Hello! Log in or Register   |  Help  |  Donate  |  Buy Shirts See all banner ads | Advertise on TheSamba.com  
TheSamba.com
 
My Express engine
Page: Previous  1, 2, 3, 4  Next
Forum Index -> Vintage Speed Share: Facebook Twitter
Reply to topic
Print View
Quick sort: Show newest posts on top | Show oldest posts on top View previous topic :: View next topic  
Author Message
marcnr1
Samba Member


Joined: April 05, 2004
Posts: 17
Location: netherlands
marcnr1 is offline 

PostPosted: Sat Apr 17, 2010 4:47 am    Post subject: Reply with quote

marcnr1 wrote:
Peter_Plade wrote:
The first run on the dyno was 44hp, after cahnging the venturies it was 46hp. And then we gawe it a litttle more timing.
But I´m happy Smile never thought I would get over 50hp with it.


At what rpm did you het that horsepower?
=51hp@4100rpm

Sorry, I had to watch the movie before I did that last post!
Back to top
View user's profile Send private message Visit poster's website Gallery Classifieds Feedback
Peter_Plade
Samba Member


Joined: January 09, 2005
Posts: 551
Location: Denmark
Peter_Plade is offline 

PostPosted: Tue Oct 30, 2012 1:30 am    Post subject: Reply with quote

Well this was what happend this summer, after almost 30.000km with the Express motor the crank gave up.
The most crazy thing was that I actually was able to limp it the last 15km home with the broken crank.

The motor is now torn down and new plans have been made.
This time I´m putting in a 72mm stroker crank, this should make it a 1341cc, kind of exited to see how this will work out.

Image may have been reduced in size. Click image to view fullscreen.

_________________
http://vw-bluehats.blogspot.com/
Back to top
View user's profile Send private message Gallery Classifieds Feedback
John Moxon Premium Member
Samba Moderator


Joined: March 07, 2004
Posts: 13943
Location: Southampton U.K.
John Moxon is online now 

PostPosted: Tue Oct 30, 2012 1:59 am    Post subject: Reply with quote

How many is that now Peter?...I seem to remember you broke another one before. Wink
_________________
John.
Judson Supercharger Information on The Samba
My 1958 Shorrock Supercharged Karmann Ghia
Stop dead photo links! Post your photos to The Samba Gallery!
Back to top
View user's profile Send private message Send e-mail Visit poster's website Gallery Classifieds Feedback
Peter_Plade
Samba Member


Joined: January 09, 2005
Posts: 551
Location: Denmark
Peter_Plade is offline 

PostPosted: Tue Oct 30, 2012 2:19 am    Post subject: Reply with quote

John Moxon wrote:
How many is that now Peter?...I seem to remember you broke another one before. Wink


You have a good memory John Very Happy
It´s true I also broke one back when I was running my Judson.

Apparently I rev my motors to high, I just can´t control myself Rolling Eyes
_________________
http://vw-bluehats.blogspot.com/
Back to top
View user's profile Send private message Gallery Classifieds Feedback
J
Samba Member


Joined: September 15, 2007
Posts: 126
Location: Sus&Wis-town,BelGIam
J is offline 

PostPosted: Sat Nov 03, 2012 2:48 am    Post subject: Reply with quote

Join the club-)
mine broke after 12000km.
Image may have been reduced in size. Click image to view fullscreen.

_________________
http://www.oldtimeroldspeedclub.org/
Back to top
View user's profile Send private message Gallery Classifieds Feedback
grueni
Samba Member


Joined: November 03, 2008
Posts: 582
Location: Germany
grueni is offline 

PostPosted: Sat Nov 03, 2012 2:59 am    Post subject: Reply with quote

they allways brake at the same point Wink
damn.
_________________
1960 1584cc turbocharged, 35,5/32 (11,117s 1/4mile )
Back to top
View user's profile Send private message Gallery Classifieds Feedback
Peter_Plade
Samba Member


Joined: January 09, 2005
Posts: 551
Location: Denmark
Peter_Plade is offline 

PostPosted: Wed Nov 07, 2012 12:09 am    Post subject: Reply with quote

They can also brake in the other end Shocked
This is the one that broke when I was running my Judson motor.
Image may have been reduced in size. Click image to view fullscreen.

_________________
http://vw-bluehats.blogspot.com/
Back to top
View user's profile Send private message Gallery Classifieds Feedback
grueni
Samba Member


Joined: November 03, 2008
Posts: 582
Location: Germany
grueni is offline 

PostPosted: Wed Nov 07, 2012 2:55 am    Post subject: Reply with quote

autsch...than i had luck with my supercharged engine.
but on the medusa engine i let the crank checked alot. maybe because they are so old? so allways better to use a porsche 356 one Wink
_________________
1960 1584cc turbocharged, 35,5/32 (11,117s 1/4mile )
Back to top
View user's profile Send private message Gallery Classifieds Feedback
mightymouse
Samba Member


Joined: May 26, 2004
Posts: 4220
Location: las vegas
mightymouse is offline 

PostPosted: Thu Nov 08, 2012 3:26 pm    Post subject: Reply with quote

Thats due to no counterweights and no weight on the nose of the crank.
They flex in the middle and thusly break in that same spot at either end. More likely to be the flywheel end because of the flywheel weighing more and contributing more to the flex.
Add counterweights and heavier pulley or harmonic damper.
Problems will cease.
_________________
Nothing can stop the man with the right mental attitude from achieving his goal; nothing on earth can help the man with the wrong mental attitude.
Thomas Jefferson


Note to EVERYONE.
Know your ZDDP levels or you WILL lose a cam and lifters.
Back to top
View user's profile Send private message Send e-mail AIM Address Yahoo Messenger Gallery Classifieds Feedback
gimmesomeshelter
Samba Member


Joined: May 08, 2004
Posts: 1468
Location: San Carlos, CA
gimmesomeshelter is offline 

PostPosted: Thu Nov 08, 2012 3:52 pm    Post subject: Reply with quote

Shocked
_________________
"I would rather have questions that can't be answered than answers that can't be questioned."

Richard Feynman
Back to top
View user's profile Send private message Gallery Classifieds Feedback
Mr. Motorhead
Mad Scientist


Joined: January 06, 2004
Posts: 717
Location: Practitioner of 36hp alchemy
Mr. Motorhead is offline 

PostPosted: Thu Nov 08, 2012 5:14 pm    Post subject: Reply with quote

Peter_Plade wrote:

This time I´m putting in a 72mm stroker crank, this should make it a 1341cc, kind of exited to see how this will work out.

Image may have been reduced in size. Click image to view fullscreen.


72mm is a very popular stroke, out of the three I had made up from Porsche cranks I only have one left.
_________________
30 years experience in the sales of new and used auto parts!
36 horsepower parts for sale at http://www.aircooledresearch.com/
Or the new site at http://www.bugparts.com
Check out the Bonneville project:
http://aircooledresearch.com/docs/thebonnevilleproject.html#

"All limitations are self imposed."
Some Chinese guy
Back to top
View user's profile Send private message Send e-mail Visit poster's website Gallery Classifieds Feedback
oldbusboy
Samba Member


Joined: June 25, 2006
Posts: 604
Location: Bowen Island, BC Canada
oldbusboy is offline 

PostPosted: Mon Dec 10, 2012 3:02 pm    Post subject: Reply with quote

Hi Peter,

You've run both a Judson and an Express engine on the same car. Can you pick which of the two gave you better low and top end performance? Which did you enjoy more? Which (if either) was a pain to set-up and maintain?

Thanks
Trevor
_________________
1968 porsche
Back to top
View user's profile Send private message Send e-mail Gallery Classifieds Feedback
Peter_Plade
Samba Member


Joined: January 09, 2005
Posts: 551
Location: Denmark
Peter_Plade is offline 

PostPosted: Tue Dec 11, 2012 6:16 am    Post subject: Reply with quote

Hi Trevor
I like the Express motor the most. Not near the same problems as I had with the Judson.
And I can push it much more without it getting to hot.
Only thing that I miss is the torque at low rpm´s that the Judson had.
_________________
http://vw-bluehats.blogspot.com/
Back to top
View user's profile Send private message Gallery Classifieds Feedback
Peter_Plade
Samba Member


Joined: January 09, 2005
Posts: 551
Location: Denmark
Peter_Plade is offline 

PostPosted: Sun Feb 17, 2013 3:41 pm    Post subject: Reply with quote

Finnally I made some progress on the motor.
The short block is now assembled, and now some machine work is needed before I can get any further.
Image may have been reduced in size. Click image to view fullscreen.

_________________
http://vw-bluehats.blogspot.com/
Back to top
View user's profile Send private message Gallery Classifieds Feedback
Peter_Plade
Samba Member


Joined: January 09, 2005
Posts: 551
Location: Denmark
Peter_Plade is offline 

PostPosted: Sun Feb 23, 2014 10:22 am    Post subject: Reply with quote

I had 8500 trouble free kilometers with the new set up last summer.
The extra ccm made some nice low end torque,and the hp raised to 55 on the dyno.
This winter I made a new "Abarth" for it and now it's ready for some more driving Very Happy

Image may have been reduced in size. Click image to view fullscreen.


Image may have been reduced in size. Click image to view fullscreen.

_________________
http://vw-bluehats.blogspot.com/
Back to top
View user's profile Send private message Gallery Classifieds Feedback
turbolaz
Samba Member


Joined: August 25, 2005
Posts: 87

turbolaz is offline 

PostPosted: Fri Mar 07, 2014 6:23 pm    Post subject: engine Reply with quote

Nice engine peter, im looking to build something like this what size crank did you use? what kind of carb kit is that?
_________________
shipping extra,paypal ok at 4% added to parts.
parts are sold as is.
Back to top
View user's profile Send private message Send e-mail Gallery Classifieds Feedback
Peter_Plade
Samba Member


Joined: January 09, 2005
Posts: 551
Location: Denmark
Peter_Plade is offline 

PostPosted: Sat Mar 08, 2014 12:10 pm    Post subject: Reply with quote

I use a 72mm DPR crank, it's really good!
The kit is Autotechnik Express made in Hannover.
_________________
http://vw-bluehats.blogspot.com/
Back to top
View user's profile Send private message Gallery Classifieds Feedback
malsteph
Samba Member


Joined: August 05, 2008
Posts: 42
Location: Liège (Belgium)
malsteph is offline 

PostPosted: Thu Apr 03, 2014 7:19 am    Post subject: Reply with quote

You could use an early Porsche cam. (103 if my memory is correct)
Period correct and very compatible with the rest of the engine.

Id would probably move the power band a little higher in the revs. But if you are still getting good torque value around 3000 RPM, it is worth a try.
Back to top
View user's profile Send private message Gallery Classifieds Feedback
tobiasax
Samba Member


Joined: May 07, 2004
Posts: 202
Location: Sweden
tobiasax is offline 

PostPosted: Thu Apr 03, 2014 11:10 am    Post subject: Reply with quote

malsteph wrote:
You could use an early Porsche cam. (103 if my memory is correct)
Period correct and very compatible with the rest of the engine.

Id would probably move the power band a little higher in the revs. But if you are still getting good torque value around 3000 RPM, it is worth a try.


Hello malsteph: Have you good info on early Porsche cams? I have bee trying to find out what different cams the pre-A had, but haven't really succeeded.
Back to top
View user's profile Send private message Gallery Classifieds Feedback
Peter_Plade
Samba Member


Joined: January 09, 2005
Posts: 551
Location: Denmark
Peter_Plade is offline 

PostPosted: Fri Apr 04, 2014 12:39 pm    Post subject: Reply with quote

I use a mr okrasa cam and have no plans changing it, since it runs so good as it does. Might look for other cams if I some day need to take it apart again.
_________________
http://vw-bluehats.blogspot.com/
Back to top
View user's profile Send private message Gallery Classifieds Feedback
Display posts from previous:   
Reply to topic    Forum Index -> Vintage Speed All times are Mountain Standard Time/Pacific Daylight Savings Time
Page: Previous  1, 2, 3, 4  Next
Page 3 of 4

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum

About | Help! | Advertise | Donate | Premium Membership | Privacy/Terms of Use | Contact Us | Site Map
Copyright © 1996-2023, Everett Barnes. All Rights Reserved.
Not affiliated with or sponsored by Volkswagen of America | Forum powered by phpBB
Links to eBay or other vendor sites may be affiliate links where the site receives compensation.