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Hog Head

Member Since 2003-11-26
Offline Last Active Yesterday, 10:52
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Posts I've Made

In Topic: Green Valley Homeowners Assoc

2012-05-22 20:29:14

Sunday June 17, 2012.  2:00 -5:00 pm.

Mae Rim District Meeting Hall,

( located between the Land Office and Ampur Building, Downtown Mae Rim)


Inagural meeting to form a Home Owners Assoc


In Topic: Pimp My Versys

2012-05-22 09:51:42

View Postcommande, on 2012-05-21 13:20:39, said:

Straight from Power Commander Website; performed on a Versys, not sure year model but little to nothing has changed - as one can see, very little performance increase except in the lower throttle range where Torque matters more than HP which is typical with add-on fuel injection computers; torque gets you going faster from start, not horse power and one can see there is no torque measurement provided which is typical from after market fuel controller providers unless you are going with something like MOTEC or another very high end race computer application because they don't want to show this number because generally it's 0-2 (sometimes nothing) or even in some cases less than factory specs.  

Additionally it doesn't state, or maybe I missed something, so feel free to correct me, are any other things that where changed such as exhaust, air filter, spark plugs, etc which would invalidate the computers added performance as a stand alone add-on performance improver.  So without this additional information, if something else was changed you won't get the same performance increase.  Is this worth approximately 15,000+ baht after import fees and shipping, some would say yes, some would say no.

It's all a matter of what one wants but the fact is this type of performance gain in regards to improved speed or power is minimal at best.  Bike or car might idle better or have smoother transition throughout the throttle range BUT that doesn't equate to improved performance in relation to power and it is also in relations to environmental conditions such as atmospheric pressure, air temp, etc.

I thought this what I said this a week ago:
"What is not debatable is that one can make the bike run better than the factory as one is not constrained by emissions or noise regulations. On a stock bike the descerning rider will see  smoother running and no dead spots in throttle response. On a slightly modified bike  it is far more noticable and almost a given when one starts increasing air flow through the engine."
Perhaps I need to be a bit clearer

In Topic: Pimp My Versys

2012-05-19 16:35:12

I beg to disagree as this is not how PC Autotuner works
The PC Autotune logs AFR under real world loaded conditions and then suggests a trim to bring the AFR to your specified ratio. It does not change the fuel/ignition maps on its own. This specified ratio can be what ever custom map you enter or a canned map based on variables such as pipe, air filter etc.

It is difficult to imagine any more accurate method than datalogging under actual riding conditions, as opposed to the operator dependent inertia dyno using the test, fiddle, retest, repeat procedure. The PC-V with Autotuner will give you an exact AFR of 13.1 under loaded conditions (specific to your weight) at all RPM and throttle position - what can be more accurate than that?

My personal experience, and from what I have read, suggests that a properly run bike on PC Autotuner is equal to or better than what a good operator can achieve a dyno. This is done at a lower cost, quicker, something that a savy Owner can easily do. Here in CM there is no dyno, and more importantly if there was one, it would need someone who really knows what they are doing.
When you start changing engine internals is where the Autotuner really shines as it is virtually idiotproof.

The Lambda sensor is in fact removed and by-passed so the factory ECU cannot fiddle with the new map, and not because you are running too rich. If it is too rich you have the wrong map and need to go through the Autotune procedure

Does it make a significant amount more power? 7 Hp on a Versys is 10% and IMHO a significant increase. That this is due to the Autouner and PCV alone is questionable, but believable in conjunction with a pipe and air filter/air box mods.

What is not debatable is that one can make the bike run better than the factory as one is not constrained by emissions or noise regulations. On a stock bike the descerning rider will see  smoother running and no dead spots in throttle response. On a slightly modified bike  it is far more noticable and almost a given when one starts increasing air flow through the engine.
Internal engine mods demand changes to the ECU

In Topic: Pimp My Versys

2012-05-19 13:35:33

I am doing the Autotune procedure on my PCV now.

There is no way around the fact that if you want more power then you need to burn more fuel. OTOH if smooth running with no dead spots are your goal then the PC can do that as well

It all depends on the fuel map you use. In my case I really do not give a toss about the minimal increase in fuel consumption, and am going for max power throught the rev range.
You could have a happy medium and lean it out at crusisng speeds, then more fuel at WFO. For example 13.6:1 AFR (Air Fuel Ratio) at 20% throttle and 5-6000 rpm and 13.1 at 75% throttle

"Up to you" and tune it "as you wish"

In Topic: Headlight Modulator/Flasher

2012-05-18 18:20:43

I asked about a year or two on GT-Rider about legality and IIRC no answer

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