American Motorcycle Dealer AMD 244 November 2019 | Page 56

A new high-tension 3 mm oil ring set is supplied with Tracker pistons for Twin Cam, Sportster and EVO models. "Oil consumption control is an important performance consideration in the V-twin market." One of the most popular Twin Cam kits is the overbore to 103 ci - available through the Tracker Series in multiple compression ratios; 10.5:1 pictured here. The Tracker Series also offers a choice of options for EVO riders - a stock compression 8.5:1 (shown here) and a 10:1. into the dry-film lubricant. "Wiseco spared no expense in the Tracker Series piston kit," Sulecki states. "V-twin riders are getting nearly the same level of features, but with less cost on our side, so we can pass the savings on to the end user." Premium rings are supplied with each piston, with Wiseco using a new high-tension 3 mm oil ring set in Twin Cam applications. "That is really important in that market because we can control oil consumption in the engine. The premium rings, wrist pin and circlips are also found in our Sportster and EVO (Evolution) applications. It pays that we know our audience. We found that the majority of V-twin owners wanted to not only increase the displacement of their engine, but also raise The Wiseco Tracker Series "provides a featured performance piston that improves reliability for less than a premium price point. Tracker piston kits come complete with wrist pin, rings and circlips. 56 "Bumping up an 883 Sportster to 1200 cc is a popular mod among Sportster riders. Tracker pistons are available for these kits in both 9.5:1 and 10:1 compression ratios." compression. The Tracker Series pistons accomplish both. "One of our most popular kits for the Twin Cam engine takes it from the stock 96-cubic inch to the 103-cubic inch size," explains Sulecki. "You can increase the stock bore without having to bore the crankcases. Simply bore the cylinder, install the piston, get a bump in compression, and you're at 103 cubic inches. "Not only that, but we also offer a 106-cubic inch piston option for the Harley-Davidson Twin Cam engine." EVO - Flat Top Vs. Domed If you have an EVO generation engine, then Sulecki says that "thanks to the Tracker piston, you have the choice between a flat top or a domed piston. The flat top piston has an 8.5:1 compression ratio, which is for a standard application. The domed piston is the higher performance offering with a beefy 10:1 ratio." Increased Displacement Wiseco says that its number one selling piston in the V-twin market is the Sportster big bore piston kit that takes the stock 883 cc engine up to 1200 cc. "That's a lot of power for a small-scale package - upsizing offers a nice increase in performance. The customer has the choice of stepping up to a slightly higher 9.5:1 compression ratio or going 'whole hog' with the 10:1 ratio. The latter option is preferred in the burgeoning Flat Track series and with Hooligan bike builders and tuners." WISECO PISTON INC. Mentor, Ohio, USA Tel: [phone] [email protected] www.wiseco.com AMERICAN MOTORCYCLE DEALER - NOVEMBER 2019 EVO www.AMDchampionship.com