Chris Wilson Posted October 3, 2005 Share Posted October 3, 2005 Nice crank pictured below. Who can say what it's out of? PIC HERE Quote Link to comment Share on other sites More sharing options...
Digsy Posted October 3, 2005 Share Posted October 3, 2005 I'd say some kind of F1 V10 engine judging by the throw and the number of crankarms. Those crankpins are daft long though. I was going to say a W engine initially. Hollow crankpins and tungsten inserts. Mmmmmm. Whatever it is it isn't cheap. *EDIT* It is a V10. Only two lube holes per crankpin. The second closest pin looks well and truly fecked. Quote Link to comment Share on other sites More sharing options...
Lazarus Posted October 3, 2005 Share Posted October 3, 2005 It might be my eyesight, but I can only see 5 piston journals on that crank so that'll narrow it down a bit. Audi? Volvo? Quote Link to comment Share on other sites More sharing options...
Pete Posted October 3, 2005 Share Posted October 3, 2005 Nice crank pictured below. Who can say what it's out of? PIC HERE Why? Have you managed to mix up the engine bits? Quote Link to comment Share on other sites More sharing options...
Lazarus Posted October 3, 2005 Share Posted October 3, 2005 I'd say some kind of F1 V10 engine judging by the throw and the number of crankarms. Those crankpins are daft long though. I was going to say a W engine initially. Hollow crankpins and tungsten inserts. Mmmmmm. Whatever it is it isn't cheap. *EDIT* It is a V10. Only two lube holes per crankpin. The second closest pin looks well and truly fecked. V10 eh! Didn't think of anything that exotic, but I should of realised with Chris's perversion towards megabuck race cars. Quote Link to comment Share on other sites More sharing options...
bromy Posted October 3, 2005 Share Posted October 3, 2005 Focus ST Quote Link to comment Share on other sites More sharing options...
ellis Posted October 3, 2005 Share Posted October 3, 2005 Renault? Quote Link to comment Share on other sites More sharing options...
Digsy Posted October 3, 2005 Share Posted October 3, 2005 The counterbalance weights look like they have been cast or forged which might put a purebred racing engine out of the picture. The piccy isn't good enough to tell really. There are no moulding splitlines that I can see, but if it was a billet crank I think the design would be simpler, and not so rounded. McLaren F1? Quote Link to comment Share on other sites More sharing options...
Keith C Posted October 3, 2005 Share Posted October 3, 2005 Nah, that was a V12 wasn't it? Maybe the M5 V10? Quote Link to comment Share on other sites More sharing options...
attilauk Posted October 4, 2005 Share Posted October 4, 2005 im guessing its from a Judd V10 from a LMP car. Quote Link to comment Share on other sites More sharing options...
Digsy Posted October 4, 2005 Share Posted October 4, 2005 Nah, that was a V12 wasn't it? Yes, it was. Ignore me. Quote Link to comment Share on other sites More sharing options...
Pete Posted October 4, 2005 Share Posted October 4, 2005 The suspense is killing me. Quote Link to comment Share on other sites More sharing options...
tbourner Posted October 4, 2005 Share Posted October 4, 2005 How can it be V10 when there's only 5 arms for conrods. Does that mean that this one is a V16? Quote Link to comment Share on other sites More sharing options...
Alex Posted October 4, 2005 Share Posted October 4, 2005 Some cranks share...some have individual pairs. So yours is an individual V8 and the other is a shared V10... Ohhh can you tell I'm struggling to remember the terminology. Quote Link to comment Share on other sites More sharing options...
Pete Posted October 4, 2005 Share Posted October 4, 2005 This may go some way to explaining it : http://www.e31.net/engines_e.html I like this picture of a BMW V10. http://www.bmwm5.com/articles/m5e60/motor/30-800.jpg Quote Link to comment Share on other sites More sharing options...
Ian C Posted October 4, 2005 Share Posted October 4, 2005 It might be a bimmer but that's a sexy engine. Check out the exhaust manifolds! Don't see that on an OEM engine very often. I wanna put it back together (and put it in a locost haha) -Ian Quote Link to comment Share on other sites More sharing options...
Pete Posted October 4, 2005 Share Posted October 4, 2005 (and put it in a locost haha) Probably would fit in a Luego. http://www.luegosportscars.com/cars/index.html Quote Link to comment Share on other sites More sharing options...
bondango Posted October 4, 2005 Share Posted October 4, 2005 im going with a Honda RC211V Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted October 4, 2005 Author Share Posted October 4, 2005 It's a crank from a 2002 Ferrari F1 engine, looks like it's had a drama on the front rod pin, as it's discoloured with heat. Much more here: http://ferrarichat.com/forum/showthread.php?t=70540 But you need to do a quick and free on line registration to see the pics. Worth it to view the pistons alone, IMO Quote Link to comment Share on other sites More sharing options...
Ian C Posted October 4, 2005 Share Posted October 4, 2005 Probably would fit in a Luego. http://www.luegosportscars.com/cars/index.html Luego Viento: "we have had 6 foot 7 inches tall enthusiasts fit in this car" Were you talking about the V10 or me? -Ian Quote Link to comment Share on other sites More sharing options...
Digsy Posted October 5, 2005 Share Posted October 5, 2005 How can it be V10 when there's only 5 arms for conrods. Does that mean that this one is a V16? I'd be interested inknowing what kind of engine that is from, because its a pretty weird design. Some of the crankpins look different lengths and all the counterbalance weights are completely circular - meaning they aren't counterbalance weights at all and the mass and inertial will be sky-high. Also, not all of the throws have a main bearing in bewteen, so despite all that metal the crank will be bendy. I'm guessing its some kind of old-skool big litres race engine with a relatively small power output? Anwyay - I was the only one who spotted the fecked crankpin in Chris' pic, so I claim whatever prize he's offering Quote Link to comment Share on other sites More sharing options...
Alex Posted October 5, 2005 Share Posted October 5, 2005 The words "pre war" are in the Goodyear sign behind....could it be that old? Quote Link to comment Share on other sites More sharing options...
tbourner Posted October 5, 2005 Share Posted October 5, 2005 Don't know, found it on Google, the file name says it's a 1936 Alfa Romeo Bimotore though. Quote Link to comment Share on other sites More sharing options...
Digsy Posted October 5, 2005 Share Posted October 5, 2005 According to this it's out of an inline 8 (one of two in each car ) Now, that's a crappy engine configuration for crankshaft stiffness, especially if you don't have a bearing in between each thow. However, since they have put two adjacent throws right nex to each other with no bearing in between, the two opposing reciprocating masses might be close enough to cancel each other out effectively. If this works, then there would be no need for counterbalance masses on the crankshaft, which that crank does not have. But why??? Long cranks suffer badly from torsional vibrations - the crankshaft acts like a big watch spring. The mass that effectively fixes one end of this spring is the flywheel. The flywheel (traditionally at the gearbox end) rotates at a more or less constant velocity whereas the rest of the crank pings back and forth, lurching around in finite spurts of torque as each piston goes through its power stroke. This sets up vibrations in the crank that get worse the longer the crank is. Maybe if you aren't too bothered about perfect primary balance so you don't need counterbalance masses on the crank (or can use two adjacent pistons to do the job) then maybe you can distribute your flywheel inertia evenly along the crankshaft? In that way, it is possible that the long cran kmight be split up into a series of smaller cranks that wpuld tend to revolve at a more even velocity (i.e. less vibration) as a whole. Hmmmm... Method in their madness after all, methinks BTW - on closer inspection, the crnkpins are all the same length. It was just perspective. Quote Link to comment Share on other sites More sharing options...
Bobbeh Posted October 5, 2005 Share Posted October 5, 2005 Cool pic of the Bimmer engine, the one I saw at the Ring had oil and all sorts of shit pouring out of it Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.