Hobbywing make the Losi systems right?
And yes, the Castle MMM had a few issues. With a dodgy batch of transistors and also their software had a bug in on the BEC handling causing it to mess up and fry. Sorted now though (v3 I think).
The Speed Passion is a crazy size, as is the Losi system (MMM not much smaller mind!). The Tekin R1 Pro is already better than all those systems (more fets and higher quality ones too) and a fraction of the size. Fairly high cost though and needs the new alloy case to stay cool in an 8th system. I along with lots of people on here run the R1 and RS and I don't think any of us have any problems, especially with thermalling! With a 4.5 turn motor in my CAT SX, the internal sensor shows a heat of around 4/10 on the LEDS after a 5 minute run and I'm geared fast! So I have 6 LEDS (60%) more capacity before it would even think about thermalling.
The Tekin Rx8 is going to be THE system when it is out. Not as high FET count as the R1 Pro, but spread out more and with a heatsync. Less FETs mean it will be priced cheaper than the R1 Pro and yet still plenty capable of pulling a 8th buggy or truggy around a track. The fact that an R1 Pro is winning 30 minute+ races against nitro in truggies shows that it is exceptional... especially when you consider it is a 1/10th esc (again no thermal problems). Hence I have every confidence in the Rx8 and from the images I have seen it looks wicked too!
I am going to stick 4S for this. 5S will give a little more effciency, however at weight and maybe cost (although you can get away with lower quality packs when you go 5S). My main reason however though is due to standards and regulation. ROAR's preview rules are 4s limited, so i think maybe EFRA and BRCA will follow.
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Jason Moller
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