The Cal-look Lounge
Welcome, Guest. Please login or register.
Did you miss your activation email?
November 25, 2024, 12:00:39 pm

Login with username, password and session length
Thank you for your support!
Search:     Advanced search
351219 Posts in 28657 Topics by 6854 Members
Latest Member: 74meanmachine
* Home This Year's European Top 20 lists All Time European Top 20 lists Search Login Register
+  The Cal-look Lounge
|-+  Cal-look/High Performance
| |-+  Pure racing
| | |-+  Two Cylinders, One Casting		 « previous next »
Pages: [1] Print
Author Topic: Two Cylinders, One Casting  (Read 4664 times)
Steve DKK
DKK
Jr. Member
**
Posts: 92
« on: August 27, 2009, 16:25:51 pm »
I have a hair brained idea to manufacture a single casting that would house both cylinders for a type one.

Trying to get away from long springy head studs.  Has this been tried?

One pattern holding the cylinger to case another pattern bolting the head to the cylinder. 
Increasing torque, bolt size, number of bolts and reducing the bolt length seems to be a huge advantage?

Thoughts?
Logged
Go fast, don't turn
louisb
Hero Member
*****
Posts: 3274


Runs with Scissors
« Reply #1 on: August 27, 2009, 16:54:33 pm »
I think Pauter has done this before. I know I have seen it some where. Maybe in Keith S. interchange manual.

--louis
Logged
Louis Brooks

The Beatings Will Continue Until Moral Improves!
jamiep_jamiep
Hero Member
*****
Posts: 1587
« Reply #2 on: August 28, 2009, 08:59:32 am »
Sounds overly complex to me.... but???

I think ARPM also did some.

I think if the guys running quick times with lots of boost on here can get away with it I would be surprised if there was a need for a set of bolts for the cylinders and a set for the heads, but I'm in the KISS camp (keep it simple stoopid) of engineering so who knows.
Logged
Happiness is a Hot VW.

My 1960 Bug

SAS RENN-WAGENS

CAL LOOK DRAG DAY
Griebel
Full Member
***
Posts: 199


WWW
« Reply #3 on: August 28, 2009, 13:49:57 pm »
ARPM...
Logged
Instagram: c.griebel
http://www.griebel.blogspot.com
       "BEYOND 4 INCHES"
          MIB,DENMARK
Roman
Hero Member
*****
Posts: 656
« Reply #4 on: August 28, 2009, 19:53:23 pm »
It is called Siamese cylinders.
« Last Edit: August 29, 2009, 08:46:28 am by Roman » Logged
Rick Meredith
DKK
Hero Member
*****
Posts: 5312


We can't force ya to have fun
« Reply #5 on: August 28, 2009, 19:54:15 pm »
Quote from: Roman on August 28, 2009, 19:53:23 pm
It is called Siemese cylinders.

Siamese  Wink
Logged
67 Beetle - The Deuce Roadster of Cal Look
Roman
Hero Member
*****
Posts: 656
« Reply #6 on: August 29, 2009, 08:46:51 am »
Yes, it was a typo..
Logged
Steve DKK
DKK
Jr. Member
**
Posts: 92
« Reply #7 on: August 30, 2009, 17:43:30 pm »
Agree this not a mass market item.
But in understand the cylinder to head seal is still a problem when cranking the boost up.
Logged
Go fast, don't turn
Bruce
Hero Member
*****
Posts: 1420
« Reply #8 on: August 30, 2009, 19:37:07 pm »
Quote from: Steve DKK on August 27, 2009, 16:25:51 pm
Trying to get away from long springy head studs. 
Presumably you were looking at M10 studs.  If you thought they were weak or stretchy, have you thought about 7/16" studs?  M12?
Logged
Martin
Hero Member
*****
Posts: 810


Cash Converter....


WWW
« Reply #9 on: August 30, 2009, 22:11:10 pm »
never had any issues with mine leaking under boost.
Logged
Martin

9 sec street car, its just simply not fast enough

Swing axle to CV convertion is on the website now

www.taylormachine.co.uk

OFF/500
Steve DKK
DKK
Jr. Member
**
Posts: 92
« Reply #10 on: August 31, 2009, 00:52:06 am »
Hector Urias is a good friend and he had a leaker at Sacramento last month and torched a head.  Had to scramble to get it welded and machined to run the next day.

7/16...   Yea bigger is sometimes better but anying additional stress to the case scares me.  assuming using a larger diameter stud would allow additional torque.

Were there problems with the siamese cylinders? 
Logged
Go fast, don't turn
Jon
Administrator
Hero Member
*****
Posts: 3214


12,3@174km/t at Gardermoen 2008


WWW
« Reply #11 on: September 01, 2009, 10:02:29 am »
The stress on the case would be the same, but more bolts will spread the forces more evenly.
Logged
Grumpy old men have signatures like this.
Steve DKK
DKK
Jr. Member
**
Posts: 92
« Reply #12 on: September 10, 2009, 12:23:21 pm »
Agree, My thought was using the std head bolts to attach the cylinders to the case but shorter larger bolts to attach the head to the cylinder.  Allowing for more bolt torque and the use of a real head gasket not just a copper washer. 
Logged
Go fast, don't turn
Pages: [1] Print 
« previous next »
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.21 | SMF © 2015, Simple Machines Valid XHTML 1.0! Valid CSS!