Which Radiator?

[krayton]

Im going to be getting a new radiator for my RB swap. Wondering which radiator between the one built for a KA or one for the SR?

Looks like Ill be going with the Koyo and it seems they only make it for the S14 SR. But if I were to go with Fluidyne, I'd get a choice.

So does it really matter which engine I get it for?

[Joe]

just get a koyo.they own.

[cnichols]

I just got my Fluidyne...it's gorgeous. But I've seen Koyos as well....I would get the Fluidyne made for the KA...I believe the hose fitment will be easier.

[krayton]

The prices Im finding Fluidyne are about $100 more then the koyos. Is it just different outlets that makes the ka and sr radiators different?

[cyris3d]

i was using the Stock KA radiator and my RB was gettting really hot.. upgraded to a dul core one.. and still hot around 210-230..

[krayton]

Cyris, what kind of fans are you using? I was a little worried about heat because im over here in the blistering desert. Hoping the koyo and some electric fans will take care of it though.

[cyris3d]

im using the BiG Fan off the R33 Clip.. at the moment.. its more than half the size of the radiator..Im gonna try a dual fan setup tomorrow.. i had to drive home tonite with the heater on.. that kept it around 205-210.. yea it sux being in the heat.. DRY Vegas HEAT! boooo

[hashiriya13]

I have the Koyo with a 14 and 12 inch fan set up. When running at 75-80 it holds about 180-195 when put under a harder load like a hill it hits 210. The problem I see is airflow, with the big frontmount and small opening in the front lies the problem. Another is the stock thermostat opening at 76 C like 180 -195 whatever it is. I am researching a cooler replacement thermostat that we can get here in the states which should help some. In cooler outside temps like morning or evening mine runs at 180 or a little under. But yesterday on the way to La with the outside temp at some points at 96 my my temp never went over 210.

[krayton]

thanks for the info hashiriya. do you have any pics of the location of your fans? just curious at where they are. also, do you have a ac condenser jammed in there too? thanks again

[hashiriya13]

No pics yet and no A/C. The fans are mouted both in the front of the Radiator pushing. But I may move the 12" to the rear and have one pushig and one pulling and try that setup.

[Bryson]

crysid if your motor is really thrashed thru venus maybe something is physically wrong which is causing the heat.. I think a cracked head will do that won't it guys? a waterpump with a worn bearing would too. I'm sure a blown head gasket would too

[krayton]

hashiriya, do you think that 2 14" fans would fit? (in front of the rad.) or is that why you went with one 12 one 14?

[hashiriya13]

The only way you could use the two large fans would be 1 front and 1 rear. My setup left the 12" a little bit off the side of the radiator. It also depends how far forward your motor is. due to the depth of the fan it may fit in the front.