thoughts n' comments?

TIA

 

i have the fluidyne in my n/a. In kansas city we see temps above 100 and the temp gauge has never moved above 1/2. hope that helps

 

i also have a fluidyne on my S4 TII

I have a mazda thermostat and clutch fan/shroud.

she doesn't even get up to 1/4 on the guage (not sure on exact temp readings)

Bolt in and cools VERY well. I can't even get alot of heat in the winter.........

 

i have the koyo and love it plus you can't beat $315.00 shipped for it spd racing has them in stock

 

Koyo all the way!!!!!

I have Koyo with stock fans... my FC is pretty modded at around 280-290rwhp and I had never seen the water temp go above 180-190 whatever I do

 

damn I need to scoop me up one of them

 

Are they both bolt in?

 

Minor modifications are required for the mounting brackets.

-David Guy

 

they have a bunch in stock 760-787-5759

 

For both radiators?

 

get the koyo from www.absoluteradiator.com and it is about 315 shipped and comes with the fan shroud mounting hardware free. Every thing, I mean everything was an exact fit! Very nice! All you have to do is cut the rad hoses a little because of the thickness of the koyo! Absolute radiator was very nice and shipped fast!

 

Don't know about the Fluidyne, however the mounting brackets have to be swapped on the Koyo. The Koyo is a better radiator IMHO, as it's a dual pass design.

-David Guy

 

http://www.coolradiator.com/HPAMazdaRX7.htm
Found these guys the other day and ordered one for my S5. I'll let you know how it is when I get it in.

B

 

You like the Koyo cuz' I was the one who installed it!!

I say Fluidyne, its a perfect drop in fit. Fitting the Koyo took me nearly an entire Saturday. The stock fan shroud wasn't even close to fitting to the radiator, needed custom mounts an even then it was a bit precarious. If you don't mind fiddling around with mounts and have the time to spend to make it fit right, the Koyo is fine.

I'd rather spend the extra money and have an easy install. Functionally, both will do the job so performance-wise one isn't better then the other.

 

Koyo's fine for street stuff, it's not quite enough for the track for me.

PaulC

 

I'm curious, what are you running as far as radiators go on your track car?

-David Guy

 

LOL. True, true. If I had to do the install, I might not like it as much

 

I don't understand where you guys had the problem with the koyo, mine was a drop in fit. Took the stock side straps off the old one and installed right in with no problems. Then put the mounting kit on for the fan shroud and bam, worked right away. did it in like 30 minutes, huh ow well *shrugs*

 

What do you run...K2RD? Mazdacomp?

 

Right now a Koyo..

230 water temps is too high

Looking at options, may go with a custom griffin and fab my own mounts.

PaulC

 

i got a ? when installed. the new radiator what do you have to do do you just fill it up with coolant or is there something else you have to do ??

 

Depends on your $$$ flow.

 

K2RD! Got it, and love it!