We had problems with ours stalling at 80 Psi or so if it was too overheated, it wouldnt work right until we had given it a half hour or so to cool.
Our solution was that we got a cheap heatsink for a computer and mounted it with zip ties to the top of the compressor (after scraping off the paint and using tons of thermalpaste).
Even without a fan on the heatsink we are yet to have overheating problems
