4 valve heads video

Discuss all things 1970 & later Airheads right here.
Post Reply
User avatar
twist
Posts: 249
Joined: Sun Jan 16, 2011 9:09 pm

4 valve heads video

Post by twist »

User avatar
vanzen
Posts: 1438
Joined: Mon Aug 09, 2010 2:29 pm
Location: Hidin' in the Hills

Re: 4 valve heads video

Post by vanzen »

That one again ? OK, then, one good redux deserves the sequel:

http://www.youtube.com/watch?v=OTxWWEud ... re=related

but wait ! there's more:

http://www.youtube.com/watch?v=xR33KfZa ... re=related

then, perhaps not so impressive as a BMW S1000RR spinning at 14k+:

http://www.youtube.com/watch?v=nsa6kq-q ... re=related
Image
Deleted User 72

Re: 4 valve heads video

Post by Deleted User 72 »

VZ - You forgot to add that if we order now, we'll get TWO for the price of one. And that operators are standing by...

What's that? Oh.
User avatar
twist
Posts: 249
Joined: Sun Jan 16, 2011 9:09 pm

Re: 4 valve heads video

Post by twist »

vanzen@rockerboxer.com wrote:That one again ? OK, then, one good redux deserves the sequel:

http://www.youtube.com/watch?v=OTxWWEud ... re=related

but wait ! there's more:

http://www.youtube.com/watch?v=xR33KfZa ... re=related

then, perhaps not so impressive as a BMW S1000RR spinning at 14k+:

http://www.youtube.com/watch?v=nsa6kq-q ... re=related
yes, very nice! Interesting that the oil mist was what seems like the mid range. I've heard of valve float on the old boxers at sustained 120 mph, non race engine. What would it take for an engine like the s10000rr?
Major Softie
Posts: 8900
Joined: Tue Aug 03, 2010 1:46 pm

Re: 4 valve heads video

Post by Major Softie »

twist wrote:I've heard of valve float on the old boxers at sustained 120 mph, non race engine. What would it take for an engine like the s10000rr?
Well, first you'd have to defeat the rev limiter that is integral to the fuel and ignition control unit. Testing just isn't as simple as it used to be...
MS - out
User avatar
mattcfish
Posts: 754
Joined: Mon Aug 02, 2010 11:18 pm

Re: 4 valve heads video

Post by mattcfish »

vanzen@rockerboxer.com wrote:That one again ? OK, then, one good redux deserves the sequel:

http://www.youtube.com/watch?v=OTxWWEud ... re=related

but wait ! there's more:

http://www.youtube.com/watch?v=xR33KfZa ... re=related

then, perhaps not so impressive as a BMW S1000RR spinning at 14k+:

http://www.youtube.com/watch?v=nsa6kq-q ... re=related
Hey, I resemble that remark!
Bellingham, WA USA
1975 BMW R90/6
1975 BMW 2002
1971 VW Westfalia
1985 VW Vanagon
http://advrider.com/index.php?threads/b ... s.1074183/
User avatar
vanzen
Posts: 1438
Joined: Mon Aug 09, 2010 2:29 pm
Location: Hidin' in the Hills

Re: 4 valve heads video

Post by vanzen »

Major Softie wrote:...Well, first you'd have to defeat the rev limiter that is integral to the fuel and ignition control unit. Testing just isn't as simple as it used to be...
Welcome to the 21st century !
Image
User avatar
twist
Posts: 249
Joined: Sun Jan 16, 2011 9:09 pm

Re: 4 valve heads video

Post by twist »

vanzen@rockerboxer.com wrote:
Major Softie wrote:...Well, first you'd have to defeat the rev limiter that is integral to the fuel and ignition control unit. Testing just isn't as simple as it used to be...
Welcome to the 21st century !
aww crap! I guess that's the reason I love the old BMW air heads, Triumphs and Nortons
Post Reply