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PostPosted: Wed Oct 08, 2014 6:06 pm 
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I know a aluminum case would probably be easier to build a 2500 with because of more meat for clearencing but how many of you have used a stock mag case,and what issues did you have,if any?


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PostPosted: Wed Oct 08, 2014 7:08 pm 
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Any bigger than 2332 i would use aluminum case . Saw the headaches firsthand with a 2387.clearancing leaves very little tolerance and im not an engine builder.just my 2ยข

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PostPosted: Wed Oct 08, 2014 7:42 pm 
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I used a CB performance Mag case on my last 2232 build and I really liked it.

Here is an interesting article... It looks like they are going to stop making the magnesium cases.
http://www.hotvws.com/news2.php?contentID=74

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PostPosted: Thu Oct 09, 2014 12:21 pm 
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Aluminum cases are much stronger. I used to beat the thrust out of my race motor 3-4 times a year!! Built one with a alum block, problem solved.

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PostPosted: Thu Oct 09, 2014 2:25 pm 
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One burns better than the other!!!


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PostPosted: Thu Oct 09, 2014 2:44 pm 
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Have used both for years.
Mag is injection molded, aluminum is sand cast.
For bigger engines past 84 stroke I like the pent roofed CB or Bugpack cases.
They are available with a raised deck, eliminating the need for big spacers.

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PostPosted: Thu Oct 09, 2014 7:44 pm 
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I have built em both ways ..Your gonna wantta go Alum , with a 90 mm crank if that's what your plan is..88 crank with 95mm piston works nice to .And a little less rod angle with the 88 so you a lot less wear and tear on piston and jugs ...just my opinion tho ..Really don't no much about the stuff :wink:

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PostPosted: Thu Oct 09, 2014 8:19 pm 
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The case that the crank came out of,had quite a bit of JB weld and cracked from where the two halves meet to the end of where it was clearenced. I know many have had this combo and not had any problems but i think ill pass on a mag case. $900 is just a kick in the balls for a new case.


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PostPosted: Thu Oct 09, 2014 8:23 pm 
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darrell wrote:
I have built em both ways ..Your gonna wantta go Alum , with a 90 mm crank if that's what your plan is..88 crank with 95mm piston works nice to .And a little less rod angle with the 88 so you a lot less wear and tear on piston and jugs ...just my opinion tho ..Really don't no much about the stuff :wink:


No you wouldn't know anything about air cooled your a water cooled guy now


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PostPosted: Thu Oct 09, 2014 8:34 pm 
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Exactly. Make a Passat buggy. And $ave. lol. V6, fwd trans, Lincoln aluminium IRS diff, 4 930 joints= $900.


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PostPosted: Thu Oct 09, 2014 8:39 pm 
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2800passat wrote:
Exactly. Make a Passat buggy. And $ave. lol. V6, fwd trans, Lincoln aluminium IRS diff, 4 930 joints= $900.


Man don't go all Sanford and son on us Passat. We don't all have a platinum membership at pull apart


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PostPosted: Fri Oct 10, 2014 10:11 am 
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Im still old school but it is amazing how much it cost to build a vw thses days. If i didnt have a 16 rib ,id build a smaller motor.


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PostPosted: Fri Oct 10, 2014 8:15 pm 
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RaceBugg1098 wrote:
Aluminum cases are much stronger. I used to beat the thrust out of my race motor 3-4 times a year!! Built one with a alum block, problem solved.

x2


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