I purchased a set of Daytona camshafts off of the forum here last fall with the intent of putting them in my 09 Street Triple. Since then I have been indecisive, going back and forth on using them or just keeping it simple. Somewhat on a whim, I decided to go ahead and try them out since I was having to do a valve clearance check/ adjustment.
When I first installed the cams, it didnt seem to run any different, just had a clunky noise , then I realized they had to be put IN the engine:duh:
![Image]()
...well, not really...I got the cams in and valve clearance adjusted. I also made some exhaust changes going from the twin highmount Arrows to a custom low pipe and merge collector. I couldnt just download a Daytona tune into the Striple ECM, so I copied all the tables from an 08 Daytona Arrow tune into the 20395 Street Triple Arrow tune. I rode it easy just to make sure there were no mechanical issues, then set an appt. for some dyno time.
We made runs at various throttle openings, and at cruise to see where the mixture was.The tune was way off, fat in some areas, and lean in others. There were 'trends' in the tune, where if it was rich at 8000 RPM at 50% throttle, it was also rich at other throttle percentages. This was fairly true across the board. Being this was my first time dyno tuning a bike using TuneEcu, and the dyno operator was not familiar with it we had a bit of a learning curve to determine how much fuel changes were necessary to get the desired result.
Due to time constraints, I didnt get it as *perfect* as I would have liked, but Im at least comfortable enough with it to ride it. The shop owner was very reasonable as far as what he charged me. The fact that I did all the tune work while he ran the dyno allowed him to get some other stuff done.
I did a before run with the Arrows and Striple cams back in February. Here is a comparison of the best run then and the second best run today ( the best run didnt get saved to my flash drive, but had marginal improvements in midrange) I lost about 2ftlb under 6K RPM, and there is a little dip around 8K. From 9K on the new setup gains some merit. About 10 HP gain at peak, which is about 10%. It was also almost 30 degrees F warmer on the 'after' run ( 65 degree v 92 degreeF)
![Image]()
My Subjective Opinion: The loss of low RPM torque is noticable when riding. Mainly when pulling out of a turn or rolling on the throttle in second gear or higher. The extra power on top is also very easy to feel. It pulls a lot stronger, and the front end gets lofty a bit easier.
I would speculate that someone who is a bit of a *lazy* rider and doesnt like to shift a lot, or wants a very forgiving bike should stick to the Striple setup. I would also say that someone who wants a little more rush, and is willing to keep the bike in the powerband might feel the slight loss in bottom end is worth it. To me it is easy to keep the bike in the powerband, you just have to know what gear to be in and be willing to let it rev up some.
Im happy with it so far.:biggrinjester:
Here is the bike:
Before:
-1 front sprocket
12,xxx miles
Paper air filter in modified box
gutted cat, stock midpipe, twin high mount Arrows with Db killers removed
20198 v3. modernized hex tune
06-08 style head
Now:
-1 front sprocket
12,xxx miles
Paper air filter in modified box
Daytona cams
06-08 style head
Stock Header primaries
Merge collector and 2"pipe
20395 tune modified on Dynojet Dyno with TuneEcu 1.8.6
![Image]()
EDIT: this wasnt the final run, I had to pull the bike off the dyno so another guy could do a quick test. I nabbed this combined image just in case I was 'done' for the day. The final run had a flatter mixture, but no more 'peak' power, just a bit more midrange.
When I first installed the cams, it didnt seem to run any different, just had a clunky noise , then I realized they had to be put IN the engine:duh:
...well, not really...I got the cams in and valve clearance adjusted. I also made some exhaust changes going from the twin highmount Arrows to a custom low pipe and merge collector. I couldnt just download a Daytona tune into the Striple ECM, so I copied all the tables from an 08 Daytona Arrow tune into the 20395 Street Triple Arrow tune. I rode it easy just to make sure there were no mechanical issues, then set an appt. for some dyno time.
We made runs at various throttle openings, and at cruise to see where the mixture was.The tune was way off, fat in some areas, and lean in others. There were 'trends' in the tune, where if it was rich at 8000 RPM at 50% throttle, it was also rich at other throttle percentages. This was fairly true across the board. Being this was my first time dyno tuning a bike using TuneEcu, and the dyno operator was not familiar with it we had a bit of a learning curve to determine how much fuel changes were necessary to get the desired result.
Due to time constraints, I didnt get it as *perfect* as I would have liked, but Im at least comfortable enough with it to ride it. The shop owner was very reasonable as far as what he charged me. The fact that I did all the tune work while he ran the dyno allowed him to get some other stuff done.
I did a before run with the Arrows and Striple cams back in February. Here is a comparison of the best run then and the second best run today ( the best run didnt get saved to my flash drive, but had marginal improvements in midrange) I lost about 2ftlb under 6K RPM, and there is a little dip around 8K. From 9K on the new setup gains some merit. About 10 HP gain at peak, which is about 10%. It was also almost 30 degrees F warmer on the 'after' run ( 65 degree v 92 degreeF)
My Subjective Opinion: The loss of low RPM torque is noticable when riding. Mainly when pulling out of a turn or rolling on the throttle in second gear or higher. The extra power on top is also very easy to feel. It pulls a lot stronger, and the front end gets lofty a bit easier.
I would speculate that someone who is a bit of a *lazy* rider and doesnt like to shift a lot, or wants a very forgiving bike should stick to the Striple setup. I would also say that someone who wants a little more rush, and is willing to keep the bike in the powerband might feel the slight loss in bottom end is worth it. To me it is easy to keep the bike in the powerband, you just have to know what gear to be in and be willing to let it rev up some.
Im happy with it so far.:biggrinjester:
Here is the bike:
Before:
-1 front sprocket
12,xxx miles
Paper air filter in modified box
gutted cat, stock midpipe, twin high mount Arrows with Db killers removed
20198 v3. modernized hex tune
06-08 style head
Now:
-1 front sprocket
12,xxx miles
Paper air filter in modified box
Daytona cams
06-08 style head
Stock Header primaries
Merge collector and 2"pipe
20395 tune modified on Dynojet Dyno with TuneEcu 1.8.6
EDIT: this wasnt the final run, I had to pull the bike off the dyno so another guy could do a quick test. I nabbed this combined image just in case I was 'done' for the day. The final run had a flatter mixture, but no more 'peak' power, just a bit more midrange.
:sifone:
