Aluminum vs magnesium vw engine case

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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.

Aluminum vs magnesium vw engine case

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? Are they still sand cast? Your opinions? Would you just go to a magnesium super case at this point, or wait for the aluminum to become available? My case cracked and leaks oil under pressure, so I'm worried hearing these "poor quality" rumors! A bad case this time around will probably get me shot by my wife! I have an autolina case and love it! I have no issues with mine at all. My understanding is the newer castings in the last few years, took care of the issues most were complaining about years ago.

It did what it was intended to do. Is there anybody out there with experiance in magnesium case treatment?

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.

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? Are they still sand cast? Your opinions?

Aluminum vs magnesium vw engine case

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Post by Scott Novak » Thu Aug 14, pm Why are the aluminum cases running hotter than the magnesium alloy cases? Cheers, -Greg. I forget which, but some guys on the NG mentioned it. Yes, it is minimally lighter than aluminum, but it's constantly trying to return to its original form. Its the nature of the metal. The outer walls because of their compression by the die and "compaction" of grain Aftermarket Type 1 cases made from aluminum do exist, but they are expensive and are designed for race only ie: no provisions exist for mounting engine tin, a thermostat, etc. Sacrificial coating? When magnesium cases are no longer available I will no longer build engines. At the extreme, it softens and because of slight variations that can happen in the alloy mix throughout the left and right case halves material, distorts. I did get a few from Mexico that were pretty good but the supply was short. The center main number 2 is not going to be pounded out after freeway trips to BOR 1k weekends interstate 5 fully laden are not uncommon.

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Yes, it is minimally lighter than aluminum, but it's constantly trying to return to its original form. Sand casting is not a mag versus aluminum issue. A sand cast case will not be as strong as a die cast case The original VW case suffers all of the same issues as a straight mag case Nothing moves. But it still galls me to add weight to the wrong end of the car And, aluminum cases are considerably heavier. It did what it was intended to do. Now you can run any T1 cam you like in that WBX case. After spending some time in the v-blocks about the only thing I didn't do he finds that that the mains have been indexed wrong and between 1 and 3, the axial line of the crank is twisted about. It's built like a bank vault. I can't get clear answers as to : is this still an issue? Sort of a "concept" ice-breaker, like a cartoon as a lead-in to an article. Post by Scott Novak » Thu Aug 14, pm Why are the aluminum cases running hotter than the magnesium alloy cases? Please correct me if I am wrong, I am always willing to learn.