Need some help on pulley sizing

daddio4048 said

Wouldn't ring gap cause overheating at idle & driving ? My issue is at idle; not driving. My temp runs around 190 on the road; but creeps up in traffic.You have to remember that I live in South Georgia where heat & humidity are brutal.

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on the most basic of terms you have a problem with water flow or air flow (or both), or your radiator is inadequately sized.

so maybe it's a little bit of all three converging into a perfect nexus of overheating.

and what's overheating? stock gauge is pegged up hot? aftermarket gauge is reading 210? it's boiling over and puking its guts out?

so to circle it back: radiator 1st, is it sufficient? pump, does it provide adequate flow? fan, does it move enough air?

then you have all the secondary items: thermostatic clutch, shroud, distance of fan to radiator, opening for the radiator, thermostat, pulley selection, tune. but here's the deal, none, and i mean none of that matters if you have a crap radiator in there.