Timing & Knock
Thread Starter
TECH Resident
Joined: Sep 2009
Posts: 859
Likes: 2
From: Frozen Tundra, WI
Timing & Knock Will an engine always lean out before it knocks (pre-ignition)??
If I don't ever let it get leaner than say 14.5:1 then it won't knock...wot would be no leaner than 13:1-ish??
Just checking because I have read a few posts about how the motor will lean out if the timing is advanced which makes sense.
So...can wideband = knock sensor??
If I don't ever let it get leaner than say 14.5:1 then it won't knock...wot would be no leaner than 13:1-ish??
Just checking because I have read a few posts about how the motor will lean out if the timing is advanced which makes sense.
So...can wideband = knock sensor??
Thread Starter
TECH Resident
Joined: Sep 2009
Posts: 859
Likes: 2
From: Frozen Tundra, WI
I should add that I don't have knock sensors on my application so I am looking for another way to tell me that I am in the "danger zone" with too much timing. I guess the bottom line is, does the motor always lean out (over 14.7:1) before pre-ignition (knock)?? Or, can you get knock if it is richer than that??
Banned
Joined: Oct 2009
Posts: 992
Likes: 1
So how are you firing the spark plugs? No computer at all? these newer engines arn't like the old cast iron carbed motors. They could soak up all that knocking and stay together, these engines will split the cylinder walls if it knocks hard.
Trending Topics
Thread Starter
TECH Resident
Joined: Sep 2009
Posts: 859
Likes: 2
From: Frozen Tundra, WI
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo Banned
Joined: Oct 2009
Posts: 992
Likes: 1
Its designed for LS motors without any knock sensor features? Dam I woooodn't use it, modern engines DEMAND modern electronics. You can tune your heart out and run it pig rich and still have it knock. Look at GM's stock tunes WITH knock sensors they still run them rich. GM doesn't like paying for broken pistons and cracked blocks.
I have ABSOLUTELY no knowledge when it comes to carbed LS1 engines, but i do know every time someone does a tune and turns the knock sensors off shortly there after they are looking at broken parts. I woooood research it some more, there has to be a better system out there for carbed LS engines.
I have ABSOLUTELY no knowledge when it comes to carbed LS1 engines, but i do know every time someone does a tune and turns the knock sensors off shortly there after they are looking at broken parts. I woooood research it some more, there has to be a better system out there for carbed LS engines.
