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FeelthySanchez
Samba Member
Joined: February 03, 2011
Posts: 1349
Location: Now is that a real poncho, or a Sears poncho?
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 Posted: Sat Apr 16, 2016 6:22 pm Post subject: Re: Crank Value (NOW WITH PICS) |
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Good question:
| sled wrote: |
| just from the photos, how can one guess whether it is cast or forged? |
From visuals alone: It lacks the telltale wide "parting line" native to any forging.
_________________
| modok wrote: |
| I would like if you had enough clue to communicate what you are doing. |
| Ryan Tucker wrote: |
| Enough clue..Whats that mean? |
| OldIronSpine wrote: |
I'm not sure how compression works.
Turbos don't produce torque, they produce HP. Instead of torque.
The real problem with NA engines is you don't hear the nice whine of the turbo as it spools up.
Before I commit, I'm going to do more research because I don't really know what piston rings are. |
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bugguy1967
Samba Member
Joined: January 16, 2008
Posts: 4341
Location: Los Angeles, CA 90016
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| Posted: Sat Apr 16, 2016 8:09 pm Post subject: Re: Crank Value (NOW WITH PICS) |
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Drumbum, yes they do, and in a few configurations.
Multi69s, they are listed for $200s as a set, but their worth can be argued. Porsche guys think they're gold, but the fact is there are tons out there. I have two sets that I bought for $50 each. I got the rods completely reconditioned for $35 a set |
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dsrtfox
Samba Member
Joined: August 25, 2009
Posts: 443
Location: Phoenix
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| Posted: Sat Apr 16, 2016 9:03 pm Post subject: Re: Crank Value (NOW WITH PICS) |
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| You say the rods are 356A which I take to mean 56 thru 59. If that is so the rods are junk. The Porsche guys use the latest rods, the part # ends with 101. The early ones are not near as strong. The 101's came in late C/SC and 912... |
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sled
Samba Member
Joined: February 16, 2005
Posts: 6179
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| Posted: Sat Apr 16, 2016 9:56 pm Post subject: Re: Crank Value (NOW WITH PICS) |
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| FeelthySanchez wrote: |
From visuals alone: It lacks the telltale wide "parting line" native to any forging. |
right, but I don't see any pictures with detail of the parting line? and do we have a specific width range of a 'wide' parting line?
_________________
drive your split. |
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modok
Samba Member
Joined: October 30, 2009
Posts: 26779
Location: Colorado Springs
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| Posted: Sun Apr 17, 2016 12:15 am Post subject: Re: Crank Value (NOW WITH PICS) |
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There were some scat cranks that were fully machined in most areas, leaving no evidence of how they were made, and the alloy was such that you could not really tell if it was iron or steel from the looks of the toolmarks. I don't know myself HOW these were made but since they hold up well I suppose it doesn't really matter, proof is in the pudding.
bad news is, this doesn't appear to be one of them. |
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FeelthySanchez
Samba Member
Joined: February 03, 2011
Posts: 1349
Location: Now is that a real poncho, or a Sears poncho?
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| Posted: Sun Apr 17, 2016 6:02 am Post subject: Re: Crank Value (NOW WITH PICS) |
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Sled,
Have never seen any figures for 'width range' of parting lines.
Note Multi's pics 1 & 2. Photoshopping shows no wide/forge parting line & enough detail to peg it as a "not fully machined" cast example.
As Glen notes - if fully machined it requires an experienced eye, 'ringing' or as a last resort, metallurgy to determine.
Not the best pix here, but the 5th & 7th images show it pretty well - upon a cross-drilled OG crank w/ added C/W:
http://www.thesamba.com/vw/classifieds/detail.php?id=1061509
| sled wrote: |
| FeelthySanchez wrote: |
From visuals alone: It lacks the telltale wide "parting line" native to any forging. |
right, but I don't see any pictures with detail of the parting line? and do we have a specific width range of a 'wide' parting line? |
_________________
| modok wrote: |
| I would like if you had enough clue to communicate what you are doing. |
| Ryan Tucker wrote: |
| Enough clue..Whats that mean? |
| OldIronSpine wrote: |
I'm not sure how compression works.
Turbos don't produce torque, they produce HP. Instead of torque.
The real problem with NA engines is you don't hear the nice whine of the turbo as it spools up.
Before I commit, I'm going to do more research because I don't really know what piston rings are. |
Last edited by FeelthySanchez on Sun Apr 17, 2016 9:12 am; edited 5 times in total |
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drumbum68
Samba Member
Joined: October 15, 2010
Posts: 566
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| Posted: Sun Apr 17, 2016 6:48 am Post subject: Re: Crank Value (NOW WITH PICS) |
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| bugguy1967 wrote: |
Drumbum, yes they do, and in a few configurations.
Multi69s, they are listed for $200s as a set, but their worth can be argued. Porsche guys think they're gold, but the fact is there are tons out there. I have two sets that I bought for $50 each. I got the rods completely reconditioned for $35 a set |
Yeah, don't think they offer a 84mm cast crank, currently. |
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Multi69s
Samba Member
Joined: January 24, 2006
Posts: 5363
Location: Lefty, CA
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