i posted it in another thread but some thought it should be on its own for more visibility so here it is.

in an effort to keep the upper radiator hose from getting torched by tubular manifolds, a lot of people go with an evo 4 5 6 style radiator. many are either too thick, or too expensive. a 97-02 mirage radiator is dimensionally the same with the core thickness and passenger upper mounting pin being the exception. the lower tank also gives more room for big turbos. about 1/2" over stock. its a single pass 5/8" core and gives up some cooling over stock. while i havent tested it yet, it should provide sufficient cooling for street cars. half radiators work great and they have about the same capacity.

koyo is generally a good brand and the part # is W0133-1819907 and many places have it for around $100 shipped. there are cheaper ones as low as $75.

here are pics.

stock radiator.


mirage radiator.


upper hose location.


passenger side upper strap location. (i will make new brackets and post instructions, very easy to do.

 

i ran one of these in my mirage for a while before i bought an alloy Evo core

Do you think it will cool enough for road racing/ track work?

 

I honestly have no idea. I know for a fact it gives up capacity over stock, but we all know stock has a huge amount of excess capacity.

 

got a pair of fans. a 14" and an 11". hopefully this keeps things cool.

 

I'll add to this thread when my Koyo setup is done. Good to know.
Koyo P/N: KOY R030939

For now:

 

would you mind taking a pic of the lower tank and measuring how thick it is?

 

Surely. Probably won't get to it tonight, but I will as soon as I can.

 

fyi, you can fit a 14" and an 11" fan on the radiator. im not sure the 11" will clear the dump tubes, but the 11" fan i bought is 2" tall so its doable.

14" Spal 30101509
11" Spal 30100364

 

BTW, I'm not home until next week, mang. I'll get your measurements up then.

 

How has this worked out?

 

Yea, I'm wondering too. I have a Mirage with a 4g64 dohc swap and I actually sourced the evo 4-6 rad brackets so I could run a dual core evo 4-6 rad, because my car ran warmer than when it did with the stock motor. Is there something wrong with my car?

 

You can get evo 456 rads for $100 shipped on ebay, dual pass etc. This is cool if you need more space tho

 

I have been running the KOYO Mirage radiator since March of 2013. My car is a daily driver with AC and I have not experienced cooling issues. I run the stock PS pusher fan and a 14" puller fan on the DS wired through the factory DS fan controller. Never see temperatures above 180F even in the middle of summer with AC on and sitting still. I have no experience with this radiator for racing applications. I had to make my own custom top brackets from aluminum using the inserts from the stock mount. On the bottom it fits the factory mounts, but I added ~0.200" spacers to slightly raise the radiator, which is not necessary. I can provide the part number for the hose I used if anyone is interested.

 

n2oiroc

can you link me to where have you bought that oil feed line ?

is that the one extremepsi sells ? http://www.extremepsi.com/store/prod...0&cat=0&page=1

 

Welp, that's pretty impressive. I didn't think the puny Mirage Rad would work well with the 4g63.