What is wrong with launching this S1000RR? - BMW S1000RR Forums: BMW Sportbike Forum
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post #1 of 48 (permalink) Old 09-11-2012, 04:05 AM Thread Starter
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What is wrong with launching this S1000RR?

Did anyone face a similar problem like this S1000RR below?

Lets go for launch already! | Facebook

we tried to help the owner & asked him few questions regarding this issue and below is his answer for these questions.

- Sensor on wheel is likely bad or out of alignment ?
his answer: The wheel speed sensors are not the issue.. already replaced, and the bike runs a self diagnosis normally every start-up, when DTC and ABS are Enabled

- maybe the traction control or the ECU needs to be reset?
his answer: Adaptation values have all been reset, and checked on BMW Moss system several times. The traction control (dtc) was turned off for all starts. It makes No difference, in the way it acts on starts.

What do think the problem is

2010 S1000RR- Ported head by Bsinclair-Austin Racing GP3 full Exhaust - Brentuning ECU reflash device V2 - MWR HE Airfilter - BST wheels - Ceramic wheel bearings , 5" stretch, lowered, Brock's Performance clutch mod & heavy spring kit & front strap kit, APE Clutch, -1 front
8.78 sec on 91 pump gas & Conti SportAttack2 tire
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post #2 of 48 (permalink) Old 09-11-2012, 06:51 AM
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needs way more rpm and more clutch slip

'13 grey S1000RR
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post #3 of 48 (permalink) Old 09-11-2012, 08:47 AM
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like about 8,000 right?
I usually stick to 7,000 because my bravery is lacking....
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post #4 of 48 (permalink) Old 09-11-2012, 09:00 AM
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Quote:
Originally Posted by russianvr4 View Post
needs way more rpm and more clutch slip
Exactly right...
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post #5 of 48 (permalink) Old 09-11-2012, 10:58 AM
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i'd go 10k at least.
i launch mine at redline at the track.

'13 grey S1000RR
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post #6 of 48 (permalink) Old 09-11-2012, 11:07 AM
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Quote:
Originally Posted by russianvr4 View Post
i'd go 10k at least.
i launch mine at redline at the track.
I guess itt depends if you have fuel management or not. The stock ECU limits the power in first gear substantially.

You can probably tune first gear to have the full 180 horses with a power commander / bazzaz / etc, in that case a launch off the limiter would be suicide (for your clutch, not for you).
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post #7 of 48 (permalink) Old 09-11-2012, 11:13 AM
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the new launch control on the HP4 is at 8000
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post #8 of 48 (permalink) Old 09-11-2012, 11:16 AM
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Quote:
Originally Posted by Stang10189 View Post
the new launch control on the HP4 is at 8000
Maybe they're still tweaking it, but from the videos I've seen with launch control in action, the launches don't look that impressive. The videos could be deceiving though.
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post #9 of 48 (permalink) Old 09-11-2012, 12:34 PM
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RTFM If you do, you'll know why

Here's a hint! Did anyone see the shift light flashing ?????
This guy and whomever is working on it are totally missing the setup of the Rev. limiter system.
You need to understand what you're working on, before you can correct the problem.

Last edited by DrD; 09-11-2012 at 12:37 PM.
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post #10 of 48 (permalink) Old 09-11-2012, 12:39 PM
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Quote:
Originally Posted by russianvr4 View Post
needs way more rpm and more clutch slip
not possible.. the ignition cuts even harder the higher rpm you go.. and more clutch slip. doens't get you through the ignition cuts.. you just leave the line slower with ignition wheelies.. I wish I filmed an attempted launch at 10k plus.

I am no newbie to launching.. check out my first launch ever on a 08' cbr 1000rr at PIR.

I usually launch most bikes at 3/4 of bike rpm. Some bikes launch best at Redline too.. just clutch all the way till wheel speed reaches rpm speed.

Rob Egan from Brooklin Cycle gave it a try too.. notice it gerks (ignition cut?) 2-3 times before it lets you go! The higher the rpm. the worse it cuts.. BMW no launch | Facebook
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