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techtalk:ref:svcproc26 [2020/03/04 05:56] hippysmack [Buell XB/04XL Heads] |
techtalk:ref:svcproc26 [2020/03/04 05:59] hippysmack [Thunderstorm Heads] |
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| But the way it's done in the Thunderstorm, it's really rough. Since it's cast in, it's uneven. \\ | But the way it's done in the Thunderstorm, it's really rough. Since it's cast in, it's uneven. \\ | ||
| Typically from the factory the clearance is .050" or more, and that makes the squish band largely ineffective anyway. \\ | Typically from the factory the clearance is .050" or more, and that makes the squish band largely ineffective anyway. \\ | ||
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| - | {{:techtalk:ref:svcproc:thunderstom_chamber_by_aswracing.jpg?direct&300|}} ((photo by aswracing of the XLFORUM http://xlforum.net/forums/showthread.php?t=2206)) \\ | ||
| Thunderstorm heads are obsolete now. \\ | Thunderstorm heads are obsolete now. \\ | ||
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| So to machine it, typically .035"-.045" had to be taken off the deck, sometimes more. \\ | So to machine it, typically .035"-.045" had to be taken off the deck, sometimes more. \\ | ||
| - | Below is an example after machining. This is much better with a nice even and consistent squish clearance. \\ | + | Below is an example of before and after machining. This is much better with a nice even and consistent squish clearance. \\ |
| But cutting the deck this much has some side effects, like less valve to piston clearance. \\ | But cutting the deck this much has some side effects, like less valve to piston clearance. \\ | ||
| As well as potentially forcing the customer into short or adjustable pushrods. \\ | As well as potentially forcing the customer into short or adjustable pushrods. \\ | ||
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| Anything higher than that and the dome goes past the squish band. \\ | Anything higher than that and the dome goes past the squish band. \\ | ||
| - | {{:techtalk:ref:svcproc:thunderstorm_as_machined_by_aswracing.jpg?direct&300|}} ((photo by aswracing of the XLFORUM http://xlforum.net/forums/showthread.php?t=2206)) \\ | + | | Stock Thunderstorm Heads ((photo by aswracing of the XLFORUM http://xlforum.net/forums/showthread.php?t=2206)) | Thunderstorms as Machined ((photo by aswracing of the XLFORUM http://xlforum.net/forums/showthread.php?t=2206)) | |
| + | |{{:techtalk:ref:svcproc:thunderstom_chamber_by_aswracing.jpg?direct&300|}}|{{:techtalk:ref:svcproc:thunderstorm_as_machined_by_aswracing.jpg?direct&300|}}| | ||
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| ====== Buell XB/04XL Heads ====== | ====== Buell XB/04XL Heads ====== | ||
