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Bought used CP pistons...how much piston to wall clearance?

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Old 11-24-2010, 11:59 AM
  #41  
SexyRob
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good info, thanks.

also guessing e85 works better with high CR engines?
Old 11-24-2010, 12:03 PM
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De La Money
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epic????
Old 11-24-2010, 12:42 PM
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GT-ER
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Well, I already got the info I needed. CP is apparently closed but someone was able to answer the question most of you guys seemed to completely miss. Thanks for nothing.

No reason for me to keep this bumping this thread. Three pages of crap just to get a simple question answered, incredible. In the next week or so I will be posting up my complete build with pics and info...THEN you guys can criticise all you want.

Last edited by GT-ER; 11-24-2010 at 12:55 PM.
Old 11-24-2010, 01:34 PM
  #44  
OldManZ350
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http://www.motorsportsdigest.com/tech/forced2.htm
Old 11-24-2010, 03:05 PM
  #45  
350Z400rwhp
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Originally Posted by OldManZ350
Great article!
Old 11-24-2010, 05:26 PM
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Nealoc187
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Originally Posted by GT-ER
Well, I already got the info I needed. CP is apparently closed but someone was able to answer the question most of you guys seemed to completely miss. Thanks for nothing.

No reason for me to keep this bumping this thread. Three pages of crap just to get a simple question answered, incredible. In the next week or so I will be posting up my complete build with pics and info...THEN you guys can criticise all you want.


I think it has more to do with the fact that most people here just find you annoying and don't want to help you, rather than an inability to answer your question.
Old 11-24-2010, 05:41 PM
  #47  
Spork
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Originally Posted by De La Money
well as long as the are checked for roundness, and scolding, and imperfections, if a TRUSTED machine shop gives it an okay. then why not. Pistons arent like condoms. lol more or less like tupperware. lol
What about metal fatigue?


Why the hell would someone build an engine out of used internals? Sad...
Old 11-24-2010, 06:30 PM
  #48  
SexyRob
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Originally Posted by Spork
What about metal fatigue?


Why the hell would someone build an engine out of used internals? Sad...
maybe because it's a great way to achieve the same thing and save money while you are at it.

I don't believe in sacrificing on quality parts but there is no reason you can't reuse a rod or a piston if it's in good condition. Used parts should be throughly inspected before use, but if everything checks out there is no reason not to.

but you are probably the guy who replaces every gasket regardless of its condition when you change out plenum parts.

wish I had the cash to blow to use new parts on everything.
Old 11-24-2010, 06:55 PM
  #49  
Quamen
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Originally Posted by Erdem
bad Idea for a T or TT setup, but good idea if you plan on staying on a SC with a Maximum of 17psi~

edit: don't know what the exact maximum would be, think it also depends on the rods and @ which rpm range the XXpsi comes in and so much more any help?
With E85 you could easily run 11:1 and mid teens for boost on a turbo or supercharger with the stock redline.

When we were racing Pikes Peak International Hillclimb Rhys Millen was running 20+psi, E85 and 14:1 CR in his Solstice with a higher redline than a VQ. If memory serves me right, he told me he was running 24psi. I forget what the calculated dynamic CR was though which is what really matters.
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