ihavetwins

iTrader: (5)

i have been deciding these last couple of weeks weather i should get a koyo or a fluidine radiator. from what i understand the koyo has fitment problems because of its size and thats a good thing i think and the fluidine i have no knowledge on but im not sure if its bigger or smaller any way i was wondering what radiator(s) are recomended because i need help on what im gonna get i dont want to get a expensive crapy radiator. thanks

FallenCho

iTrader: (1)

From personal experience I can tell you the Fluidyne is an awesome radiator and fits like a charm. The Koyo has a bigger core but like you said it has fitment issues. In reality either one you choose will do exactly the same thing so it's really a matter of whether you want that perfect fit or not.

caredden

iTrader: (148)

I have had my fluidyne for about 15 months now and I have had no problems.

RX7 8U

iTrader: (1)

With Fluidyne my stock air box pinched down on the radiator hose. After several overheats I discovered it. Lesson: If you're using the stock airbox make damn sure the hose underneath the airbox isn't getting pinched. I had to leave my airbox on loose then temps were fine but it was too late, engine blew a seal soon after.

FallenCho

iTrader: (1)

That airbox problem is true but I had switch my intake out anyways so no big deal. So yeah I guess that's one fitment issue as far as the Fluidyne gos.

RX7 8U

iTrader: (1)

The rest of the story:

https://www.rx7club.com/showthread.p...light=fluidyne

GUITARJUNKIE28

koyos suck because no 2 are exactly the same.
they work fine if you can shoehorn them in, though.

John Magnuson

Interesting... maybe that's why I had no fitment problems at all with the Koyo. Just got lucky I guess.

GUITARJUNKIE28

i've only done one in an fd, but like 6 or 7 in fc's and only 2 of them fit right.

Heisenberg

iTrader: (3)

I just got the large race aluminum radiator from radiatorworld.com. Thing is really big and seems hard to beat for the price. I dont have any experience with koyo or fluidyne so i cant compare the quality but for the price im not complaining. Are you putting it back into the stock location or are you using a fmic??

GUITARJUNKIE28

i just got a fluidyne 2-pass to replace my afco because it was too damn big. LOL

$180 shipped from e-bizzle. it's a universal so i gotta do the brackets myself, but whoopity doo. that's what i had to do in the first place anyway.

jeff p

get the fluidyne radiator. I use the stock airbox with Adam C airbox mod and have no problems at all. also do the Dale Clark FC fan switch mod. this combo works great!
Jeff

neit_jnf

iTrader: (17)

I've got this same one running evans at zero pressure and a miata switch. Drag, autocross and track the car as well as drive it in heavy traffic with no overheat issues whatsoever

Comet

I had very little fitment problems with the Koyo, just a little shoehorn and it was in like flynn. Kept her nice and cool too....

level7

iTrader: (3)

agreed, its not like you have to chop any metal or do any rediculous fabing to get it to fit. both radiators work great (know from personal experience) so i think the obvious question is "do you want to save yourself some money?" get the koyo.

phantom works

iTrader: (3)

I've got the fluidyne and its been great but it is more expensive then the koyo .

ihavetwins

iTrader: (5)

thanks fella's for all the imput and no im not runnin the stock air box i have the crapy apexi intake system and im thinking of waiting to put it in after my GT35r conversion.

neit_jnf

iTrader: (17)

I'd say if you want the best bang for the buck get the race version from radiatorworld.com. It's the one I have and I only had minor fitment issues that were easily resolved.

RX-7racer88

I would say go with the fluidine over the koyo. Again for the way the koyo fits and I hear is harder to set up if you should go with a front mount intercooler.

GUITARJUNKIE28

if you can do the brackets yourself, you can get a better radiator for about half the price.

PDViper77

iTrader: (9)

I had no fitment problems with my Koyo. But since my whole turbo setup is custom I had to make my own brackets. BTW its behind my FMIC.

z28_SS

I have been using the Koyo for almost a year without a problem. Fitment wasn't an issue at all.
btw your FD looks sick. Keep it stock.

GUITARJUNKIE28

if you made your own brackets, fitment issues don't count. in that respect, i didn't have any fitment issues with my afco, but then again, it's not in the stock location, so it doesn't count either.

today's operational definition of fitment: does it drop right in the stock location without any trouble? and does everything else still fit?

Alcoholic

What do you guys think of the mazdaspeed radiator?

My car's getting a new radiator and tri point wants to put on a mazdaspeed radiator but I've heard that the the koyo and fluidyne radiators are cheaper and perform better.

GUITARJUNKIE28

i think it's expensive