JHM Blown V8 Audi S4 Goes 11.91 Stock Bottom End Drag & Track by turboandstance - December 12, 2018October 4, 2020 JBONES in his JHM stage 1 supercharged Audi S4 (B6) V8 broke the stock bottom end record recently. The owner has plans for a nice build over the winter, and I hope we can catch up with him again to see what it will do. –BUILD LIST– JHM Parts: Stage 1+ supercharger kit pushing about 7 psi Version 2 headers with 2.75 inch mid-pipes and non-resonated catback exhaust Modified intake manifold with port matched spacers Lightweight flywheel and 5R clutch All of their shifter parts: custom delrin knob, short throw shifter, solid linkage, delrin stabilizer rod bushing, upgraded cross rod OEM RS4 front brakes with lightweight front 365 mm rotor rings Rear BBK Misc: OEM RS4 0A3 transmission and B6 A4 rear diff swap Wavetrac front and rear limited slip differentials USP Motorsports metal slave cylinder and SS line conversion with a MA performance clutch delay valve Killer Chiller setup including the drag valve and water bypass valve AKmotorsports tubular front subframe OEM european RS4 seats front and rear Probably a bunch more suspension and other mods. Otherwise with a stock well maintained engine, Avus wheels, and stock sized 235/40/18 Michelin Pilot Super Sport tires. According to the scale at Atco the car weighs 3,790 pounds without me in it. Leave a comment