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Buell Forum » 1125R Superbike Board » Archives 001 » Archive through June 24, 2010 » Erik Buell Racing FMF combo update « Previous Next »

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Mr_t_1125r
Posted on Wednesday, May 26, 2010 - 11:39 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Installed the FMF Apex pipe last night and put 30 miles on it with the stock ECM (latest flash with charging harness upgrade) . Pretty loud, I didn't install the db killer, 2 options for that for sound level. Super east install and it fit perfect, very nicely made in the USA. I did take off the FMF sticker as it looks better in bare carbon. It ran nice, 72 degrees going into to work and it was as good as the stock pipe, 98 degrees on the way home and some lean decell popping. The Erik Buell Racing FMF ECM was arrived and I installed it and went for a 25 mile ride, it really improved the low end driveability, no surge anywhere, lugged it down to 2200 in 2nd & 3rd and it pulled cleanly thru, you could ride at 3000 all day smoothly. Only brought it up to 8000 as it was still 95 degrees out and didn't want to beat on it at the high temps. No dyno #'s before & after, sorry but I don't care about sheer power, I do know it has more torque in the 3-5k range which is where I do most of my riding. This combo really makes the bike feel like a more refined ride that the EPA most likely took away to meet the emissions & noise stuff. And the accel in first gear on letting out the clutch thing is gone. Erik Buell Racing made my bike run the way it should, truly amazing, it's all in the tune.





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Smurph
Posted on Friday, May 28, 2010 - 12:04 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I am getting ready to order my ecm as well. I already have the FMF on the bike, and it needs fuel badly. Also what is your bike idling at with the Erik Buell Racing ecm? I had been considering having them lower the idle rpm from the factory mapping (152)it surges from 1450-1600rpm. With the FMF being pretty loud I would like mine to idle at a more reasonable sound/rpm level. If anyone else is running a lower idle rpm I would like to hear from them good, bad, voltage reports, cooling issues, or are you happy with it. Thanks
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Ezblast
Posted on Friday, May 28, 2010 - 12:31 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Good questions!
EZ
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Steve899
Posted on Friday, May 28, 2010 - 01:06 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I also have the FMF pipe and I love it(2008 1125r),I did install the Erik Buell Racing Ecm , talked to them about the idle thing , they told me they are putting all the pump gas ecm to the lower idle setting due to popular request, I said good that's what I wanted. I have run the bike at MSR Houstons track and the bike is a blast to run on the race track. The bike has smoother power and better power up to 10,000 rpm. from 8,000 to 10,000 the bike comes alive. Anyone thinking about the FMF pipe and Erik Buell Racing ecm , think no longer , it is the hot setup.

Funny before the mod's ,stopping was ok on the track, but I am bring 15mph more to the end of the long straight, now I can't stop the 1125r, I need new and better brake pads!
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Smurph
Posted on Saturday, May 29, 2010 - 12:15 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

So with the pump gas ecm what is the idle at now?
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Therealassmikeg
Posted on Saturday, May 29, 2010 - 05:27 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

My buddy just put an E b r ECM on his 09 cr last night.
Idle is set at 1400. He made no mention as to what he wanted the idle set to when it was ordered.
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Babboo
Posted on Saturday, May 29, 2010 - 08:12 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I emailed E B Arr about lowering the idle to 1100-1200rpm & the engine braking issue & they came back with this response -

"We will not set the idle that low, as the charging system is at a huge deficit that low, and also the engine internals start getting beaten up because of inertia oscillations. 1400RPM is as low as we will set an 1125. For less engine braking we set it at 1700"}
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Mountainstorm
Posted on Saturday, May 29, 2010 - 08:18 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Hey Babboo, that was my thinking on the whole "sounds cool idling low" trend here. There's a reason the 1125r has a higher idle speed than an XB: it's not a damn Harley.

Glad to see the ECMs are selling briskly for E B R. It's a great product at a fair price.
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Mr_t_1125r
Posted on Saturday, May 29, 2010 - 11:35 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I forgot to post the idle, 1350-1400, hard to tell exactly but it does not have the helicopter sound that some other people mentioned with other pipes. Yesterday was about 65 degrees going into work and the bike pulled really strong from any rpm, banged of the rev limiter in 1st as it rev's that fast and easy (same 10,500 limit), the sound of running up thru the gears (only 3) at 10,000rpm was amazing, not like any twin I have heard before, almost like a really deep tone in-line 4 wail, the sound of the devil himself.
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1_mike
Posted on Saturday, May 29, 2010 - 12:38 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

(Mountain) 1300rpm ISN'T a low rpm...!

Funny...they told me the same thing.
1. Can't/won't lower the idle from 1500 to 1300rpm.

2. Will not get rid of the rpm change during the clutch letout (happens cold only). Apparently they will!

3. Will not raise the idle ignition timing.
This is really funny...
If the idle timing can be raised off of single digit values...not only will the engine run "smoother" (their excuse for the high idle rpm)...it will idle...slightly "quieter"...!

But no...they continue to talk out of both sides of their mouths.
Tell us they can't do something...then go ahead and do it...

Mike
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Jrfarrow1987
Posted on Friday, June 04, 2010 - 01:39 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

anyone got the programmable ecm set up for the fmf pipe if so wat would it cost to get the fuel mapping information
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Dirty_john
Posted on Friday, June 04, 2010 - 02:37 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Although my Erik Buell Racing race ecm was requested with stock idle the bike actually idles more smoothly and at 250 - 300 rpm lower than with the stock ECM.
Bike has K&N and for the moment an HPE race can
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Jdugger
Posted on Friday, June 04, 2010 - 08:06 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

You don't want that low idle on a bike that's actually ridden for sport. It's going to promote rear tire skipping in corners, make downshifts require a blip, make the motor stall prone on blips (so you will have to hold a roll-on between gears), etc.

I know one of the params of the race ecm is to control the dump of fuel at off-throttle -- I'd like to have LESS rear wheel drag instead of more... I find myself on the gas and brake at the same time going into some corners to make the downshift smoother, even with a proper Suter slipper clutch installed on my bike.

That low idle is going to make it harder to ride the bike well at pace, IMHO, and all you really get for it is a "better sound" when you are sitting in the paddock staring at the machine.
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Nattyx1
Posted on Monday, June 07, 2010 - 01:24 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

JDugger: True. All racebikes I've ever ridden have very high idles -- closer you can be to running speed, the less chance you have of rear wheel hop or lock up if you downshift one too many times and dump the clutch. But our 1125s have a faux slipper clutch system, so if for example you're burning along in 3rd gear at 9000 rpm, and you shut off the throttle completely, the vacuum pressure shoves a rod into the clutch pack and lets it slip. It's the same system (I think exactly) that the Aprilia/Rotax bikes use. So it's not a mechanical slipper like on drag bikes or aftermarket race clutches with ramps etc, it's vacuum-operated on decel. But you have to COMPLETELY dump the throttle to the zero stop or it won't throw the valve to do this. And that's fine, because if you are flying into a slow corner from a fast straight, and you're all over the brakes, the last thing you'd wanna be doing is inadvertently feeding in fuel -- that just diminishes your stopping power (except for any needed downshift blip, and you're clutching on the downshifts anyway).

So - my thought? Keep the "high" idle as they say because they know what they're talking about, and make sure you are shutting the throttle completely when you are hard-braking. You can go out and practice with this... once with the throttle cracked open (maybe to like 5%) and once with it shut. It's pretty dramatic.
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Mcballpeen
Posted on Monday, June 07, 2010 - 07:41 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Frankly, I like the idea of a plug and play ECM. Before you had to get a pipe and program the stock ECM to the proper setting. Sound like a lot of fun, but so was jetting the carbs on a bike.

Now you just plug the Erik Buell Racing ECM in and you're done. As soon as I get some pennies scraped together I'll be ordering the FMF Apex pipe, Erik Buell Racing ECM and a K&N filter.
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Nightmare1
Posted on Monday, June 07, 2010 - 09:21 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

"Steve 899 said: I have run the bike at MSR Houstons track and the bike is a blast to run on the race track. "

Slightly off-topic, but Steve (or anyone who has tracked this pipe) did you have any clearance issues?
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Jdugger
Posted on Monday, June 07, 2010 - 09:02 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

> make sure you are shutting the throttle completely when you are hard-braking.
> You can go out and practice with this... once with the throttle cracked open
> (maybe to like 5%) and once with it shut. It's pretty dramatic.

Dramatic it may be, but this really strikes me as dramatically bad advice.

Seems like a superb way to ensure one steps the rear on corner entry.
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Jdugger
Posted on Monday, June 07, 2010 - 09:05 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

> (or anyone who has tracked this pipe) did you have any clearance issues?

It's fine.

I'm a bit shy of a competitive CMRA novice pace, so not fast by any real measure, but faster than most at a track day.

I've never been near the pipe to my knowledge -- I drag toes and pegs first, and that's with them up and back about 1/2-inch.

The mid-pipe will drag on a steep ramp unloading from a tall truck, but then again, so will the stock exhaust. And, badly at that!
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Nightmare1
Posted on Monday, June 07, 2010 - 10:26 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thanks J!
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Brinkba
Posted on Tuesday, June 08, 2010 - 04:13 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

The FMF in its original mounting position does have some clearance issues. Peg will scrape first but FMF comes in a close second. With an extra spacer I mounted the FMF as far inwards as possible (+6mm). It does not scrape the track anymore. The pegs and the belt guard however still do.
fmf
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Cravacor
Posted on Tuesday, June 08, 2010 - 06:28 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

So the slipper will only engage at zero throttle? Bilpping will defeat this?
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Smurph
Posted on Tuesday, June 08, 2010 - 06:49 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Ordered my Erik Buell Racing FMF ecm today hopefully get it by the end of the week. I will post up feedback when I get some miles on it.
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Jdugger
Posted on Tuesday, June 08, 2010 - 10:39 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

> So the slipper will only engage at zero throttle?
> Bilpping will defeat this?

More or less.

The slipper uses the vacuum from the throttle bodies to slightly disengage the clutch. You can get a feel for this by taking note of the effort required to pull the clutch lever while accelerating vs. using engine braking off throttle.

Basically, if there's no vacuum, as in the case of a blip, then there's no pressure helping the clutch disengage, and hence no slip.

It's really a crude slipper concept at best.
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Ysracer
Posted on Wednesday, June 09, 2010 - 12:07 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Brinkba, how much do you weigh ? Stock suspension ?
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Brinkba
Posted on Wednesday, June 09, 2010 - 05:28 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Ysracer I weigh 72 kgs and have a AST rear shockabsorber with a spring rated 140-90-61, front is stock. Probably have to push the outer peg a bit more to reduce the lean angle. other suggestions are welcome.
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Mcballpeen
Posted on Friday, June 11, 2010 - 06:10 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I got my ECM and K&N filter today. The pipe is coming Monday. Now all I need is the bike back from the dealer.......

A week and a half and still no word on the new rear wheel, bearings and axle.
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Andella
Posted on Thursday, June 17, 2010 - 08:51 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

My ECM has arrived and the FMF exhaust will be here tomorrow!
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Scraejtp
Posted on Thursday, June 17, 2010 - 10:07 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Installed my HMF slip-on this weekend. The check engine light came on, and the bike was weak at low rpms. I only rode the bike ~10 miles, so the stock ECM probably didn't get much of a chance to learn.
Swapped in the Erik Buell Racing ECM for the HMF exhaust, and no more check engine, and feels at least as good as stock.
No more lugging at low engine speeds. Exhaust is very loud though.
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