Originally Posted by
chuK_138
The tune is a canned tune from EC that had 2 minor tweaks adjusted, since I had them modify an existing one they had on file. Crazy thing is I haven't had a retune since adding the manifolds. Then it decides to go crazy fast a week later! The previous 5 or 6 12.0 runs should answer the driver questions anyone may have.
On the "factory freak" subject, I do consider the car to be one of the freaks actually! It's always run faster than other comparably modded cars, going back to when it had just a DIY CAI. Kim likes to say it was built on a Wednesday.
I think you are right about your freak Chuck. Nice car.
Your example may also highlight the power in running an air fuel ratio that is aggressively closer to max power rather than conservatively rich. You are probably running a little leaner with the manifolds and making a little more power. I'd love to know what your air fuel ratio is.
Originally Posted by
velociabstract
I worried about my car being a monday or friday car. My first dyno numbers were …… heartbreakingly low. I've since come to the conclusion that AMG engine builders don't have a bad day. And dyno numbers are exciting but 1/4 mile mph tells the true story of horse power.
Les
Les, what about IHI supercharger machinists? I have thought for a while my supercharger may be a bit "loose". Stock, I never saw more than 14.0 pounds of boost and my best time was a 13.2. With the 178 / 65 stacked pulleys the most boost I ever see is 21 psi where others have reported as high as 23 psi. I am very happy with my best ET of 11.85, but I would love to run an 11.5x.
