L92 bearing clearences
05-05-2016, 09:19 PM
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L92 bearing clearences Hi I am re building my L92, I plan on just doing a mild cam, anyways by main and rod bearing clearence is .002 which is consistent on all bearings, anyways do you think I should tighten up clearences on rods with a calico coating? The engine is pretty much a sticker
05-06-2016, 04:12 PM
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Yeah I thought to go tighter on rods haha, it's a pretty much a sticker with mild cam, I am doing all forged internals, because I am going to supercharge it, with very low boost and probably water/meth injection to prevent detonation
05-06-2016, 06:16 PM
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Thanks
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05-06-2016, 06:19 PM
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05-06-2016, 07:05 PM
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On something like this, I would set the mains and rods at about .003" and have the bearings coated by PolyDyne here in Houston. The coating drops the clearance down to about .002". Most power adders on "low boost" rarely ever stay on low boost. When that bug hits you and you swap the pulleys for more manifold pressure, the coating can be sacrificed without hurting the engine when more clearance is needed for the higher power level.