radiators, radiator, radiators
08-03-2006, 12:36 PM
#1
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radiators, radiator, radiators
as requested Here is a start for the Radiators thread. I will clean it up, perdy it up, and add more info soon.
please feel free to add info, or pictures if you have it.
Mazda OEM $379
http://www.trademotion.com/partlocat...04&catalogid=1
BHR - $$550/MT and $650/AT (RX8Club.com Forum Vendor! and the only place that makes a Rad for the Auto!) (Charles R. Hill)
https://www.rx8club.com/series-i-major-horsepower-upgrades-93/black-halo-racings-product-line-146611/
RE-medy - $525 (RX8Club.com Forum Vendor!) (MazMart)
http://www.mazmart.com/ or see Post 75 of this thread ( https://www.rx8club.com/showpost.php...6&postcount=75 ) for more details
Koyo: $330
http://www.rx7store.net/product_p/koyorx8.htm
PWR: $479
http://www.vividracing.com/catalog/p...031ecbb6df0a3e
Silla: $207 (this seems like just a 'premium' stock replacement)
http://www.car-stuff.com/mmparts/maz.../radiator.html
ARW $559
http://www.awrracing.com/store/produ...products_id=68
Knight Sport $???
http://japanparts.com/db/partslist.p...maker=&volkey=
Greddy $893
http://www.advancespeedshop.com/gred...03-p-3844.html
Mishimoto $320
http://www.mishimoto.com/mishimoto-u...-radiator.html
Cooling Fans:
http://www.mishimoto.com/cooling-accessories.html
please feel free to add info, or pictures if you have it.
Mazda OEM $379
http://www.trademotion.com/partlocat...04&catalogid=1
BHR - $$550/MT and $650/AT (RX8Club.com Forum Vendor! and the only place that makes a Rad for the Auto!) (Charles R. Hill)
https://www.rx8club.com/series-i-major-horsepower-upgrades-93/black-halo-racings-product-line-146611/
RE-medy - $525 (RX8Club.com Forum Vendor!) (MazMart)
http://www.mazmart.com/ or see Post 75 of this thread ( https://www.rx8club.com/showpost.php...6&postcount=75 ) for more details
Koyo: $330
http://www.rx7store.net/product_p/koyorx8.htm
PWR: $479
http://www.vividracing.com/catalog/p...031ecbb6df0a3e
Silla: $207 (this seems like just a 'premium' stock replacement)
http://www.car-stuff.com/mmparts/maz.../radiator.html
ARW $559
http://www.awrracing.com/store/produ...products_id=68
Knight Sport $???
http://japanparts.com/db/partslist.p...maker=&volkey=
Greddy $893
http://www.advancespeedshop.com/gred...03-p-3844.html
Mishimoto $320
http://www.mishimoto.com/mishimoto-u...-radiator.html
Cooling Fans:
http://www.mishimoto.com/cooling-accessories.html
Last edited by speeddemon32; 10-27-2008 at 10:48 PM.
08-03-2006, 12:47 PM
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AWR: $558.95
http://www.awrracing.com/store/produ...products_id=68
this is the same radiator mazda motorsports sells to racers, but AWR's price is better.
http://www.awrracing.com/store/produ...products_id=68
this is the same radiator mazda motorsports sells to racers, but AWR's price is better.
08-03-2006, 12:55 PM
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08-03-2006, 01:30 PM
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Originally Posted by Skiptomylue
ok, Good idea!
Question, what would be the benifits Of swapping out rads?
Question, what would be the benifits Of swapping out rads?
08-05-2006, 09:17 PM
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theres a mazdaspeed radiator and r magic radiators, not sure if it's worth looking into especially for double the price...
link
http://japanparts.com/db/partslist.p...maker=&volkey=
link
http://japanparts.com/db/partslist.p...maker=&volkey=
08-06-2006, 03:25 PM
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How many degrees can an aftermarket radiator lower the water temperature? 5°C? more? less? I have a keen interest, but I don't know the real gain in temperature.
bye
bye
10-23-2006, 08:00 PM
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I have fitted a PWR radiator to ny RX-8. Nice quality but the mechanic said he had major problems with the mounting brackets. It appears that they do not match the stock radiators brackets. The mechanic had to make extra bracketing to fit the PWR radiator. I dont know if this is because euro zone cars differ to those in USA?
10-24-2006, 01:57 PM
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And how to get extra cooling for the oil
Dear sirs,
We easily find aftermarket radiators to cool the engine coolant (water+glycol or any other antifreezer. Let´s call that just water). Some examples are shown within this thread.
Now, if you get more engine power you need extra water heat rejection (i.e bigger water radiator) AND also extra oil heat rejection. Probably in the same proportion if not more.
Therefore this thread would be comprehensive if aftermarket oil heat radiators are added to upgrade the stock ones (some models are equipped with one whereas some others with two BTW).
Anyone knows of any oil rad?
Cheers
jird20
Note: It is sad to realise the complete lack of thermal data on aftermarket radiators, such us heat rejection, max air temp, water outlet temp, etc. It is pure marketing to quote a radiator as "racing radiator" because how better is that?
We easily find aftermarket radiators to cool the engine coolant (water+glycol or any other antifreezer. Let´s call that just water). Some examples are shown within this thread.
Now, if you get more engine power you need extra water heat rejection (i.e bigger water radiator) AND also extra oil heat rejection. Probably in the same proportion if not more.
Therefore this thread would be comprehensive if aftermarket oil heat radiators are added to upgrade the stock ones (some models are equipped with one whereas some others with two BTW).
Anyone knows of any oil rad?
Cheers
jird20
Note: It is sad to realise the complete lack of thermal data on aftermarket radiators, such us heat rejection, max air temp, water outlet temp, etc. It is pure marketing to quote a radiator as "racing radiator" because how better is that?
Last edited by jird20; 10-24-2006 at 02:05 PM.
10-24-2006, 02:04 PM
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Originally Posted by O'Renesis
I have fitted a PWR radiator to ny RX-8. Nice quality but the mechanic said he had major problems with the mounting brackets. It appears that they do not match the stock radiators brackets. The mechanic had to make extra bracketing to fit the PWR radiator. I dont know if this is because euro zone cars differ to those in USA?
10-24-2006, 03:25 PM
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Originally Posted by nycgps
Thats why people like Koyo better.
, hope somebody from PWR reads this. Don't know why they can't get the mounting brackets right. The PWR is a lot more expensive than the Koyo, so no excuses
10-27-2006, 02:56 PM
#18
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Originally Posted by jird20
Dear sirs,
We easily find aftermarket radiators to cool the engine coolant (water+glycol or any other antifreezer. Let´s call that just water). Some examples are shown within this thread.
Now, if you get more engine power you need extra water heat rejection (i.e bigger water radiator) AND also extra oil heat rejection. Probably in the same proportion if not more.
Therefore this thread would be comprehensive if aftermarket oil heat radiators are added to upgrade the stock ones (some models are equipped with one whereas some others with two BTW).
Anyone knows of any oil rad?
Cheers
jird20
Note: It is sad to realise the complete lack of thermal data on aftermarket radiators, such us heat rejection, max air temp, water outlet temp, etc. It is pure marketing to quote a radiator as "racing radiator" because how better is that?
We easily find aftermarket radiators to cool the engine coolant (water+glycol or any other antifreezer. Let´s call that just water). Some examples are shown within this thread.
Now, if you get more engine power you need extra water heat rejection (i.e bigger water radiator) AND also extra oil heat rejection. Probably in the same proportion if not more.
Therefore this thread would be comprehensive if aftermarket oil heat radiators are added to upgrade the stock ones (some models are equipped with one whereas some others with two BTW).
Anyone knows of any oil rad?
Cheers
jird20
Note: It is sad to realise the complete lack of thermal data on aftermarket radiators, such us heat rejection, max air temp, water outlet temp, etc. It is pure marketing to quote a radiator as "racing radiator" because how better is that?
10-27-2006, 09:47 PM
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Also go with underdrive pulleys. Above 7,000 rpm, the water pump starts cavitating and doesn't push as much coolant through the system. The underdrive pulleys correct that.
10-28-2006, 07:08 AM
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Originally Posted by army_rx8
^really i haven't heard of that..but i haven't really been checkign out the forum as of late...guess i have a lot of reading to do 
Pulleys
Changing to competition drive and water pump pulleys will significantly reduce, if not eliminate, water pump cavitation. Water pump cavitation on a rotary engine (with stock pulleys) is unavoidable at rpms above 6500-7000 and is a significant contributor to engine overheating. Cavitation is defined as a disruption of the water/coolant flow through the water pump. It is created when the water pump impeller spins at such a high speed that it is actually churning instead of pushing the coolant through the pump. Changing to a larger water pump pulley and a smaller drive pulley, allows the water pump to spin at lower rpms, effectively transporting the fluid through the pump.
Changing to competition drive and water pump pulleys will significantly reduce, if not eliminate, water pump cavitation. Water pump cavitation on a rotary engine (with stock pulleys) is unavoidable at rpms above 6500-7000 and is a significant contributor to engine overheating. Cavitation is defined as a disruption of the water/coolant flow through the water pump. It is created when the water pump impeller spins at such a high speed that it is actually churning instead of pushing the coolant through the pump. Changing to a larger water pump pulley and a smaller drive pulley, allows the water pump to spin at lower rpms, effectively transporting the fluid through the pump.
10-29-2006, 11:11 PM
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holy crap! Wow I thought getting the underdrive pulley was just to look for some small gains... You guys are saying that it allows the water pump to run better at higher rpms?
Why didn't Mazda do this from the start?
Why didn't Mazda do this from the start?
10-29-2006, 11:14 PM
#24
The Professor
Originally Posted by Keef
holy crap! Wow I thought getting the underdrive pulley was just to look for some small gains... You guys are saying that it allows the water pump to run better at higher rpms?
Why didn't Mazda do this from the start?
Why didn't Mazda do this from the start?
It is pretty warm while at idle w/ the pulley, while moving its frosty and delicious.
10-30-2006, 06:15 AM
#25
Originally Posted by Keef
holy crap! Wow I thought getting the underdrive pulley was just to look for some small gains... You guys are saying that it allows the water pump to run better at higher rpms?
Why didn't Mazda do this from the start?
Why didn't Mazda do this from the start?