1998 BMW E39 540i 6-speed manual (non tu)(non sport)
Engine is at about 60k miles while body is at 150k miles
Tuner considers this dyno to be a very realistic dyno, however we couldn't get accurate readings of torque.
1st run made 244 whp corrected and 256 whp uncorrected
2nd run made 247 whp corrected and 258 whp uncorrected
Engine seems to be knocking near peak power unless I use an octane booster along with the 91 octane I usually use. Still trying to figure out what to do to remedy this issue other than changing to colder plugs which I've already done.
I consider the car to be mostly stock but engine/drivetrain mods include:
•Dinan CAI
•Catback custom 2.5" true dual exhaust with x pipe and cutouts and mufflers for changing sound (had to cutout my spare tire well for this)
•13lb flywheel along with fully serviced drivetrain
•Fan clutch delete
•CSF radiator
