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glassdoctor
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Posts: 2,041
Join Date: Jul 2006
Location: Iowa... Hawkeye country
07.28.2008, 02:00 PM

the old standard...

Mamba Max w/ubec
Neu 1512 1.5y (1900kv)
Maxamps 4s 8000mah (pair of 2s packs)
15/44

I did manage to get the MM hot this time. It's a bit heavier setup and I had no cooling hole in the body, no fans, no extra caps... and I was pushing it pretty hard. I got about 10 minutes in and it cut out a couple times for like 5 seconds.

I pulled it off so I didn't have to have the marshalls keep grabbing the car. I was up to 4th place at the time...

It only temped at 185-190 on the heatsink... it's been much hotter before without thermalling so I'm still not convinced that's what was going on. But that's the most likely thing. I think the motor was in the 160s. Normally the esc also runs about that.

One another note.. a friend ran my 8ight and had a blast. No issues... had a 1509 (1820kv) and MM with caps and a kokam 4s 4800. Another buddy was running his 8ight with MM and 1509 (2300kv?) on 4s and 12/46 and his temps were very good, but he was somehow using more battery than my 8ight. (@400mah more in a 6 min run)

If I had caps or better cooling for my MM.... I likely would have finished 3rd.


Jammin CRT MM/Neu 1515 1700kv
Losi 8IGHT MM/Neu 1512 1900kv
Kyosho 777
T4 MM 5700
B4 LRP
XX4 MM 7700
old losi xxcr, MM4600 4s lipo 70mph+
   
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