Less wheel spin will also up your runtime. I remember fighting the wheel spin beast on a simple 1/10 2wd truck on a winter indoor track. almost made my runtimes go up 30% just by correcting it.

when proline comes out with a real 1/5th scale track tire that may help wheel spin .plus when the track gets redone and watered in a few weeks and has traction that may help too.
im thinking a 16 pinion will still be plenty for for the straight.

update- i ran at same track but only used whatever throttle the track could take. tried to have very little wheel spin. maybe 1/2 on the straight.
i got 17 minutes run time instead of 12.
motor was max temp of 150F on telemtry and was 125 in the pits by temp gun a minute later.
batterys were much cooler .100f
center dif was 50 degrees cooler.
60 degrees out today instead of 70
still a 150 amp current limit and a 3.5 voltage cut off

http://i7.photobucket.com/albums/y29...twheelspin.jpg

dont freek out with the rpm i may have 2 pole instead of 4 pole in telemrtry.? just devide by 2

I would try 100k in the center, the truck seems to rotate very well naturally. You always have some throttle to make it do what you want if 100k is a little thick off throttle.

I want one of those trucks bad, don't hate but mine will have the 28.5cc reed motor in it though, I've seen a couple videos and that motor is nutty. The thing keeping me from getting one is no track for 1/5th around me to run it at.

+1 :no:

was in the same boat too when I bought my first 1/5 . I can honestly say yeah, I would love to be able to race this vehicle. It definitely is a tough call on spending the money on essentially a basher if you have no track.

I started out with that fear, but then thought.. "Wait a minute, if I'm romping a 1/5 scale beast around I can buffalo it pretty much anywhere I damn well please!"

Granted, I've electrified all of mine.. but the 1/8 scale tracks will let me run there on practice days so long as I play nice with everyone else:whistle:

You'd be surprised how friendly people get when they see one of these big things shaking about.

lol i ran over a slash .it wasnt pretty and wasnt my fault. funny though:lol: like a speed bump in the road

nvmd

found a place to stretch the beasts legs. CORN FIELDS:intello: nothing like cruizin at 60+ mph down a corn field ( without corn lol)
just dont roll over at the far end cause its a 5 minute walk to go get the thing.

i'm down to a 16t pinion with the castle blower fans and its running cool now.
no issues;no problems; just fun :-) i need tires.

how things going for you and your conversion?

everything is perfect with the car.just have no place close by to run it. going 65mph up and down a corn field gets old fast. what r u up too?

thinking of converting my MCD to electric depending on what RC Monster offers versus the MCD conversions.

Other than that, been helping someone with there RC Stuff. Looking forward to the track getting going here. There are a variety of people around the area who own 1/5s here, see a few in the LHS from time to time for repair work, who knows, maybe something could get going for racing the scale.