Racerage1

ok, for awhile now my cars been overheating at idle. whenever i see a sign of my temp going up i turn my heater on and its gone. few months back, when this was going on, i changed my thermostat, flushed coolant system, bled it, and wired my radiator fan to a switch. still overheated if i did a hard run. if i drive normally, it wouldnt. i did a compression test, and it looks fine. identical numbers on all 4. what can i do now? this is really holding me back from moving further on my car so i really need your guys' help. BTW my setup: d16y8 w/ greddy turbo and intercooler @ 6psi.

m0dr0cker

Maybe you need a new radiator. Or a radiator cap.

Racerage1

i have a new cap...planning to pressure test my radiator. thanks though

anyone else?

Racerage1

ttt

Racerage1

bump

Archidictus

What year and model car do you have and what radiator are you currently running? I'm sure you know by now that the Del Sol VTEC dual core radiator can be had for $100 at any Napa and does an incredible job of cooling any setup.

B16Ek9

My friend is having the same problem with a zc engine i just swaped into it, I told him to get a spoon or mugen radiator cap, and a new - performance radiator. that might help ****. let me know what does it for you. He would iddle while stopped. If your crank pulley is fucked up, it might be holding your water pump back. Check that.

Racerage1

i have a 99 ex...so the delsol radiator would drop right in?

slammed_93_hatch

correct it will drop right in, also get a new thermo that might be it

Archidictus

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Racerage1 &raquo;</TD></TR><TR><TD CLASS="quote">i have a 99 ex...so the delsol radiator would drop right in?</TD></TR></TABLE>

Sure will. Same hoses, same rubber mount bushings, twice the cooling efficiency .

Racerage1

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by slammed_93_hatch &raquo;</TD></TR><TR><TD CLASS="quote">correct it will drop right in, also get a new thermo that might be it </TD></TR></TABLE>

but i jus replaced my thermostat...defective maybe?
thanks guys, any other suggestions?

jdmeg9

try your radiator fan. Sounds like it isn't overheating while your driving because you are getting cold air on your radiator while driving. When your sitting still you are overheating because of no air circulating. My thoughts are new fan, could just be your relay to your fan, or clogg in your coolant. You said you put a new thermostat in did you just fill it up after you replaced it or did you squeeze your lines and circulate it so you could get the air out?

solo2slocivic

perform a hydro-carbon block test you may have a blown headgasket.. the kits are avail. at most real parts store... like napa not autozone or csk stores

Racerage1

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jdmeg9 &raquo;</TD></TR><TR><TD CLASS="quote">try your radiator fan. Sounds like it isn't overheating while your driving because you are getting cold air on your radiator while driving. When your sitting still you are overheating because of no air circulating. My thoughts are new fan, could just be your relay to your fan, or clogg in your coolant. You said you put a new thermostat in did you just fill it up after you replaced it or did you squeeze your lines and circulate it so you could get the air out?</TD></TR></TABLE>

but i have my fan wired to a switch so its basically always on. fan looks fine to me, no cracks or bends on the fins. but thanks for the suggestion

Racerage1

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by solo2slocivic &raquo;</TD></TR><TR><TD CLASS="quote">perform a hydro-carbon block test you may have a blown headgasket.. the kits are avail. at most real parts store... like napa not autozone or csk stores</TD></TR></TABLE>
how much does that actually run? and what does it do? im not familiar with the block test, thanks

solo2slocivic

the block test tell you if you have combustion gasses in your cooling system... we do them when we have mysterious over heaters at the dealer we only gharge 1/2 hr labor most of the time to do it .