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 7765 Posts Member #: 74 I pick holes in everything.. Chief ancient post excavator |
3rd Oct, 2011 at 04:23:58pm
On 2nd Oct, 2011 Sprocket said:
Why does no one do a forged steel crank anymore? surely must cost less in machining to justify the extra cost in forging and strength? There are still a few forgers in Shefield ( and no I don't mean the criminal type) Paul Ivey do the forged ones for both Minispares, SH and Swiftune if I'm not mistaken. The Swifty and SH ones being identical. I wouldn't run an A+ rod at 8500rpm in a racecar for several seasons, that's for sure.. On 13th Jul, 2012 Ben H said:
Mine gets in the way a bit, but only when it is up. If it is down it does not cause a problem. |
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 6965 Posts Member #: 507 Fastest A Series Mini in the World leeds/wakefield. |
3rd Oct, 2011 at 08:54:57pm
You beat me to it regarding Paul Ivey,
On 3rd Oct, 2011 Vegard said:
On 2nd Oct, 2011 Sprocket said:
Why does no one do a forged steel crank anymore? surely must cost less in machining to justify the extra cost in forging and strength? There are still a few forgers in Shefield ( and no I don't mean the criminal type) Paul Ivey do the forged ones for both Minispares, SH and Swiftune if I'm not mistaken. The Swifty and SH ones being identical. I wouldn't run an A+ rod at 8500rpm in a racecar for several seasons, that's for sure.. |
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326 Posts Member #: 1323 Senior Member |
3rd Oct, 2011 at 09:37:19pm
On 2nd Oct, 2011 Jimster said:
over 9k, same as my std crank How many hours labour to do a fully worked std crank that will rev to over 9000 rpm for a whole race and take the odd run to 10000 when needed ? just curious - not a dig |
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6965 Posts Member #: 507 Fastest A Series Mini in the World leeds/wakefield. |
3rd Oct, 2011 at 09:46:36pm
Too many . 8-10 hrs for one of my modified cranks and i have the right machines to do the job,
On 3rd Oct, 2011 carl talbot said:
On 2nd Oct, 2011 Jimster said:
over 9k, same as my std crank How many hours labour to do a fully worked std crank that will rev to over 9000 rpm for a whole race and take the odd run to 10000 when needed ? just curious - not a dig |
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