talonboy
Member
Just wanted to post some dyno runs I made recently. This attachment shows 2nd thru 6th gear runs, with clutch switch mod. Stock exhaust, Power Commander V and Optimizer installed,map for stock exhaust..
Dyno runs
- Thread starter talonboy
- Start date
talonboy
Member
This second attachment is 2nd thru 6th gear, S mode. Stock exhaust, Power Commander V and Optimizer installed,map for stock exhaust.
talonboy
Member
Third attachment is T mode. Stock exhaust, Power Commander V and Optimizer installed, map for stock exhaust. Here you can see that T mode makes less power in 2nd, 3rd, and 4th gear. 5th and 6th make similar to S mode, and clutch switch mode. Was not able to run the bike in first gear on the dyno, it hopped too much.
talonboy
Member
Here is three runs in 6th gear, clutch switch mode, S mode, T mode. Power Commander V, Optimizer installed, map for stock exhaust. Stock exhaust.
talonboy
Member
Here is 4th gear, all three modes. You can clearly see how much less power the bike makes is T mode on this chart. Stock exhaust, Power Commander V, Optimizer installed, map for stock exhaust.
MrTwisty
Member
Well that explains why I never use T mode. 
eemsreno
Well-Known Member
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Thanks for posting this, This is the reason I cancelled my "Consumer News MAg," They said "NO POWER DIFFERENCE FROM T TO S MODE" I had test road one in Kansas City and you would have to be brain dead to think that there was no power difference. Then they voted the GS the winner. What Ever. Good Job talonboy.
Awesome bit of information layed out side by side. great post ::008::
+1 ::008:: Fantastic, Thankstroll said:
Answered a few questions I had, one was if the Clutch switch "locked in" a map such as 4th and possibly reduced absolute top end, which it does not.
I am now thinking maybe a power commander mapped for the clutch mod is the way to go, cheaper than a reflash and re-saleable, this goes against my other preferences for ECU tuning Vs Power commanders, but the alternative is quite grim...
I have spoken to Off The Road who recommend the re-flash to remove fly restrictions and then using a Power Commander to fine tune for my exhaust system, well let me see 450 Euro's to do the same as the clutch mod (10 Euro's with swtch)
I have also spoken to the UK ECU Unleahed dealer who tells me pretty much the same, in that they get a much better result from fitting a PC as well as the Flash.
Nobody can do a custom flash except a place in Bristol, but they need to cut open the ECU on the forst Tenere they do to read the ECU code, and they also need to work out the pins for flashing, once done they can custom map any other bikes without cutting pen the ECU. This owuld be my prefered method (and they have offered to do it for free to get the ECU codes) but carries a risk to my ECU and will invalidate my warranty.
This makes the Power Commander seem a good option, but I do not like having to find space for more stuff, and to have the possibility of it failing (I have known a few people who have "broken down" due to a faulty power commander) and I also need to notify my insurance and pay more for a Power Commander, but the way the Tenere is designed and the limited flash options it is looking like the best way forward.
Yamaha says the same thing. T mode only affects the rate at which the throttle opens, nothing else. Not sure if a PCV would change that. I like T mode off road and on dodgy surfaces.eemsreno said:
talonboy
Member
T mode does change how the butterfly's open. At wide open throttle they only open to 65% or so, in the lower gears, in T mode. There may be other changes too, I don't know. The PCV does not change that.20valves said:
I also like T mode for off-road use.
talonboy
Member
Latest Dyno runs. Here is comparison of full stock exhaust, to Arrow header and stock muffler. Power Commander V and o2 Optimizer installed. Both runs with PCV mapped using appropriate maps on the Dynojet website. Looks like the header picked up about 3hp max.
Re: Re: Dyno runs
There are other dyno runs on this forum that show the same info.... the throttle bodies are only about 60% open, with throttle tube twisted to the stop in T-mode. Not so in S mode.
Sent from my SC-03E using Tapatalk 2
So, you are saying you don't believe any of the dyno graphs th OP provided？20valves said:
There are other dyno runs on this forum that show the same info.... the throttle bodies are only about 60% open, with throttle tube twisted to the stop in T-mode. Not so in S mode.
Sent from my SC-03E using Tapatalk 2
cmastrom
New Member
Just got my tenere yesterday so I know diddly sqaut except it is fun. What is the clutch mode you have mentioned?
Thanks
Thanks
talonboy
Member
The clutch mode I was referring to is disconnecting the wires going to the clutch, and placing a jumper across the two wires. Commonly referred to as clutch switch mod, do a search and you will find a ton of posts. The bike feels like it has much better throttle response with this mod, but it doesn't really show much on the dyno.cmastrom said:
I would say it does show up quite a bit!
2nd gear run is from a Flashed bike, but the restriction is clear to see, and the clutch mod will get 95% of the gai.
3rd gear run is my bike and you can clearly see another 10% - 25% between 30 and 60 in third, the former will show up badly on switchback roads (Alpine hairpins etc) and the latter is right in the "I wanna overtake this old dude" range.
Top end and upper gears are unaffected, so maybe no extra peak power, but huge real world gains for those of use who ride below 7,000 rpm in 1st - 4th, I assume that's all of us then :question:
2nd gear run is from a Flashed bike, but the restriction is clear to see, and the clutch mod will get 95% of the gai.
3rd gear run is my bike and you can clearly see another 10% - 25% between 30 and 60 in third, the former will show up badly on switchback roads (Alpine hairpins etc) and the latter is right in the "I wanna overtake this old dude" range.
Top end and upper gears are unaffected, so maybe no extra peak power, but huge real world gains for those of use who ride below 7,000 rpm in 1st - 4th, I assume that's all of us then :question:
Attachments
talonboy
Member
Here is the latest dyno runs. This is completely stock exhaust vs full Arrow exhaust with DB killer removed. 4th gear, S mode. Power Commander V and Optimizer installed for each, both tuned for each setup.
scott123007
Well-Known Member
Talonboy,
Your last post is too vague. You didn't say what gear you were in or what mode. At any rate this is getting too Harley-esq as it's looking like it will take well over $1000 to get this pig to break 100hp. ::007::
Your last post is too vague. You didn't say what gear you were in or what mode. At any rate this is getting too Harley-esq as it's looking like it will take well over $1000 to get this pig to break 100hp. ::007::
talonboy
Member
Rasher,Rasher said:
Attached is my bike, on our dyno, three 2nd gear runs. T mode, S mode, and clutch switch shorted. You can clearly see the difference in T mode, from the other two modes. The S mode and clutch switch shorted mode appear very similar. The bike feels very different on the street between the three modes.
The dyno runs you posted show a clear difference between runs. The look of your ECU modified run, has a similar curve to my runs. The other run, looks very different than all of mine. I have no explanation for that.
I wonder if this is a difference between regions :question:
May explain why some rave about the clutch mod a lot more than others.
My bike feels just like the graphs I posted show with 2nd gear being very sluggish low down, and quite peaky when it does take off, this makes town work painful, and when I hit the Alps next spring would be unbearable as there are so many 10-30mph corners where you want power from off-idle in 2nd / 3rd.
3rd is a little better and when riding steadily is not that noticeable, but when you do want to get a move on, or drop to 3rd to pull a quick overtake you definately notice the hesitation.
T-Mode is so shite I never use it, although I could see it being handy for off-road.
May explain why some rave about the clutch mod a lot more than others.
My bike feels just like the graphs I posted show with 2nd gear being very sluggish low down, and quite peaky when it does take off, this makes town work painful, and when I hit the Alps next spring would be unbearable as there are so many 10-30mph corners where you want power from off-idle in 2nd / 3rd.
3rd is a little better and when riding steadily is not that noticeable, but when you do want to get a move on, or drop to 3rd to pull a quick overtake you definately notice the hesitation.
T-Mode is so shite I never use it, although I could see it being handy for off-road.