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

Will Roller Rocker cause false knock?

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Old Feb 2, 2004 | 02:29 PM
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Default Will Roller Rocker cause false knock?

Like title says. What are the fixes? 85 L98 TIA
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Old Feb 2, 2004 | 02:31 PM
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Default Re: Will Roller Rocker cause false knock? (GRX)

I've "heard" that they sometimes can, but I have not experienced it myself. Some of the LT1 guys go to an LT4 knock module. I would think one properly adjusted there was much less chance of that happening. Have you proved that you are you experiencing it?
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Old Feb 2, 2004 | 02:37 PM
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Default Re: Will Roller Rocker cause false knock? (scorp508)

EASE showed me that I might have it. It shows me a "slanted sine wave" on knock counts. I have DIACOM and WinALDL and will see what those render, but I was interested in opinions and stories regarding this issue. Its raining here today and I don't think I'll make it out there today.
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Old Feb 2, 2004 | 02:38 PM
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Default Re: Will Roller Rocker cause false knock? (scorp508)

The counts range from the uppermost to the lower most...forget the count...something like 130?
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Old Feb 2, 2004 | 06:27 PM
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Default Re: Will Roller Rocker cause false knock? (GRX)

The LT4 knock module is a good, cheap upgrade for any LT1, especially with roller rockers. The LT1 module was overly sensitive by design. 28 bucks at GMpartsdirect.com plus shipping. It'll prevent unnecessary timing retard.
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Old Feb 2, 2004 | 07:22 PM
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Default Re: Will Roller Rocker cause false knock? (Corvette Kid NC)

my car is a L98.
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Old Feb 2, 2004 | 07:33 PM
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Default Re: Will Roller Rocker cause false knock? (GRX)

As it says in your post! :bb :bb
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