I have a 93 civic with a 95z6 turbo motor...uhmm.. i have problems with my radiator..... when i drive pass 80mph(or really fast) my radiator catch tank fills up and sprays out all over the place...when i'm driving the temp gauge doesn't go up.. my car doesn't over heat at all..sometimes i see steam and hear bubbles coming out of the catch tank, but my car isn't over heating.. Can someone tell me what the **** is going on... the only thing i can think of that is causing this is the honda radiator cap... It wouldn't fit on my pwr radiator so i had to bend the sides a bit..

*93 civic ex
*95 z6 motor (60,000miles)
*greddy turbo & intercooler
*greddy turbo timer
*greddy fmu
*msd 6a ignition
*msd spark plug wires
*msd distributor cap
*msd blaster coil 3
*zex turbo/nos spark plugs
*b&m short shifter
*b&m fuel pressure regulator &gauge
*thermal tech heat wrap
*thermal turbo exhaust system
*pwr aluminum radiator
*red fal fan
*str fuel fail
*missing link map bypass valve
*blitz blow-off valve
*field boxer sfc vtec controller
*auto meter gauges (air/fuel, oil press., boost)

 

try a new radiator cap and thermostat

 

what radiator cap did you use? the stock one wouldnt fit on my PWR, i had to use the crx radiator cap i think it is a different size or something

 

i've got a new thermostat when i switch out my stock radiator... i'm stilll using my stock civic radiator cap.... so..would a spoon radiator cap do anything to it ... like 1.3pressure.. so a crx radiator cap would fit.. but i thought they are all the same..