I finally finished my obligatory break-in mileage requirements Friday night at 1am (technically Saturday morning) and was at the dealer by 7:45 am today getting the oil changed along with other necessary items as part of the "1200" mile service.
My apologies for the teaser threads...I was really just having fun with everyone and I know you'd all be good sports about it. Plus, I really didn't have much to post since I kept it <= 4,000 rpms up until roughly 400 miles.
Here's what I can share with you so far:
Torque - driving is radically improved from 3k+ rpms. I literally kept it at or below 4k rpms for the first several hundred miles and I had no problem overtaking cars on/off the highway, passing at will, etc. It has dramatically improved the everyday drive-ability of the car.
Horsepower - I have no idea really where I'm at with rwhp until I get to the dyno. The car is just so darn fast though compared to my prior modded M5. I hope to be able to provide some comparisons to a stock M5 by tomorrow and possibly a SL65 tomorrow as well. I did run against a 997 TT today here are the results:
Run 1 - Neck and neck (literally dead even), started at about 60-70 mph I believe
Run 2 - Instantly pulled on the 997 by several car lengths, started at about 40 mph, although I believe the driver was in the wrong gear
Run 3 - Neck and neck again, started at about 70-80 mph
I also ran against Scott's HPF stage 2.5 M3 and a nicely modded Ford GT. Obviously my eyes were bigger than my stomach
and got crushed by both.
The car is paired up with a new header setup thanks to XRayM5 (I owe you man!) which takes the stock headers and removes the 600-cell primary cats and replaces them with 200-cell OEM style cats (they're the same size as stock and made by the same manufacturer) for better flow. After 1,100 miles I have no CEL!!
Sound - I will not be able to do it justice, but I will tell you now it is perfect for me. It got the F1 sound back and just screams at high revs. Idle and cruise noises are not noticeable and non-intrusive in the cabin at all. You would think I have a stock car, yet when I get on it, she screams like an Eisenmann Race but without the total loudness. I will definitely post a clip by tomorrow for everyone. The F1 sound is back thankfully!
Gas Mileage - During early part of break-in I was getting 19.2 mpg and during the later part (which included blips on the tach to various levels 5k, 6k, 7k) I got 15 - 17 mpg. I haven't looked at it after today's runs though I suspect it should be less. After I get more city driving on the clock I'll share my MPG at that time.
SBM6 rode in the car with me during some of the runs and made some observations. He mentioned the car feels like it has boost that kicks in starting around 5500 (must be where the torque curve kicks up a notch) and just pinned him to the seat. Now, it doesn't pin you like a HPF stage 3
, but it's like nothing felt in the car before (except for the ASR folks I can imagine!).
I will post more tomorrow with some videos and sound. I appreciate everyone's patience with me and the teaser threads earlier.