I did MegaSquirt my 280SL-85 (m110) a year ago, both fuel and ignition and the engine runs better then ever before. I have installed a Wide band lambda and gauge which MS use to hit the AFR Target.
My question is how lean I can set the AFR on my engine depending on it's character. I have no knowledge of how compression, stroke, bore etc affects the fuel mixture. I know there is engines running as lean as 16 up to 25???, not old MB engines though.
As it is now I lay at AFR 12.5 at WOT and 15-15.5 at cruizing. It feels like I could leaner the mixture more since there is no knocking/pinging or hesitation.
Just do it you think... well... I don't wont to challenge... at least I need to know how I can detect if the mixture is to lean before there is holes in my pistons.
How lean is usually recommended on stock motors?
Has anyone any thoughts around this to share with me...
How lean mixture do I dare to set on Megasquirted straight 6
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Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0). For tuning/troubleshooting questions, please attached a datalog and your MSQ file to your post.
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.
How lean mixture do I dare to set on Megasquirted straight 6
kind regards... Peter
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Matt Cramer
- Super Squirter
- Posts: 2951
- Joined: Sat Jul 03, 2004 11:35 am
Re: How lean mixture do I dare to set on Megasquirted straig
You can run in the 13's at WOT if there is no detonation. At cruising, you can lean it out until it misfires in most cases without worrying about engine damage.
