Instantly 15 more free HP

[mcbrien]

Not quite, if you look at the graphs it is more like 50% at 5,000rpm and there is no way I am feeling anything like that difference, and if it was that huge nobody would be testing this out and not realy noticing.

Should find out for myself by this time next week ::008::

Looking forward to your results ::017::

 

[protondecay123]

Looks like Jaumev got 10 hp or so in third. Will be interested to see more results

 

[snakebitten]

Kept my mouth shut for the 45+ days of this thread. But I have caught up with it every single login.

I've gotta be honest though and admit that I have contemplated the whole debate with a bit of arrogance. Afterall, it is in the rear view mirror of life that you will find more than my fair share of hooliganism on 2 wheels. And I was more than guilty of doing my fair share of giving motorcycle riders a bad name amongst the general driving public. I even got in trouble in Bible School for doing wheelies on a cafe GS1000E down the center road on campus. Nothing was sacred.

But now I am an old fat man who has matured, and with the help of about 16,000 miles of 2-up on a couple of S10's I have even turned the corner towards "motorcycle gentleman-ess", if there is such a thing.

So this whole search for more power just seemed a bit silly to me. (for perhaps the first time in my riding life) I'm one of the many who are a bit surprised by how much I love this bike and how much it has influenced me. And although it ran a bit rough brand new out of the box, it seems to have settled very nicely and I am no longer fussing with how it behaves.

And then I found myself at the autoparts store a couple of days ago. On the same isle as the air gauge I stopped to get, was a small pack of assorted fuses.

I'm sold. Dangit.

Not because of any dyno chart
Not because of increased performance
Not even because it's fun to find a cheat

It simply drives nicer. Far better fueling down low.

I have been humbled. (happens to me a lot these days)

As far what I think is the explanation? I don't know if I am right, of course, but I got a bit of a different view on this now.

No doubt it is a different "mode" than T or S.
Some have described that it overrides the T mode. I suggest that it is simply a third available "mode". (or a 3rd fueling map)
It isn't that it "overrides" the T mode or the S mode. It's simply that only one of the 3 modes can be active at a given moment.

Put another way.......

If when you toggled the OEM mode switch, you first got T and next got S and THEN next got this map\mode you would just consider it a 3rd map. AND I argue this map WOULD be the 3rd map! (it would NOT be nested between T and S)

Furthermore, although this map is only accessable by shorting the clutch safety switch, it seems to be a legitimate map for the entire rpm range and for all 6 gears. Can that actually be an accident?

Seriously, nobody at Yamaha ever considered that this would eventually be discovered? Really?

And do you HAVE to have a "clutch in" map to begin with? No carb bike does. (obviously) And I bet many fuelies don't either.

Call me crazy but this is an Easter Egg. (someone else thought so earlier, I believe) It is MEANT to be found. And it is a gift from Yamaha. It is a fantastic way to get around the EPA. It is the map Yamaha WANTED to give the bike but just can't, openly.

Even if it ain't true, and we find out some day an official explanation that differs, it still IS my 3rd map. It just takes 2 handle bar mounted switches to switch between them elegantly.

Yep, my S10 only needs 2 maps. I will ride this beast in a monsoon, so I must have the T mode available. But it is the S mode that is in jeapordy for me. Why bother?


iPad - TapaTalk HD

 

[GrahamD]

AGREE.

Not YAMAHA's fault for not complying with emissions now is it.
Just hope that no one in the [insert pollution control authority of choice] has a word to YAMAHA about it then.

 

[Tremor38]

Re: Re: Instantly 15 more free HP

Kept my mouth shut for the 45+ days of this thread. But I have caught up with it every single login.

I've gotta be honest though and admit that I have contemplated the whole debate with a bit of arrogance. Afterall, it is in the rear view mirror of life that you will find more than my fair share of hooliganism on 2 wheels. And I was more than guilty of doing my fair share of giving motorcycle riders a bad name amongst the general driving public. I even got in trouble in Bible School for doing wheelies on a cafe GS1000E down the center road on campus. Nothing was sacred.

But now I am an old fat man who has matured, and with the help of about 16,000 miles of 2-up on a couple of S10's I have even turned the corner towards "motorcycle gentleman-ess", if there is such a thing.

So this whole search for more power just seemed a bit silly to me. (for perhaps the first time in my riding life) I'm one of the many who are a bit surprised by how much I love this bike and how much it has influenced me. And although it ran a bit rough brand new out of the box, it seems to have settled very nicely and I am no longer fussing with how it behaves.

And then I found myself at the autoparts store a couple of days ago. On the same isle as the air gauge I stopped to get, was a small pack of assorted fuses.

I'm sold. Dangit.

Not because of any dyno chart
Not because of increased performance
Not even because it's fun to find a cheat

It simply drives nicer. Far better fueling down low.

I have been humbled. (happens to me a lot these days)

As far what I think is the explanation? I don't know if I am right, of course, but I got a bit of a different view on this now.

No doubt it is a different "mode" than T or S.
Some have described that it overrides the T mode. I suggest that it is simply a third available "mode". (or a 3rd fueling map)
It isn't that it "overrides" the T mode or the S mode. It's simply that only one of the 3 modes can be active at a given moment.

Put another way.......

If when you toggled the OEM mode switch, you first got T and next got S and THEN next got this map\mode you would just consider it a 3rd map. AND I argue this map WOULD be the 3rd map! (it would NOT be nested between T and S)

Furthermore, although this map is only accessable by shorting the clutch safety switch, it seems to be a legitimate map for the entire rpm range and for all 6 gears. Can that actually be an accident?

Seriously, nobody at Yamaha ever considered that this would eventually be discovered? Really?

And do you HAVE to have a "clutch in" map to begin with? No carb bike does. (obviously) And I bet many fuelies don't either.

Call me crazy but this is an Easter Egg. (someone else thought so earlier, I believe) It is MEANT to be found. And it is a gift from Yamaha. It is a fantastic way to get around the EPA. It is the map Yamaha WANTED to give the bike but just can't, openly.

Even if it ain't true, and we find out some day an official explanation that differs, it still IS my 3rd map. It just takes 2 handle bar mounted switches to switch between them elegantly.

Yep, my S10 only needs 2 maps. I will ride this beast in a monsoon, so I must have the T mode available. But it is the S mode that is in jeapordy for me. Why bother?


iPad - TapaTalk HD

Since Ron H. reports worse roll-on performance at 6000' elevation with this mod, one of the changes might be a richer AFR. It would be nice to see AFR results from one of these dyno runs to confirm what he's experiencing. This might be a cheap way to richen the mixture after installing catless headers.

Sent from my F-05D using Tapatalk 2

 

[protondecay123]

Can that actually be an accident?

Seriously, nobody at Yamaha ever considered that this would eventually be discovered? Really?

Call me crazy but this is an Easter Egg.

Well Crazy , maybe an engineer whispered the secret hiding place? One thought is that the full power is made available for smoother transitions between shifts and for slipping the clutch. But regardless it's a wonderful find!

 

[big dave]

I suspect it was done with a purpose but not to enhance the performance.
My opinion is that it was done to alter the mixture temporarily and assist in the starting of the bike whilst in gear with the clutch disengaged after stalling the motor.

BD

 

[Monty]

Either way, it does what I need it to do so I am happy.

Matt

Sent from my GT-I9100 using Tapatalk 2

 

[~TABASCO~]

Re: Re: Instantly 15 more free HP

Since Ron H. reports worse roll-on performance at 6000' elevation with this mod, one of the changes might be a richer AFR. It would be nice to see AFR results from one of these dyno runs to confirm what he's experiencing. This might be a cheap way to richen the mixture after installing catless headers.

Sent from my F-05D using Tapatalk 2

That's what I reported as well with my other parts installed.. Down low it was even more responsive. But much past 3K it became more flat & Blaaaaaaaaaa....... I took the jumper back out. The bottom is not as sharp and crisp but I got back all the awesomeness of power...
Someone with a PCV & AT can "0" out there map and get info on what the fuel is doing with the switch off & on.......

 

[markjenn]

The word "map" gets thrown around, but just to be clear, we have no evidence that the switch does anything with the mixture map. This is consistent with folks reporting little or no significant change in fuel mileage.

It appears the "switch mod" messes with the fly-by-wire system affecting how much butterfly movement you get with the throttle in the lower three gears. For all practical purposes, it eliminates the power reduction in low- to mid-range RPM build into the system, more specifically, the approximately 20% (at max) power reduction the system makes in these gears between about 2500 RPM and 5500 RPM. In other gears or other RPM ranges (compared to T mode) it probably does nothing.

Just in case, others aren't tracking it, the thread on advrider.com has some pretty definitive dyno results and good discussion.

http://www.advrider.com/forums/showthread.php?t=797977

I believe this is a Euro spec bike, so the question is still out there about whether US bikes are similar. I suspect they are.

- Mark

 

[hANNAbONE]

I'm living at around 700 ft and the mod is the nuts.!

JustBob has it completed too and comments the same...It has transformed the scoot.

Elevation might be counter-productive for the mod, sadly.

I will not be taking the mod out - nor will I be sending in my bike in for CO2, TPS, or ECU changes.

I've done nothing but add a Staintune can on my ride. I must have one of the good ones.

 

[Bundu]

I'm living at around 700 ft and the mod is the nuts.!

JustBob has it completed too and comments the same...It has transformed the scoot.

Elevation might be counter-productive for the mod, sadly.

I will not be taking the mod out - nor will I be sending in my bike in for CO2, TPS, or ECU changes.

I've done nothing but add a Staintune can on my ride. I must have one of the good ones.

I'm at 1800m and my bike has been tranformed into something that I no longer can criticise for lack of power in 1st 3 gears

 

[Rasher]

Either way, it does what I need it to do so I am happy.

Matt

Exactly, at the very least it staves my instant desire for a remap.

I will get my dyno man to compare the AF with and without mod when I pop it on the dyno, but I have not noticed any reduction in top end power, just the gains off the bottom in lower gears - and if the top end is affected I can just switch it off when on open roads and turn it back on again for round town / back lanes / Alpine passes - everyone can have the best of both worlds for less than a tenner (dollars or pounds)

 

[snakebitten]

Exactly, at the very least it staves my instant desire for a remap.

I will get my dyno man to compare the AF with and without mod when I pop it on the dyno, but I have not noticed any reduction in top end power, just the gains off the bottom in lower gears - and if the top end is affected I can just switch it off when on open roads and turn it back on again for round town / back lanes / Alpine passes - everyone can have the best of both worlds for less than a tenner (dollars or pounds)

Exactly!
Just add a switch to the mod and you now have all 3 modes at your fingertips. Regardless of what we call them.

I personally have reason to believe I would use all 3. (With the "nameless" mode being my daily default)


iPad - TapaTalk HD

 

[jajpko]

I wish I had a way to do the Dyno tests. There is no doubt the mod cut my power. Even the wife noticed when I rode just normal up to the house and up the driveway. Sounded "flat". She didn't say flat, but as Tabasco said the word is what my bike feels like with the mod "flat".

Hey Ron, you live in Denver CO.. Please don't tell me you don't have a Dyno near by.. Let the moths out and make a run.. ::025::

 

[vilageidgit]

sv650 clutch switch affect on fuel injector pulse width
anyone try it on the wr250

 

[coastie]

Well that just about sums it up.

 

[Tremor38]

Re: Re: Instantly 15 more free HP

The word "map" gets thrown around, but just to be clear, we have no evidence that the switch does anything with the mixture map. This is consistent with folks reporting little or no significant change in fuel mileage.

It appears the "switch mod" messes with the fly-by-wire system affecting how much butterfly movement you get with the throttle in the lower three gears. For all practical purposes, it eliminates the power reduction in low- to mid-range RPM build into the system, more specifically, the approximately 20% (at max) power reduction the system makes in these gears between about 2500 RPM and 5500 RPM. In other gears or other RPM ranges (compared to T mode) it probably does nothing.

Just in case, others aren't tracking it, the thread on advrider.com has some pretty definitive dyno results and good discussion.

http://www.advrider.com/forums/showthread.php?t=797977

I believe this is a Euro spec bike, so the question is still out there about whether US bikes are similar. I suspect they are.

- Mark

I don't see AFR readings in any of those results, so there also is nothing to disprove that the injectors pulsewidths might also be increased.

Sent from my F-05D using Tapatalk 2

 

[Cykel]

Nice to see some dyno results showing up. Hopefully someone at higher elevation can throw one up as well.

I finally gave the short a shot on my last tank of fuel. I noticed primarily that the bike just felt smoother as opposed to faster. I think the bike actually feels a bit quicker without the switch shorted, due to the 4k crossing. The speedometer tells me I'm wrong, though, by a pretty significant margin. At the same spot on my commute (opening up the throttle after a U-Turn) I was surprised to be about 10mph slower when I checked the speedo...even though it didn't feel that I had gone any slower.

Obviously lots of factors play in, but my take on the short so far has been that it feels a bit smoother/slower but is actually faster.

Can't really speak to fuel economy changes without a more extended test.

 

[Brntrt]

Kept my mouth shut for the 45+ days of this thread. But I have caught up with it every single login.

I've gotta be honest though and admit that I have contemplated the whole debate with a bit of arrogance. Afterall, it is in the rear view mirror of life that you will find more than my fair share of hooliganism on 2 wheels. And I was more than guilty of doing my fair share of giving motorcycle riders a bad name amongst the general driving public. I even got in trouble in Bible School for doing wheelies on a cafe GS1000E down the center road on campus. Nothing was sacred.

But now I am an old fat man who has matured, and with the help of about 16,000 miles of 2-up on a couple of S10's I have even turned the corner towards "motorcycle gentleman-ess", if there is such a thing.

So this whole search for more power just seemed a bit silly to me. (for perhaps the first time in my riding life) I'm one of the many who are a bit surprised by how much I love this bike and how much it has influenced me. And although it ran a bit rough brand new out of the box, it seems to have settled very nicely and I am no longer fussing with how it behaves.

And then I found myself at the autoparts store a couple of days ago. On the same isle as the air gauge I stopped to get, was a small pack of assorted fuses.

I'm sold. Dangit.

Not because of any dyno chart
Not because of increased performance
Not even because it's fun to find a cheat

It simply drives nicer. Far better fueling down low.

I have been humbled. (happens to me a lot these days)

As far what I think is the explanation? I don't know if I am right, of course, but I got a bit of a different view on this now.

No doubt it is a different "mode" than T or S.
Some have described that it overrides the T mode. I suggest that it is simply a third available "mode". (or a 3rd fueling map)
It isn't that it "overrides" the T mode or the S mode. It's simply that only one of the 3 modes can be active at a given moment.

Put another way.......

If when you toggled the OEM mode switch, you first got T and next got S and THEN next got this map\mode you would just consider it a 3rd map. AND I argue this map WOULD be the 3rd map! (it would NOT be nested between T and S)

Furthermore, although this map is only accessable by shorting the clutch safety switch, it seems to be a legitimate map for the entire rpm range and for all 6 gears. Can that actually be an accident?

Seriously, nobody at Yamaha ever considered that this would eventually be discovered? Really?

And do you HAVE to have a "clutch in" map to begin with? No carb bike does. (obviously) And I bet many fuelies don't either.

Call me crazy but this is an Easter Egg. (someone else thought so earlier, I believe) It is MEANT to be found. And it is a gift from Yamaha. It is a fantastic way to get around the EPA. It is the map Yamaha WANTED to give the bike but just can't, openly.

Even if it ain't true, and we find out some day an official explanation that differs, it still IS my 3rd map. It just takes 2 handle bar mounted switches to switch between them elegantly.

Yep, my S10 only needs 2 maps. I will ride this beast in a monsoon, so I must have the T mode available. But it is the S mode that is in jeapordy for me. Why bother?


iPad - TapaTalk HD

Well said. Like reading my own words.


Sent from my iPhone using Tapatalk

Mark