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> 7R cases ?, what's so special?
DougC
post Jan 13 2005, 09:45 AM
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I think it's probably that they were made from magnesium but is there any other advantages and would that even be an advantage on a street car? Also, are they more prone to leak..seems like I read that somewhere?

Doug C
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lapuwali
post Jan 13 2005, 10:05 AM
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The 7R was what they made the 2.7s from, and the very last 2.4s were also made from them. A 2.4 made with a 7R case will, as stated, be much stronger because of the extra ribbing, without being anywhere near as heavy as the later aluminum cases (Turbo and SC). Magnesium is fairly weak, and the early mag cases will flex under the load a built engine can introduce, which can lead to bearing failure, or a broken crank. Pretty much all of the mag cases will leak some.
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Posts in this topic
DougC   7R cases ?   Jan 13 2005, 09:45 AM
brant   They had more reinforcment ribs than the earlier m...   Jan 13 2005, 09:49 AM
lapuwali   The 7R was what they made the 2.7s from, and the v...   Jan 13 2005, 10:05 AM
xitspd   The 7R is the only mag case that I would consider ...   Jan 13 2005, 10:49 AM
michel richard   This being said, my own personnal opinion is that ...   Jan 13 2005, 11:06 AM
michel richard   Sorry, Meant to write: If you want to rev to 9 ...   Jan 13 2005, 11:08 AM
sixnotfour   http://www.914world.com/bbs2/h...   Jan 13 2005, 11:14 AM
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