Originally Posted by
mconway
Randy, this was back on page 134. I asked the following:
There has been a healthy debate recently at our local track. When setting the current limit on an RX8 Gen2 to say 70% does that increase of decrease heat in the ESC? There are two camps one saying it would increase heat in the esc as it is needing to act as a current block others feel it should be cooler as its not allowing the motor to draw more current. This would be in an SCT or 1/8 buggy application.
Thank you
I've never really seen a temp change in the esc, but sometimes the motor due to the reduced "work" load if you will.
If your esc is hotter than your motor for example this is often a sign of a under geared car or a LOT of wheel spin. You will generally notice when the wheel spin is the problem the batter also is quite warm.
In that case I've always found it better to make either a gearing change or a car setup change. On the 4wd SC's for example if you have spur gear options, make sure you use them. In general figure one or two teeth on a spur gear is 1/2 a pinion gear change. So for example on the TLR Ten Scte the stock gear is a 39. MIP makes a 41. So if you wanted to go up 1/2 a pinion say from 14 to 15 you can get a "14 1/2" by going up to the 15T but UP in the Spur to the 41 to match it.
On 1/8 buggies don't be scared to mess with the center diff fluids. If you're blowing up the front tires the car is loosing forwards acceleration so try going up 2k in the center. Now it will affect the car elsewhere so remember it's always about the "balance" of the car. If the change makes the car harder to drive on the rest of the track, look at changing the weight around or a stiffer rear shock package to keep the nose down. Reducing front droop can also help.