C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Timing?

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Old Feb 28, 2010 | 04:44 AM
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zeek racing
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From: Benton Ar
Default Timing?

What should I set the timing at on a 85 tuned port?
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Old Feb 28, 2010 | 05:53 AM
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I believe your '85 is same as my '88, i.e. 6deg BTDC, though I like to run 8deg BTDC for a little crisper throttle response.
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Old Feb 28, 2010 | 12:23 PM
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Hi.
The 85 is sensitive for knocks and with 8 BTDC may be too much. It depends also of the fuel. Even thought the engine do not knock when driving it may knock and the ignition is turned back and you lose power.
I am not sure about the adjustment if to do it for less knocks without the closed ignition regulation loop.
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Old Feb 28, 2010 | 08:34 PM
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From: Benton Ar
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Thanks for the help!
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