Gary Selph did try this mod on his upgraded Alamo sidemount intercooler. His testing shows that the fan makes no difference in intercooler performance.
On the other hand, Mark Purney installed one on his stock sidemount intercooler. He reported good results with his installation, although other owners have found it makes no appreciable difference. Unfortunately, Mark has no experimental data to verify his results.
Mark and Gary seem to concur that the stock intercooler might benefit from the fan, but upgraded units are unlikely to benefit. Gary also noted that a fan might work well with an intercooler sprayer installed.