Quote:
Originally Posted by itbvolks
Tedo,
Thanks for the response. I had actually been following your build here for a bit. Very very similar to what I'm putting together.
I planned on going with 5S solely for the efficiency boost plus it allows me to run a lower kv motor so a little more torque/less work/heat. At least that's the concept right now.
Mike's setup has been great to work with. Simple mod from my end (I did all the custom machining on my hyper7 conversion) so this was an easy bolt together option. Overall, the layout is clean and simple. Battery tray is large enough to offer options regardless of setup and the motor mount works perfectly for my needs. Hopefully it'll translate to fast laps and an easy to drive truck.
Love your body choice too ;) Same setup as mine actually. lol
How have you found the slipper to work for you? Being a mechanical designer, I can really appreciate the concept especially for direct drive guys. Any driveline protection is good protection provided it doesn't make it less reliable. I'd actually like to see Mike incorporate the Mugen outdrives for a small weight reduction (anything helps).
Overall, seems like your getting decent battery life based on what looks like a very fast track layout. Hoping I can get similar from a slightly more efficient setup running on 5S.
Truck looks wicked!
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The slipper is a must. I was driving a converted 5T w/o a slipper and I separated a few rotors. Then again, it was the early days of the T8's (Tekin always took care of me, and had me running by the following weekend). You can adjust it throughout the day once the track starts getting loomier. Plus with the throttle profiles on the RX8 your motor stays very, very happy. I haven't run a fan since late September, and the hottest my electronics have gotten are 120 F. Pretty damn good. I am also geared conservatively. Started out 17 x 46, now I am at 15 x 46. The difference from 39-36mph is barely noticeable at our track. I can still dust the nitros before their clutches spool up (maybe a little exaggerated, but you get the point).
Also, I am on my second outdrives. The fist ones ovaled out (weak materials in the early versions), and Mike sent me 2 new ones for free. They are beefier than the stock 6t cups, but with our brushless power, I am okay having a little insurance. Plus we can save weight elsewhere: tires and batteries. Everything on the stock mbx6t is pretty damn good out of the box, and not many things to upgrade, if at all.
Oh, stock up on the 5 x 21 bearings (the weird size ones in the hubs), those get gritty all the time which increases rolling resistance, which decreased run time.
Get some pics up!