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Bub Samba Member
Joined: June 10, 2004 Posts: 1155 Location: Central Washington
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Posted: Tue Sep 27, 2022 10:20 am Post subject: Re: What about 1602 74x83mm 40 hp? |
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Busted-bolt wrote: |
I guess this belongs here . My 1602 . It's almost done ! Lol
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Is that CIS on a 40hp? What is that all about?
What did that turbo come from? A key chain?
Holy SH*T I bet that will absolutely rip. _________________
hitest wrote: |
Had a girlfriend once who shall we say, nearly arrived at the mere sight of a semaphore in action- easy to please she was... |
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Alstrup Samba Member
Joined: July 12, 2007 Posts: 7221 Location: Videbaek Denmark
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Posted: Tue Sep 27, 2022 10:25 am Post subject: Re: What about 1602 74x83mm 40 hp? |
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I donīt see the point, - except for the "challenge" If you go 69 or 74 stroke even with the stock 1200 rods and pistons, the stock 1200 tin doesnt fit anyway. If you go with 1300 sgl port heads, the tin needs to be altered too. 13/1500 tin is easily adaptable of course.
There are H beam rods on the market already which fits the 1200 "40" hp crank, for those who absolutely want that. _________________ https://www.thesamba.com/vw/forum/viewtopic.php?t=435993 |
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Busted-bolt Samba Member
Joined: April 14, 2018 Posts: 514 Location: minnesoota
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Posted: Tue Sep 27, 2022 1:22 pm Post subject: Re: What about 1602 74x83mm 40 hp? |
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The big bore 83 mm piston's were modified to be semi hemi just like the heads . I did use a .075" shim for the barrels to get my desired compression ratio . _________________ Vw collection 60 combi ,61 panel ,62 deluxe micro,82 diesel Westfalia,88 Vanagon synchro,98 Jetta tdi,11 Jetta tdi mt ,11 Jetta tdi dsg.
I do all my own work,body,engine and transmission. |
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Busted-bolt Samba Member
Joined: April 14, 2018 Posts: 514 Location: minnesoota
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Posted: Tue Sep 27, 2022 4:17 pm Post subject: Re: What about 1602 74x83mm 40 hp? |
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You can be rest assured I'm using the 40 Hp upper tin when I'm stale air all the way ! 🙃 _________________ Vw collection 60 combi ,61 panel ,62 deluxe micro,82 diesel Westfalia,88 Vanagon synchro,98 Jetta tdi,11 Jetta tdi mt ,11 Jetta tdi dsg.
I do all my own work,body,engine and transmission. |
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henry roberts Samba Member
Joined: February 24, 2003 Posts: 1276 Location: australia
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Posted: Wed Sep 28, 2022 2:46 am Post subject: Re: What about 1602 74x83mm 40 hp? |
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Is that twin turbo?!?
So Frankenstein and so much custom fabrication! I love it! |
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earthquake Samba Member
Joined: January 10, 2008 Posts: 3984 Location: SANDY VALLEY, NEVADA
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Posted: Thu Sep 29, 2022 9:54 am Post subject: Re: What about 1602 74x83mm 40 hp? |
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I thought when you built a 1602 on a 40hp you used 36hp rods that are profiled machined on the big end of the rod so it would work on the 1600 based crank, this way you would still have 20mm pin bores to fit the 83mm BB pistons.
eQ _________________ 74 CLASS 11 LOOK-A-LIKE
69 DUNE BUGGY
79 INTERNATIONAL SCOUT II
05 SCION XB SERIES RELEASE 2[#437]
95 Chevy C3500 dually
98 Ford E150
Link to Kelly J. Nolte 3/20/53 - 11/6/08
https://time-zonelabs.blogspot.com/p/about-kelly.html
DEATH TO CHINGERS!
[From a military recruitment poster in the novel "The Stainless Steel Rat" By Harry Harrison] |
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Busted-bolt Samba Member
Joined: April 14, 2018 Posts: 514 Location: minnesoota
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Posted: Thu Oct 06, 2022 9:13 am Post subject: Re: What about 1602 74x83mm 40 hp? |
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I used 40 hp rods that had about .020" milled from each side of the big end . The stock 40 hp cylinder holes on the block and cylinder heads remain stock size as a factory 40 hp . I just have a set of slip in 40 hp big bore jugs in there as well . I need to find those copper stale air rings for the cylinder head to barrel seal . The aftermarket ones are junk because they are to hard and will not allow the cylinder to seat in the head correctly . When all of the mock-up is done on the prototype parts the top end will be removed , cleaned thoroughly , reassembled and adjusted . I just need to source some O-G stale air 40 hp head to cylinder rings ! 👍 _________________ Vw collection 60 combi ,61 panel ,62 deluxe micro,82 diesel Westfalia,88 Vanagon synchro,98 Jetta tdi,11 Jetta tdi mt ,11 Jetta tdi dsg.
I do all my own work,body,engine and transmission. |
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earthquake Samba Member
Joined: January 10, 2008 Posts: 3984 Location: SANDY VALLEY, NEVADA
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Posted: Fri Oct 07, 2022 5:26 pm Post subject: Re: What about 1602 74x83mm 40 hp? |
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If the sealing rings are solid copper heat them with a torch until they are a dull red to anneal them, then they should work.
eQ _________________ 74 CLASS 11 LOOK-A-LIKE
69 DUNE BUGGY
79 INTERNATIONAL SCOUT II
05 SCION XB SERIES RELEASE 2[#437]
95 Chevy C3500 dually
98 Ford E150
Link to Kelly J. Nolte 3/20/53 - 11/6/08
https://time-zonelabs.blogspot.com/p/about-kelly.html
DEATH TO CHINGERS!
[From a military recruitment poster in the novel "The Stainless Steel Rat" By Harry Harrison] |
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thomas. Samba Member
Joined: July 31, 2010 Posts: 1291 Location: South West (Pa.)
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Posted: Sun Oct 23, 2022 6:32 pm Post subject: Re: What about 1602 74x83mm 40 hp? |
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I used the copper rings from a new box of good quality gaskits from WW in my 40hp 1385 bb.I didn't have any trouble with sealing & I use the stale air heater boxes with no smell or emissions. I switched the heads to the late '65 40hp heads.
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