Cooling Mod (sorta)
 

Q) What do you do if your radiator isn't doing the trick?

A) Put in a second one.

http://www.mazdamaniac.com/images/rx...install_01.jpg

http://www.mazdamaniac.com/images/rx...install_02.jpg

http://www.mazdamaniac.com/images/rx...install_04.jpg

http://www.mazdamaniac.com/images/rx...install_06.jpg

That is an 11"x11" tranny cooler, plumbed inline with the overflow outlet, cooled with a 7" fan and ducted to the front.

It works.

The heat has gone to his head:)
Seriously --hope this helps you. I do see a vented hood in the very near future?
Pretty good sheetmetal work.
Surprised- you dont have the water methanol injection yet.
Hint---look at diesal truck radiators and fan assembys( over 6K cfm flow!) --they may have something you can use.
olddragger

nice

omg, only you MM.

Rotary motors don't have a head! lol.


If they made one I like, I'd get it.


Thanks!


Yes I do. Its just a crafty installation. Most of the hardware is in the trunk.


The fan I have under the new sub-rad is pushing about 1600 CFM. I didn't want something that pulled more than 7A.

MM said it works for him in the Overheating thread.

I think we might need a *faster or better fin* fan than the one we have? cuz its mostly the big fan thats cooling things down, and we all know that fan's air flow isnt that great (like what? 1200 cfm ?), I think its to keep the noise to a minimum, but I think I want to keep my motor cool

The "big" OE fan is 1700 CFM and the "little" one is 1250 CFM.
FWIW, I tried a pair of 2200 CFM fans (on the Koyo) and it made no difference.

Hmm, really ?

did you just changed the motors or You *replaced* the whole thing with something else ?

It might not help the Koyo rad(cuz the design suck), but I think more air is better than less air :)

Two entirely new fan assemblies.
Didn't make a lick of difference. They just ate more power and made more noise.

but more noise = more power, right??? ;)

Once you're moving, the fans get in the way. I deally, the fan blades would alter pitch as you start moving so they stopped creating drag in the cooling air flow.

Provided you have adequate flow to the rads to begin with.
Having a big, honking intercooler in the way pretty much stops natural airflow in my application.


Remind me to grab an actuator or two off of a 177 RG next time I'm at the airstrip.

Fair 'nough, though I suspect you're still presurized in front of the radiator(s) at highway speed.

That means we'll be seeing a MM variable pitch radiator fan in a couple months, right?

So the Koyo radiator is garbage basically?

I was about to order this next week.

What would you guys say is the best radiator to upgrade to?

Do NOT get Koyo Radiator.

This is from a guy (me ...) with a year of experience with Koyo Radiator.

It's even WORST than stock ! Constant overheating on Turbo/Super charged applications. Even in NA Application like me, Im experiencing *higher than normal* summer water temp (search for my recent post)

don't get the koyo; total garbage for OUR cars.

I say go with the BHR radiator. We've seen good reviews and it's got THE BEST warranty out there.

I was looking at the same size cooler to replace the oil cooler.
Cool (ha ha) idea.

Oh sure.
I can see the long line of people looking to put a second rad in their car and relocate the battery and fab up a shroud out of sheet metal.

Installing a p-n-p device like the AccessPORT is too difficult for most folks. I don't think many will be opting for a project of this magnitude.

Completely.

See BHR.

Doesn't the BHR intercooler work in conjunction with the BHR rad pretty well??

even so, you know we'll be forming lines and priority listsing soon for this, whether we can/would actually do it or not, lol

I think it would, but I'm using an air-to-air IC, not the BHR A/W heat exchanger.
My turbo doesn't heat the air nearly as much as the Pettit SC (if at all - my IATs are nearly ambient under all conditions), so I don't need such a radical IC.

Not gonna happen.
At this rate, I am going to have to retire from retirement!

look for a shop near the West side of Phoenix.
A lot of new vacant buildings just ready for a great preformance shop to take up residance!

You know...another stock hood runs us about ~$200...punch some holes...and DIY ducting...heh

I'm thinking Chandler/Gilbert/Tempe.

I've got an extra stock hood.
"Punching holes" leaves the aesthetic side of me wanting.

You check out the s2k thread where the guy did it? It came out really really fawking nice...

But I agree with you, theres a bit of aesthetics that originally bothered me...I got over it when I saw the end result when you do it right...that and you can always graft on your own vents, or sheet metal for ducting purposes...