Aluminum vs magnesium vw engine case

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No, never heard of a pure Aluminum VW engine case. I was under the impression that all the aircooled VW motors were made of a Magnesium-Aluminum alloy. I think the new Mexican cases are cast using the later, stronger alloy - but I could be wrong What do you mean by "so many problems with Magnesium"? It's real easy to warp or crack a set of aluminum heads on a watercooled car where 'overheating' is close to normal operating temp for our aircooled engines. No OEM case was ever made entirely from aluminum. Later cases did have a higher aluminum content, however, making them somewhat stronger in exchange for a little more weight.

Aluminum vs magnesium vw engine case

Post by sideshow » Mon Aug 11, am. Post by raygreenwood » Mon Aug 11, pm. Post by sideshow » Tue Aug 12, am. Post by raygreenwood » Tue Aug 12, pm. Post by Scott Novak » Thu Aug 14, pm. Post by rcb78 » Fri Aug 15, am. Post by sideshow » Fri Aug 15, am. Post by sideshow » Sat Aug 16, pm. Post by Piledriver » Sun Aug 17, am. Post by rcb78 » Sun Aug 17, pm. Privacy Terms. Donate to STF. Who is the best person to rebuild your engine? Sims sometimes cites.

Quick links. When magnesium cases are no longer available I will no longer build engines. Privacy Terms.

View original topic: New case quality, aluminum vs mag. Page: 1 , 2 Next. I ordered a new aluminum super case several weeks ago, and it appears the vendor is having issues getting one. I can't get clear answers as to : is this still an issue? Is the quality worth waiting for?

Login to Your Account. Remember Me? Results 1 to 12 of Thread: Aluminum vs Magnesium Gearbox. Thread Tools Show Printable Version. Is there any consensus that the aluminum case is a worthwhile upgrade over the mag case, or am I just spending money? Stan Clayton Stohr Cars. If the Mag case is up to the task, why wouldn't it be a better option over the aluminum?

Aluminum vs magnesium vw engine case

About Help! All Rights Reserved. Not affiliated with or sponsored by Volkswagen of America Forum powered by phpBB Links to eBay or other vendor sites may be affiliate links where the site receives compensation. See all banner ads Advertise on TheSamba. New case quality, aluminum vs mag. Page: 1 , 2 Next. Print View. Quick sort: Show newest posts on top Show oldest posts on top.

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Fair enough? Last edited by Schaefer Ralf on Thu May 25, am, edited 1 time in total. Very light weight. Also, whereas the surface of aluminum oxidizes very quickly to form alumina, which greatly retards the rate of oxidation for the remaining aluminum, magnesium oxidizes to form magnesium oxide, which comes off in a manner similar to iron rust, leaving the remaining metal open to oxidation as well. Well said, all of them are aftermarket cases. I use aluminum cases where overall strength is needed, and magnesium where low power and light weight are the right combo. We do use counterweighted cranks and balanced assemblies, but truth be known we run 8k if we must, and not just for 14 seconds. Skip to content. Crank spun free and true on mock up,, journals were all sized correctly and round, what else could I do? I hevent personaly seen a "real" issues with any of the aluminum cases. Privacy Terms. It's strength is lower in every way. I wont buy another mag case.

View original topic: New case quality, aluminum vs mag. Page: 1 , 2 Next.

I have 2 magnesium and 6 Aluminum cases left in my inventory and when the magnesium one are gone I will only use Aluminum, I have run into a lot of Quality issues in the last few years with the magnesium cases. Very light weight. All the process does is like an acid etch chromatic coating couple of microns on the outer surface. Post by rcb78 » Sun Aug 17, pm Initially it needed a line bore and the lifter bores sleeved. All I hear is "talk" about an aluminum case. Nachi,Porsche also used finned iron cylinders as well as aluminum cast over iron sleeves and an all aluminum cylinder with hard chrome plating. Post by sideshow » Fri Aug 15, am. Please correct me if I am wrong, I am always willing to learn. A mag case treated this way would have bearing saddle ridges by this time. What are their cases made of? This is what VW originally used back in the s on their magnesium engine and transmission cases. Post by raygreenwood » Mon Aug 11, pm. Most people never stop to see what their transmission heat gets up to on a long highway haul. Post by rcb78 » Fri Aug 15, am Dunno, don't care.