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Planning the stage one in preparation for the torque camshaft. I really don't care about a dyno tune sheet as much as I do the difference before and after in the way the bike feels. Interested thread.
Bill
Getting a dyno session by a person who knows what there doing can make a bike run more efficiently.. it's not just about hp or tq. It's about making your parts work the best ..If you spend the money on mods don't stop at 80%
300 dollars for 10 HP and 10 torque is a very good deal for more power
You are correct, with the street tuner you will not get much, it cant alter the fuel ratio, nor the timing. With a full feature tuner I bet you would pick up a lot.
Timing is adjustable.However no changes were made, in timing, with My four smart tunes.
No, if timing was adjustable then it would be able to take it out of EPA emissions standards. That is why Fuel and timing can not be altered.
Here is what HD says
The Screamin EagleŽ Pro Street Performance Tuner is designed to simplify management of engine operating parameters as performance modifications are made. Once installed, the kit allows you to adjust key parameters or simply upload the latest Engine Control Module (ECM) calibrations to match your bikes state-of-tune. Start with a high-flow air cleaner and Street Performance mufflers and upload the calibration that provides the best performance mix. Add additional Stage Upgrades later, and you simply upload the proper ECM calibration to match the model and hardware. Plus, you have free online access to the latest factory calibrations. Ideal for real-world street performance applications, the Pro Street Tuner provides the adjustability to account for bike-to-bike variation and for changes to cams, heads, intake and exhaust while maintaining closed-loop fuel control for fuel economy in the part-throttle operating range. Unlike other aftermarket tuners, The Screamin' EagleŽ Pro Street Tuner actually talks directly to your motorcycles ECM and re-programs the motorcycles operating system. It isnt a piggyback system that tries to fool the ECM into adding more fuel or changing the ignition timing. The Pro Street Tuner plugs into the bikes data port, so no splicing or under-seat hardware is required. And unlike other race tuners or engine controllers, the Screamin EagleŽ Pro Street Tuner does not impact your Harley-DavidsonŽ factory warranty coverage.
Features a guided Smart Tune process to enable quick navigation through the software, whether new to tuning or an experienced user
Stores up to 15 minutes of run-time data that can be downloaded to PC, allowing you to view and evaluate the bikes air/fuel ratio, O2 sensor readings, engine speed and temperature, RPM and vehicle speed, throttle position, spark advance and much more
Vehicle Communications Interface (VCI) will record and display service codes for troubleshooting and diagnostics
Smart Tune Live, a dynamic method to track engine data by running vehicle through a range of RPM and throttle positions, reduces time to modify existing Volumetric Efficiency tables (works on models with factory-installed O2 sensors only)
Adjustability to Spark Advance, Throttle progressivity, and Volumetric Efficiency to custom tune the performance combination
Includes the Vehicle Communications Interface (VCI) module and unlimited access to the latest software updates and calibrations available from Screamin EagleŽ, Tuner Cable kit sold separately
Permits tunability to optimize performance and drivability without compromising fuel efficiency, emission levels, engine durability, or 50-State U.S. EPA compliance
Free web-based training guide can be found at
Getting a dyno session by a person who knows what there doing can make a bike run more efficiently.. it's not just about hp or tq. It's about making your parts work the best ..If you spend the money on mods don't stop at 80%
Maybe that is the key. Some of you live where these kind services are readily available, and you can evaluate who knows what tbey are doing. Most places I've lived you don't have a big choice. Maybe tbat one guy with his shingle out knows what he is doing, or maybe he doesn't.
A whopping 3 hp, like I said awfully close, it is after all a harley, they aint winning any drag races lol
Okay but people speed 1K plus for an exhaust system to pick up 5 to 7 hp. So 300 for a tune is pretty cheep for 3 more hp. That 300 if you already got the exhaust system will usually add more then 3hp.
Of course there are many that buy the exhaust system for purely for noise and those systems wont benefit much from a tune.
Me I select parts, purely based on performance gains.
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