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Cooling Mod (sorta)

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Old 06-25-2008, 10:59 AM
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Cooling Mod (sorta)

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

A) Put in a second one.









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.
Old 06-25-2008, 11:22 AM
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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.
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Old 06-25-2008, 11:28 AM
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nice
Old 06-25-2008, 11:30 AM
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omg, only you MM.
Old 06-25-2008, 11:30 AM
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Originally Posted by olddragger
The heat has gone to his head
Rotary motors don't have a head! lol.


Originally Posted by olddragger
Seriously --hope this helps you. I do see a vented hood in the very near future?
If they made one I like, I'd get it.


Originally Posted by olddragger
Pretty good sheetmetal work.
Thanks!


Originally Posted by olddragger
Surprised- you dont have the water methanol injection yet.
Yes I do. Its just a crafty installation. Most of the hardware is in the trunk.


Originally Posted by olddragger
Hint---look at diesal truck radiators and fan assembys( over 6K cfm flow!) --they may have something you can use.
The fan I have under the new sub-rad is pushing about 1600 CFM. I didn't want something that pulled more than 7A.
Old 06-25-2008, 11:31 AM
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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
Old 06-25-2008, 11:36 AM
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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.
Old 06-25-2008, 11:43 AM
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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
Old 06-25-2008, 12:14 PM
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Two entirely new fan assemblies.
Didn't make a lick of difference. They just ate more power and made more noise.
Old 06-25-2008, 12:18 PM
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but more noise = more power, right???
Old 06-25-2008, 12:20 PM
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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.
Old 06-25-2008, 12:30 PM
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Originally Posted by kristopher_d
Once you're moving, the fans get in the way.
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.


Originally Posted by kristopher_d
I deally, the fan blades would alter pitch as you start moving so they stopped creating drag in the cooling air flow.
Remind me to grab an actuator or two off of a 177 RG next time I'm at the airstrip.
Old 06-25-2008, 12:35 PM
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Originally Posted by MazdaManiac
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.
Fair 'nough, though I suspect you're still presurized in front of the radiator(s) at highway speed.

Remind me to grab an actuator or two off of a 177 RG next time I'm at the airstrip.
That means we'll be seeing a MM variable pitch radiator fan in a couple months, right?
Old 06-25-2008, 12:41 PM
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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?
Old 06-25-2008, 12:54 PM
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Originally Posted by Vasichko
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)
Old 06-25-2008, 01:17 PM
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Originally Posted by Vasichko
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?
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.
Old 06-25-2008, 01:18 PM
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I was looking at the same size cooler to replace the oil cooler.
Cool (ha ha) idea.
Old 06-25-2008, 01:21 PM
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Originally Posted by Charles R. Hill
I guess this renders the BHR rads obsolete and I shall henceforth discontinue them. Thanks, partner! Now we can focus on REAL solutions like the Mazsport Cooling Fan mod.
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.

Originally Posted by Vasichko
So the Koyo radiator is garbage basically?
Completely.

See BHR.
Old 06-25-2008, 01:44 PM
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Originally Posted by MazdaManiac
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.
Doesn't the BHR intercooler work in conjunction with the BHR rad pretty well??
Old 06-25-2008, 01:49 PM
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Originally Posted by MazdaManiac
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.



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
Old 06-25-2008, 01:54 PM
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Originally Posted by morkusyambo
Doesn't the BHR intercooler work in conjunction with the BHR rad pretty well??
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.

Originally Posted by paulmasoner
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
Not gonna happen.
At this rate, I am going to have to retire from retirement!
Old 06-25-2008, 02:50 PM
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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!
Old 06-25-2008, 03:01 PM
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You know...another stock hood runs us about ~$200...punch some holes...and DIY ducting...heh
Old 06-25-2008, 03:06 PM
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Originally Posted by 09Factor
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!
I'm thinking Chandler/Gilbert/Tempe.

Originally Posted by eviltwinkie
You know...another stock hood runs us about ~$200...punch some holes...and DIY ducting...heh
I've got an extra stock hood.
"Punching holes" leaves the aesthetic side of me wanting.
Old 06-25-2008, 03:10 PM
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Originally Posted by MazdaManiac
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...


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