BMWSportTouring BMWST DB
Previous Thread
Next Thread
Print Thread
Page 6 of 9 1 2 3 4 5 6 7 8 9
#763685 - 03/05/12 12:46 AM Re: Re-calibration of TB to factory spec? [Re: NJNeal]  
Joined: Jun 2010
Posts: 13,196
dirtrider Offline
The Oracle
dirtrider  Offline
The Oracle
Member

Joined: Jun 2010
Posts: 13,196
Ohio
Evening Roger

Remember you are taking your data on a twin spark 1150, Neal has a single spark engine. You show leaner with a disconnected 02.

On the 1150 single spark 1150's I had they definitely ran richer with the 02 disconnected (at least at light steady throttle) as the surging was reduced.


D.R. ___
Sent from my rotory dial wall phone!
#763695 - 03/05/12 01:14 AM Re: Re-calibration of TB to factory spec? [Re: dirtrider]  
Joined: Nov 2011
Posts: 2,545
roger 04 rt Offline
Member
roger 04 rt  Offline
Member

Joined: Nov 2011
Posts: 2,545
Naples FL & Cape Cod
Originally Posted By: dirtrider
Evening Roger

Remember you are taking your data on a twin spark 1150, Neal has a single spark engine. You show leaner with a disconnected 02.

On the 1150 single spark 1150's I had they definitely ran richer with the 02 disconnected (at least at light steady throttle) as the surging was reduced.


got it dr. and many thanks for the earlier info on techlusion. are the 03 and 04 motronics different?

#763699 - 03/05/12 01:25 AM Re: Re-calibration of TB to factory spec? [Re: roger 04 rt]  
Joined: Jun 2010
Posts: 13,196
dirtrider Offline
The Oracle
dirtrider  Offline
The Oracle
Member

Joined: Jun 2010
Posts: 13,196
Ohio
Originally Posted By: roger 04 rt
[quote=dirtrider]----- are the 03 and 04 motronics different?


Evening Roger

I'm not sure on the 03 to 04 twin spark difference but there is definitely a difference between the 03 single spark Motronic & the 03/04 twin spark. What the differences are I can't say.

It would be nice to see your LC-1 set up on a 1150 single spark Ma 2.4 system. On your twin spark it just makes it a bit nicer, on the single spark it might make it livable.

Question for you: I have a drawer full of wide band 02 sensors here. Can I buy just the LC-1 by itself (actually would need 2 for my 1200 hexhead).


D.R. ___
Sent from my rotory dial wall phone!
#763712 - 03/05/12 02:21 AM Re: Re-calibration of TB to factory spec? [Re: dirtrider]  
Joined: Nov 2011
Posts: 2,545
roger 04 rt Offline
Member
roger 04 rt  Offline
Member

Joined: Nov 2011
Posts: 2,545
Naples FL & Cape Cod
Originally Posted By: dirtrider
Originally Posted By: roger 04 rt
[quote=dirtrider]----- are the 03 and 04 motronics different?


Evening Roger

I'm not sure on the 03 to 04 twin spark difference but there is definitely a difference between the 03 single spark Motronic & the 03/04 twin spark. What the differences are I can't say.

It would be nice to see your LC-1 set up on a 1150 single spark Ma 2.4 system. On your twin spark it just makes it a bit nicer, on the single spark it might make it livable.

Question for you: I have a drawer full of wide band 02 sensors here. Can I buy just the LC-1 by itself (actually would need 2 for my 1200 hexhead).


I have a hunch it would make the single spark really good but it remains to be proven.

Yes DR you can get a package including controller, sensor and gauge or just the controller for 125 bucks. The wideband is a Bosch LSU 4.2. The controller calibrates the heater and the sensor.

If you have a place for a 2 1/16 inch gauge you can get the LC-1 packaged as an MXT-L but you need 2 of those also.

Last edited by roger 04 rt; 03/05/12 02:23 AM.
#765406 - 03/13/12 04:13 AM Re: Re-calibration of TB to factory spec? [Re: NJNeal]  
Joined: Nov 2011
Posts: 2,545
roger 04 rt Offline
Member
roger 04 rt  Offline
Member

Joined: Nov 2011
Posts: 2,545
Naples FL & Cape Cod
Originally Posted By: NJNeal
Thanks. If anyone has a Booster Plug they want to loan me, that'd be great.

I would love to drive the bike to Roger 04 RT in MA or out to DirtRider in Ohio and just say "Hey, fix this". LOL. :-D


Originally Posted By: roger 04 rt
Originally Posted By: NJNeal
...

With a stone cold engine and ambient temps below 40, it doesn't surge.

As for trying another gizmo, I think I am just tired of screwing around with it. ...

 


It doesn't surprise me that your bike doesn't surge when cold. You might have read parts of my Wideband O2 thread, the data shows that the Motronic runs the AFR from the high 12s when cold to the low 14s when nearly warmed up. After hot, and during Closed Loop operation it gets into the low 15s. I think there are thousands of posts in forums outlining the difficulty our Boxer engines have with the lean conditions.

Since you don't feel like working at this much more, you could drop the AFR by disconnecting the O2, installing a (borrowed) BoosterPlug and resetting your Motronic. That would stop Closed Loop and put AFRs into the high 13.8 to 14.2, and see if you wanted to do more.

2,500 to 4,000 RPM is now one of the most pleasant operating ranges on my '04 RT.

RB


Hi Neal,
Jens from BoosterPlug shipped me a BP and it arrives in the mail today. You could try it for a week for the round trip cast of postage. Send me a PM if you are still interested.
Roger

#765441 - 03/13/12 12:23 PM Re: Re-calibration of TB to factory spec? [Re: NJNeal]  
Joined: Sep 2011
Posts: 116
NJNeal Offline
Member
NJNeal  Offline
Member

Joined: Sep 2011
Posts: 116
Northern NJ
PM sent. Going to give it a try.


1978 R80/7
2003 R1150RT
I'd rather ride than wrench.
#765699 - 03/14/12 01:57 PM Re: Re-calibration of TB to factory spec? [Re: NJNeal]  
Joined: Nov 2011
Posts: 2,545
roger 04 rt Offline
Member
roger 04 rt  Offline
Member

Joined: Nov 2011
Posts: 2,545
Naples FL & Cape Cod
Originally Posted By: NJNeal
PM sent. Going to give it a try.


Hi Neal. Got your PayPal for the $10 for two-way shipping, thanks. You should have it tomorrow.

Leave the O2 disconnected, attach the BoosterPlug in series with the Air Temp connector under the front seat, and tie wrap the silver end of the probe somewhere convenient where it gets decent airflow. If this were permanent I'd say to pull the left side plastic, insert the probe between the intake air tube and its extension and tie wrap it there but for this test I wouldn' go to the trouble.

With your pink cat code plug in, the O2 disconnected, and the BoosterPlug added, you will be running a cruise AFR of about 13.8:1 but running E10 will bring that back to about 14.2:1 (equivalent). That will put you nicely rich of stoichiometric. Since the Closed Loop program won't be running, there will be no fueling variation at cruise, you should have a good ride.

We'll be interested to hear how it goes.
RB

Last edited by roger 04 rt; 03/14/12 02:11 PM.
#765824 - 03/14/12 10:47 PM Re: Re-calibration of TB to factory spec? [Re: NJNeal]  
Joined: Sep 2011
Posts: 116
NJNeal Offline
Member
NJNeal  Offline
Member

Joined: Sep 2011
Posts: 116
Northern NJ
Thanks! Can't wait to try it!


1978 R80/7
2003 R1150RT
I'd rather ride than wrench.
#766442 - 03/17/12 05:17 PM Re: Re-calibration of TB to factory spec? [Re: NJNeal]  
Joined: Sep 2011
Posts: 116
NJNeal Offline
Member
NJNeal  Offline
Member

Joined: Sep 2011
Posts: 116
Northern NJ
Plugged in the Booster Plug this morning. Absolutely no surge. Torture tested it at constant throttle in all the places it used to surge, and I couldn't get it to do anything but run smoothly.

I'm sold. I'll order one. Thanks for the loan Roger. It's on its way back to you on Monday morning.

My mpg baseline now, before the Booster is 30mpg. I think that's really low, but the bike is running really smoothly, plugs look good, so I intend to just run it for the Summer or until a bike comes up I like.

Thanks for the assistance folks.


1978 R80/7
2003 R1150RT
I'd rather ride than wrench.
#766443 - 03/17/12 05:56 PM Re: Re-calibration of TB to factory spec? [Re: NJNeal]  
Joined: Nov 2011
Posts: 2,545
roger 04 rt Offline
Member
roger 04 rt  Offline
Member

Joined: Nov 2011
Posts: 2,545
Naples FL & Cape Cod
Originally Posted By: NJNeal
Plugged in the Booster Plug this morning. Absolutely no surge. Torture tested it at constant throttle in all the places it used to surge, and I couldn't get it to do anything but run smoothly.

I'm sold. I'll order one. Thanks for the loan Roger. It's on its way back to you on Monday morning.

My mpg baseline now, before the Booster is 30mpg. I think that's really low, but the bike is running really smoothly, plugs look good, so I intend to just run it for the Summer or until a bike comes up I like.

Thanks for the assistance folks.


So the config that worked for you on your 2003 R1150RT is the disconnected O2, Pink CCP and BoosterPlug. Everything else is stock, right?

If you ever get adventurous and want to re-enable Closed Loop, you might be able to get someone to but an LC-1 on but that's a future option.

Page 6 of 9 1 2 3 4 5 6 7 8 9

Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.040s Queries: 14 (0.006s) Memory: 2.8157 MB (Peak: 3.0056 MB) Zlib enabled. Server Time: 2017-11-21 00:32:51 UTC