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Old 09-08-2009, 05:58 PM   #1
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Default Mazdaspeed valve cover

Sorry this is a bit of a dumb question but there isn't any difference between the Mazdaspeed miata valve cover and the standard 01-05 valve cover other than the pretty powder coating right? They both use COPs right?
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Old 09-08-2009, 06:02 PM   #2
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Sorry this is a bit of a dumb question but there isn't any difference between the Mazdaspeed miata valve cover and the standard 01-05 valve cover other than the pretty powder coating right? They both use COPs right?
the Miataspeed valve cover differs from the standard 01+ covers. The ms is more like th 99-00 cover
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Old 09-08-2009, 06:04 PM   #3
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Yeah... there is no difference other than the entire VVT assembly that the 01-05 uses and the MSM does not. The MSM valve cover is transferrable to the 99/00 cars...or a 94-97 since it has provision for the rear CAS.
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Old 09-08-2009, 06:04 PM   #4
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Both use the same coils but the covers are pretty different from each other. MSM does not have VVT, thus its valve cover is not provisioned as such. 01-05 car can't use MSM cover. MSM probably could use 01-05 cover if you but a block off plate over the VVT oil solenoid port but would be ugly.
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Old 09-09-2009, 02:26 PM   #5
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The '99 to '00 is not COP. The '01+ are though. And then there is the VVT problem...
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Old 09-10-2009, 02:05 PM   #6
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There's a small difference in the height of the spark plug holes on COP valve covers. It's possible this could cause problems getting the plug wires to fully seat on the plugs if you're not using a COP setup.
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Old 09-10-2009, 03:03 PM   #7
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So a MSM valve cover would work with a 96! I might need to get me one!
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Old 09-10-2009, 04:01 PM   #8
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This is a fantastic topic to discuss in the "Engine Performance" section. Please continue.
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Old 09-10-2009, 05:13 PM   #9
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This is a fantastic topic to discuss in the "Engine Performance" section. Please continue.
Everyone knows that anything that says "Turbo" on it immediately adds 15wph when installed on the car.
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Old 09-10-2009, 06:50 PM   #10
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Everyone knows that anything that says "Turbo" on it immediately adds 15wph when installed on the car.
Don't forget performance stickers and decals. I notice about a 5hp gain average per sticker.
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Old 09-10-2009, 07:09 PM   #11
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Plus it's red. The fastest of all colors. Removes 2-tenths from your quarter mile.
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