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Ignitor for High revving engines
Posted: Mon Dec 25, 2017 3:33 am
by FOXX
Hi guys, I bought the 0 227 100 211 Bosch module to control my V-twin motorbike engine.
My plan is to run sequential with MAP sensor, but I may have to run wasted COP sometimes.
That engine revs up to 10k Rpm and more (depends of the exhaust and intake geometries and the track I am running in) and I am wondering if that module can work well up to that rotation speed (datasheet talks about 8000 rpm max rotation).
Anyone is using that module on sportsbike or hi revving engines in general? Did you have any problem?
I will mount it with a cooling plate and I will use only two channels instead of 4.
Here is the datasheet.
http://www.bosch-motorsport.de/media/ca ... 099pdf.pdf
Thank you for reply!
Re: Ignitor for High revving engines
Posted: Mon Dec 25, 2017 3:54 am
by Dennis_Zx7r
I actually run one of these for over a year now, and for nearly a year used wasted spark. My engine revs up to 13000Rpm, so in wasted spark this equals 26000rpm in sequential (Oops). Well, for what it's worth, it's working great so far and I didn't know the spec sheet had a rev limit that low. My coils and dwell settings give a maximum current of 6A. Bolted it to a big aluminium plate with thermal paste though, so cooling should be a little better than with the standard heat sink.
Re: Ignitor for High revving engines
Posted: Mon Dec 25, 2017 4:02 am
by FOXX
Dennis_Zx7r wrote:I actually run one of these for over a year now, and for nearly a year used wasted spark. My engine revs up to 13000Rpm, so in wasted spark this equals 26000rpm in sequential (Oops). Well, for what it's worth, it's working great so far and I didn't know the spec sheet had a rev limit that low. Bolted it to a big aluminium plate with thermal paste though, so cooling should be a little better than with the standard heat sink.
GREAT thank you!
Re: Ignitor for High revving engines
Posted: Mon Dec 25, 2017 12:58 pm
by grom_e30
yeah i have used the bosch 211 up to 14,500rpm in wasted spark on my bike and seemed fine
Re: Ignitor for High revving engines
Posted: Fri Apr 03, 2020 7:17 pm
by race2win
Can anybody post a msq?
I'm trying to get this same ignitor working on my kawasaki zx10 and having issues above 7k rpm... not sure if it's a dwell issue or what. Thanks
Re: Ignitor for High revving engines
Posted: Sat Apr 04, 2020 2:37 am
by Dennis_Zx7r
- ign_settings.png (16.22 KiB) Viewed 843 times
- dwell_corr.png (25.48 KiB) Viewed 843 times
This is what I use for ZX-6R coils with the bosch module and MS3X outputs. Spark duration wasn't tested.
Re: Ignitor for High revving engines
Posted: Mon Apr 13, 2020 2:07 pm
by race2win
waste spark the bike revved fine to reline but under boost I have a flame out the exhaust like its on nitrous... so I switched over to sequential spark and with 2.0 dwell the bike breaks up at 7k rpm on 8psi boost... kept creeping the dwell up far more then Id like to see 8ms dwell bike breaks up at 11500 on 14psi.. not sure what to do or try.... these coils with factory ignition worked 24psi 125000rpm no issues
Re: Ignitor for High revving engines
Posted: Wed Apr 15, 2020 10:36 pm
by ArttuH
The Bosch 211 module has current limit around 8.5A. Depending on the coil this can be too low to reach full coil charge and spark energy.
How is the AFR under boost when you see possible spark blow-out? Sometimes AFR has really big effect on how well the ignition can keep up under boost and too rich mixture can cause misfires even without going extremely rich. Once I was really struggling with misfires on one engine. The ignition system was more than adequate but always got misfires at moderate boost unless I leaned it out above 12.5-13 AFR. Finally found out that the wideband was showing about 1.5 AFR too lean all the time. After fixing that it was running happily at desired 11.5-12 AFR.