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Old 11-03-2014
SOSx SOSx is offline
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Join Date: May 2011
Location: Bideford, Devon
Posts: 130
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Hi Silone,

I have ran it for a single race day so far, but want to do more handling testing. Intial impressions are good with the car feeling great - more stable in high speed sections and generally less twitchy. But it was not an entirely accuarate test as I was also running the car with the alloy hangers (which need more testing them selves) and to give an accurate representation I need to run the car without these to see what just the chassis is doing on it's own.

One point that I particularly wanted to investigate with the alloy chassis was the potential for effective heatsinking. And it seems that if the chassis is connected thermally to the motor it can make quite a drastic difference to the runnning temps. To provide good thermal connection I use the alloy motor mount with good qualitiy thermal paste applied from motor to motor mount and motor mount to chassis.

I run a fairly hot motor and esc system (Novak 380 13.5T (6000Kv) motor hooked upto a Dual Sky, 150a XC850 TFMJ with moderate boost/timing advance applied). Normally with my carbon chassis installed my motor temps would run consistantly at about 55-60 degrees C after a 5 min heat and 65-70 after a 7min main. With the Alloy chassis installed I was consistantly seeing a drop of 10-15 degrees at just 45-50 degrees c after a 5 min heat and 50-55 after the final. The chassis itself was getting upto 40-45 degrees at the point where the mount attached to the chassis!

The protoype adds 31g to the weight (which certainly lowers your cog). But this may change as i'm insterested in trying a couple of other chassis profiles and possibly topside milling of pockets to induce different flex charicteristics and weight ballance.
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