Chris and Dave, you need to troll back through the previous incarnation of events. Stop hanging out in the general chat section. This is a "cracking" thread by the way.
IIRC, vibration dampers are designed so that the crank thinks there is a weight stuck out in front of the crank. At first thought, I assumed it would only effect vibrations at 90 deg to the axis of the crank. Now I think it will also work axially as well, cos, it is free to moved in both planes!
i'm starting to get worried reading this, tsr sold me a eurospec flywheel last year and the engine's been vibrating a bit lately. i'm guessing some quite bad things would happen if the fly let go under full power? are we talking stitches crutches or wooden boxes here?
you might want to look at this you are not the only one to have had a Eurospec flywheel let go http://forums.fourtitude.com/zerothread?id=4501028
Wow. Throw the guys a link tbh. If I were running a Eurospec flywheel, I get it straight off the car asap. When I say above 'bent crank & rods', I've seen two, first hand. Has the potential to cause the huge damage you see, but the inertia drop will write off the bottom end regardless. If you've got money in your engine, it'll absolutely destroy your investment. Don't risk it.
I am fairly sure Eurospec will be aware of these failures now with the various correspondence they will have had from certain parties. Does not look like the bolts were slack on the vortex pics though but it has bust in the same place. Are people putting in mega strong clutches to cope with the power, and thus needing large loads to release the clutch? They appear to be cast rather than billet steel to my old eyes, so sourcing a billet one may be the best way forward for anyone looking to buy in the future. Edit. x2 mushy
cosmic. just cosmic. do they not design these things properly or what? iirc they are cast yes, with the starter ring being steel. i vaguely remember the bloke at tsr saying something about how they changed the design from two-piece to one-piece at some point? not sure it was a while ago.
Eurospec do make a lot of stuff: cranks & 8-valve heads notably (in my recollection). Something appears to be up with the quality of those flywheel castings.
seems amazing, that many failures all from the same brand of uprated item. whats the 'benifit' of these? a lightened unit pre built ready to use? Billet item for the shopping list?
Yep, these are just an off-shelf version of what can be machined down from OEM, evidently using some ropey casting design (not thick enough?) or shoddy metal. OEM ones can be down to 6.5kgs, and they work fine.
Is the market for them there as folk do not use the dual mass ones and the supply of ABF style is limited?
yes chris but eurospec do this as part of a clutch kit http://www.eurospecsport.com/products/clutches/clutch-flywheel.htm
