I would use a combination of the following:
RC-Monster motor mount:
http://www.rc-monster.com/proddetail...=RCMmugenmount
Castle Creations Mamba Monster Max ESC/Motor Combo (2200kV) - this system, now with the bugs ironed out, really is bulletproof now, and would be excellent in either the Mugen or the Hyper. When I first got my Hyper 9E, I was asked (I had the first one in private ownership - so far as anyone can tell) about the space for the motor, and there is
just enough for the CC 2200kV motor:
http://www.horizonhobby.co.uk/autoon...bamonster.html
RC-Monster Battery Box:
http://www.rc-monster.com/proddetail...MFPbatterytray comes with straps, and you can get a custom version made to fit whichever battery you end up choosing.
RC-Monster Pinion (though a Novak one would be fine too):
http://www.rc-monster.com/proddetail...=5mmmod1pinion
Batteries:
I would use either:
Flightpower's new range of Lipos (the Eon30 range)
PolyQuest's new range of Lipos
But, I'd choose, over those two, the Hyperion range of Lipos (either the VX - 35C or the CX - 25C), as they are cheaper and just as good, if not better than the other two. CX -
http://rclipos.com/Hyperion_G3_CX.htm
VX -
http://rclipos.com/Hyperion_G3_VX.htm
I'd go with 4S if you want to use the Castle motor, 5S for a motor of ~1700kV and 6S for a motor of ~1300-1400kV. Basically you want the motor's max revs to be between 28,000 rpm and 35,000 rpm, as this is maximum efficiency.
I know that most of those sources are from the US, but I have used both before and their service is excellent. RC-Monster mark your item up at half its value, reducing import VAT, and RC-Lipos reduce the figure significantly, so if you do pay VAT, its a very small amount. RC-Monster also have some excellent forums, where there is a thread dedicated to the Hyper 9E -
http://www.rc-monster.com/forum/showthread.php?t=20223
RC-Monster also sell all the different ESCs and most motors, so will widen your choice here. Their prices are very good too, and Mike (who runs it) is a great guy, and very helpful if you are unsure of what to get.
A couple of useful links:
http://scriptasylum.com/rc_speed/_top_speed.html This helps you acheive the right gearing for your set-up, voltage and car. Enter the gear ratios, KV rating, voltage and a few other values and you can fine tune the gearing. Without adding any inches for tyre balloning, aim for about 32-35 mph, and you'll be on the money.
http://www.rc-monster.com
http://www.rc-monster.com/forum
Have fun!
Battery