| Author | Message | ||
     Hdwrenchtx |
I had some free time at work today so I decided to put my bike on the dyno and see how it was running with the EBR race ECM. I had no complaints with how the bike was running before putting it on the dyno. I just wanted to know for sure. I knew there was NO WAY my bike was running as lean as some of the other graphs I have seen posted. 2010 1125R HMF slip on, K&N filter, EBR race ECM 02 sensors ON, 91 octane, air box lid on, denoided. I will post 4 graphs. 4th gear wide open throttle power/torque 4th gear wide open throttle AFR Air Fuel Ration crusing 75 MPH 6th gear Air Fuel Ratio at idle     I think they look pretty good for a "plug and play" map. If I had the tools I would make some changes but it is nothing as extreme as some others apparently experienced. Tomorrow I plan to run my 1125CR with EBR race ecm K&N and FMF slip on. This will be with another ECM. I bought 2. (Message edited by hdwrenchtx on February 16, 2010) | ||
| Ridenusa4l |
Hd, How many miles you got on that bike? Because i know after a couple thousand mi. and a good break in, you'll get more power outta the beast! BTW- not to shabby, but still a little suprised at how lean it is at 4k...at least it runs good!! Jake | ||
| Hdwrenchtx |
750 miles on the bike. yes i'd like try to tune that lean spot out.. dont have the cash for the software etc right now | ||
| Bob_thompson |
Chris, how did they determine the A/F ratios? With a wide band sensor and added bung's for them or just a sniffer in the exhaust pipe? Also, with 02's connected how many miles/time was spent letting the ECM learn? Still looks lean to me but with my test ride today I noticed a good difference in the tune with much better performance and it ran cooler then same weather before. I wonder if it would be any different with the 02's disconnected? Thanks for an objective post. You pleased so far? Bob | ||
| Ridenusa4l |
o ok, i know what you mean... btw- sorry if this seems pushy...but do the FMF and HMF have a different sound? i.e. which one is louder, and/or deeper...and which one feels like it has more power (if any differences) THANX Jake | ||
| Hdwrenchtx |
Bob the air fuel was measured using a sniffer in the exhaust pipe connected to a wide band 02 sensor. I realize testing directly at the 02's on the bike would be more accurate but I didnt have that much time and honestly didnt want to mess with it. At wide open throttle it is a little lean at 4500 or so not too bad maybe 3/4 of a point. I think the bike has 100 miles or so with the new ECM yes i am pleased so far. Jake I think the FMF is a little louder. The HMF i think is a little deeper at idle and sounds more muffled at higher rpms i am told. I think overall they are pretty close. I took a video today of them I'll try to post it up. | ||
| Edmbueller |
HDwrench: Thanks SO much for your effort! I have ordered a new pipe ( Barker's) and have really been struggling with all the DRAMA on here lately. Just straight data - that's the ticket. Thanks again. Darcy | ||
| Fresnobuell |
Still seems weird that there are any lean spots at all--don't they have free reign to use as much fuel as necessary? | ||
| Freight_dog |
Would like to see baseline runs... | ||
| Hdwrenchtx |
dont have any. dont see me putting it back to stock unless i get real bored. lol actually it was kind of a PITA to get the bike to even fit on our dyno. we arent a buell dealer so we are not normally set up to run bikes with this short of a wheelbase. I think I will dyno my CR tomorrow and put the dyno back like it was. There is a guy at work I am trying to talk in to letting me dyno his bike tomorrow. stock ecm and air cleaner with fmf slip on. that way I will have something to compare my race ecm and k&N and fmf slip on to | ||
| Moosestang |
I'm stilling waiting to see a stock bike with race ecm or rather another one. I can get a PC-5 with custom map for $480, so just over $500 after sales tax. I'd assume the pc-5 is the way to go at this point. | ||
| Hdwrenchtx |
Good luck with that. Pretty much all we do with power commanders is uninstall them and tune the ECM directly | ||
| Blackflash |
No baseline? | ||
| Moosestang |
Good luck with that. Pretty much all we do with power commanders is uninstall them and tune the ECM directly It must work better on a buell because the first report looks better than any race ecm dyno I've seen. Check out Hellgates results on the other buell forum. | ||
| Hdwrenchtx |
I'll look for it | ||
| Hdwrenchtx |
no baseline. when the bike was stock I decided I wasnt going to dyno it because it was a PITA to set up the dyno for the short wheelbase. The only reason I ended up dynoing it today was because I knew there was no way in hell my bike was running as lean as some people claimed theirs did with this ecm and I wanted to see for myself. | ||
| Thefleshrocket |
It looks like power below 5000rpm is definitely taking a hit due to the lean condition. Once the mixture richens up, the torque flattens out. The question is, at what point is the mixture lean enough that it hurts power? Is optimum power with the Helicon found at 14:1, 13.5:1, 13:1, etc? Clearly 15:1 is too lean, but I'd think that maintaining at leanest a 14:1 under WOT would be best. In fact, these dyno results seem to mesh with Justa4banger's. He noticed a very lean AFR at the lower end of the RPM range and said that he had to gently roll on the throttle when starting the dyno run to avoid that extreme lean condition. It would seem like the EBR ECM's tune is noticeably leaner across the board than the stock ECM which hovers between 13.5:1 and 14:1, at least at WOT. However, with so many people claiming that rideability has improved with the EBR ECM, one must wonder how the EBR ECM's tune deviates from the stock ECM at part throttle and part load. Additionally, one must also wonder if the EBR ECM is even necessary to produce peak power when compared to stock, since the EBR ECM's tune seems to run leaner than stock at many points throughout the RPM range. Also, I don't notice the significant bump in midrange power and torque that seems to be apparent in bikes that have been given the Old Sweaty Balls makeover. Perhaps the EBR ECM doesn't advance timing as much under WOT? I say that based on the suspicion that much of the extra power from Old Sweaty came because of more aggressive timing. What I'd really like to see is dyno charts and AFR readings straight from EBR. If EBR could show us those results and say "this is how our bike performed, if yours is set up similarly it should perform similarly", then we'd know for sure what to expect and when to suspect that something is amiss. But given that Hdwrenchtx and Justa4banger seem to be experiencing at least somewhat similar AFRs, I have a hard time believing that there is something wrong with just Justa4banger's ECM. (Message edited by thefleshrocket on February 16, 2010) (Message edited by thefleshrocket on February 16, 2010) | ||
| D_adams |
I'm just wondering, is 14:1 going to be considered an acceptable air/fuel ratio for these bikes? Mine runs fine at that right now and it seems like a few run leaner, but not many run richer unless they've been tuned and had the O2 sensors disabled. | ||
| Hdwrenchtx |
Couldn't say I quit reading that thread long ago. I thought I saw graphs that were a lot leaner than what I posted. I got tired of trying to read between all the bullshit to see the facts. | ||
| Justa4banger |
Thank you HDwrench.... | ||
| Blackflash |
That afr chart looks horrible .Easy,j4b and This post shows me that this ecm is not a plug and play as its stated when purchased.Every dyno chart has shown lean.Wtf is up with that.Are they trying to destroy are bikes now that they quit making them.Are they trying to put them to rest for good by blowing are motors up??? | ||
| Rpm4x4 |
Before you rant like that, how many EBR race ecm equipt bikes have blown up? | ||
| Easyrider |
Hdwrenchtx, The AF looks like a stock ecm, In my opinion, not good, what happend when you disconnected the 02 sensors... | ||
| Justa4banger |
BF, thats going a little over the top for sure. and theres no need for it. there is a reason for some concern, but going as far as blowing up... thats a bit much. | ||
| Hdwrenchtx |
I only ran it with o2 sensors on. Hopefully tomorrow I will be able to run a stock ECM fmf slip on bike vs a ebr race ECM fmf slip on bike. | ||
| Freight_dog |
Didn't I read on here that EBR didn't even make the tune for slip-ons, FMF did? I also read that they just did a global adjustment for pump gas, correct? Maybe some additional mapping is needed on this tune. | ||
| Dannybuell |
Hdwrenchtx Your work looks great Looking forward to the next round. I am happy to hear that you are enjoying the pump gas race ecm. dannybuell (Message edited by dannybuell on February 17, 2010) | ||
| Mountainstorm |
Thanks for the info HDwrenchtx. I think the apparent lean is from WOT pulls starting at 4K. I dunno how often that condition actually occurs in real life or on the track. I hardly ever go WOT which might explain why I don't feel any lean spots through my butt dyno. | ||
| D_adams |
Funny, I do that dang near every night headed home from work going down the ramp. The guy I ride with has an RSV1000 and he gets me on the tip in at the corner and I catch him about 1/2 way down the ramp. I hit the corner doing about 35 in 2nd gear, straighten up and hammer it. I had my butt dyno recalibrated at the end of last year and it's accuracy is within 2 hp. We haven't put his bike on a dyno yet, but I'm thinking his is about 115 hp or so. | ||
| Hdwrenchtx |
Yes I agree. Normally I don't think you would go wide open at that low an rpm. I wasn't real sure where to start my runs rpm wise. In normal riding you would never be in that area. |
