the crank shaft its harmonic balance?

DEpointfive0 · 01-21-2013, 07:32 AM

^rep added

Red__Zed · 01-21-2013, 07:46 AM

Quote:

Originally Posted by DEpointfive0

^rep added

Trilitheum · 01-21-2013, 07:55 AM

^^ Just to correct an error so people don't get wrong info, Cast Iron has a CTE (Coefficient of thermal expansion) of 5.8 10e-6 in/in deg F, Aluminum 6061 or 7075 has a CTE of ~13.0 10e-6 in/in deg F, (not picking on you DE) the cast iron actually expands less than the billet aluminum by about half as much.

DEpointfive0 · 01-21-2013, 07:58 AM

Quote:

Originally Posted by Trilitheum

^^ Just to correct an error so people don't get wrong info, Cast Iron has a CTE (Coefficient of thermal expansion) of 5.8 10e-6 in/in deg F, Aluminum 6061 or 7075 has a CTE of ~13.0 10e-6 in/in deg F, (not picking on you an in way DE) the cast iron actually expands less than the billet aluminum by about half as much.

... Maybe with a nice quality piece of cast iron... That POS the crank pulley is made from... Mehhhhhh... I bet it expands more, or more importantly, unevenly vs aluminum

(That's more what I meant, the uneven expansion in shítty cast iron)

01-21-2013, 07:32 AM	#1 (permalink)
DEpointfive0 A True Z Fanatic Join Date: Jan 2012 Location: SoCal Posts: 14,824 Drives: a lot Rep Power: 17152	^rep added Red__Zed likes this.

01-21-2013, 07:55 AM	#3 (permalink)
Trilitheum Base Member Join Date: Feb 2011 Location: Ontario Posts: 210 Drives: '11 370z 6M KAD Spt Rep Power: 15	^^ Just to correct an error so people don't get wrong info, Cast Iron has a CTE (Coefficient of thermal expansion) of 5.8 10e-6 in/in deg F, Aluminum 6061 or 7075 has a CTE of ~13.0 10e-6 in/in deg F, (not picking on you DE) the cast iron actually expands less than the billet aluminum by about half as much. DEpointfive0 likes this. __________________ 2011 Nissan 370Z Touring/Sport, 6MT, KAD Last edited by Trilitheum; 01-21-2013 at 07:58 AM.

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