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Old 11-17-2010, 12:25 AM   #30
FDwarrior
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Join Date: May 2008
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Quote:
Originally Posted by NoDOHC View Post
I wish you would post AFR on the graph (or are you not logging it to the dyno?)

I am curious what more experienced Turbo engine tuners run, as a lot of people I talk to say nothing lean of 11:1 and I think that is leaving a lot of power on the table.

Peak power (for pump gas) is 13.3:1 (0.9 lambda). There is not much gain to be had lean of 13.0:1. As far as I know, this holds true for any chamber pressure - it is definately true for naturally aspirated applications.

Your VE must be relatively high if you are running 11:1 AFR.
Honestly I should let Logan respond, but I would say he is about as experienced as it gets. He currently has the highest horsepower from a 2 rotor n/a using a street port. He also just made 421, with allot more left from an n/a 3 rotor using a street port and semi-p port. Rally I would not let any one else touch my car. I would sell my car before having to go some where else if those were my only two options. Im just talking from my experience as a customer, along with what I have seen come out of there shop. I know for a fact there is no other n/a 3 rotor that even comes close to his. Logan's semi-p port is almost touching documented full p-port numbers. I would not be concerned with experience.
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