Thanks for offering to provide real world feedback.
To be honest, I am just looking for the most basic feedback to determine if this is a viable alternative to the m2/3/4 flywheel. For the price of a used m2/3/4 flywheel I can get a brand new mfactory unit, so it would be nice to know if it actually works.
The main thing I am looking for is are the misfires related to the factory flywheel resolved. But also, how is drivability with the m factory single mass flywheel?
We know the m2/3/4 flywheel fixes the misfire issue. The m2/3/4 flywheel also has really good drivability based on driving my friends ps2 135i. His car drove similar to stock and he had ssp clutch packs. But I would expect that since the m2/3/4 flywheel is dual mass.
I hope you get your programming issues figured out. I am sure you are going to be pumped once you get everything working.
I got the programming all fixed up and the car is on the road, so I can provide some preliminary results.
Things to keep in mind:
- Sport button doesn't work, so I can't really judge how it shifts in sport mode
- I'm unsure of both the transmission and clutch health (this was a used transmission after all)
- I have no baseline for comparison because I had an AT before this
- There *may* be an exhaust leak on the downpipe->midpipe connection, but the more I drive the more I think it's just chatter.
- There's a chance I screwed up somewhere along the way and something is just rattling under load. But, you can feel this through the whole vehicle...
However I can offer some feedback on my specific experience so far:
- There is quite a lot of noise and vibration caused by the single mass;
Especially at low RPM / high gears. Like, it's bad to the point I want to switch to the M4 flywheel already because this is a DD, not a weekend toy or race car. This video @ 0:15 doesn't do it justice, but gives you an idea.
- After taking a turn in D mode, the transmission tends to stay a gear too high (e.g. 3rd instead of 2nd) to prevent noise when accelerating
- At idle there is a noticeable amount of chatter, but it's not outrageous.
- Driving in D and S/M mode it shifts fine, doesn't seem to be fumbling around or anything. Again, I'm unsure of what right feels like though.