8 inch Full Billet Lockup Converter
8″ Full Billet Lockup Converter
10 inch Billet Lock Up Converter
10″ Full Billet Lock Up Converter

The “Wet Clutch” – lets you kiss between rounds clutch maintenance good by!

The latest innovation from Neal Chance Racing Converters is the Full Billet Internal Lock Up Racing Converter. This unique new converter was a top secret joint project between NCRC and Rossler Racing Transmissions, but the cat is out of the bag now! This converter has captured and HELD ALL the Turbo World Records and ALL the Pro Nitrous Records in PDRA!!!

It works either with Rossler’s TH400 Based Transmission such as the 210 Series 3 speed, 2 speed TurboGlide or Bruno Drive. The Lockup Converter offers far more durability than a “Dry” clutch, with the ability to last an entire season in a 3.70 Nitrous car with no wear!


  • 5 Axis CNC Machined Body and Fins
  • NCRC Extreme Duty Monster Mechanical Diode
  • Stators available in Fabricated Steel, CNC Billet Steel or CNC Billet Aluminum
  • Custom 5 Axis CNC Machined Fins increase efficiency.
  • Heavy Duty Thrust Bearings
  • Hardened Pump Hub
  • Internally and Externally Balanced
  • Optional CNC Machined Billet Titanium Drive Cover

Our customers that have switched have found what used to be the “ragged edge” with a clutch, is now “safe” with less chance of tire shake. The billet lockup offers the best of both worlds – you can launch with the quick reaction and torque multiplication of a converter, and lock it up when you want to for that big top end charge. You can even pulse the lock up if you wish.

It weighs in at 30 lbs for the full billet version which is super lightweight for a lock up converter, and it’s also available in aluminum/steel configuration for about a 6 lbs weight hit. It’s designed to take the full brute force of even a Nitro Burning Blown Hemi, so this is gonna shake things up just a bit in a very short time frame!

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Lockup Converter Heavy Hitters


Turky Al Zafari / Q80 Racing
Turky Al Zafari / Q80 Racing
5.461 Quickest 1/4 Mile Doorslammer
Paul Mouhayet MOITS Racing
Paul Mouhayet / MOITS Racing
274.33 MPH Pro Mod World Record
Anthony DiSomma / Desert Demons Racing
Anthony DiSomma / Desert Demons Racing
PDRA Pro Boost ET Record Holder
Todd Tutterow
Stevie “Fast” Jackson
Jason Harris
Jason Harris
PDRA Pro Nitrous MPH Record Holder
Tommy Franklin
Tommy Franklin
PDRA Pro Nitrous ET Record Holder
Lizzy Musi
Lizzy Musi – PDRA Pro Nitrous
Jim Laurita

Jim Laurita – ADRL Pro Nitrous

Jamie Hancock
Radial Vs. The World