Hey guys, i have been doing endless and endless hours of research on how to make my M42 a stroker and a supercharger application. Im going to send my head into Vac Motorsports to have the stage 3 performance rebuild done, that includes: all the necessary machining, heat testing, balancing of new double coil springs and TI retainers, ect.
http://store.vacmotorsports.com/vac-...ead-p1019.aspx. I am having my cams re ground by Dougherty Racing in Shingle Springs California, i have done some reading and the cams that are about $1000 are the same cams as stock just redone. The grinding is about $325 ( i will eventually buy brand new ones). ARP head studs (of course), new hydraulic lifters, all brand new timing chain, rails and guide, tension piston, bottom and top covers and seals. Thats my top end plan, now the bottom end is whole other world. I am getting custom JE forged M3 86 mm pistons with total seal gapless rings , high heat ceramic crowns, moly coated skirts, heavy duty wrist pins, contact reduction grooves, and double pin oilers. Would that be the best application for my pistons? Im thinking so. Arrow 135 mm Connecting rods, crankshaft and rod bearings, crankshaft main seals, ARP connecting rod bolt kit. I know my block can be bored out to 86 mm to increase my liter. The supercharge kit is from,
http://www.koperformance.com/BMW/tur...harger_kit.htm. I cannot find a M47D20 crankshaft ANYWHERE i need help finding one for this to actually work correct. I would like to know some feedback on this plan, thanks guys.
