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PoorMans180SX
What would you recommend for oil for a trackday 350-400WHP SR20VET that sees temp swings (trackday temp swings) from 30-40F Ambient to circa 100F ambient. Clearances for the mains and rods are standard SR20 spec. Ring clearances are slightly larger than SR20 specs.
4-5 20 min lapping sessions a day per event.
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