| Author |
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Lemonchili_x1
| | Posted on Thursday, September 09, 2010 - 10:10 pm: | 
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I'm running the race ECM with a (modded) stock exhaust, runs great.
"...he says it will be fine and to tell them in the notes that I have a stock exhaust and I want the "best drive" config. Anybody know what that refers to?"
Anybody know?
Anybody here running with the reduced engine braking option on the street? I've been swapping between my standard ECM and race ECM. I think I'll send it back and get reprogrammed without the reduced engine braking, but maybe after I do a track day on it. |
Juniorkirk
| | Posted on Thursday, September 09, 2010 - 10:40 pm: |
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I dont see how you guys are getting such poor gas mileage. I ride mine mixed. It's may daily commuter and my weekend fun rider. I use to ride Palomar Mountain about 4 times a day on the weekend (6500 feet elevation change in just over 7 miles), and i actually got better gas mileage when i'm on Palomar. Just going back and forth to work and a nice cruise every day after work i was getting about 44mpg, and then the Palomar days averaged around 53mpg....on stock everything except the K&N filter. |
Easyrider
| | Posted on Friday, September 10, 2010 - 01:01 am: |
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interesting topic, I just like to follow, I think everybody can do the math here.... |
Chameleon
| | Posted on Friday, September 10, 2010 - 01:28 am: |
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One thing I have recently come to realize regarding the math of Average MPG is that the ECU and/or IC (dash) lies... Or at least doesn't tell the whole story.
I manually calculated my Average MPG (miles traveled on trip meter divided by gallons put into tank at fill up) and derived a figure significantly greater than the Average MPG displayed on the IC. I then performed some calculations trying to discover what exactly the IC was displaying and I believe that the IC targets the point when the fuel light is illuminated as the lower boundary in the equation. The IC seems to think that fuel light on = empty. Clearly this is wrong!
Can anyone else confirm that their manual calculation of average MPG is higher than what's displayed on the IC's Average MPG?
Of course, it's only valid if you reset the Average and one of the trip meters when you fill up. |
Ponti1
| | Posted on Friday, September 10, 2010 - 02:04 am: |
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Chameleon, I have no useful info for you, but do you then think that perhaps a valid test would be to reset average while fuel light is already on? If the calculation assumes empty while low fuel, then I would assume the average should remain at zero while riding a few miles with low fuel.
Just an idea of how to test off the top of my head, but I could be spewing ridiculousness. It is very far past my bed time, after all. |
Catalan42
| | Posted on Friday, September 10, 2010 - 04:09 am: |
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My fuel MPG has been almost exactly identical on all my air cooled V-twins:
2007 Harley XL 1200R Roadster (all SE)
2005 Buell XB12S Lightning
2006 Buell XB12X Ulysses
2008 Buell 1125R....? (1st ride yesterday)
The 3 1200cc 45-deg V-twins all had almost exactly the same MPG (no matter how I rode them). I got 40 mpg almost exactly even with "sporty" riding on all.
I once got nearly 50 MPG on the Roadster when ridden at the speed limit for a complete tank on the freeway. I think the EPA said it was 55 MPG but that never works out (with cars or anything) in the real world.
Alan |
Duphuckincati
| | Posted on Friday, September 10, 2010 - 08:55 pm: |
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Just had a generally sporty ride with the race ecm and stock pipe (on a racetrack of course!) and had a few moments (or so) of 100+mph, no highway and very little in town (very weird track). 36.7mpg. If anyone cares... |
Red93stang
| | Posted on Sunday, September 12, 2010 - 10:19 pm: |
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Got a Erik Buell Racing ECM "best drive" last Tuesday, rained all week of course! Went on a ride today and got 35 mph average. I was not easy on it at all! The bucking and jerking is gone at the lower rpm. I noticed more low end and lots more midrange.
The ECM is a perfect purchase for those that want just a little more out their stock bike. I can say I was amazed at the difference of drivabiltiy alone. My two cents! |
Zac4mac
| | Posted on Sunday, September 12, 2010 - 10:58 pm: |
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I still haven't dyno'd Loretta after getting the race ECM.
I miss the engine braking a little, but not enough to bother Mike with sending it back.
The improvement in rideability, the return of warming engine temp instead of flashing COLD and lower idle were well worth the price.
Z |
Steeleagle
| | Posted on Sunday, September 12, 2010 - 11:20 pm: |
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Hmmm. I got my new ECM from Erik Buell Racing and mine still flashes "Cold" during warmup. Are there variations in their flashes? |
Red93stang
| | Posted on Sunday, September 12, 2010 - 11:31 pm: |
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Mine still flashes cold as well. Wish it said, This thing is badass Hold On! |
Dmhines
| | Posted on Monday, September 13, 2010 - 08:47 am: |
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If you request an ECM with stock exhaust ... Erik Buell Racing is tweaking the factory tune instead of tweaking the race tune. This makes your bike more streetable and bypasses some of the stumbling issues folks had with the stock exhaust and full race tune.
This is why if you request an ECM for a bike with stock exhaust you get both COLD AT START and also ENGINE BRAKING. I know the engine braking can be removed upon request ... I assume COLD START message can as well. |
Milleniumx1
| | Posted on Monday, September 13, 2010 - 11:21 am: |
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It seems these things are programmed differently, even off the shelf ... Not entirely surprising given the circumstances and the ability to customize.
On my off-the-shelf E B R ECM (stock exhaust) ordered a few months back, it does not flash COLD ... Nor would I want it too. Engine braking is reduced, but not eliminated. Works for me!
Mike |
Dmhines
| | Posted on Tuesday, September 14, 2010 - 04:27 pm: |
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My original Race ECM for stock exhaust did not flash COLD and had reduced engine braking. However ... I had stumbling between 4500 to 5500 RPM. It was replaced with the one that does flash COLD and has engine braking ... and was told I could return it and have the engine braking removed ... which I plan to do after it's too cold to ride this season. |
Chameleon
| | Posted on Tuesday, September 14, 2010 - 04:35 pm: |
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Why remove engine braking? I LOVE engine braking. |
Jdugger
| | Posted on Tuesday, September 14, 2010 - 04:36 pm: |
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> Why remove engine braking?
Because it disrupts the stability of the bike in hard braking/corner entry situations. |
Milleniumx1
| | Posted on Tuesday, September 14, 2010 - 05:51 pm: |
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I like engine braking too, but the slightly reduced variety was even better once I got used to it. At high RPM's, I notice less braking than I used to. At midrange (5-7K), it seems about the same as it used to be. Realize of course I'm not going to impress anyone with my canyon carving skills - But I have a damn good time!
Mike |
Chameleon
| | Posted on Wednesday, September 15, 2010 - 09:47 am: |
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So the engine braking is removed from the higher RPMs more than the lower RPMs? |
Milleniumx1
| | Posted on Wednesday, September 15, 2010 - 12:48 pm: |
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Chameleon, it seems that way to me ... But in fairness, I've spent less time at high RPM's than many have. But I know at the sweet spot I like (5 - 7.5'ish), the engine braking seems almost the same as OEM. I was actually glad to see that since I like it, even though I realize better riders might not. But up top, it seems to not have much, at least not as much as I remember. It's been 1000 miles on the Erik Buell Racing unit, can't imagine going back! |
Catalan42
| | Posted on Friday, September 17, 2010 - 04:20 am: |
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I just installed my Erik Buell Racing race ECM today on a 2008 1125R with stock exhaust.
Now, the bike has much improved driveability coming off idle (no jerking like before), and it does not flash COLD at startup (gives CT numbers all the time). It seems smoother at all speeds, maybe a bit more torque(?).
Don't ask me how, but the exhaust also seems to sound better than stock (a little deeper). Also, the engine doesn't seem to rattle as much above 7000 RPM.
Engine braking seems to be unchanged. I was kinda looking forward to no engine braking, so I may return the ECM and have it reflashed after riding my favorite hills more.
Following the advice here, I disconnect the battery, swapped ECMs (located under the left pod fairing), reconnected battery, and did a cold engine Throttle Position Sensor reset. Wasn't sure if the TPS reset was required, but it worked (shows 2% - 100% in the diagnostic mode). Went out and rode (only 20 miles so far). |
_gdkp_
| | Posted on Friday, September 17, 2010 - 06:09 am: |
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@catalon
yesterday i also installed the ECM (K&N air cleaner + stock exhaust) - itīs so nice! No rattling needle, engine is running such more "round" no funny noises and idle is such as perfekt (it could be a 4 cyl. ^^)...
I also replace the ECM like you, and many guys meant that there should be error messages in DIAG-Mode... it wasnīt! - runs perfect, like i never changed that ECM  |
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