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Clarification: the VE tables in SERT/TTS/SEST/Direct link are based on rpm/tps. The Ignition tables in SERT/TTS/SEST/Direct Link are based on rpm/MAP
How many people that have the AT systems take the time to remove the wide band sensors and free-air calibrate them? I ues the same sensors as the majority of dyno tuners in the world and mine get free-air calibrated before every bike and are checked after each bike.
I have removed many AT systems and gone back to just the Delphi with SERT/TTS/SEST/ Direct Link as the AT system with un-calibrated wide band sensors will begin to tune itself in the wrong direction and start to run rich or lean and may start detonating.
AFR tuning is only one part of the tuning picture. The ignition tables are just as important and require the same amout of attention. The stock ignition tables or most of the canned map download ignition tables are not getting the motor to operate at its MBT for best performance and efficiency.
Each and every motor is unique and has its own "signature". It should be treated that way and optimized for best performance and efficiency.
Clarification: the VE tables in SERT/TTS/SEST/Direct link are based on rpm/tps. The Ignition tables in SERT/TTS/SEST/Direct Link are based on rpm/MAP
How many people that have the AT systems take the time to remove the wide band sensors and free-air calibrate them? I ues the same sensors as the majority of dyno tuners in the world and mine get free-air calibrated before every bike and are checked after each bike.
I have removed many AT systems and gone back to just the Delphi with SERT/TTS/SEST/ Direct Link as the AT system with un-calibrated wide band sensors will begin to tune itself in the wrong direction and start to run rich or lean and may start detonating.
AFR tuning is only one part of the tuning picture. The ignition tables are just as important and require the same amout of attention. The stock ignition tables or most of the canned map download ignition tables are not getting the motor to operate at its MBT for best performance and efficiency.
Each and every motor is unique and has its own "signature". It should be treated that way and optimized for best performance and efficiency.
Yes, i left that out that the ignition tables are also MAP based with TTS/Sert. I have also tested and tuned many, many of the AT modules over the years as well but any issues I have seen have not actually been with the Wideband sensor, they have been with the calibration or map. We use this exact same sensors on our racecar with Wideband2 and freeair test it and it stays pretty consistent under pretty harsh conditions. This same sensor is the exact sensor that several OEM's use including Cadillac and several others which are warrantied up to 100K miles or more. I also agree that AFR tuning is only part of the entire equasion, it is just that the stock ignition timing is generally closer than fuel curve for most mildly modified setups which is why most concentrate on the fuel side of things, especially those without a dyno or means of data recording. For example when is is the last time you dyno tuned a combination and picked up 10+ hp from optimizing the igntion table, versus the fuel table which regularily yields big gains.
When the Dynojet LCD-200 unit is released it will unlock nearly unlimited possibilities for datalogging with the PC-V. Along with configurable guages on the LCD screen this will show data in real time and will give users the ability to log all of the PC-V and J1850 channels including F&R ignition timing, F&R knock retard, engine temp, MAP, TPS, IAC, vehicle speed, Etc... along with all of the PC-V data. If you have the Auto Tune it will also log AFR as well, and you can even configure an analog input for whatever else you would like to log or view. Logging time is determined by the size of your SD card and you will have up to several hours available. You have the options of viewing in real time, playing back the data, or importing it to an MS excel spreadsheet which offers endless option for comparing data. You can also store and change maps with the unit, there is even a drag strip simulator and several other cool features. We actually use one of these LCD-200 units on Keith's 8 second race car with the Dynojet Wideband2 and it works beyond awesome.
Jamie,
These are very cool and much needed features. But the Cost of the PCV is adding up fast. The TTS is one Price plus cables. You can tune your ve's,set AFR and tune your timing.Data record with it and even do a simulated dyno and 1/4 mile.(I know you have a great understanding of what it can do) So the PCV with all the extras adds up to be around $400 More then the one price TTS? My point is dollar for dollar the TTS is cheaper the PCV(with all the added extra) Both work well as you have said many times.
You need to consider a few things. With the TTS you can save $79.00 if you already have a cable kit, and a SERT cable will work too. The PC-V comes with the cables. The PC-V is expandable, you do not need the Auto Tune or LCD display these are both simply very good accessories. Considering the Auto tune module comes with dual wideband sensors it is one hell of a deal at $299.00 and its usefullness speaks for itself. The LCD is nice but again this is just an additional tool to assist in tuning and is not required as the PC-V comes with very good software (it also works great as a tach on bikes that do not have one, like my RK) The TTS does have excellent software as well with a good selection of tables and utilites. The most important consideration that none of the Dynojet components marry to the stock ECM like the TTS which can only be used on one bike, more specifically one ECM. The PC-V can be removed from your bike, many of them fit different models as you get a new bike you can uses the same unit, and the AT-100 and LCD-200 can be used to tune 1 bike or 100 bikes. Again, all great products and each has a fit for their individual application. Scott, in your case you took your time to research each product, learned about them, and you are doing great with TTS which is what tuning and enjoying these bikes is all about.
Since I never tune a bike for just AFR or just ignition and always do both I would have no way of knowing the impact of just one or the other. The bottom line is driveability and smoothness through the enitre rpm range. If the discussion is going to be just about price or biggest bang for the buck then Direct Link will win every time. I am not saying DL or TTS or PC are the same, I am saying if you look at pure pirce for the DL key and a dyno tune DL will win every time as compared to anyting else and a dyno tune.
Jamie,
Thanks for the complement. You have taught me a ton and appricate all your help. I know I'll keep doing business with you. Let me know when your 2-1 is ready
Scott
Last edited by vtwinbmx; Jun 11, 2009 at 03:49 PM.
Since I never tune a bike for just AFR or just ignition and always do both I would have no way of knowing the impact of just one or the other. The bottom line is driveability and smoothness through the enitre rpm range. If the discussion is going to be just about price or biggest bang for the buck then Direct Link will win every time. I am not saying DL or TTS or PC are the same, I am saying if you look at pure pirce for the DL key and a dyno tune DL will win every time as compared to anyting else and a dyno tune.
Well said on the tune, what matters in tuning is the end result of ones work. I also agree DL does offer a very good product at great prices and they are designed to support dyno tuners like you and I. I use their Centurion tool which works very well as it has most functions of Digital tech and does much more.
I'm definitely not a "TTS groupie". I'm just speaking from my experience with the the PCIII and the TTS MasterTune. My bike ran perfectly fine with the PCIII. I just didn't realize how much gas mileage I was givin' up with the map that was loaded on it.
You can get good mileage if you know how to tweak the PCIII or PCV (non-AT), and it isn't difficult. The PCV-AT is even easier to tweak. I've spelled out the details of doing this with all three variants numerous times on this forum, which you can find by searching. I was able to get as high as 50mpg on the backroads at 55mph with my '07 SG using a PCIII and later with the PCV. Now with SE255 cams added to the mix my mileage remains the same. Can you do better?
I'm not sayin' the TTS MasterTune is better than the PCV, because I don't have any experience with the PCV. But in MY opinion because of MY experience, the TTS MasterTune is the way to go.
The subject of this thread is "PCV or TTS?", so you think TTS is better even though you have never worked with the PCV?
I have the TTS and on a recent trip to Hot Springs, AR. Got better than 50 doing anywhere from 55-70 and mid to hi 40's on Interstate at 70-75. 08 RG with ANBS and SE Touring SO's, stock cams.
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