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Re: Interest in Supercharger setup
It needs a relief valve because the radiator pushes water and steam in it as the car warms up. If the cap is sealed tight it will cause pressure in the overflow and not allow the hot coolant/steam to enter. The pressure must escape somewhere and could cause hoses to burst, leaks in the radiator, or blow cap off of over flow tank. It really depends on how much pressure is in the system though. If there is no pressure in the overflow tank it could cause all the coolant to flow out from radiator and coolant hoses into the tank (ie removing the cap when engine is warm). The system must be pressurized and create an adequate equilibrium depending on operating temp and pressures.
I'm sure the WR tank has some sort of relief in it. Perhaps on the cap like older radiators?
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1999 Laser Red MTX
14.509 1/4 2.265 60'
2002 3L with SVT UIM, SVT LIM no secondaries, SVT Cams, SVT TB, 24# injectors, WR Headers & y-pipe, AEM Intake, SVT Clutch, Fidanza flywheel, Clevite rod bearings, ST200 valve springs, Underdrive pulleys, Escape oil pan, DMD, Magnecor KV85 Comp Wires, Polished timing cover-valve covers-MAF-TStat, Torsen LSD, Focus shift tower & forks, RP syncromax, SVT ECU, SCT Flip Chip, B&M Shifter, OMP FSTB, Mirko RSTB, Roush RSB, Roush Floor Mats, 2.5" Trubendz
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