Could someone help me with this.....
Thread Starter
Super Member
Joined: Jul 2012
Posts: 737
Likes: 60
From: HESPERIA CA
2011 E550
Could someone help me with this.....
Ok so guys, I was monitoring my A/F ratios and timing on my car today and something about the AFR had me worried. At WOT the lowest the AFR will go down to is around a 12.7. Isn't that seriously lean for WOT? The timing goes down to 20.5 and 21, that I don't know if it's good or bad. Still learning what timing is. But anyway, what do you guys think? Isn't 12.7 a bit too lean? Btw, this is on the stock MB tune for the 5.5 liter V8.
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Joined: Oct 2010
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From: Southern US
2010 E550, 273 Engine: 2012 S550, 278 Engine
Ok so guys, I was monitoring my A/F ratios and timing on my car today and something about the AFR had me worried. At WOT the lowest the AFR will go down to is around a 12.7. Isn't that seriously lean for WOT? The timing goes down to 20.5 and 21, that I don't know if it's good or bad. Still learning what timing is. But anyway, what do you guys think? Isn't 12.7 a bit too lean? Btw, this is on the stock MB tune for the 5.5 liter V8.
Thread Starter
Super Member
Joined: Jul 2012
Posts: 737
Likes: 60
From: HESPERIA CA
2011 E550
