Technical Information Looking After Your CVT


CVTs are safe with power levels from the Hondata reflash or FlashPro but power-braking will damage the CVT even at stock power levels.


Testing Procedure

Hondata tested their CVT calibration for over a year before releasing to the public.  In addition, our daily driver Civic has done over 20,000 miles in the last 18 months problem free at power levels 20% higher than our CARB reflash. Part of the testing procedure involved running a CVT Civic for 6 hours on the Miller Motorsports raceway in Utah. After the race, we disassembled and examined the transmission. All parts were as new. Hondata is confident of the robustness and reliability of their calibrations. 



CVT belt after 6 hours of circuit racing in new condition.


Consequences of power braking

Power braking is depressing the throttle and brake simultaneously. This has the effect of transmitting the entire engines’s power output into the CVT drive belt and cones. The CVT drive cones will slip, score and over-heat the belt.  Power braking will damage any transmission, with a reflashed or stock ECU.

Do not power brake.


Scored belt after power braking




Broken belt after power braking. The belt and drums are easily examined by removing the transmission end cover.


Scored belt and drums. Power braking with a stock ECU will do this.


Honda Australia has an optional OEM front mounted transmission oil cooler, as the Australian Civics can be configured for trailer towing. Consider fitting a larger front mounted oil cooler to your CVT. There are several aftermarket companies that sell CVT oil coolers.