The radiator is bad on my 1993 Rx7 Turbo. The car is completely stock and I may venture into adding only small mods (small power gains) in the future. My main goal is reliability. What radiator would you recommend and where can I pick one up for a good $?

Thanks guys.

 

Greddy makes a smi for FDs + easy to install!

 

Where could I pick on up?

Any other recommendations? I need to get something asap.

 

http://www.google.com/products?hl=en...-8&sa=N&tab=wf

thats the link to google for a few places.

also koyo is cheaper but not sure what people are gonna say about them

 

My personal experience follows.

Fluidyne is the best fitting drop-in radiator and performs excellently. More expensive than the Koyo but you make up for the price in the ease of installation.
http://rx7.com/store/rx7/fdengine_cooling.html

Koyo is good too but it is thicker and presents some installation challenges for some people including me.

Check the 3rd gen FAQ thread for good threads on the cooling system:
https://www.rx7club.com/3rd-generation-specific-1993-2002-16/faq-3rd-gen-other-useful-links-68640/

 

Holy $hit! $900 for a radiator. i'll spend the money for reliability but is there a better route to go if I'm only looking at light mods?

 

look at koyos

http://www.google.com/products?hl=en...-8&sa=N&tab=wf

 

see my post and links

 

Regarding the Fluidyne: does it make sense to purposely get a thinner radiator, and pay over $100 more for it?

The Koyo is 2" thick, making it twice as thick as the stock 1" plastic-capped radiator, which makes more than twice as efficient at pulling heat out of your coolant.

As far as installation "challenges" - which I think is really weird - because the Koyo's thicker than stock, it sits a *little* higher than stock. Using Koyo's mounting holes will not allow you to reinstall the stock IC duct. Oh no! How do you solve this?!!

Get ready, it's pretty complicated:

Step 1: Drill 1 new hole 1/2" above the Koyo's mounting holes so that the Koyo now mounts 1/2" lower.

Step 2: There is no step 2! You're done!

If that's complicated, just sell your FD now.

Once you install your shiny Koyo, your FD will say thank you. You'll notice your heater won't blow as hot, and the interior will feel less like a sauna, and every performance aspect of the car will be improved.

btw there's one or two vendors on this forum that's doing a Koyo blowout so you need to jump on that.

 

Awesome! Thanks for your input guys!

 

LOL. Jump on the Koyo bandwagon.

Sometimes bigger is just bigger. The Fluidyne is also thicker than stock. Not quite as thick as the Koyo but doesn't make a difference.

And what if you aren't using the stock IC duct and the interference requires lowering the whole dam radiator or lots of cutting of an expensive IC duct like the M2 Large?

It was so "complicated" to get to fit that I basically fabbed my own V mount setup using the Koyo and the M2 Large IC. I guess I should sell my car for recommending an easier to install radiator to someone not familiar with aftermarket FD parts?

In a SMIC configuration, you won't notice much if any difference between the Fluidyne or Koyo - track and street proven by forum veterans.

 

Mishimoto V mount