| Author | Message | ||
     Aj2010 |
Looking for a bit of help. I have an ex-box exhaust for my 1125R, but I do not know which ecm to go with? Does anybody have any experience with this exhaust, or any information. I sent an email to EBR and they responded but had no recommendation as they have not done any testing with this system. It does have a catalyst built in. Thanks in advance for any help. | ||
| 1125rcya |
I would like to see a picture of this ex-box exhaust. | ||
| D_adams |
http://www.sportbikes.net/forums/buell/419173-qd-e x-box-underbike-exhaust-buell-1125-a.html  If it makes more than 135 hp on the average 1125, I'd be surprised. Similar size collector and mid pipe to a jardine, so that would be a good starting point if you can't find anything else for a map. From what I've gathered, it's an Italian company, they mostly do Ducati's and the like and they're not cheap. I don't think they made many of them. | ||
| Aj2010 |
Thanks for th info D Adams, the mid pipe on mine has one more step in it. I thought it was just another bent piece welded together, but it is actually a bit larger in diameter. | ||
| Aj2010 |
I did a bit of measuring, the id of the front section just after the two pipes come together is 50mm the next section is 53mm id. I am hoping to get the ecm thing right the first time as buying multiple ecm's in order to find what works best, is just not an option. | ||
| D_adams |
So, roughly 2", then a very slight step up in size, the 53 mm step up section means very little for change of flow/velocity. 63 mm would be close to 2.5", so the ecm for mine will probably not work properly. Based on it's initial shape and size, I'd still go with a jardine or maybe an fmf ecm. Your best bet is to manually tune it with widebands though. | ||
| Fluffy282 |
Why not have it tuned with a power commander? | ||
| Aj2010 |
So either way I am in for one of those "learning experiences". Is there a way to do something with the stock ecm without totally messing things up? What would I need to buy and do? I have heard about ecm spy and similar. But I have not had any experience with that sort of thing and have been leery of it. | ||
| Matteson |
All I know is ecmspy mono requires a donation fee. Tunerpro is free. Tunerpro has a slight learning curve. From all I have read datalogging has worked for some. I haven't done it for my Jardine because I'm not sure how to correctly adjust the timing as well as the fueling maps plus I would need wideband o2's to tune for anything other than stoich. For 300 I can get an ecm ready to plug and play without the headaches. | ||
| Aj2010 |
Yes, it's the headaches I would like to avoid. but I am ok with trying this stuff out and learning as long as I have things backed up. I would like to know the total cost before I start buying cables and O2 sensors though. | ||
| Fluffy282 |
Power commander is a piggy back system... I imagine you remove it and it goes back to stock. No additional sensors or headaches required. | ||
| S21125r |
Yes you can backup your existing stock eprom and restore it at any time. I happen to use ECMRead for mono which is a free thing that ECMSpy guy (Gunther?) distributed. For tuning I use Tunerpro but haven't tweaked in a long time so I'm a bit rusty. I haven't done this next part yet but there are a couple of spare inputs to the ECM that you can wire in Wideband signals to and datalog the results through Spy/Tunerpro. Tunerpro has some pretty neat data analysis functions that I think would help you get pretty close - at least as close as you can with widebands anyway. Timing can be adjusted as well in either tool. Bottom line is it will take some learning/logging time and/or several sessions in a dyno room. | ||
| Aj2010 |
Thanks S21125r I am wondering if the first step might not be to use the Jardine map as D Adams suggested. If that works better than stock I would be happy with just a few adjustments to the fan control part of the program. Is it easy to find these maps on th net? Advantages to Tunerpro over Spy or vice versa? | ||
| Matteson |
You won't find a jardine map for the 1125 on the net. | ||
| Jaredc01 |
http://www.erikbuellracing.com/store/models/1125r/ 1125r-preprogrammed-ecm-for-use-with-pump-gas.html Pretty sure there's a Jardine map on there... Unless my eyes are making words appear out of thin air again. | ||
| S21125r |
You wont find FREE maps on the net because it's intellectual property - most likely EBR's. But you can buy the map via a complete replacement ECM from EBR at the link noted above. Alternatively if you found someone that made a custom map for a Jardine at their own expense, and were willing to share, then should be no problem as long as the firmware is the same. If not then you'd have to manually transpose the fuel table values over. | ||
| Matteson |
Ya I am very aware that there is a preprogrammed ecm for sale. But I haven't found a jardine map floating around for free. That's what I thought he was looking for. | ||
| Aj2010 |
Ah yes, free is good. If I knew that I would be happy with the preprogrammed ecm from EBR, I would go that way. If I have to make changes anyway an have to learn how to do that, then is it really much more work to load an entire map or table? Anyway I will continue my modifications to the muffler and mounts in an attempt to tuck it up under the swing arm and make it look more like it was actually built for the 1125. | ||
| Sir_wadsalot |
I love them mufflers but they are pricey, look sharp on KTMs too. Do it right, either get the tuneable EBR ECM, or get a Power Commander, and then have it custom tuned on a dyno. Especially a wierd one like that. | ||
| Aj2010 |
Ok finally some progress, the muffler is at the welding shop and I have the Ducati exhaust hangers in place on the bike. I have to say working with cardboard templates was tedious enough let alone trying to duplicate the same bends with stainless steel. I will post a picture once I have the muffler back. It is tucked up under the swing arm much more than the one in the picture above. Also the internal volume has been increased. | ||
| Sl33py |
Aj2010 - so this isn't a 1125R exhaust (for a ducati?), and internal volume has been increased - how? Custom exhaust or modding an exhaust to basically be custom is going to make a pre-built ECM hard to come by. IIRC there was good luck w/ EBR's generic Race ECM across a lot of exhausts. Perhaps a good starting point. One thing i'm unsure of is whether you can get the Race ECM from EBR and then use Xopti and Tuner software (android app, tunerpro, etc.) to tweak it further, or do you really need the programmable one from EBR? I have a matched ECM for my FMF and love it, but also curious if it's worth tweaking eventually w/ ecmspy or tunerpro software. GL with your project and post up pics! Rob | ||
| Cravacor |
I have a one-off exhaust and EBR recommended the ECM set up for stock exhaust for my purposes. Unless you are a REAL screaming demon, the stock exhaust ECM should do you fine, I mean who here can actually use this bike to its potential? The real benefit of the race ECM (for me) is improved rideability. | ||
| Sl33py |
Cravacor - my only concern is how well the stock ECM can adjust to accommodate/fuel correctly a free'er flowing exhaust. Running too lean and overheating or burning a valve sounds like a bad idea to me. while i can't run the bike like eslick, i definitely can appreciate the tuning that went into his FMF Race ECM. Runs cool and plenty of power... I got his exact map for the same full FMF system on my bike. | ||
| Cravacor |
Maybe try that ECM with your Xbox, Sleep. | ||
| Cravacor |
Never mind, Sleep, I thought you were the OP. I told EBR what exhaust I had & they recommended the race ECM tuned for the stock pipe. | ||
| Figorvonbuellingham |
I used the HMF ecm for the exhaust i made and it worked fantastico! No popping on decel. Incredible throttle response, huge topend. When they tested all those exhausts in the shootout they used the HMF ecu on each one. I thinks its a pretty good all around ecu. Ill be using it with the next exhaust i build. | ||
| D_adams |
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| Sl33py |
Dean - yep that's the one! I called and talked with the guys at EBR when i ordered mine. He actually suggested to skip the programmable race ECM as they'd already done all the tweaking and tuning on the ECM w/ Eslick his winning year. I don't think i have the time, money, skill, or patience to out-do them... It helps i have the identical Full Race FMF System that Eslick had... but that's just a bit of luck. Rear headers were a PITA and negates most of the good besides weight savings (figured about 18lbs lost between stock and FMF system). I wish Al at A S B had done the other FMF (non slip-on) as it was a great option in both SS and Ti. | ||
| D_adams |
Eslick ran the factory race exhaust, not an fmf system.  | ||
| D_adams |
This exhaust on the 1125 RR model wasn't used on very many bikes that I'm aware of. It also never made any more power than the factory system and from what I was told, actually lost a little bit on the bottom and mid range.  Even this one had the Buell factory full exhaust, it's one of 3 1125 RR models.  |
