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Old 04-28-2010, 03:13 PM   #25
Beastly Adventurer
Joined: Nov 2006
Location: On a RTW ride - currently SE Asia on the way to OZ
Oddometer: 5,427
Originally Posted by The Griz
Well, soooooorrry, there Lukas! I guess I'm just fucking clueless then!! I meant that I gravitate more towards the stoi ratio of 14.7:1. I actually found myself achieving the best results on my KLR's with about 13.5:1. Best power and fuel economy. It's common knowledge that, of course, stoi 14.7:1 is hardly achievable on any engine that constantly changes RPM and load.
No offense Griz, but yes, it would appear that you are clueless. I'm far from an expert myself but what you are saying just doesn't make any sense.

I am not sure why "it is common knowledge that 14.7 is hardly achievable", and also why you would even try to tune for that - unless for emission reason as I mentioned above?

A properly tuned engine will target around 12.6 under full load for max power, and then lean out to about 15.4 under light load to cruise economically. With correctly set up EFI this is entirely achievable.

What did you use to tune your KLR then?
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