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Author Topic: Piston Weights  (Read 5726 times)

Offline wobble

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Piston Weights
« on: July 16, 2010, 09:17:39 AM »
Weights stated below include piston, rings, clips, and wrist pin.

Stock piston setup is 535-540 grams

JE 12.5:1 102mm = 487.7 grams
JE 10.75:1 105.5mm = 490 grams
JE 12:1 105.5mm = 506.8 grams
Venom 14.25:1 105mm = 521 grams
CP 11:1 102mm = 524.9 grams
CP 12:1 105mm = 533 grams
Wiseco 11:1 103mm = 535.4 grams
CP 11:1 102mm (corrected deck height) = 545 grams
RE 14:1 102mm Lightweight = 545 grams
CP 13:1 105mm = 554-559 grams
RE 14:1 105mm Lightweight = 575-579 grams
Barkers Diamond 14:1 105mm = 596 grams
« Last Edit: July 30, 2010, 08:54:18 PM by wobble »
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Offline Colorado700R

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Re: Piston Weights
« Reply #1 on: July 16, 2010, 09:19:34 AM »
When I pull my CP 102 bore 12-1 I'll weigh it to add to the list Dave :thumbs:

Thanks for the post!
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Offline Peelz

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Re: Piston Weights
« Reply #2 on: July 16, 2010, 09:39:02 AM »
very cool.
« Last Edit: July 16, 2010, 09:52:19 AM by PeelsSE2 »
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Offline wobble

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Re: Piston Weights
« Reply #3 on: July 16, 2010, 09:41:27 AM »
Read the 2nd line of my post.  ;)
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Offline Peelz

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Re: Piston Weights
« Reply #4 on: July 16, 2010, 09:52:51 AM »
Quote from: wobble on July 16, 2010, 09:41:27 AM
Read the 2nd line of my post.  ;)

I don't know what you are talking about. :ninja: :lol:
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Offline Troy31

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Re: Piston Weights
« Reply #5 on: July 16, 2010, 08:13:47 PM »
Quote from: Colorado700R on July 16, 2010, 09:19:34 AM
When I pull my CP 102 bore 12-1 I'll weigh it to add to the list Dave :thumbs:

Thanks for the post!
You do know it won't run without a piston?
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Offline Spartan

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Re: Piston Weights
« Reply #6 on: July 16, 2010, 08:28:18 PM »
Quote from: Troy31 on July 16, 2010, 08:13:47 PM
Quote from: Colorado700R on July 16, 2010, 09:19:34 AM
When I pull my CP 102 bore 12-1 I'll weigh it to add to the list Dave :thumbs:

Thanks for the post!
You do know it won't run without a piston?

He has a replacement to go in there :batman:
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Offline DL700

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Re: Piston Weights
« Reply #7 on: July 30, 2010, 08:29:08 PM »
the NEW 11:1 CP 102 bore are about 5 grams heavier then stock on my scale...
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Offline wobble

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Re: Piston Weights
« Reply #8 on: July 30, 2010, 08:31:25 PM »
Thanks Daniel!

Wow. 17 grams heavier than the old version? Sounds like they added quite a bit of material to get it corrected deck height.  ???
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Offline DL700

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Re: Piston Weights
« Reply #9 on: July 30, 2010, 08:35:38 PM »
yes, stock weighed 535-540 and the cp 545...

they added the material to the top of the piston to bring it up .030 from before
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Offline wobble

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Re: Piston Weights
« Reply #10 on: July 30, 2010, 08:38:29 PM »
Thanks! I appreciate the input.  :thumbs:

I noticed the three 105 bore 13:1 pistons I weighed were 554, 556, and 559. So there is definitely an acceptable +/- allowance for them, but this does give a good general idea.
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Offline Spartan

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Re: Piston Weights
« Reply #11 on: July 30, 2010, 09:00:59 PM »
So the new CP 11:1s are corrected deck now?
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Offline DL700

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Re: Piston Weights
« Reply #12 on: July 31, 2010, 11:01:09 AM »
Quote from: Spartan727 on July 30, 2010, 09:00:59 PM
So the new CP 11:1s are corrected deck now?

yes and have been for a while.. same with the 12.
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Offline Spartan

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Re: Piston Weights
« Reply #13 on: July 31, 2010, 04:34:12 PM »
So do you happen to know if the one I got from you is corrected or not? It was about a year ago now...
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Offline wobble

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Re: Piston Weights
« Reply #14 on: August 01, 2010, 01:13:47 AM »
Look at the spec sheet that came with it.
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