Hot Rockers?
Thread Starter
Le Mans Master
Joined: Aug 2000
Posts: 6,273
Likes: 14
From: Austin TX
Hot Rockers?
No, this is not a 50s rock and roll band........
Anyone tried these variable valve timing rockers? Looks like an interesting concept.
http://www.hotrocker.com
[Modified by flynhi, 7:43 AM 7/9/2003]
Anyone tried these variable valve timing rockers? Looks like an interesting concept.
http://www.hotrocker.com
[Modified by flynhi, 7:43 AM 7/9/2003]
Pro
Joined: Dec 2001
Posts: 708
Likes: 0
From: Renton Wa
Re: Hot Rockers? (bill mcdonald)
yeah, the link does not work, But I think I know what your talking about. ratio can vary from 1.2-1.8 all from the drivers seat or automatically. the pivot point on the rockers is like a sea shell and is controlled by a motor that sits on top of the valve cover and a chain that connects to a shaft that runs as the pivot point through them all. "like a rail style rocker". the motor rotates the shaft to different points on the shell, giving it greater ratios. Last I heard they enter one of the engine building contest with this installed, pulled some impressive numbers for their build condition. But something "else" went wrong and they never finished.
Pro
Joined: Oct 2001
Posts: 621
Likes: 1
Re: Hot Rockers? (flynhi)
You are looking increasingly like someone trying to sell these things, rather than someone looking for information...
Anyway, notice on their "test results" page that they give you a table of HP/torque vs. RPM for four fixed ratios. They don't even give you a result of a dyno pull with the Hotrocker changing ratios during the pull! How is anyone supposed to know if it really provides any benefit at all from this, other than easy adjustability?
If the invention really gives you the best of each of those curves at every RPM point, then publish a result showing it!
Interesting concept, been around at least a few years. Never seen one in use, and can't believe they still haven't published a variable-ratio dyno pull.
Anyway, notice on their "test results" page that they give you a table of HP/torque vs. RPM for four fixed ratios. They don't even give you a result of a dyno pull with the Hotrocker changing ratios during the pull! How is anyone supposed to know if it really provides any benefit at all from this, other than easy adjustability?
If the invention really gives you the best of each of those curves at every RPM point, then publish a result showing it!
Interesting concept, been around at least a few years. Never seen one in use, and can't believe they still haven't published a variable-ratio dyno pull.
