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upgrade pistons

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Old Jun 22, 2005 | 10:57 PM
  #1  
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srt04
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Default upgrade pistons

does anyone have a opinion on the 10:1 pistons out for srt's. i thought turbo cars ran better of low compresion, im new to this turbo stuff im a muscle car guy.
 
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Old Jun 23, 2005 | 02:27 AM
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PONY KILLER
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Default RE: upgrade pistons

I have know Knowlege of what you are asking. but as a general rule you do not both increase compresion and add turbo!
Why? commpresion increases pressure which incre
 
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Old Jun 23, 2005 | 11:50 AM
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Default RE: upgrade pistons

this seems a little jumbled. usually car manufacturers drop the compression in a turbo/supercharged cars because the forced induction just increases it. as for pistons, unless you plan on going extreme with the car, there is little to no reason to mess with them.
 
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Old Jun 23, 2005 | 01:51 PM
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Default RE: upgrade pistons

stock compression ratio is 9.4-1 so I dont see where 10.0-1 would hurt too bad.

higher compression ratio just means higher cylinder pressures and in turn leads to the engine being more prone to detonation. As long as you get the timing and fueling set properly it wont matter. You also will have to start running higher octane gas and probably think about either water or alcohol injection to help quell detonation.

I'm not saying go run c16 or anything but you might want to seriously think about adding a bit of toluene to the tank from then on.

personally, I'd leave the c/r alone and work the head and valvetrain over. Off boost power is very nice in our cars already due to the stock c/r and long stroke it has.
 
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Old Jun 23, 2005 | 07:32 PM
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Default RE: upgrade pistons

negative stock compresion is 8:0 to 1
 
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Old Jun 23, 2005 | 08:02 PM
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Default RE: upgrade pistons

ooo yeah, no clue where I got that number from hah. but technically, you're wrong too

8.1:1

http://www.hotrod.com/techarticles/e...srt/index.html

anyway, I still stand by what I said for everything else. as long as you can keep detonation at bay you'll be good.
 
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Old Jun 23, 2005 | 08:05 PM
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Default RE: upgrade pistons

everyones a comedian.
 
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