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jason Samba Member
Joined: August 07, 2002 Posts: 3443 Location: Garage
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Posted: Tue Nov 25, 2014 7:14 pm Post subject: CB or Scat cranks |
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I am starting to collect parts for a bus motor. I was thinking of building a 2110. I have been looking at cranks and was wondering if the Scat cranks with the type IV center main are any good or the CB units? Scat with bigger center area and full circle oil grooves or the plain CB. I'm thinking because it's a bus the bigger center main would be better. Any thoughts, overkill. Any other good cranks out there? |
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jfats808 Samba Member
Joined: December 10, 2007 Posts: 5022 Location: oahu hawaii
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Posted: Tue Nov 25, 2014 7:23 pm Post subject: |
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Type 4 mains are for racing and is overkill unless u got it free for street applications. I mainly use Scat forged 4340 and dpr cranks for my personal builds. Cb is a good quality crank also and many members on the site use it flawlessly. Bugpack cranks are also awesome. _________________ 2276 IDA's 86C 11-1 DD !
2017 48 Trijet DRLA's W125
Rockstar Suzuki wrote: |
You might as well put 10 year build in your bullshit sig, as it will NEVER run. Also your a dick |
You can always learn something new, even from a fool.
Check your oil levels routinely! |
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Danwvw Samba Member
Joined: July 31, 2012 Posts: 8892 Location: Oregon Coast
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Posted: Tue Nov 25, 2014 7:47 pm Post subject: |
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I built my last engine using a CB-Counterweighted 74mm 4340 standard bearing crankshaft, It was a very nice looking crank and required almost not balancing!
I am building a spare engine now with a old Scat 74mm crank, Not sure what it is, has an "S" on it and has the mains grooved, has standard bearings though. Got it used! But the Machine Guy said he had a hard time getting it to balance! He had to take quite a bit off one of the counterweights weights. _________________ 1960 Beetle And 1679cc DP W-100 & Dual Zeniths! |
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bugguy1967 Samba Member
Joined: January 16, 2008 Posts: 4338 Location: Los Angeles, CA 90016
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Posted: Tue Nov 25, 2014 8:39 pm Post subject: |
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I've used both, and the SCATs appear to be much stronger and have a better finish. They both spec'd out perfect though. I'd go with a SCAT. _________________ "A petrol engine can start readily, run smoothly and give every appearance of being in good order, without necessarily being in good tune." - Colin Campbell, "The Sportscar Engine" |
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mark tucker Samba Member
Joined: April 08, 2009 Posts: 23937 Location: SHALIMAR ,FLORIDA
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Posted: Tue Nov 25, 2014 9:08 pm Post subject: |
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I think I have both scat&cb,no reliabillity issues with either. |
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Howard 111 Samba Member
Joined: July 09, 2005 Posts: 1827 Location: Virginia
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Posted: Tue Nov 25, 2014 10:33 pm Post subject: |
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I went all Berg for my long block, but went CB on my turbo/FI setup. They are a good company. Pat Downs is a great person who knows his stuff. _________________ 1973 Karmann Ghia
Turbocharged, Fuel Injected
http://www.thesamba.com/vw/forum/viewtopic.php?t=531270 |
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vugbug68 Samba Member
Joined: June 25, 2006 Posts: 2696 Location: sacramento
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Posted: Wed Nov 26, 2014 10:40 am Post subject: |
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I believe Scat started out making cranks, they make V8 cranks too, They are more expensive than CB but probably better quality. I have a forged CB 76mm with about 30k on it, when I was building the 76x94 I inspected the crank and it was perfect. _________________ 71 Super - Backroad Thrasher
66 Corvair - Weekend Cruiser
90 4 Runner - Muddin |
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mark tucker Samba Member
Joined: April 08, 2009 Posts: 23937 Location: SHALIMAR ,FLORIDA
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Posted: Wed Nov 26, 2014 1:34 pm Post subject: |
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I have over 100000 on my std scat stroker crank.about 40000 on my cb when I pulled it appart for roller cam conversion,It still looks great to me.both are great quality peices. |
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Busstom Samba Member
Joined: November 23, 2014 Posts: 3789 Location: San Jose, CA
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Posted: Wed Nov 26, 2014 11:05 pm Post subject: |
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Interesting! I'm also building a 2110 for my Bus, based on a CB crank and CB aluminum case.
I'm curious to hear more about your combo! |
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jason Samba Member
Joined: August 07, 2002 Posts: 3443 Location: Garage
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Posted: Thu Nov 27, 2014 10:00 am Post subject: |
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As of now I have a new as41 case. I also have a Berg 86 crank, flywheel and Carillo rods. I was saving the crank for my Ghia motor build but life got in the way and Ghia had to go. I don't know if I can stuff that in an early bus compartment without modifying more things so I was thinking about buying a new crank. I have a 2017 that I finished for my bug that I was thinking to put in the bus and use the crank for the beetle. Maybe I can use squishy Pistons on that motor, I heard they are as narrow as a 1500. I feel like I have A.D.D., I'm all over the place. I don't think the 2017 will have much bottom end. It has an fk8 cam,1/4's, Tims stage 2 with 42's, 9.7 if I remember right and IDA's. I drive the bus more than the beetle so I want it a bit more friendly. |
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jfats808 Samba Member
Joined: December 10, 2007 Posts: 5022 Location: oahu hawaii
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Posted: Thu Nov 27, 2014 10:45 am Post subject: |
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I dont see why your 2017 isnt going to rip. It should have gobs of low end with the k8.
You dont have the ghia so the plans for the berg cranks goes out the window. Theres no reason you couldnt build with it and say 90.5s. And be tame for driving. In fact, id build it with a k8 on the bus. That is a very good street cam. I kinda miss it tbh in my ride. I dont buy into the hype of 90.5 or 92 thickwalls. Id go 94s. There are options for thickwall 94s now! Alternative is sell the berg crank for an 82. Buses have a lot of room. Not like a big. But I wouldnt. Just a suggestion. _________________ 2276 IDA's 86C 11-1 DD !
2017 48 Trijet DRLA's W125
Rockstar Suzuki wrote: |
You might as well put 10 year build in your bullshit sig, as it will NEVER run. Also your a dick |
You can always learn something new, even from a fool.
Check your oil levels routinely! |
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Busstom Samba Member
Joined: November 23, 2014 Posts: 3789 Location: San Jose, CA
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Posted: Fri Nov 28, 2014 12:14 am Post subject: |
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Copy that.....I think the A.D.D. thing runs in this crowd!
Is there anything keeping you from slipping the 2017 into your Bus to prove it out? Or is it already in the Bug, which would then leave you without transpo once you pull it out? |
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rammintwins Samba Member
Joined: September 30, 2011 Posts: 124 Location: carson,ca
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Posted: Sat Nov 29, 2014 10:39 am Post subject: |
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in a bus i would use a dpr crank with 90.5's |
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[email protected] Samba Member
Joined: May 17, 2003 Posts: 4863 Location: Harmony, PA
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Posted: Sat Nov 29, 2014 12:15 pm Post subject: |
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Scat's Forged Cranks are comparable to CB's in quality/price. To get one of Scat's Cranks with the Type 4, you need to step up to their Billet Cranks which are $1100+. Not worth spending the extra $700-$800 for what you are using it for. I personally would use an Empi Crank, but I'd go with the CB Crank if you were choosing between Scat/CB. |
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Dauz Samba Member
Joined: January 05, 2010 Posts: 1790
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Posted: Sat Nov 29, 2014 2:12 pm Post subject: |
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Alot of the mentioned distributors get their forged counterweighted cranks from the same Chinese dude. He slangs them on a Beijing street corner next to the deep fried chicken uterus stand.
I know Scat, DRD, and Bugpacks' flanged cranks are made in the US. DPR and DMS produce welded counterweight cranks utilizing a German core. |
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jason Samba Member
Joined: August 07, 2002 Posts: 3443 Location: Garage
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Posted: Sat Nov 29, 2014 6:40 pm Post subject: |
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I think I'm going to put the 2017 in the bus and build a different one for the bug. The bug isn't ready to drive yet anyway. This way I can use my Berg crank. |
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jfats808 Samba Member
Joined: December 10, 2007 Posts: 5022 Location: oahu hawaii
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Posted: Sat Nov 29, 2014 9:40 pm Post subject: |
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jason wrote: |
I think I'm going to put the 2017 in the bus and build a different one for the bug. The bug isn't ready to drive yet anyway. This way I can use my Berg crank. |
Splendid idea. _________________ 2276 IDA's 86C 11-1 DD !
2017 48 Trijet DRLA's W125
Rockstar Suzuki wrote: |
You might as well put 10 year build in your bullshit sig, as it will NEVER run. Also your a dick |
You can always learn something new, even from a fool.
Check your oil levels routinely! |
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