New Bruno / Lenco setup help

Discussion in 'PSI Superchargers Tech Questions' started by outlaw3621, Oct 23, 2014.

  1. outlaw3621

    outlaw3621 New Member

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    looking at change from a Crower clutch to a Bruno with a 3 speed lenco, not sure what rato's and convert to use.
    The car is a bracket door car (DYO), 2600lbs, blown 515 BBC producing about 1600HP. Currently have 4:11 rear ratio, 34.5 tyres. I would like to keep the finish line RPM around 7500 and shift around the same RPM. I have not purchased the Bruno or converter yet and I have a number of lenco ratios available.

    some of the things I am not sure of are.
    * What 1st and 2nd gear ratio in the lenco are others using
    * What converter, bolt up and/or Lockup
    * What rear Diff ratio should I use to keep the RPM around 7500

    Thanks
     
    #1
    outlaw3621, Oct 23, 2014
  2. OwnBlock

    OwnBlock Member

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    bruno and planetary

    http://www.yellowbullet.com/forum/showthread.php?t=427792

    Both can and do go fast. Just different methods to the mayhem..
    In an outlaw like P/X type car.. Converter driven, 1.30-1.40 first gear, 4:30 rear, 36" tire, load the heck out of the converter and hope it grabs it TIGHT in 200 feet or less...
     
    #2
    OwnBlock, Oct 26, 2014
  3. Mike Canter

    Mike Canter Top Dragster
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    Hmmm, not sure that is all correct for your application or a PX application. The problem you are having is that a lot of us have really worked hard in finding the correct combination and now we have it we don't want to give it out. I can tell you this so you are not led astray that previous setup is wrong for your application. My recommendation is to call Rod Burbage at Spec Rite Converters (530) 243-8300 and talk to him. Drop my name with him and tell him what you are doing and see if he can help you.
     
    #3
    Last edited: Oct 27, 2014
    Mike Canter, Oct 27, 2014

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