Author Topic: Bdk race rotor - experience?  (Read 391 times)

Andy Bush

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Bdk race rotor - experience?
« on: February 10, 2019, 08:56:08 PM »
Have seen BDK in the uk offer this neat race rotor for the 3xv

Has anybody any experience of running one of these ?

Thanks
Bush

vinny

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Re: Bdk race rotor - experience?
« Reply #1 on: February 10, 2019, 09:34:49 PM »
Iv got one on my race bike .
As far as I know mine was the first one bdk actually  made as I had to send over my flywheel from them to copy .
It's a hard thing to  measure performance wise but  you are removing the actual weight of the flywheel  plus the load of the generator charging the battery .
The bike picks up out of the corners much quicker and revs more freeley.
It probally turns in quicker as less gyroscopic effect but to be honest I didn't really notice .
I'm constantly developing the bike  so nothing stays the same from on meeting to the next so can be hard to notice small changes .
There is also some disadvantages to having a lighter flywheel but these don't affect me . (-P)

Andy Bush

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Re: Bdk race rotor - experience?
« Reply #2 on: February 10, 2019, 10:13:18 PM »
Thanks Vinny
You running a zeeltronic ignition with this ?

How do you find the battery lasts with it having no charging. Guess no problem if the races are 15-20 mins .

vinny

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Re: Bdk race rotor - experience?
« Reply #3 on: February 11, 2019, 09:29:26 AM »
Yes that's right Andy  running a zeel.
In for a penny in for a pound  ;)
I'm using a lightweight battery and an electric water pump and it seems to last ok
My local track is tight n twisty and the races are 15 -20 mins .
  i always put the battery on the charger between races and get a new battery every year .
I'm not sure if it would last much longer but from trackdays when iv stretched running time a bit  it , I'd say I'm near the limit of my battery  at 20 mins .
Without the electric water pump you should have no problem.  (-P)
« Last Edit: February 11, 2019, 08:21:53 PM by vinny »

casal-fan

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Re: Bdk race rotor - experience?
« Reply #4 on: February 14, 2019, 12:05:37 PM »

I'm using a lightweight battery and an electric water pump and it seems to last ok


Vinny, what bat. are you using?
I had a bike where a bat. powered ign. PV as well as instruments. LiPo 4S - 14,8V nominal
Ignition was an ignitech - around and after 10000 rpm - problems

Therefor curious :))

vinny

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Re: Bdk race rotor - experience?
« Reply #5 on: February 14, 2019, 08:45:58 PM »
This is the battery I use .

vinny

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Re: Bdk race rotor - experience?
« Reply #6 on: February 14, 2019, 08:47:31 PM »
I have also tried this one which is super light but doesn't seem to be up to the job.
 

vinny

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Re: Bdk race rotor - experience?
« Reply #7 on: February 14, 2019, 08:54:28 PM »
And this is what the rotor looks like fitted .
I still have my rectifier fitted and can switch back to normal generator and flywheel in a jiffy if needed .
I had read up a little on the ignitech and  was going to go with it as few more options on it compared to the zeel but a few guys reckoned they don't  like running on low voltage. 
That's why I went with The zeel is not as fussy about low voltage apparently.

vinny

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Re: Bdk race rotor - experience?
« Reply #8 on: February 14, 2019, 08:57:17 PM »
This is the charger I use .
Nothing special .