Manumatic System: 4L65RR

4L65RR Manumatic System Contents:
-Bowler 4L65E-550 trans with engine braking option. Rated at 550 Ft-Lbs of torque.
-Twist Machine MuscleDrive™ Torque Converter with heavy duty lock up clutch.
-HGM Compushift Transmission Controller.
-HGM Compushift On Board Display.
-Twist/Bowler RR Advanced TCU Calibration.
-Twist Machine Shrifter® Paddle Shifter.

Great strides have been made in bringing manumatic technology to the world of hot rods. We can input shifts manually from the steering wheel, calibrate transmission function, and control engine/transmission coupling electronically. It all works extremely well, but we want more:
1) Just how fast can the 4L series of transmission be made to shift?
2) Can shift predictability be improved?
3) Can enhanced engine braking be employed to benefit vehicle dynamics in road racing and auto-X environments?
4) Can all of this be achieved without sacrificing reliability?

The 4L65RR Manumatic System answers and addresses all of these questions. While we (Twist Machine) were working from the outside in, Bowler Transmissions has been working from the inside out--by custom blueprinting and calibrating valve bodies, pumps and working with internal clearances. Just as with custom race engines, blueprinting and calibration are as important as parts selection. And just as with engines, mass produced units might be very good, but nothing compares to a precisely hand built and tested product. For those who insist on the best possible multi-purpose transmission for a hot rod application, the sum total is worth more than the parts.
The RR system is priced at $6455 for early style trans cases (pre-97) and $6555 for late style (97-up) cases. A 50% deposit will be charged at the time of order. Balance will be charged at time of shipment. Shipping charges are additional. Each system is custom tailored to your exact vehicle specifications and personal driving preferences. So please allow 4 to 6 weeks for production.