PPR Titanium Valves . . . Increase Flow!!

[Kiwi Rider]

Check this out, just by changing valves from standard to Titanium ( same cylinder head, no mods) a marked increase in flow is gained!

[ROADTOAD1340]

They look pretty trick and flow better by the looks , but doesn't the Gen 2 head already run titanium valves ?

[sixpack577]

Check this out, just by changing valves from standard to Titanium ( same cylinder head, no mods) a marked increase in flow is gained!

How is that possible?
I know they are lighter.
Are they able to move quicker and stay open slightly longer from weighing less?

[Kiwi Rider]

This is a complete mystery to me.
I wish they explained why the flow increases, I think I'll email them and ask that question.
There has to be some technical explanation, and you may be on to it right there sixpack re the increased speed of movement due to less mass and consequently slightly longer duration.
Hmmmmm . . . I'm gonna look further into this one.

[Kiwi Rider]

They look pretty trick and flow better by the looks , but doesn't the Gen 2 head already run titanium valves ?

This is your NEXT mod Toad!
Your Ti addiction has just been re-awakened!!

Yeah, I also thought the Gen 2 had Ti valves from the factory.

[Mathewrussell52]

Gen 2 valves are titanium. Those are shiny that has to add like 5hp.

[1busa]

Gen 2 valves are titanium. Those are shiny that has to add like 5hp.

He’s right the Gen2 came factory with Titanium Valves.

The reason I know this 100% is there was a ton of them used on Psycho Bike forum for sale. All the Gen2 guys who were spraying ditched em for Stainless Steel valves. Said there were multiple Gen2’s that blew up while spraying and builders traced it back to the Gen2 titanium valves. Guys swapped for SS and the engines ran with no problems

[ali123]

View attachment 1584880

He’s right the Gen2 came factory with Titanium Valves.

The reason I know this 100% is there was a ton of them used on Psycho Bike forum for sale. All the Gen2 guys who were spraying ditched em for Stainless Steel valves. Said there were multiple Gen2’s that blew up while spraying and builders traced it back to the Gen2 titanium valves. Guys swapped for SS and the engines ran with no problems

OR SO THE GERMANS WOULD HAVE US BELIEVE

[Kiwi Rider]

Maybe Frank from Powerhouse may be able to help here?
I can't really see how a lighter valve can increase flow, after all the valve can only follow the profile of the cam lobe, so perhaps the material has an influence on the flow? Beats me.
C'mon Frank, share some of that wealth of info you have accumulated over the years man!

[Kiwi Rider]

OR SO THE GERMANS WOULD HAVE US BELIEVE

lmao.
twisted sense of humour Ali, just like me lol.

[michael parris heuberger]

lmao.
twisted sense of humour Ali, just like me lol.

Hi. It could flow more if it had a different shape from stem to the seat. I have read that V&H has a super Ti valves that will work in a turbo motor It was said it was used in Sam Wheelers bike? I have not seen them. I am trying to call V&H to order them if they even have them. I do not beleive every thing I read.

[ali123]

Hi. It could flow more if it had a different shape from stem to the seat. I have read that V&H has a super Ti valves that will work in a turbo motor It was said it was used in Sam Wheelers bike? I have not seen them. I am trying to call V&H to order them if they even have them. I do not beleive every thing I read.

Michael... are u building this motor ureself? If ure doing headwork and cams.... im sure whoever does it has their preference,,,,

[ROADTOAD1340]

Me too on everything you read , my skepticism started from an early age reading Penthouse forum !!

[Bailey9r]

Me too on everything you read , my skepticism started from an early age reading Penthouse forum !!

Wow Toad, being able to remember what you read at age seven is amazing!!!

[Bailey9r]

Maybe Frank from Powerhouse may be able to help here?
I can't really see how a lighter valve can increase flow, after all the valve can only follow the profile of the cam lobe, so perhaps the material has an influence on the flow? Beats me.
C'mon Frank, share some of that wealth of info you have accumulated over the years man!

Kiwi; The aftermarket TI valves are thinner (thanks to the stronger material) and therefore effective opening is more like 30thou lift instead of the normally measured 50 so the effective duration of the cam is greater.
Thats my story and I'm sticking to it!

[ROADTOAD1340]

Wow Toad, being able to remember what you read at age seven is amazing!!!

Pictures helped !!

[Bailey9r]

Before you say "but but the stock valves are TI" The factory is using TI to lighten the valve to prevent float but are made to stock specks the aftermarket takes this a step farther by taking advantage of the material by making it thinner.
Also the factory has to take into acct 100000 miles duration in their needs and PPR performance is the #1 goal.

[Kiwi Rider]

Kiwi; The aftermarket TI valves are thinner (thanks to the stronger material) and therefore effective opening is more like 30thou lift instead of the normally measured 50 so the effective duration of the cam is greater.
Thats my story and I'm sticking to it!

Ok, that sounds like a story I believe and will stick to also.
Makes sense, I'll be keen to find out more from PPR, I will also get a price on these valves, gonna be high I reckon.

[Mathewrussell52]

8 CFM is that really a diff??

[ali123]

8 CFM is that really a diff??

no it isn't... but u gut guys here that treat anything titanium like KING TUTS GOLDEN UNDIES