Titanium valves

Dr_C · Apr 9, 2007

Cheers all!
Where do you recommend me to buy titanium valves? Kibblewhite seems like the obvious alternative, but I would appreciate any other ideas as the swedish importer is less fun to work with. IÃ‚Â´m looking for 40mm intake valves with 6mm stem, if possible.

Thanks!

swedishsteel · Apr 9, 2007

Hallo. Ferrea have Titanium blanks see page 121 at http://www.ferrea.com/catalog/2006Moto.pdf
skall vara jÃƒÂ¤kligt bra grejor!pris i sverige 1250riksdaler styck hos ultramotor
http://www.ultramotors.se/ventilamnen_pris.pdf
regards

Dr_C · Apr 9, 2007

Thanks! IÃ‚Â´ve found a couple of companies. Now itÃ‚Â´s up to their delivery time... Broke a valve at the dyno this morning = expensive (piston, seats, valves, guides, sleeve, rod).

LINEAWEAVER · Apr 9, 2007

kibblewhite or Del-West.

Ferrea you must use a lash cap and have the valve treated with Casidium lest they last only a few hours.

Unless you plan on 10,000 RPM plus and using an OE camshaft Ti is not necessary.

Dale

Dr_C · Apr 9, 2007

Hello Dale!
I thought youÃ‚Â´d allways need either a lash cap or a steel tip when using Ti-valves?

I saw signs of valve bounce on the tips of my stainless 40mm intake valves (fitting a Porsche GT3). The engine wouldnÃ‚Â´t rev much further than 8500rpm and the power was fluctuating from 8k and up. The OEM-springs were new and IÃ‚Â´m using the #62-cam. So I ground the valves to reduce the weight, with an clear negative impact on life length... So here I am, thinking Ti-valves are the only possible solution... Any help in this trouble-shooting is much appreciated.

The last time I tried Ti-valves, they lasted almost a whole... weekend.

LINEAWEAVER · Apr 9, 2007

Del-West valves are used by Factory KTM and Husaberg. Said valves feature a steel tip insert, Casidium face and "BIG" price tag.

Kibblewhite valves have a Stellite tip.

Reducing valve rates via the camshaft will allow 37 mm SS Intakes to see 10,500 RPM with a low pressure dual spring kit.

Hope this helps.

Dale

Taffy · Apr 9, 2007

what the fine gentleman means is that: get5 a good camshaft vin there with mild/nice lift speeds - you don't need ti you can use stainless steel and buy from his ol mucker - mr kibblewaite and you'll still see all the revs your engine will ever want.

less bullshyte and bling. money still in the ol racing budget for the next expensive toy.

regards

Taffy

Dr_C · Apr 10, 2007

Taffy said:
what the fine gentleman means is that: get5 a good camshaft vin there with mild/nice lift speeds - you don't need ti you can use stainless steel and buy from his ol mucker - mr kibblewaite and you'll still see all the revs your engine will ever want.

less bullshyte and bling. money still in the ol racing budget for the next expensive toy.

regards

Taffy

I heard it the first time and I agree totally! My repositioned valves called for new rockers with larger ratio = 1,5 mm increased max lift. That makes of course harsh ramping even worse. IÃ‚Â´ll look deeper into the cam profile issue. Thanks for the concern about my racing budget, Taffy! Send me a sticker to put on the bike, there is plenty of advertising space...

Titanium valves

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