| [ Total Views: 1066 | Total Replies: 26 | Thread Id: 76918 ] |
|
|
 sander288
Custom Title Time!
"Bolt-on Master"
Posts: 1404
Threads: 183
Registered: August 26th, 2008
Member Is Offline
Location: Norman Park, QLD
Theme: UltimaBB Pro Blue ( Default )
Mood: This is my bug. There are many others like it, but this one is mine.
|
| posted on June 1st, 2009 at 01:54 PM |
|
|
Custom Cranksahfts
Reading the first issue of VWMA again today and looking at the Targa Bug, it had a 56mm or something crank, how is this possible, and does anybody
know where you can get a custom crank made?
reason being is i'd love to make a 60mm crank by 92mm motor to compete in hillclimb up to 1600cc
|
|
|
hellbugged
A.k.a.: Daimo Pell
23 Windows of Awesome
48's and straight cuts
Posts: 5080
Threads: 116
Registered: April 17th, 2003
Member Is Offline
Location: Nambucca Valley NSW
Theme: UltimaBB Psyche Blue
Mood: Couldn't care less
|
| posted on June 1st, 2009 at 02:25 PM |
|
|
got one here ready to go!
|
|
|
1303
Officially Full-On Dubber
Posts: 250
Threads: 42
Registered: September 29th, 2003
Member Is Offline
Location: Central Coast NSW
Theme: UltimaBB Pro Blue ( Default )
|
| posted on June 1st, 2009 at 03:09 PM |
|
|
Sander,
why bother, just go subaru
Cheers
Paul
|
|
|
Phil74Camper
Son of Jim - Creator of Good
Head in the Clouds
Posts: 2703
Threads: 193
Registered: August 28th, 2002
Member Is Offline
Location: Sydney
Theme: UltimaBB Pro Blue ( Default )
|
| posted on June 1st, 2009 at 06:25 PM |
|
|
Do they make Subaru engines smaller than 1600 cc? Maybe out of a Sherpa? or was it a Mighty Boy?
I've never heard of a 56 mm crank, butu you could make one out of, say, a VW 1200 cc 40-hp crank which is 64 mm. You would have to off-set grind the
crank journals, bringing the centres 4mm closer to the crank centre. This makes the crank journals 8 mm smaller than stock. Custom rods required. But
with 94 mm cylinders, that's 1554 cc.
If you only off-set ground the journals 4mm smaller than stock, bringing the centres in by 2mm, then you have a 60 mm stroke. With 92 mm cylinders
that's 1595 cc.
You could also just use the 64 mm crank with 88 mm cylinders bored out to 89 mm, to get 1592 cc.
|
|
|
sander288
Custom Title Time!
"Bolt-on Master"
Posts: 1404
Threads: 183
Registered: August 26th, 2008
Member Is Offline
Location: Norman Park, QLD
Theme: UltimaBB Pro Blue ( Default )
Mood: This is my bug. There are many others like it, but this one is mine.
|
| posted on June 1st, 2009 at 07:14 PM |
|
|
good one paul, I suppose I deserve that!
|
|
|
sander288
Custom Title Time!
"Bolt-on Master"
Posts: 1404
Threads: 183
Registered: August 26th, 2008
Member Is Offline
Location: Norman Park, QLD
Theme: UltimaBB Pro Blue ( Default )
Mood: This is my bug. There are many others like it, but this one is mine.
|
| posted on June 1st, 2009 at 07:16 PM |
|
|
Hellbugged? you've got one ready to go? where did you get one, I actually figured I should have 57.5mm with 94 barrels
|
|
|
Phil74Camper
Son of Jim - Creator of Good
Head in the Clouds
Posts: 2703
Threads: 193
Registered: August 28th, 2002
Member Is Offline
Location: Sydney
Theme: UltimaBB Pro Blue ( Default )
|
| posted on June 1st, 2009 at 07:20 PM |
|
|
94 bore x 57.5 stroke = 1596.1 cc.
94 bore x 57.6 stroke = 1598.9 cc.
94 bore x 57.7 stroke = 1601.7 cc.
Probably easier to mess with the bore though, rather than the stroke...
|
|
|
hellbugged
A.k.a.: Daimo Pell
23 Windows of Awesome
48's and straight cuts
Posts: 5080
Threads: 116
Registered: April 17th, 2003
Member Is Offline
Location: Nambucca Valley NSW
Theme: UltimaBB Psyche Blue
Mood: Couldn't care less
|
| posted on June 1st, 2009 at 07:48 PM |
|
|
nah, think small cylinders to keep it nice and squishy.......and rev rev rev
the journals would be welded and offset ground, so still same rod journal..........just like welded stroker..........UNLESS you were to get one
machined from a forged/counterweighted casting 
reeeeeevvvvvsssssssss
62mm X 90.5 =1595cc
or it may be....
64mm X 88mm = 1557cc
i can't remember and will have to look........both size "berg special" P& B on the shelf too
62mm...................69mm.................78mm
62mm de-stroked V's 78mm stroker
damn dude, you only had to ask
|
|
|
sander288
Custom Title Time!
"Bolt-on Master"
Posts: 1404
Threads: 183
Registered: August 26th, 2008
Member Is Offline
Location: Norman Park, QLD
Theme: UltimaBB Pro Blue ( Default )
Mood: This is my bug. There are many others like it, but this one is mine.
|
| posted on June 1st, 2009 at 08:01 PM |
|
|
I was wanting 92mm or bigger, so I can make the most of a twin igniton, it;s no good really with a bore smaller than 92, BMW did a heap of research
apparently with their new bikes and found this out, talking to stan confirmed this
|
|
|
hellbugged
A.k.a.: Daimo Pell
23 Windows of Awesome
48's and straight cuts
Posts: 5080
Threads: 116
Registered: April 17th, 2003
Member Is Offline
Location: Nambucca Valley NSW
Theme: UltimaBB Psyche Blue
Mood: Couldn't care less
|
| posted on June 1st, 2009 at 08:05 PM |
|
|
| Quote: | Originally
posted by sander288
I was wanting 92mm or bigger, so I can make the most of a twin igniton, it;s no good really with a bore smaller than 92, BMW did a heap of research
apparently with their new bikes and found this out, talking to stan confirmed this
|
.......that must be where Dangerous,the two rocket Rods, Ross
Freestone, Stoker, Kristen, Volkomen, Pagey...........and all those psycos in the USA are falling short..........only one plug per cylinder!!!, damn
didn't think of that did they
get Stan to make you one then
CYA
|
|
|
 matberry
Super Moderator
Go hard or go home
Posts: 8114
Threads: 134
Registered: March 7th, 2006
Member Is Offline
Location: Cooroy Qld
Theme: UltimaBB Pro Blue
Mood: enjoying waving at all my Kombi buddies from my T3
|
| posted on June 1st, 2009 at 09:48 PM |
|
|
| Quote: | Originally
posted by hellbugged
.......that must be where Dangerous,the two rocket Rods, Ross
Freestone, Stoker, Kristen, Volkomen, Pagey...........and all those psycos in the USA are falling short..........only one plug per cylinder!!!, damn
didn't think of that did they
get Stan to make you one then
CYA
|
Ha ha
That cranak was custom ground at Crankshaft Engineering in Bris. We used a Toyota rod and 85.5mm bore to get under the 1300cc capacity for the regs.
She revved like a banshee to 8500, was a heap of fun to drive, lacked a bit of torque tho
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
 |
|
|
1303
Officially Full-On Dubber
Posts: 250
Threads: 42
Registered: September 29th, 2003
Member Is Offline
Location: Central Coast NSW
Theme: UltimaBB Pro Blue ( Default )
|
| posted on June 1st, 2009 at 09:51 PM |
|
|
| Quote: | Originally
posted by sander288
good one paul, I suppose I deserve that!
|
Sorry mate.........couldnt resist
|
|
|
hellbugged
A.k.a.: Daimo Pell
23 Windows of Awesome
48's and straight cuts
Posts: 5080
Threads: 116
Registered: April 17th, 2003
Member Is Offline
Location: Nambucca Valley NSW
Theme: UltimaBB Psyche Blue
Mood: Couldn't care less
|
| posted on June 1st, 2009 at 10:02 PM |
|
|
| Quote: | Originally
posted by matberry
Ha ha
That crank was custom ground at Crankshaft Engineering in Bris. We used a Toyota rod and 85.5mm bore to get under the 1300cc capacity for the regs.
She revved like a banshee to 8500, was a heap of fun to drive, lacked a bit of torque tho
|
knew you would tune in Matty
.......soooooo less stroke less torque............
"elementry dear Watson"
just need a seven speed close ratio box like those BMW bikes to keep a small stroke big bore in the upper rpm regions 
|
|
|
matberry
Super Moderator
Go hard or go home
Posts: 8114
Threads: 134
Registered: March 7th, 2006
Member Is Offline
Location: Cooroy Qld
Theme: UltimaBB Pro Blue
Mood: enjoying waving at all my Kombi buddies from my T3
|
| posted on June 1st, 2009 at 10:18 PM |
|
|
| Quote: | Originally
posted by hellbugged
just need a seven speed close ratio box like those BMW bikes to keep a small stroke big bore in the upper rpm regions
|
On the money yet again Daimo. Can you please help me find one of those 7 speeds.....
Good to see your back online mate, must have finished wrenching on that Vrex type three thingy.
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
|
|
|
Craig Torrens
A.k.a.: Craig Torrens
Scirocco Rare
6 times Australian, 7 times State Hillclimb Class Champion
Posts: 8040
Threads: 347
Registered: January 10th, 2003
Member Is Offline
Location: Sydney
Theme: UltimaBB Pro Blue ( Default )
Mood: Time to go Salt lake racing, and actually achieve a result.
|
| posted on June 2nd, 2009 at 08:50 AM |
|
|
oh dear here we go again............
|
|
|
matberry
Super Moderator
Go hard or go home
Posts: 8114
Threads: 134
Registered: March 7th, 2006
Member Is Offline
Location: Cooroy Qld
Theme: UltimaBB Pro Blue
Mood: enjoying waving at all my Kombi buddies from my T3
|
| posted on June 2nd, 2009 at 08:55 AM |
|
|
| Quote: | Originally
posted by Craig Torrens
oh dear here we go again............
"on the money"......hahaha yeah right.
|
What's your point Craig?
sorry we shouldn't bag any torque mongers.....all in jest you know, how many people have 1300cc hi po vw engines let alone 7 speed box's?
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
|
|
|
Craig Torrens
A.k.a.: Craig Torrens
Scirocco Rare
6 times Australian, 7 times State Hillclimb Class Champion
Posts: 8040
Threads: 347
Registered: January 10th, 2003
Member Is Offline
Location: Sydney
Theme: UltimaBB Pro Blue ( Default )
Mood: Time to go Salt lake racing, and actually achieve a result.
|
| posted on June 2nd, 2009 at 09:08 AM |
|
|
my point ?
just a question..why did you go to all the trouble to come up with the short stroke 1300 combo ?
Sander, i think you will find a destroked 69mm crank with 94's would be a good combo  .......but its over 1600!
|
|
|
matberry
Super Moderator
Go hard or go home
Posts: 8114
Threads: 134
Registered: March 7th, 2006
Member Is Offline
Location: Cooroy Qld
Theme: UltimaBB Pro Blue
Mood: enjoying waving at all my Kombi buddies from my T3
|
| posted on June 2nd, 2009 at 09:10 AM |
|
|
So you can fit in big valves
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
|
|
|
Craig Torrens
A.k.a.: Craig Torrens
Scirocco Rare
6 times Australian, 7 times State Hillclimb Class Champion
Posts: 8040
Threads: 347
Registered: January 10th, 2003
Member Is Offline
Location: Sydney
Theme: UltimaBB Pro Blue ( Default )
Mood: Time to go Salt lake racing, and actually achieve a result.
|
| posted on June 2nd, 2009 at 09:17 AM |
|
|
ha ha......geez how big were the valves !
|
|
|
polak
A.k.a.: Adam Pawlowski
Fahrvergnugen
Everything is alright with enough Vodka :P
Posts: 913
Threads: 49
Registered: May 28th, 2009
Member Is Offline
Location: Campbelltown, NSW
Theme: UltimaBB Pro Blue
Mood: definitely
|
| posted on June 2nd, 2009 at 12:21 PM |
|
|
| Quote: | Originally
posted by 1303
Sander,
why bother, just go subaru
Cheers
Paul
|
if you want to open that can of worms again, the "subaru invasion" page is still running hahaha
VW - helping put oil back into the ground for over 60 years |
|
|
hellbugged
A.k.a.: Daimo Pell
23 Windows of Awesome
48's and straight cuts
Posts: 5080
Threads: 116
Registered: April 17th, 2003
Member Is Offline
Location: Nambucca Valley NSW
Theme: UltimaBB Psyche Blue
Mood: Couldn't care less
|
| posted on June 2nd, 2009 at 02:32 PM |
|
|
| Quote: | Originally
posted by Craig Torrens
Sander, i think you will find a destroked 69mm crank with 94's would be a good combo .......but its over 1600!
|
but he wants 1600cc!
if the magic ratio of hp to CC's comes from a 69 X 94 engine...
why wouldn't you want to reduce the cylinders size relative to the de-stroke to keep this magic ratio close
|
|
|
matberry
Super Moderator
Go hard or go home
Posts: 8114
Threads: 134
Registered: March 7th, 2006
Member Is Offline
Location: Cooroy Qld
Theme: UltimaBB Pro Blue
Mood: enjoying waving at all my Kombi buddies from my T3
|
| posted on June 2nd, 2009 at 03:16 PM |
|
|
| Quote: | Originally
posted by hellbugged
| Quote: | Originally
posted by Craig Torrens
Sander, i think you will find a destroked 69mm crank with 94's would be a good combo .......but its over 1600!
|
but he wants 1600cc!
if the magic ratio of hp to CC's comes from a 69 X 94 engine...
why wouldn't you want to reduce the cylinders size relative to the de-stroke to keep this magic ratio close
|
Daimo you might be getting too technical now.......out with the calculator boys
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
|
|
|
Phil74Camper
Son of Jim - Creator of Good
Head in the Clouds
Posts: 2703
Threads: 193
Registered: August 28th, 2002
Member Is Offline
Location: Sydney
Theme: UltimaBB Pro Blue ( Default )
|
| posted on June 2nd, 2009 at 03:57 PM |
|
|
You could press buttons on your calculator endlessly. It's easier to do it in MS Excel.
Put the bore in mm in column A, line 1. Put the stroke in mm in column B, line 1.
To work out the engine size, put the following calculation in Column C, line 1:
=((A1/2)*(A1/2))*12.566*B1/1000
The answer will be in cc. Repeat down the spreadsheet for as much as you like and you can plug different numbers in A and B all day.
|
|
|
Craig Torrens
A.k.a.: Craig Torrens
Scirocco Rare
6 times Australian, 7 times State Hillclimb Class Champion
Posts: 8040
Threads: 347
Registered: January 10th, 2003
Member Is Offline
Location: Sydney
Theme: UltimaBB Pro Blue ( Default )
Mood: Time to go Salt lake racing, and actually achieve a result.
|
| posted on June 2nd, 2009 at 06:47 PM |
|
|
| Quote: | Originally
posted by hellbugged
| Quote: | Originally
posted by Craig Torrens
Sander, i think you will find a destroked 69mm crank with 94's would be a good combo .......but its over 1600!
|
but he wants 1600cc!
if the magic ratio of hp to CC's comes from a 69 X 94 engine...
why wouldn't you want to reduce the cylinders size relative to the de-stroke to keep this magic ratio close
|
who said that was the magic ratio ?
|
|
|
matberry
Super Moderator
Go hard or go home
Posts: 8114
Threads: 134
Registered: March 7th, 2006
Member Is Offline
Location: Cooroy Qld
Theme: UltimaBB Pro Blue
Mood: enjoying waving at all my Kombi buddies from my T3
|
| posted on June 2nd, 2009 at 09:41 PM |
|
|
| Quote: | Originally
posted by Craig Torrens
ha ha......geez how big were the valves !
|
Big enough to win class in Targa first time out!!!
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
|
|
|
LIFE IN THE LOW LANE
A.k.a.: Brennden Alder
Son of Jim - Creator of Good
All people have the right to stupidity but some abuse the privilege
Posts: 2534
Threads: 53
Registered: March 11th, 2007
Member Is Offline
Location: Murrumba Downs - Brisbane
Theme: UltimaBB Pro Orange
Mood: What Kombi wants vs what Kombi gets are nowhere near the same...
|
| posted on June 2nd, 2009 at 10:32 PM |
|
|
I'm guessing Matt that you wanted to be "legal" and not running larger capacity than you are "legally" allowed hence the homework on getting the
capacity close to the limit and spending a lot of time on heads etc etc.
It is always nice to win but even nicer to win knowing you are 100% legal to the rules. My uncles rule of thumb when building Formula Vees. Nothing
better than beating known cheats with a totally legal engine he reckons.....
[size=4] ACCEPT THAT SOME DAYS YOU ARE THE PIDGEON AND SOME DAYS YOU ARE THE STATUE[/size]
Alder Outlaws VW Racing - check it out on fb!!
|
|
|
coletrickle
Wolfsburg Wizard
Posts: 661
Threads: 34
Registered: April 22nd, 2009
Member Is Offline
Theme: UltimaBB Pro Blue ( Default )
|
| posted on June 4th, 2009 at 10:57 AM |
|
|
Correct that engine had no torque to speak of but I've driven it years ago and boy did that engine rev!An old saying is its not how fast you go its
how you go fast.if every body had a 2332 life would be so boring
|
|
|
