Quote:
Originally Posted by pipeous
if not fans, are all you doing then is adding caps to cool things down? I have been following the rctech forum on the brushless 8th scale conversions, that's how I found this place.... 2 conversions later....
I am just about to mount the esc and I am trying to decide how I would fit a 2 fan setup in this one. ya I know search, and I am reading... so much info here I get sidetracked. 2 days I have been on the site snowbound at home. I am a long time nitro racer and after a nightmare year with engines last year, decided to get into this brushless stuff. I did run helis but other than play with cels, most combos I got worked without worry.
I have a neu 2.5d and running a 4s setup. going to do the cap setup (I read multi caps is better than a single large one, parallel I assume... just need to decide what to use), mamba max, castle bec, 5k 20c lipos.
any advice or links on this stuff would be an awesome help. this site rocks. I am so addicted now, and I love Castle stuff.
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It's just that I think using fans is compensation for bad gearing. I generally like to add larger heatsinks and position them so they take advantage of airflow when possible. Look at the BL Conversions link in my sig; all my Quarks have added heatsinks and run very well. The two MM ESCs I have are in smaller vehicles so they're fine as-is.
Adding from two to four caps does help with heat issues, but you don't see as noticeable gains going more than that. Put them in parallel on the power leads as close to the ESC as possible. Generally, 330uF caps are the normal size to choose and find ones with a voltage
at least 25% higher than the max battery voltage you plan to use. So, for a 4s setup (16.8v max @ 4.2v/cell), I use 25v caps. Using higher voltage ones is fine but they get physically bigger so placement becomes an issue.
I had one nitro revo for about 6 months before I got tired of nitro mess, noise, engine break-in proc, after run proc, tuning hassles, etc. I've always been an electronics type of guy so the progression was natural in my case.
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