mangrovejack38 Seriously Crusin Dubber
159 posts · joined Oct 2006 ·
anyone out there have a pobjoy crank they want to part with?
wtd pobjoy crank
cnfabo Custom Title Time!
1,353 posts · joined Apr 2008 ·
You most lickly will have to find a German crank that has not been ground on the gournals and is straight and send it to him,. Or you could go DPR in america
Fabo
Fabo
Craig Torrens 6 times Australian, 7 times State Hillclimb Class Champion
8,040 posts · joined Jan 2003 ·
good luck finding a 'used' one that's not cracked to pieces..........if you do find one, get it crack tested before handing over any $$$
colin Fahrvergnugen
984 posts · joined Mar 2007 ·
Get a DPR, quality is awesome.cnfabo wrote:You most lickly will have to find a German crank that has not been ground on the gournals and is straight and send it to him,. Or you could go DPR in america
Fabo
Cheers Col
Craig Torrens 6 times Australian, 7 times State Hillclimb Class Champion
8,040 posts · joined Jan 2003 ·
Colin and Cnfabo are right. DPR produces quality cranks and are a LOT better value.colin wrote:Get a DPR, quality is awesome.cnfabo wrote:You most lickly will have to find a German crank that has not been ground on the gournals and is straight and send it to him,. Or you could go DPR in america
Fabo
Cheers Col
http://dprmachine.com.s152704.gridserver.com/products/crankshafts-type-i/
matberry Moderator Go hard or go home
8,114 posts · joined Mar 2006 ·
x4 for DPR
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
cnfabo Custom Title Time!
1,353 posts · joined Apr 2008 ·
X29 it will be easier just ordering one from DPR....
66deluxe Custom Title Time!
1,593 posts · joined Aug 2005 ·
I ordered a 78 counterweighted crank with lightened flywheel from DPR was approx $600 including shipping.
This is my Volkswagen, there are many like it, but this one is mine. Without me my Volkswagen is useless, without my Volkswagen, I am useless.
61 Karmann Ghia 2110cc type1 w Los Panchito's
66 Deluxe Beetle 2270 type 4
10 Subaru WRX Impreza
61 Karmann Ghia 2110cc type1 w Los Panchito's
66 Deluxe Beetle 2270 type 4
10 Subaru WRX Impreza
fish26 Fahrvergnugen
903 posts · joined Jul 2007 ·
you can make 180HP and 8000rpm on a German stock non counterweighted properly built crank, find a good one and call me, I will get it done for you.
Second option DPR, DMS, Pauter
Second option DPR, DMS, Pauter
bitten by the bug..........several times
hellbugged 48's and straight cuts
5,080 posts · joined Apr 2003 ·
😂 expected engine life?
fish26 Fahrvergnugen
903 posts · joined Jul 2007 ·
well we all know engine life expectancy is not just about the crank 😵💫
come to think of it, a nice Berg Welded 69 crank is available on cal-look.no
come to think of it, a nice Berg Welded 69 crank is available on cal-look.no
bitten by the bug..........several times
hellbugged 48's and straight cuts
5,080 posts · joined Apr 2003 ·
True. Being the "heart" of any engine but, it's quite important its known weaknesses/ design flaws/inherant shortcomings are addressed to provide the rest of the components a sound basis to work from. Those DPR cranks are good value $$$ start point for addressing the well known issues and risks of spinning a standard crank through 8000rpm
HP figures are not always stated with longevity in mind either.
Always interested to hear of different ways to get the job done tho, what tricks you doing !?!?
HP figures are not always stated with longevity in mind either.
Always interested to hear of different ways to get the job done tho, what tricks you doing !?!?
fish26 Fahrvergnugen
903 posts · joined Jul 2007 ·
I doubt he's building an 8000rpm engine but it's definitely possible on the German Forging even without counter weights.
Biggest trick is to keep the rotating assembly light and balanced, then there is micro-polish, 8 dowel, etc.
I have a Pobjoy crank in the garage 0.10, 8 dowel, non welded.........not sure I want to sell it alone.
It's going in a 1835cc thickwall, Pobjoy Heads, Bugpack Rods, Bugpack Straight cuts, GB 310, Scat Rockers......
Biggest trick is to keep the rotating assembly light and balanced, then there is micro-polish, 8 dowel, etc.
I have a Pobjoy crank in the garage 0.10, 8 dowel, non welded.........not sure I want to sell it alone.
It's going in a 1835cc thickwall, Pobjoy Heads, Bugpack Rods, Bugpack Straight cuts, GB 310, Scat Rockers......
bitten by the bug..........several times
Craig Torrens 6 times Australian, 7 times State Hillclimb Class Champion
8,040 posts · joined Jan 2003 ·
So what you have is a VW crank that has been ground and has 8 dowels......what makes it a pobjoy ?fish26 wrote:I have a Pobjoy crank in the garage 0.10, 8 dowel, non welded.........not sure I want to sell it alone.
matberry Moderator Go hard or go home
8,114 posts · joined Mar 2006 ·
^^ maybe Stan forged it?
🙅😂
🙅😂
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
fish26 Fahrvergnugen
903 posts · joined Jul 2007 ·
LOL.......Stan didn't do anything just put his name on it, supposedly came out of a "Pobjoy" 1915cc and I'm not stating that "his" crank will go to 8000rpm, all I'm saying is a German Forging can be made to.
bitten by the bug..........several times
mactaylor Custom Title Time!
1,005 posts · joined Aug 2007 ·
heads and cam make the revs, everything else makes it stay together. no arguments!
EVERLAST CONCRETE TANKS
1800 552 123
1800 552 123
matberry Moderator Go hard or go home
8,114 posts · joined Mar 2006 ·
So truemactaylor wrote:heads and cam make the revs, everything else makes it stay together. no arguments!
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
hellbugged 48's and straight cuts
5,080 posts · joined Apr 2003 ·
Yeah that's what I thought you were sayingfish26 wrote:I doubt he's building an 8000rpm engine but it's definitely possible on the German Forging even without counter weights
.....and I was just wondering what tricks are used to stop the crank flexing, case getting flogged out, bearings running dry, seizing and the following catastrophic failure of an entire engine's assembly canabilizing itself @ 130 bites a second 😉
Craig Torrens 6 times Australian, 7 times State Hillclimb Class Champion
8,040 posts · joined Jan 2003 ·
Yep, that's been proven all over the world for decades.fish26 wrote:all I'm saying is a German Forging can be made to.
So what do you mean by 'properly built crank' if it doesn't have counterweights welded to it ?fish26 wrote:you can make 180HP and 8000rpm on a German stock non counterweighted properly built crank, find a good one and call me, I will get it done for you.
Do you get your ones done locally ?
If I gave you a standard "virgin" german crank, what will be done to it (and cost) to make it a 8000rpm crank......without it having counterweights ?
Cheers
bigrudi Wolfsburg Wizard
401 posts · joined Apr 2005 ·
the crank might do 8000 with a std german crank but the shitty mag case will be floged out in a very short time with out counter weights, dpr way to go 360degree counter weightsl drilled lightened blade ground 9000 baja tested rpm in an alloy case all day long, prefer to get my power from e85 boost and freindly to the planet , heard an l big may run at the easter meet at mt panorama next year cheers Rudi ps ive got a pobjoy crank in a complete 1916 minus heads ready to go pm me if u want more details
fish26 Fahrvergnugen
903 posts · joined Jul 2007 ·
Never played with full circle counterweights so cannot comment just letting OP know what's possible.
If he definitely wants a Pobjoy crank he should just get one, also lets not forget the amount Stan and others like him have contributed to our hobby and let people decide for themselves which way they want to go, not that Stan's engines are my cup of tea but that's just my opinion.
Heads and cam create power together with induction and exhaust and allow the engine in their combination to breathe more efficiently at higher RPM, they don't just create rpm, they affect rpm which are created by the whole engine combination. No Arguements. It's all about the purpose of engine combination and quality of parts and assembly.
It's misinterpretation of information on these forums that sometimes steers newbies to the hobby in stray directions and impending let down.
Eg.
Hi flow heads, welded, hand ported, large valves
Hot cam FK87
Monza exhaust
Single 34
Stock rotating assembly
Who thinks this "hot" combination will rev past 4000
Craig, I'm happy to give you the details of who I believe is the best crank grinder around, you can let him know what you need but sarcasm won't fly with him and he'll let you know about it.
If he definitely wants a Pobjoy crank he should just get one, also lets not forget the amount Stan and others like him have contributed to our hobby and let people decide for themselves which way they want to go, not that Stan's engines are my cup of tea but that's just my opinion.
Heads and cam create power together with induction and exhaust and allow the engine in their combination to breathe more efficiently at higher RPM, they don't just create rpm, they affect rpm which are created by the whole engine combination. No Arguements. It's all about the purpose of engine combination and quality of parts and assembly.
It's misinterpretation of information on these forums that sometimes steers newbies to the hobby in stray directions and impending let down.
Eg.
Hi flow heads, welded, hand ported, large valves
Hot cam FK87
Monza exhaust
Single 34
Stock rotating assembly
Who thinks this "hot" combination will rev past 4000
Craig, I'm happy to give you the details of who I believe is the best crank grinder around, you can let him know what you need but sarcasm won't fly with him and he'll let you know about it.
bitten by the bug..........several times
mangrovejack38 Seriously Crusin Dubber
159 posts · joined Oct 2006 ·
never mind,didnt think it would start all this
Craig Torrens 6 times Australian, 7 times State Hillclimb Class Champion
8,040 posts · joined Jan 2003 ·
Action Cranks at Wetherill Park gets my vote.
QuikBug Commited Dubber
63 posts · joined May 2006 ·
Hey Craig
Don't understand mate you use to be one of Stan's disciples, while I think he is a great machinist, you used to preach that the guy walked on water !!!!
Why the 180 ?
Don't understand mate you use to be one of Stan's disciples, while I think he is a great machinist, you used to preach that the guy walked on water !!!!
Why the 180 ?
vassy66T1 Wow ... are U reading this?
2,120 posts · joined Jun 2003 ·
mangrovejack, take up Bigrudi's offer. Send him a PM.
fish26 Fahrvergnugen
903 posts · joined Jul 2007 ·
You're on the ball Craig😉 Bob is the best there is.
bitten by the bug..........several times
petemart Seriously Crusin Dubber
105 posts · joined Oct 2010 ·
Hey Ben and Craig, it looked like you two where starting to get a little crank-y with each other 🙂