Copper koyo rad?

[ApexDrift]

so just wondering if the theres any cooling difference between the aluminum koyo rad and the copper koyo rad? is there a higher possibiliy of heat soaking?...

[ALEXTHESUS*PECT]

copper actully disperses heat better, but comes in stock replacement sizes. the aluminum one is 3 times the sizes, therfore ha a much larger cooling area. i would say for track go aluminum. for just dd stay with copper. there is a reason that alomost all oems have copper rads. unless something else breaks, like a thermostat or water pump, most eoms cars never overheat.

[ApexDrift]

the perfect answer!

thanks!

[tt99ol]

you could also find a sprint car radiator that will fit
they are copper and thick you just have to make mounting brackets for them
they are cold as ice

[floodo1]

tons of circle track (paved or dirt) (late model or sprint or what have you) actually fit in 240's, the radiator spot is pretty big really

[g6civcx]

copper actully disperses heat better

Are you sure?

Will the same size copper radiator cool as well as an aluminium one?


I personally prefer copper for durability. It's very eas to damage aluminium rads.

[gotta240]

Yes. Copper ownes alluminum in every way.

[tt99ol]

its true copper has better heat transfer properties than aluminum but aluminum is lighter and looks better, in fact most real race teams in japan use copper for all their coolers, aluminum is for show over there, just look at the yashio factory radiators well the good ones at least

[gotta240]

Are all yashio rads copper? I had one and i thought it was alluminum, but not positive.

[The ROMAN]

I've been running that copper Koyo for around 2 years now and it works great (with the oem shroud and fan on SR). Drifting the car hits 80C (176F) and dives to 50-60 (122-140F) as soon as I stop. I typically keep the defroster going some during tracking, though. Daily driving I think it was 60 or so (haven't driven it on the street in awhile).

[ALEXTHESUS*PECT]

they made both i think.

[tt99ol]

Are all yashio rads copper? I had one and i thought it was alluminum, but not positive.

no not all of them are copper
but the super 840 uses the copper one
its as big as the koyos but its copper and expensive

[Grenade180sx]

someone did a big review on quite a few rads.

including the copper and alum koyo's along with griffins and OEM

imma try to find the link. but i know some one on here has to have it.

they concluded that the copper with electric fans was the best bang for the buck( if i recall)

[Sileighty_85]

Koyo Aluminum FTW
http://i73.photobucket.com/albums/i235/Neil_85/VFSH1376.jpg

[mifesto]

copper by nature of the metal is better at dissipating heat then aluminum. regardless aluminum is easier to make a more efficient radiator design(more surface area); better design more then makes up for it at a slightly higher cost.

[zavala]

lol just watch out for the meth-heads! they love to steal copper to trade in for money for a quick fix. and they have no limits from cars to the ac unit on the side of your house. (here in tenn ALL of the copper radiators in almost EVERY junkyard is gone, shows how much of a problem we have here.)

[shinhed]

copper by nature of the metal is better at dissipating heat then aluminum. regardless aluminum is easier to make a more efficient radiator design(more surface area); better design more then makes up for it at a slightly higher cost.
In a class I was thought copper absorbs/retains more heat than the aluminum but, also making it harder to dissipate the heat.
Aluminum ftw.

[gotta240]

No. Aluminum FTL. Do research bud.

[Mr. Camshaft]

Thermal conductivity for copper is much higher than aluminum at any given temperature.

http://www.engineeringtoolbox.com/thermal-conductivity-d_429.html

[DJ_Sunrise]

In jersey we are seeing a big problem with houses being broken into and piping being stolen. Happens sooo much over here hahaha. I'd buy an aluminum rad only because I don't want anyone stealing it. Whats wrong with oem radiators? I have my JDM SR radiator and fan. Temp has never gone over 88C, even in 20-30 minute runs.. OEM thermostat, 15lbs of boost.. over 310whp on stock t28. What's all the jive for a radiator? I get it. Bling bling factor. In stead of buying shit that makes a car faster or handle better, kids wanna make their shit shiny!!!! Understandable.


Bart

[The ROMAN]

That's the impression I get. Plenty of guys run the aluminum rad and electric fan combo and overheat every 10 minutes, and then ask me what my setup is.

I don't know about NJ pipe thieves though.

[Sileighty_85]

That's the impression I get. Plenty of guys run the aluminum rad and electric fan combo and overheat every 10 minutes, and then ask me what my setup is.

That weird they must be doing somthing wrong then.
I run a Koyo Aluminum Rad. with a Nismo thermo and a single Kia Fan
My temp never Rises above 68* C with the A/C it maybe goes 74*C

before with my stock set up it was 88* to 92* C

[g6civcx]

In a class I was thought copper absorbs/retains more heat than the aluminum but, also making it harder to dissipate the heat.
Aluminum ftw.

I was taught this as well in vocational training.

Aluminium cools better, but is more expensive and brittle. Copper doesn't cool as well, but is more rugged and cheaper.

I haven't done any testing so I wouldn't know, but this is what I was taught.

[xplicit240]

well coppers thermal conductivity is higher than aluminums which it makes it more ideal for cooling. By absorbing more heat from the fluid it can dissipate and expose the heat to the cooling surface.

this can be seen a lot in computer heat sinks. but this just me watching too much science channel.

"A few of you may be thinking that copper is a better conductor of heat than aluminum, so why would we switch to an aluminum radiator? The fact is that copper is indeed a better conductor of heat, but the other components in a copper/brass/lead radiator minimize its overall effectiveness and actually make an aluminum radiator much more efficient."


taken from ( http://www.radiators.com/news-radiator_cools.html )

Because no one makes a full copper set up. thats where the loss of cooling takes effect. vs an all aluminum radiator.

i guess it comes down to the design of the radiator. and how much air is hitting it.

[tt99ol]

someone did a big review on quite a few rads.

including the copper and alum koyo's along with griffins and OEM

imma try to find the link. but i know some one on here has to have it.

they concluded that the copper with electric fans was the best bang for the buck( if i recall)

http://home.satx.rr.com/nissanweb/RadTest/RadTest.htm
there you go man

[ApexDrift]

thank you for the link!