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

Remove frisbee

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Old Feb 3, 2007 | 01:48 AM
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Default Remove frisbee

Where can I find info on removing the frisbee on my 1986 vert? Large change in performance?
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Old Feb 3, 2007 | 03:59 AM
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Undo bolts attaching it to water pump and keep for 50 years as collectors item.
May have to put a washer on each bolt as spacer if bolts too long.
Doubt you will see any SOTP improvement but anything that removes unwanted mass from the engine rotating assembly is generaly considered good.
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Old Feb 5, 2007 | 12:56 PM
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Greatest benefit is the improved maintenance access, especially when installing new accessory drive belt.
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Old Feb 5, 2007 | 01:00 PM
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What purpose was its intended purpose?
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Old Feb 5, 2007 | 01:11 PM
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86 does not have a frisbee, only 88+
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Old Feb 5, 2007 | 01:33 PM
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Originally Posted by vader86
86 does not have a frisbee, only 88+
Ahh....kept wondering what everyone was talking about.
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Old Feb 5, 2007 | 01:45 PM
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It's amazing how heavy it is!
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Old Feb 5, 2007 | 01:59 PM
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Supposidly it's there to dampen vibration from the air compressor via the serpintine belt. It makes a terrible frisbee! (I've tried)
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Old Feb 5, 2007 | 02:18 PM
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Originally Posted by rodj
Undo bolts attaching it to water pump and keep for 50 years as collectors item.
May have to put a washer on each bolt as spacer if bolts too long.
Doubt you will see any SOTP improvement but anything that removes unwanted mass from the engine rotating assembly is generaly considered good.
Removing the "frisbee" won't un-balance anything, right?
No bad things ever happened from removing it?
(other than what was mentioned in the thread about possible vibration from air compressor.)
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Old Feb 5, 2007 | 02:29 PM
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Thanks for the response
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Old Feb 5, 2007 | 03:12 PM
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Originally Posted by rdefonce
Removing the "frisbee" won't un-balance anything, right?
No bad things ever happened from removing it?
(other than what was mentioned in the thread about possible vibration from air compressor.)
I've never heard of anyone having a problem after removing the frisbee.
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Old Feb 5, 2007 | 03:24 PM
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Originally Posted by vader86
I've never heard of anyone having a problem after removing the frisbee.
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Old Feb 5, 2007 | 05:34 PM
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Removing the "frisbee" won't un-balance anything, right?
Yep, that's the word I got from Gordon Killebrew when I asked about the frisbee in 2001 at Carlisle.
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Old Feb 5, 2007 | 06:41 PM
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He be da man to know.
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Old Feb 5, 2007 | 06:45 PM
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Removed mine and all was ok until I turned on my ac. Severe vibrations when I hit 2200 rpm. Put it back on and all was ok. I have heard that it affects some cars and not others. Guess I was one of the unlucky ones.
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Old Feb 5, 2007 | 08:19 PM
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I took my frisbee off, no problems.
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Old Feb 5, 2007 | 10:29 PM
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Severe vibrations when I hit 2200 rpm. Put it back on and all was ok.
Had you checked the related A/C Compressor mounting brackets and the tensioner?? Did you check condition of the serp?

Gordon did tell me that an engineer once found A/C Compressor vibration after they went to the new style compressor in '88; so the installed the frisbee to dampen the belt acceleration.
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Old Feb 5, 2007 | 10:35 PM
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Mine became the anti-theft device for the bathroom key at the shop

no one has "lost" the key yet
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Old Feb 6, 2007 | 12:15 PM
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Originally Posted by 89 Paul in Cal
Mine became the anti-theft device for the bathroom key at the shop

no one has "lost" the key yet
HA HA HA, LOL.:-)))
Great use for it.
Hope no vibrations after it's removed . . .
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