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Is this an AP1 flywheel?

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Old 12-08-2013, 07:19 PM
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Default Is this an AP1 flywheel?
I've never seen an AP1 flywheel like this...







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Old 12-08-2013, 07:49 PM
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how much does it weigh ?
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Old 12-09-2013, 02:50 AM
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Looks like an OEM AP1 flywheel to me. (I've changed probably around 40-50 S2000 clutches, so I am very familiar with them.)

Here is a thread to back up my claim. You can see the clear differences between AP1 and AP2 flywheels and the identifiable casting differences that make yours an AP1.

https://www.s2ki.com/s2000/topic/106...l-differences/
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Old 12-09-2013, 01:43 PM
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It weighs 11-12 lbs
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Old 12-09-2013, 03:26 PM
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Looks like chromoly/aftermarket. Oem flywheel is cast.
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Old 12-09-2013, 03:35 PM
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Ah yes, it is indeed. I didn't catch that with the rust on there. With it being 11-12 pounds I can't say for sure what brand it'd be. It's very similar in shape to the AP1 OEM flywheel. Fidanza maybe?
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Old 12-09-2013, 04:01 PM
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Originally Posted by Billman250
Looks like chromoly/aftermarket. Oem flywheel is cast.
That's why I posted because I've never seen one with side before:


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Old 12-09-2013, 06:38 PM
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Weighs exactly 11.2
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Old 12-10-2013, 09:25 AM
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Bottom line, any chromoly flywheel you run will be great. I would definitely use it.

Find some one to properly "step grind" the flywheel.

1 measure current step-height
2 remove dowel pins
3 grind friction surface
4 grind PP mounting surface to original step-height
5 re-install dowels

Stay away from aluminum flywheels.
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Old 12-10-2013, 10:52 AM
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The Flywheel is Not Chrome Moly! If it was it would weigh about 5 lbs. its cast dirty OEM flywheel! It needs to be lathed and wiped (cleaned) prior to install.
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