on the th400 type transmission it will break the transmission. Some types of lockups take a bit of time to release also, it's not instant from the time you remove power.
     
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  17. TOL

    TOL Active Member

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    How much of a difference are we talking here, run for run?.......
     
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