Cobra 29 Posted December 27, 2013 Report Share Posted December 27, 2013 After about 6 months, yesterday, my son and I installed the 2.5" and 90 mm idler pulleys from Van. This installation completed the 2007 - 2012 Combo package upgrade (tune, plugs, pulleys, and JLT Big Cold Air kit) on my 2008 GT500. I delayed the pulley swaps because I was concerned about the process to pull off and press on the blower pulley. From start to finish, my son and I completed the pulley changes in 90 minutes. Pretty good given our first pulley swap. Getting to the belt tensioner was a challenge. We was able to reach it from the top side easy after removing the cooling reservoir mounting bolts and holding the reservoir out of the way. The pulley removal and installation tool from VMP / Justin worked great. We had some tension on the pulley puller and then heard a pop, and the original pulley came off with each bolt turn. The engine was cold. Installation was even easier. The install tool was positioned straight on, and with each turn of the nut, the new pulley was pushed into place. It stopped right on the mark. I have a small but even gap between the belt and the new pulley sides (front and rear). The car ran good with combo kit without the pulleys. But now it gets up to 5 and 10 psi boost much faster. The car seems faster and pulls from a stop with the stock gears (3:31) much better. Thank you to Van and Justin for their advice and parts. Quote Link to comment Share on other sites More sharing options...
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