i have a built b16a2 motor boosted redid motor top 2 bottom but radiator hose swells up like a beast fans turn on fine temp is fine but for some reason the hose seams 2 inflame what could be the cause of this there is no thermostate in it could it just be the hose im curently using a autozone hose reinforced maybe its just time 2 switch whts ur opinon use 2 blow headgaskets left and right o ring the block and put the new l-19 type head studs from race enginering so far so gd thnks for da input

 

does it swell all the time or just when you boost?

 

swells all the time

 

then its prob just the hose lol I ran no thermo for 5yrs back in the day so its not that.

 

Bad radiator cap?

Excess coolant system pressure could cause the hose to swell.