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Which Corrected Geometry Support Plates Would You Use?

  • Baisley

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Discussion Starter #1
If you had the choice of Baisley Corrected Geometry Support Plates or the Woods Corrected Geometry support plates which one would you take? Why or why not? If neither, then which one would you use? Application is for a 117CI-124CI power house. Thoughts?
 

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Either.

If I understand correctly (and that may be pushing the envelope a bit...lol) these plates will help center the pushrod in the center of the pushrod tube to prevent rubbing. But to truly "correct the geometry" requires more than this, it requires setting valve protrusion, spring height, and probably several other "buzzwords" even I couldn't explain.

Baisley explains it better on his site but it involves setting up the valvetrain so that at mid-lift of the cam the rocker is at 90 degrees to the valve stem. This reduces side-loading of the valve (longer life of the guides I would think). Obviously Baisley can do it but there are several good head porters that are capable of this process (WFO Larry and Don Dorfman at Dewey's are the first two that come to mind).
 

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Either.

If I understand correctly (and that may be pushing the envelope a bit...lol) these plates will help center the pushrod in the center of the pushrod tube to prevent rubbing. But to truly "correct the geometry" requires more than this, it requires setting valve protrusion, spring height, and probably several other "buzzwords" even I couldn't explain.

Baisley explains it better on his site but it involves setting up the valvetrain so that at mid-lift of the cam the rocker is at 90 degrees to the valve stem. This reduces side-loading of the valve (longer life of the guides I would think). Obviously Baisley can do it but there are several good head porters that are capable of this process (WFO Larry and Don Dorfman at Dewey's are the first two that come to mind).

John @ Torque Inc is another head porter that would be a choice to consider
 

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Then there is the answer that you possibly dont really need this at all. If it was such a problem/concern wouldnt S&S, Jim's etc have already addressed it. When I have bought my S&S motor they recommended the HD plate. /shrug

Might want to add to the poll to not need one.
 

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Unbalanced took the words out of my mouth.
We have used Del West valve blanks, machining to the dedicated lengths etc, with lash caps to set up various engines over the years, but for a street engine? No.
Scott
 
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with 99% of street motors theres no reason to worry about it,when your getting into the .675+lift area is when it starts coming into play.our gas drag bikes where running close to .900 lift cams & correcting geomitry was a big part of motor set up
 

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Discussion Starter #7
with 99% of street motors theres no reason to worry about it,when your getting into the .675+lift area is when it starts coming into play.our gas drag bikes where running close to .900 lift cams & correcting geomitry was a big part of motor set up
Thank You for actually answering that. :cool:
 
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