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Steve@Rennsport
Steve@Rennsport is offline
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Join Date: Jul 2001
Location: Portland Oregon
Posts: 7,007
Quote:
Originally Posted by lucittm View Post
I noticed on my engine (and the parts view) there are no washers under the nuts that retain the heads. Yet, the Supertec, ARP, and Raceware sets all come with nice CNC/hardened washers. Anyone know why? It seems this would affect the torque values...

Also, one of the manufacturers, Raceware, claims up to 15 degree cooler engine temperatures with their 12-point aircraft nuts. How is this possible? If the nuts have no cooling fins on them how can they dissipate any more heat than stock nuts?

Curious,
Mark
Mark,

964 and 993 engines use a different head nut that incorporates a "washer" into the design. Earlier engines used a separate washer, similar to the ones offered by the aftermarket head stud manufacturers.

I won't comment on Raceware's absurd claims about such a product reducing engine temperatures,...............
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Steve Weiner
Rennsport Systems
Portland Oregon
(503) 244-0990
porsche@rennsportsystems.com
www.rennsportsystems.com
Old 09-19-2008, 03:11 PM
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