rechip bmw 1150's

[Roger 04 RT]

Roger i said many times. I do not want to use an LC because then i sould fit to each bike and it is too much trouble. Maybe i buy one just for test to my bike.. Have you any (second hand) LC to send to me or send to phil for make the test ? i pay for it.

Hi John, I would like to send you an extra or a spare but I don't have one. If you wanted to wait a few months I might replace my LC-1 with an LC-2 but I'm not sure yet. Once you have one I'd be happy to help you analyze the data and develop tests to find what you want to find.

Your bike is a R1100GS so I understand why you don't want a GS-911 but on the R1150, where you claim Lambda maps that control Closed Loop AFR (which I see no measurable or documentary evidence of), you could borrow or rent one maybe from someone near you. Then you could confirm that the bike is in Closed Loop when you think it is, and then use the LC-2 to show the small, Closed Loop fueling ramp-up, ramp-down. You can see it accurately with the LC-2 (or LC-1).

The GS-911 would also allow you to see the Spark Advance data and Dwell data for the R1150GS Dual Spark. Although Dwell time probably doesn't matter too much on the single-spark bikes, it is too short on the dual-spark bikes after you change timing.

 

[JohnGS1100]

GS-911 ??
Let me know about, i m interesting. Can i see the timing advance ? Also can i see and the AFR ? That's would be good.

 

[Deleted account 220427001]

r1150rt rechip

HELLO bmw riders
today ive fitted john's stage 4 to my standard r1150rt twin spark going to test it later on see how it goes..............

 

[Roger 04 RT]

GS-911 ??
Let me know about, i m interesting. Can i see the timing advance ? Also can i see and the AFR ? That's would be good.

It is available from www.Hexcode.sa it logs many Motronic parameters for the r1200 and r1150. It does not log realtime Motronic data for r1100. You can take data while you ride. It logs ignition advance and and dwell angle which allows you to compute dwell time in a spreadsheet. It also logs lambda sensor voltage and Motronic closed/open loop binary value. When paired with and LC-1 or LC-2 you gain good insight.

Here is an example datalog:

 

[JohnGS1100]

Thanks Roger. I will buy a GS-911. How can i check the AFR at close loop and write the results at EXcel page.
Is it possible by this tool ?

I see at your photo the voltage of Lambda, i think if i can see this voltage at close loop and i will can compare the lambda shift and take the results at real time, what do you think ?

 

[Roger 04 RT]

Thanks Roger. I will buy a GS-911. How can i check the AFR at close loop and write the results at EXcel page.
Is it possible by this tool ?

I see at your photo the voltage of Lambda, i think if i can see this voltage at close loop and i will can compare the lambda shift and take the results at real time, what do you think ?

On the R1150 you will get an approximate idea of AFR. I have some data that can correlate AFR with lambda sensor voltages from a single-spark R1150GS.

On the R1100 the GS-911 will be of no use.

The LC-2 can be configured to be plug 'n play with two selectable AFRs. One could be programmed to lambda=1. That way you could mount it in the stock bung in place of the stock O2 sensor. It would produce a signal that could be used perfectly for closed loop AND you could measure on-road AFR and create a log like in this thread: http://ukgser.com/forums/showthread.php/396459-R1100-Fueling-Open-Loop-Closed-Loop-amp-CO-Pot.

You could also use the LC-2 on R1100 or R1150 and it would allow you to characterize your chips. It is the only way to really know what you have done to AFR. On the R1150 the GS-911 would tell you what you have done to the very complex spark advance and dwell maps.

 

[Roger 04 RT]

Recently I started a thread showing in detail how an R1100 with a stock Motronic performs, here: http://ukgser.com/forums/showthread.php/396459-R1100-Fueling-Open-Loop-Closed-Loop-amp-CO-Pot. It is the type of analysis that you should get from anyone who re-chips your bike.

This is a very detailed document on how the R1100 is fueled by the Motronic. You, as the rider/owner, shouldn't have to but the vendor should.
RB.

 

[JohnGS1100]

Roger i found the original chip of R1150RT 2004 twins (like your bike).

Did you want a mod chip with (my richer) lambda maps for testing ?
Can i trust you ?
Tell me how exaclty did you want to make the maps in to the chip.

I can make mods at:

1. Main injection maps.
2. Main timing advance at middle revs (close loop).
3. Timing advance at full open throttles.
4. Variable full max timing advance at acceleration.
5. Richement fuell acceleration.
6. Lambda maps (when engine is cold).
7. Lambda maps (when engine is hot).
8. Lambda map at iddle speed (1.100).
8. Lambda map for protection catalytic (as you call long trim term).
10. Expand timer of spark plug (needed de-cat exhaust - free air filter and 98+ octane petrols).
11. Expand Rev limits.
12. Extended timing advance map after long miles (adapt long term trim advance).

Also you sould tell me :

1. what petrol (octane-ron) petrol did you use at your bike.
2. How long time and miles did you want to make the testing.
3. How much money will cost the test (petrol, working time and anything else).

I only want you post after testing the real results.


Thanks

 

[Roger 04 RT]

John,
As I have said numerous times, I took my bike and Motronic apart twice to make the tests you are asking about. And as you know the tests showed that your modifications added a lot of fuel initially (too much even). As soon as the bike was warm the fueling returned to stock. The tests also showed that you did not correctly adjust dwell angle.

When you can show with measurements that your mods do what you think they're doing, by measuring with a GS-911 and Wideband AFR located before the catalytic converter, then I will try the tests again.

If I thought they might work I would try. You're selling a lot of chips, you should buy the equipment and make the tests,

Let me ask you a question, why haven't you bought the equipment?
RB

 

[JohnGS1100]

I m close to take and post the results. Thanks Roger.
I buy a wideband and i fit it in to the pipe of exhaust and i will see live the AFR.

I believe that this huge boxer engine (1100-1150) can gives much more power..

Anyway, i will back soon

 

[Roger 04 RT]

John, That's great. Make sure you run a realtime log data collection, not just look at the gauge. There is so much more info when you collect the log.

I can help you examine the log if you email it to me. The best initial log is from a cold start. Then a riding log.

Good luck, RB

 

[Roger 04 RT]

John, Did you weld a bung into your exhaust near the original?

Also, when you're ready I can explain how to take the LC-2 output (analog 1 or 2) to drive the input of your Motronic. You'll really like what it does.

Also a note, to get a good cold start log, power the LC-2 up for a minute or until it's warmup light stops flashing, then without shutting it off, start the bike. You can then measure all the various start, after start and warm up enrichments. Here is what a typical log will look like:

 

[newboy]

So - as I don't understand this argument between Roger and John...

Have those people who have bought this found an improvement?

I have 2005 R1150 GSA and am very interested....

 

[Roger 04 RT]

There's no real argument. John says he has modified tables that alter closed loop AFR. He is now going to try and demonstrate that. If he does I will fit a chip on my bike to confirm it.

He had sent me a chip and when I measured it, it did not alter closed loop AFR so it did not do what he said it would.

 

[newboy]

There's no real argument. John says he has modified tables that alter closed loop AFR. He is now going to try and demonstrate that. If he does I will fit a chip on my bike to confirm it.

He had sent me a chip and when I measured it, it did not alter closed loop AFR so it did not do what he said it would.

I ain't being rude here - but I am asking other people - I will open a new thread if it offends....

 

[Roger 04 RT]

Don't worry about being rude. If you were asking other people, just ignore my answer.

There are dozens of subjective answers to your question here: http://ukgser.com/forums/showthread.php/374172-JohnGS1100-Tuning-Chip, in the thread on John's chip.

Maybe I'm wrong but I thought this thread was trying to be objective about the pros/cons of rechipping. And the other thread was started by John to promote his product.

 

[Deleted account 220427001]

Hello again here is my report on johns chip. ive a stage 4 chip on my twin spark bmw r1150rt 04 plate ,my bike runs a lot better at low revs just pulls very nicely before just tell it slightly struggled as for fuel mpg it has improved ,but also noticed in top gear it made all the difference before had to knock it down into 5th for over taking say like around 60 mph but now just leave it in top gear and cruises past the car etc well im happy with it might give it a k@n filter on the bike as ive not changed it in 3 years.so to the riders give it ago you might be supprised. thanks john.

 

[howdoo]

Hilltop.

 

[Deleted account 220427001]

totallu agree their mod Ive fitted a stage 4 im happy with it

 

[jeremyj]

Totally agree with mod although not sure which stage chip I have, been on bike for 9 months very pleased