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Old October 20th 2009, 07:03
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Wally Wally is offline
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Join Date: Nov 2002
Location: The Netherlands
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Quote:
Originally Posted by 70Turbobug View Post
The main enemy is temperature and rpm.A cast piston doesn´t trap the the heat as much as a forged piston..
I disagree humbly on both accounts though..
You main enemy in a turbo engine is knock. Period.
You really don't have the heads/headflow to worry about rpm.. (sorry)

The heat retention/conductivity differences of cast and forged alu is really futile in engine operation circumstances.

Knock is your enemy and you WILL encouter it sometime during tuning.
Then you have either forged ring lands or cast ring lands...
Thats my main point
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