Metco Motorsports MLI-90D Auxiliary Idler Bracket w/90mm Pulley 99-04 Lightning

Sometimes referred to as a 'snub idler', this popular kit is an easy bolt-on that will virtually eliminate belt slippage at the supercharger pulley. The key is the unique construction and design of our pulley mounting bracket. The bracket is machined from a 8" x 6" x 2" solid block of certified 6061 billet aluminum, and it is configured so that that it uses two existing and solid mounting points for unmatched stability. The unique design re-positions an existing idler pulley location so that it is positioned very close to the supercharger pulley. This improved pulley location changes the belt path to maximize belt wrap and eliminate belt slippage under heavy belt loads. The bracket is vibratory polished after machining for a smooth finish and long-lasting corrosion resistance.

For most applications, the larger 100mm idler pulley is appropriate. The larger pulley maximizes belt wrap at the supercharger pulley, and this 100mm pulley is compatible with most popular supercharger pulleys sized 3.25” and smaller. For larger supercharger pulleys, the 90mm size would be appropriate to ensure adequate clearance for the belt between the idler and the supercharger pulley. We offer this kit with both single and double-bearing idlers, and these idlers are identical to those we offer for the other idler location on the Lightning supercharger drive.

The kit includes the billet bracket, idler pulley of your choice, (3) stainless M8 fasteners, and (2) heavy-duty CNC-machined stainless steel standoffs necessary to properly position the bracket. This kit is an easy bolt-on, and no modifications are necessary. As mentioned, this kit is compatible with the original Eaton supercharger, as well as Whipple and Kenne-Bell superchargers.

Notes:

• Standard 8-Rib Drive
• When installed with the 100mm idler pulley, a belt that is 1.0” longer than the existing belt should be used. When the bracket is installed with the 90mm idler pulley, a belt that is .5” longer than the existing belt is necessary.