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Has anyone used a water outlet restrictor plate instead of a thermostat?
Car is running hotter than we'd like & someone suggested using
one of these.Also,is there a certain diameter hole that should be used? I believe they come in 5/8",3/4" & 1.00"
Any info would be greatly appreciated!!!

Thanks...Bill
 

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i made my own. used a 7/8" first and car ran around 200*. down to a 1/2" now and car never went over 175* at Cecil yesterday. it was around 88-90* and humid all afternoon
 

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i used the blue one i think my car doesnt run over 170 i used the middle restrictor. with a mezzerie water pump and aluminum radiator. with a spal 2400cfm electric fan. sbc. even on a 15 mile cruise on a 93* day my car didnt get over 170 degrees.
 
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