flyboyjuge

alright..im about to take the plunge into my first mods for the fd..im starting with downpipe, radiator, hiflo cat, catback...im wondering if koyo is a good radiator..or should i go with fluidyne since i see everyone else with one...please help me out..thanks julian

aw101584

I just installed my koyo about a week ago, it took a little bit modifications to get it to fit but nothing really that major. The koyo is larger than the fluidyne and cheaper. So I guess if you are willing to do a little modifying then go with the koyo, or just go with the fluidyne which I hear needs no modification.

~alan

Jason

iTrader: (5)

If you are using the stock intercooler and intake there are some issues with it fitting. The fluidyne and the PWR are not as thick and fitment is better.
If you are wondering the fluidyne and PWR are identical except the PWR having a better finish (polish).

Jason
www.rx7store.net

suprfast

there we have it, last testimonial showing that product A is also product B for 100.00 more dollars.
koyo=SR
fuidyne=PWR
go with the koyo. i love mine. a search would yield me saying the same thing time and time again. i had no fitment issues. well i had to bend the lower tabs ever so slightly, but if that is what people consider modifying then...
im pretty sure that looking around will yield more comparisons between two companies having same parts. i doubt SR pullies are NOT UR. im not bad mouthing a company, just tired of hearing someone buying something, putting a polish and sticker on it and calling it theirs. whatever happened to copyrights, patents, and trademarks? i bet the Xmac is really a big mac with REAL BEEF. oh well, what are my two cents worth
kris

suprfast

by the way i fogot to add something...you may want to look for an ECU if you plan on doing those perforance mods. hiflo, CB, and DP could get ugly. for sure dont throw an intake in the bunch. id say skip the CB and get a PFC.(sorry for sounding negative right now. im doing HW and writing my trial by decleration for the idiot cop that gave me a ticket since he was at fault, now i have to prove it...GAY)
kris

GEB

Back when I got mine Fluidyne it cost $415
The prices have obviously gone up since then. The Koyo at the time was $375 I have a buddy who has the same setup as me and he purchased the KOYO - his install took a lot longer than mine and he still has clearance problems....

Different strokes for different folks....I couldn't be any happier with my fluidyne. Either way, as long as you upgrade to an A/M unit and get rid of that POS OEM unit you'll be good to go brotha...

Good Luck
GEB

evot23

iTrader: (17)

I've got a fluidyne, a couple of my friends have a Koyo. Our temps run about the same with both of us having similar mods.

I say go Fluidyne and save some bucks. Just my .02

rxrotary2_7

either or.... get rid of the POS OEM one. i personaly have a koyo at the moment.

Shinobi-X

Koyo works fine for me, and I have no fitment problems...

flyboyjuge

lol...thanks everybody...kris ya crack me up...so too much mods can actually be harmful??im sorry im a retard? but what exactly does the "PFC" do?? and some guy told me to get a mid pipe instead of a hi flo..but wont that hurt me with emissions??? more help!!!!!!! but thanks everybody. julian

turbogarrett

iTrader: (1)

i would do koyo if you're planning on using a fmic, fluidyne for an upgraded smic. i have the koyo with an m2 large and the duct sits a little higher than it should, but still has a good seal around the ic and does not rub on the hood, so it's fine with me. the pfc is a standalone computer that replaces the stock ecu and would be a great option if you have somebody who can help you tune it otherwise consider a pettit or m2 ecu, which you can pick up used for around 400. no you won't be passing emissions with a midpipe!-garrett

striker

I hear that a mid pipe gives you more horsepower higher up, but decreases the power in the lower rpms?
If this is true, wouldnt a highflow cat be better?

Narfle

iTrader: (16)

i sincerely doubt that you would loose and down low power by putting an mp on
the turbo puts plenty of backpressure on the exhaust
if you dont want boost creep id go with the highflow cat in the least
a few horsepower will be the least of your worries when yopu pop your engine with a mp

suprfast

get some sort of standalone and a midpipe. dont spend extra money on a hiflo. junk if you ask me. put the MP in and if you get spikes or creep throw a restrictor plate in. ive done this method and i still get FLAMES. big ones too. cant wait to see if taking the restrictor out would make more flames. blah, i need a WBO2
kris

flyboyjuge

im worried about passing emissions though...what causes the flames...i want flames!!!!!!!!! haha

Juster

I have the fluidyne radiator and it was pretty easy to install. fits in exactly the same place as the stock radiator does. didnt require much modification to get it in. good luck

neevosh

I had a Fluidyne and had no problems with it. What I like about the it was that it has a brass drain plug, where the Koyo has the cheap plastic one. And the Koyo usually takes some minor modifying to install. The Koyo is about $75-100 cheaper, though.

Scrapiron7

I am pretty sure they are both a good choice and you really can't go wrong with either of them. They are both much better and more reliable then the crappy stock radiator.

Shinobi-X

Unburned fuel, and no restrictions in the exhaust path- which means you won't pass emissions.

ghiaracer

THe fluidyne has a more efficiant core, but its not as thick as the Koyo. So... cooling capacity is really close.
If I had to do it over again, Id get the fluidyne because its a little lighter.

maxpesce

Fluidyne & PWR may LOOK identical BUT the Flyidine is made in the USA by Fluidyne and the PWR is made in Austraila by PWR.
The Fluidyne uses a unique (patented) tube design (I believe they have internal turbulators) that improves heat transfer. PWR may licence Fluidyne's technology but I don't know if they do or not. They both look the same externally b/k the are both designed to be drop in replacements for the OEM unit.

enuttage

My thought is also, "flip a coin".

I'm pretty heavily modified, using a Fluidyne, and having no problems. My summer autoX temps have gone from up to 109C last year without the new rad, down to a high of 91C this year, after multiple consecutive runs really flogging it.

A huge difference and great peace-of-mind.

I think either way, you're going to see an immense improvement over stock temperatures.

-E

enuttage

My thought is also, "flip a coin".

I'm pretty heavily modified, using a Fluidyne, and having no problems. My summer autoX temps have gone from up to 109C last year without the new rad, down to a high of 91C this year, after multiple consecutive runs really flogging it.

A huge difference and great peace-of-mind.

I think either way, you're going to see an immense improvement over stock temperatures.

-E

adam c

iTrader: (2)

I bought the fluidyne because I didn't want ANY fitment issues. A couple bucks more was worth it for me.

flyboyjuge

alright..i guess im gonna go with fluidyne...thanks everybody..