Upgrading Valve Springs Jay s Tech Tips 23
The black nitride layer reduces this power loss due to less valve-guide friction. Supertech valves 85lb dual springs ti retainers for honda civic si b16 b16a2 valve seat surface is harder with the nitride layer, lasting longer with lead free fuels, alcohols, nitro or other explosive mixes.
The black nitride layer reduces this power loss due to less valve-guide friction. Supertech valves 85lb dual springs ti retainers for honda civic si b16 b16a2 valve seat surface is harder with the nitride layer, lasting longer with lead free fuels, alcohols, nitro or other explosive mixes.