TripleZee Cycles

Yes we tune Power Commanders.

We do it a bit differently from the authorised Dynojet Tuning Centres.

Rather than use the TuneLink Auto Tune feature, we tune manually, ie we have full control over the tuning process. Auto Tuning is faster (and cheaper) but the Quality of the finished tune is debatable. There are a couple of reasons for this.

Air Fuel Ratios The first reason is the reliance on arbitary Air Fuel Ratios as the basis for tuning. While on the face of it it may seem like a good idea, it only works to a certain degree. Best performance or economy of your engine will NOT be achieved by setting large sections of the operating range to single AFR targets. Measured AFR (at the exhaust) is largely dependant on VE (volumetric efficiency) which varies through the whole operating range of the engine. The values of VE, the variations of VE are affected by engine design, exhaust, aircleaner, cams, pistons etc etc etc. A much better indicator of correct fuelling is power output, ie when the fuelling and ignition are correct observed HP will be highest. This is true irrespective of VE or AFR. Another excellent indicator is the results of checking with a 4 or 5 gas EGA.

An EGA gives us an insight into the combustion process, and where they can be particularly useful is when tuning for economy. Best Power mixtures tend to be on the rich side of Best Efficiency (Economy) so when tuning part throttle cruise we will trade off a little power for more efficiency. And the best tool for seeing how much we can trade is a 4 or 5 gas EGA. If you want more power just wind the throttle on!!

AutoTune Next reason, I think AutoTuning discourages the tuner from actually doing his best. The system is designed to increase productivity, not give the best tune. Tuner input is reduced to putting the bike on the dyno, setting the parameters in winpep, pushing buttons until the computer is finished. Next bike please. The advantage of this automated system is that the Tuner, or more correctly the Operator, does not need to know so much. In fact it is better to have someone who doesnt know so much, because otherwise they may try to actually Tune the bike. Its a bit like McDonalds, there is a system and procedure in place if you need a Big Mac. They dont actually want cooks in there making the Big Mac better, they want big macs coming out every 2.2 minutes or whatever.

I'm not saying Tuners who use dynojets are useless, good Tuners will get a good result regardless of the tools they use, What I am saying is that a 2 hr Auto Tune job is unlikely to leave your bike in the best state of tune it could be in.

I will spend 3, 4, 5 hrs tuning your bike, a good tuner on a Dynojet Dyno will also spend 3, 4, 5, hrs tuning. How much does it cost? For me dont expect any change out of $500 for a basic fueling tune.

SO Be wary of the cheap $300 tune, likely a canned map and auto tuned. You probably wont get the result you hoped for.

The Quality of your Tune is directly related to the Time and Effort put into it

 Technical Questions/ Product Inquiry?