mild cam--detonation

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Oct 31, 2020 | 04:41 PM

ben442

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Joined: Feb 2010

Posts: 400

From: Ontario

mild cam--detonation

Could a mild cam shaft (218/224) in a higher compression (10.5-1) engine cause detonation?

Oct 31, 2020 | 05:34 PM

cutlassefi

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Joined: Nov 2008

Posts: 8,477

From: Central Fl

Quote:

Originally Posted by ben442

Could a mild cam shaft (218/224) in a higher compression (10.5-1) engine cause detonation?

Yes. But it can also squeeze by, depending on the tune, gear etc.

Oct 31, 2020 | 07:47 PM

oldcutlass

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Joined: Oct 2009

Posts: 42,475

From: Poteau, Ok

When is the detonation occurring? It may be attributed to your timing settings, lean fuel feed, etc.

Oct 31, 2020 | 08:24 PM

ben442

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Registered User

Joined: Feb 2010

Posts: 400

From: Ontario

I've actually solved the problem of pinging with a timing adjustment and the addition of octane booster this past year, but was wondering if cam duration was a factor

Oct 31, 2020 | 08:50 PM

Fun71

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Joined: Feb 2013

Posts: 15,395

From: Phoenix, AZ

Yes, cam duration and valve opening / closing pointes are factors as they determine the cylinder pressure on the compression stroke (dynamic compression).