alanoo Vocky showed us the way, Vocky is the prophet, we'll follow Vocky ! WE NEED some wasted stem valves OE size 😃 I'm mailing Karo from carcustoms.net to see if he has a solution for us (he already has some cheap +1mm ones) :evil:
vocky try emailing http://www.sivalves.com they supplied my +1mm items and I'm sure they could make some standard size valves dunno..
alanoo Just got a reply from Karo I do have +1mm valves AND stock size valves I don’t know why the stock size not showing up on the website… same price tho… http://www.carcustoms.net/product_info. ... cts_id=281 Cheap ones too 🙂
alanoo winstar said: Could you not just turn down the OE ones on a lathe? Well personally I won't take the risk with the 7600 rpm and 12mm valve lift I'll have :?
winstar alanoo said: winstar said: Could you not just turn down the OE ones on a lathe? Well personally I won't take the risk with the 7600 rpm and 12mm valve lift I'll have :? I wouldn't for 7600rpm, what crank are you going to use for that speed? but I'm sure I could knock up a model to have a look at the stress levels for more modest engine speeds. Vocky don't suppose you've got a std valve floating around you can measure up?
vocky simple answer is the standard valves cannot be machined down 🙁 vastly different shape, which is why the gains are so good 🙂
vocky alanoo said: Just got a reply from Karo I do have +1mm valves AND stock size valves I don’t know why the stock size not showing up on the website… same price tho… http://www.carcustoms.net/product_info. ... cts_id=281 Cheap ones too 🙂 they are quite cheap, just make sure they send standard size valves cheers..
alanoo winstar said: I wouldn't for 7600rpm, what crank are you going to use for that speed? but I'm sure I could knock up a model to have a look at the stress levels for more modest engine speeds. Lightened and balanced OE one. Should be ok upto 7900 rpm, but will remain at a safer 7600 rpm limit
alanoo vocky ? I remember seeing a piccy of your head with valves fitted (a view from the intake side), but couldn't find it anymore Any help for me ? Just to illustrate how the intake side looks with this kind of valves 🙂
alanoo vocky said: alanoo said: Just got a reply from Karo I do have +1mm valves AND stock size valves I don’t know why the stock size not showing up on the website… same price tho… http://www.carcustoms.net/product_info. ... cts_id=281 Cheap ones too 🙂 they are quite cheap, just make sure they send standard size valves cheers.. Got some more info, and they are NOT undercut stem for the stock size ones. Will look elsewhere !
vocky alanoo said: vocky ? I remember seeing a piccy of your head with valves fitted (a view from the intake side), but couldn't find it anymore Any help for me ? Just to illustrate how the intake side looks with this kind of valves 🙂 these are the valves can't seem to find the head pic, but do remember it notsure.gif
alanoo Yep remember too, that was sexy I think it was on vx220.org but can't find it anymore too... Just mailed sivalves about OE sized valves, waiting for a reply 🙂
slindborg I assume they are wasted? are the exhaust stainless steel or inconel (like the ferrea valves but not wasted))
alanoo Yep Stainless steel I doubt you will find wasted stem Inconel valves, because Inconel valves are specially made for boosted applications, and boost + wasted stem is not a big love dunno..
slindborg wasted exhausts are "ok" but wasted inlets are bad on a boosted app. anyhoooo $13 a valve is pretty good for wasteds 😃 might be worth buying a few sets
vocky alanoo said: Wonder if this wasn't the piccy ? that's a Courtenay stage 1 with standard valves :roll: these are my stage 3 inspired inlets 😃
