Chill out. The question wasn't about tuning, it was asking about getting temp info. The data stream into the factory ECM and the Thunderdingus both have that.

By the way, yes, the stock engine as delivered (no SERT required) auto tunes via the narrow band O2 sensors. The TMax refines that by going to a wide band O2 sensor. The stock auto tuning is +/- 0.5 AFR which is more than enough for any altitude changes you're likely to ride through and sufficient to let you put a set of slip-ons without hurting your engine.

Neither the stock ECU/O2 sensorsnor the TMax is a replacement for dyno tuning. It just lets you suffer less for not having it done.

 

You are dead on right. Good post.

 

The TM will give you engine temp info., It keeps infor on what the bike did as far as engine temp, aft, rpms. etc.. This is in reference to the original question.

As far as the replacement for dyno tune. A buddy of mine had a sert like me, He had his bike dynoed and has the printout sheet. He put the TM with A/T on and rode his bike for about 1000 miles. Took it back and had it dynoed at the same dealer on the same machine. The lines were about the same, Hp and everythng with no dyno time.

 

You can but a Infrared heat detecter at Sears for around 50 dollars. It is fairly accurate. It is small enough to fit in a pocket. Just compare your front and rear cylinder head Temps. The rear usually runs hotter. Your bike however does have safeguards built in to control rear cylinder heat. Read your manual/

 

Not trying to be an a-hole, as this is a serious ? But what then was the point of buying the TM auto tune and wasting the money that was spent on the SERT? Why pay ~$500 more for it than the pcIII or something similar?
Once again, serious question as I am trying to plan purchases and not buy similar products twice. Thanks.

 

The over heat protection has to be turned on. 07 bikes come with it turned off. When using installing the SERT you have the option of turning it on or off, comes out of thecrate with it off ... Thunder Max, PCIII, Sert, Ya stillShould Run it on the Dyno to Fine tune. Wish you still had the option for a Carb

 

While I understand your point of view, as a pilot, I want to know the condition of my vehicle. I can then make better decisions. If I am idling a long time and notice I have reached an overheat point, I'd like to know to shut down. Another poster below stated that the shut-down feature is not enabled by default on the'07s. Is that true?

B

 

Only on the baggers default with it on

 

On my 07 WG the overtemp was turned off... I can however turn it on using the SERT.

 

Not sure I understand what you're asking, but if you want to compare fuel system modifications...

The SERT is just a dongle and some computer software that lets you talk to the factory ECU. You can find out what's going on in the ECU, you can change the rev limiter settings, you can modify the fuel map and some constants. The factory ECU is designed to use the fuel map when things are changing (engine cold, accellerating, decellerating, etc.) and uses narrow band O2 sensors when things are stable (idling, crusing at a fixed throttle position, etc.) Narrow band O2 sensors have a very limited response: they can tell you if you're running rich or if you're running lean, but they can't tell you how rich or how lean. However, it does form a feedback loop that allows the engine to adjust itself for altitude, air density changes due to temp and slight mods to the exhaust system. (My understanding is that mods to air intake are usually too much for the system to auto-adjust.)

The PCIII and Fuel Pak and such sit between the ECU and your fuel injectors and basically keep them on just a little longer than the ECU intends them to be. These things can only add fuel and so can only make your engine run richer (which is usually what you want anyway.) To do their work, they need you to disable the O2 sensors.

The TMax replaces the factory ECU with their own and replaces the narrow band O2 sensors with wide band O2 sensors. Wide band O2 sensors don't just tell you you're out of range; they tell you what your Air Fuel Ratio (AFR) actually is. If you know what it is, you can make the calculations to get it to where you want it to be. So if you add new air handling and new exhaust the TMax can figure out how to bring you back into line for AFR your fuel map is calling for and it can modify the map in your bike to achieve that while you drive. It's very cool tech and I don't mean to put it down in the least. It's just not what this thread was supposed to be about.

No matter which fuel system mod you choose, you're at the mercy of the map you have in your ECU. The TMax can adjust your bike to meet the goals of the map you have loaded, but you don't know if that map is the ideal map for your particular bike with your particular mods, the gas you like to run, the tollerances of your power train and so on. To get the perfect map, you dyno tune. After you dyno tune, if you make substantial changes to any part of the power system, the TMax can figure out how to get you back on track. If you make minor changes to the stock system it can probably adjust. The other systems probably need a new map crafted.