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Old 05-13-2005, 09:07 PM
TheFrog TheFrog is offline
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Engine Designs

Here is the new thread I promised,

What about a different non-metallic substance for making piston rings?
Any other ideas about reducing friction or increasing efficiency in an engine?
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Old 05-15-2005, 06:41 AM
BigF350 BigF350 is offline
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adrian.erks.harris adrianerksharris
Teflon coated piston walls I believe have been done (Honda maybe???) to reduce friction.
Using High strength aluminium alloys instead of steel for rotating parts would reduce rotating weight.
New bearing designs. The hydramatic bearings used currently are fantastic for holding huge loads while taking up little space, but they aren't the most efficient.
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Old 05-22-2005, 02:46 PM
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bodabdan bodabdan is offline
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Sorry I can't elaborate in detail on these items but I have heard of a few things.

Replace bushings and traditional style engine bearings with roller bearings.

Full roller valvetrain.

Eliminate valvetrain all together by using electric solenoid operated valves.

Hollow cams and cranks.

Hypereutectic pistons and coated piston skirts

Variable valvetrain timing.

"looser" machining tolerances.
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Old 05-22-2005, 02:46 PM
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