M5 Expert (>4000)
Join Date: Feb 2001
Location: west palm beach. fl.
Thanked 1,619 Times in 1,227 Posts
Well I think my car achieved pretty good results with just 8 psi and stock headers compared to another similar setups. I'm sure 550+ is not a big deal with headers, new pulleys and a retune and I'm planning to proove it. Since one healthy M5 is capable of 600 wheel I don't see a reason why I couldn't?
550 is very good. I think Barry's car (Steve's old car in California) made 549 at the wheels. Best number I remember seeing.
Make sure you get to look at the AFR's. You need lots of fuel, in part to help cool the intake charge. Compressed air generates lots of heat.
Dinan Stage 3 suspension, SS jet coated headers, ESS SC kit w/ 1 range colder NGK's, 92mm pulley, 440 Big Greens, TTFS alpha N tune for meth, RK plenum plates, SBC Endurance Stage 3 Kevlar performance clutch setup, "Jed" lightened DMFW, open brake ducts, TEC cupholder, U.S.(Euro style) tilt/slide armrest, 6k HID fogs, Umnitza bi-xenon flamethrowers w/6k super white low beams, rear fogs, V1/Stealth1, dual head LI, 2.65 diff w/40% lockup/2x dynamic, compact spare, M5 logo trunk carpet, Euro trailer hitch, Mocal oil cooler, ACS type rear spoiler, Rogue custom SSK and tranny mounts, ST 355 BBK (fronts), BP sway bar brackets, Bluetooth retrofit, Speedhut boost gauge (20 psi), Dinan TB's and VS, KB BAP, Howerton/HFS-3 Aquamist WI trunk setup (50/50), with 2nd gauge in rear view mirror, aftermarket trunk mounted sound system integrated into stock unit (amps, crossovers, sub and speakers).......