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The O4 Racer is a project conceived a few years ago as a test bed for new parts and ideas. This project will be a constant refinement of materials, knowledge and new parts to achieve nothing more than durability and speed. It has been my intention to utilize the high tech materials, light weight and one off, in combination to assemble a light and fast Henderson Racer that I call the O4 Racer. One goal for the worlds fastest Henderson will be to break the old Ace record. | |
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These aluminum cylinders are among the first parts for the O4 racer. They are made from A356 aluminum, heat treated to T-6 and are an experimental version of the old cast iron factory originals. A complete set weighs 25 pounds less than originals. There are currently 2 sets made. One set is destined for the O4 racer and the other set to be installed in a customers engine for testing. These cylinders do not have a press fit liner but have the bores coated with NiCaSil. They should dissipate large amounts of engine heat for a cooler running motor and with the NiCaSil bore coatings there will be no need to ever rebore these. The only future maintenance will be ring replacement. With the exhaust ports enlarged and polished and higher compression ratio due to a change in the combustion chamber these cylinders just may prove to be the best way to go when replacing cylinders. |
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