E85 ECU Tune: Pros/Cons?
Thread Starter
Senior Member
Joined: Sep 2004
Posts: 478
Likes: 6
CLK63 AMG Black Series
E85 ECU Tune: Pros/Cons?
Has anyone created or running an E85 ECU tune on a M156 motor?
Feel free to add to the list...
Pros:
1. Better performance with the estimated 100 octane
2.
3.
....
Cons:
1. MB fuel system not designed for E85???
2.
3.
....
Thanks in advance!
Feel free to add to the list...
Pros:
1. Better performance with the estimated 100 octane
2.
3.
....
Cons:
1. MB fuel system not designed for E85???
2.
3.
....
Thanks in advance!
Member
Joined: Sep 2013
Posts: 149
Likes: 0
From: Springfield, VA
2008 CLK63 Black Series; 1978 Toyota Land Cruiser; 2015 BMW R1200GSA; 2003 Porsche 996 Turbo (gone)
That said, I realize "worth" is a relative thing
Thread Starter
Senior Member
Joined: Sep 2004
Posts: 478
Likes: 6
CLK63 AMG Black Series
I agree you can't get the full potential of a ECU tune without putting more air in and letting more out. However, with the group buy we had at Weistec i felt it was 'worth' it. My focus was the rev match and the ECU flash was more impulse than a need. 
After the Weistec tune the mid to top end rpm range felt noticeably stronger. Not mind blowing but noticeable. I drove one of their Stage 2 cars and that was very different and smooth power all the way through the RPM range. Would that be 'worth' $15K, not in my opinion. But again, I'm not trying to go any faster...
After the Weistec tune the mid to top end rpm range felt noticeably stronger. Not mind blowing but noticeable. I drove one of their Stage 2 cars and that was very different and smooth power all the way through the RPM range. Would that be 'worth' $15K, not in my opinion. But again, I'm not trying to go any faster...
