Evening Bimmersport,
I've waited a few weeks to post this to ensure the tune worked out any adaptations and allow for adequate driving situations.
Some context.... Last month my beloved E46 was due for its annual checkup at HellBM. While I was there, Ray informed he'd finished developing a custom tune for the E46 M3 and asked if I would be interested. Given he was 18kw clear at the top of our recent dyno day leaderboard, how could I say no!
First things first, Ray is the best in the business when it comes to dealing with E46 M3's. The fact he has 5 x S54 powered (from last count) vehicles of his own is a testament to this. And if Ray isn't under the bonnet, rest assured his knowledgable son Sam will be giving your pride and joy a good once over while it's up on the hoist.
Now... The tune.
Prior to installing this, I already had an altered map which Tom (M3 Power) had installed, providing a significant gain over stock figures (I'm 'A2K' in the board above).
As part of this tune, I requested Ray do the following:
- Top Speed Limiter Removed
- Exhaust burble on overrun
- Shift lights (for a 6-speed manual)
- M Track Mode (soon to be coded)
Even though my car had already been toy'd with, after 800kms of driving I've felt a significant improvement. I've bullet-pointed my key takeaways so far:
The low-mid range power and torque increase was instantly noticeable
No longer do I feel a sluggish response when cruising around town in a higher gear
Response through the rev range is much stronger and linear all the way to red line
Throttle response has remained smooth and "sport" mode is highly enjoyable and no longer jerky
Fuel economy has remained consistent, if not slightly improved
Since getting the tune, I've also attended a track day at Pukekohe. While I'm no Lewis Hamilton, I was able to improve my previous personal best by almost 3 seconds a lap (based on my Track Addict app) and was pulling away from friends on the back straight which I had previously been neck-and-neck with on my last outing. The improved throttle response gave me a lot more confidence coming out of corners and despite my amateur driving ability, I certainly felt faster!
I will be sure to get another Dyno run shortly to prove it's not just my butt talking!
Ray has since told me this tune is now available to Bimmersport members and I highly recommend it based on my experience.
Thanks again to the team at HellBM! Any questions, please feel free to ask.
Cheers
Alex
A recent pic of the car: