Chris Wilson Posted November 25, 2005 Share Posted November 25, 2005 Rare picture of a late F1 crank. Note the counterweights. Why are they bolted on? Virtual pint to first correct answer Quote Link to comment Share on other sites More sharing options...
Ewen Posted November 25, 2005 Share Posted November 25, 2005 Because blu-tack wouldnt cut it ? Quote Link to comment Share on other sites More sharing options...
heckler Posted November 25, 2005 Share Posted November 25, 2005 so they can fine tune it??? Quote Link to comment Share on other sites More sharing options...
Ewen Posted November 25, 2005 Share Posted November 25, 2005 Are they a different / heavier metal to the rest of the crank ? Is the same crank used in another Peugeot racing engine, and the weights are swappable to suit ? Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted November 25, 2005 Author Share Posted November 25, 2005 Passes virtual pint to Ewen. The counterweights were depleted uranium or tungsten, to add mass with a minimal diameter increase, to keep crankshaft centreline as low as possible, even 1 mm is treasured in getting the C of G of th car as low as possible. A crank wholly made of DU or Tungsten would be massivley heavy, so only the counterweights were these materials, and as welding would be impossible they bolted them on. Vastly expensive, and well fastened to stay on at 19,000 RPM, (no Blu_Tack ). Quote Link to comment Share on other sites More sharing options...
RobSheffield Posted November 25, 2005 Share Posted November 25, 2005 ah Ewan, so you found the Atlas F1 thread too?! Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted November 25, 2005 Author Share Posted November 25, 2005 Only recently discovered the site myself, some very interesting posts, IMO. Quote Link to comment Share on other sites More sharing options...
TLicense Posted November 25, 2005 Share Posted November 25, 2005 Only recently discovered the site myself, some very interesting posts, IMO. And a lot of old shit as well!! Quote Link to comment Share on other sites More sharing options...
TLicense Posted November 25, 2005 Share Posted November 25, 2005 The counterweights were depleted uranium or tungsten I believe it's actually Duramide (SP?) We use it quite a lot for things that have to be heavy as it's very dense (ballast on the race car for example). We've not been allowed to use depleted uranium for a long time! When Peugeot were in the game the engines weren't revving anywhere near 19K. Most won't do it now!! (I know the BMW of last year wouldn't! Well not for more than maybe 1 or 2 laps a weekend, and their V8 of next year apparently won't crack 19K by much!) I know for a fact that the Supertek engine used not so long ago by a lot of teams and most recently IIRC by Minardi topped out at a little over 16K! Incidentally I was having a poke around the racebays today, we've been installing the Cossie V8's for the past few days. I can tell you! Wish I could have took a few pickies for you chaps, but camera's (even on mobile phones) are a big no-no. Especially as I'm heading out the door in 24 weeks! Still not quite sure how we're going to fit it inside's next years bodywork... Quote Link to comment Share on other sites More sharing options...
Jake Posted November 25, 2005 Share Posted November 25, 2005 we've been installing the Cossie V8's for the past few days. Still not quite sure how we're going to fit it inside's next years bodywork...I know a bloke that makes some cheap fibreglass widebody kits in his back garden. Let me know if Frank's interested. Quote Link to comment Share on other sites More sharing options...
Ewen Posted November 26, 2005 Share Posted November 26, 2005 Im chuffed, pure guess honest Quote Link to comment Share on other sites More sharing options...
TLicense Posted November 26, 2005 Share Posted November 26, 2005 I know a bloke that makes some cheap fibreglass widebody kits in his back garden. Let me know if Frank's interested. WIDE...:thumbdown narrow's the way to go :wink: Quote Link to comment Share on other sites More sharing options...
Jake Posted November 26, 2005 Share Posted November 26, 2005 You F1 dudes are sooo hard to please. I bet Frank Williams eBay feedback score is crap. Quote Link to comment Share on other sites More sharing options...
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