 Ideal pistons for turbo? Dished or flat top??, Should I sell my new flat top 2.0 P/C's? |
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| Mueller |
 Mar 21 2003, 03:07 PM
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#1
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914 Freak!  Group: Members Posts: 17,146 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None 
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Compression ratio's equal which is more ideal for a turbocharged motor?
flat top?? dished?? I have a set of brand new (used for 300 miles) 2.0 flat top Euro pistons and cylinders on my current motor. The motor is sitting on my workbench waiting for me to finish putting it back together. I do not want to drop the motor in a few months when I get around to finalizing a turbo design for it. |
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| Dave_Darling |
Mar 21 2003, 03:36 PM
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914 Idiot Group: Members Posts: 14,980 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California
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Just put it together and go. The difference (if any) is not worth the extra hassle of waiting around for a new set of pistons, nor the $$ you'll have to eat from buying a different set of pistons than what you have now.
Put it together and drive it, Mike! Besides, I'm pretty sure you'll be pulling the motor apart again in three months anyway, no matter which way you go! (IMG:style_emoticons/default/tongue.gif) (IMG:style_emoticons/default/biggrin.gif) --DD |
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| echocanyons |
Mar 21 2003, 03:39 PM
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#3
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Advanced Member Group: Benefactors Posts: 2,094 Joined: 24-December 02 From: Bay Area, CA Member No.: 7 Region Association: Central California 
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A general rule as I understand it is:
Flat or domed piston=less or lesser combustion chamber(respectively (IMG:style_emoticons/default/wink.gif) ) This = too a higher compression ratio a dished piston would have a lower compression ratio for the reverse reasons Turbo's like lower compression so you can biuld it up with lots o boost |
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| echocanyons |
Mar 21 2003, 03:40 PM
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#4
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Advanced Member Group: Benefactors Posts: 2,094 Joined: 24-December 02 From: Bay Area, CA Member No.: 7 Region Association: Central California
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oops I guess I didnt catch that they were the same CR
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| Brad Roberts |
Mar 21 2003, 03:51 PM
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#5
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914 Freak! Group: Members Posts: 19,148 Joined: 23-December 02 Member No.: 8 Region Association: None |
I know what I would use:
Bus pistons or a J+E copy of them. Very thick dished dome that can handle a ton of heat. The tops of the stock Euro pistons is semi thin. Wicker has burned holes in his race engines several times and I get to see the aftermath of running the engines too lean. B |
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