not nice sight to see, were you running standard valves and springs then?
No Supertech.
Little edit… 
ah that’s a shitter
I’m going with Dan’s thoughts that one of them, probably the left unseated.
Gutted for you. You’ve got the right attitude though, find the root cause and then improve it.
Hope your heads ok…and the 2ZZ head 
Excuse the ignorance Dave, I didn’t realise the NA chucked so much at it’s catch cans.
So valve bounce then contact?
Sorry Graham was trying to be funny… obviously failed!!
Also Sorry to John as this is clearly no laughing matter…I suspect that the repair bill will cost many many beers and quite a few curries.
Lol chill fella’s, I’m really in a good place with this, these things happen. I especially like Ben’s picture…just wandering if I can get that on an exiges.com t-shirt with NARocks beneath it 
yeah there is no reason to beat yourself into the ground over this stuff, doesn’t make it the situation any better just shortens your life
^^^^^^ What he said ^^^^^^^^
Yes indeed…once you start down the path you have to continue! - unfortunately it’s part of breaking new ground and development! - Look at Jamies car last year… a lot of issues, but that’s always going to be the case with anything new and unproven…
Onwards and upwards buddy ! - Stay positive!
Sorry Graham was trying to be funny… obviously failed!!
Also Sorry to John as this is clearly no laughing matter…I suspect that the repair bill will cost many many beers and quite a few curries.[/quote]
No offence taken,Mate. Hard skinned. Just don’t understand the machanics as well as you
So ,gold cam cover nuts for you?
Should find out this week, fingers crossed…
Hope its not too bad but I suspect the worst
Plan that way and things can only get better
Good Luck…
I know not a lot about engine failures… but would I be right in thinking that kind of valve failure on exhaust valves would only be caused by the valves experiencing contact with the pistons ? In which case how could having better valves have prevented it ? (I guess unless you have significantly raised the rev limit…in which case I guess the valves might not be capable of withstanding the stresses of high RPM ?
Sorry - I might be WAY off line here…just trying to learn a bit !
Bloody nightmare mate.
No Jonny, in a word, the engine shouldn’t breath that much oil at all. Do you have a return to the sump from your catch cans? If not, you should.
I would say the valves have bent like that because the rod has broke, the piston has shot up the bore and the next time the valves tried to open, the piston as still there. You wouldn’t get ‘valve bounce’ with solid lifters and the set-up Jonny was running.
My ‘GUESS’, is oil starvation, its spun a bearing which has resulted in a broken rod. The valves are just part of the aftermath. If half of your oil is doing the track day in your catch cans, then it isn’t helping with lubrication too much. Breather systems are complicated things, especially on a high revving race engine.
What is the oil return from the head like on these engines?? I’ve known a few different engine types hold oil in the head for too long, not allowing it to return to the sump. A lot of this then blows out of the breather that comes from the rocker cover. This can also be a by product of too much blow by from the pistons, which presureises the crank case and that pressure escapes any way it can and often one of the easiest, is up the oil return from the head, which means the oil doesn’t actually return, because of the wind blowing up the return path.
Just my 2p
Hope it gets sorted soon.
Arghhh crap Jonny -
Has the head actually fallen off the valve on the left ? Looks like its been flung around a bit … but the stem looks like its straight which is a bit strange ?