Hey guy,I got a used AT radiator and put it in my 95 5sp,the AT radiator had two xtra holes for the AT fluid to go into the radiator to get cool down before going back into the tranny,I don't use that holes on the AT radiator in my 95 5sp.So I'm thinking CAN I USE THIS HOLES as for my motor oil cooler to cool the oil instead???If I can what parts(filter adapter or what?) do I need or have anyone try this out yet,cause I just want to have one less part to put into the car,thanx!!!

 

its probaly pointless to do unless you have a turbo setup but it can be done. you would probaly use the same outlet that the guys w/ a turbo setup are using to lube the turbo.

 

I was contemplating doing that as well. What temps does the oil get to? The coolant and oil would have to be pretty close in temps to make this work efficiently for both systems.

 

Well I'll turbo my car in a few weeks.So I plan to add this adaptor to the AT radiator,click here for the adaptor, have anyone try this with the AT radiator,or they have a separate oil cooler kit?Just want to see if this will work,then I'll have ane less cooler to put by the intercooler,thanx!

 

I think that's a GREAT idea.

StephenMax is running a HUGE RX7 oil cooler on his SC'd max.

 

that is a good idea if you have a turbo car and dont want to buy an oil cooler. i bet it will work just as well as any oil cooler you can buy anyway

 

yeah that will work frank. Why dont you buy a brand new KOYO for like $150 shipped. That way you dont have to worry about a leak, like leaking coolant into the oil.

 

I got my new Koyo for $112. But if you get a new rad you might as well get a manual one. I think the temp variance between the two fluids will comprimise the effectiveness of at least one of the systems. The manual is thinner and therefore lighter so the added weight of the seperate cooler won't be much more than the stock auto rad.

 

Well I had bought the KOYO rad for my friend civic for $90,I'm not too impress with the quality compare to the stock one. Well that's why I'm asking this question and see if someone have try this,if not I'll try it and see if the temp will improve or not.If the AT rad's thicker then it prolly cool better.
I don't think the weight on the manual rad will affect any performance on the FI car,LOL!

 

the coolant temp in the rad is usually between140-180 degrees i would guess. this is still going to be a heck of alot cooler than what it is w/out it.

 

I installed a KOYO OEM style replacement on my Sentra....it was very nice quality and drop-in.

I would get the KOYO "high performance" aftermarket version if you have the money.

Here is the difference OEM vs. Performance on the Sentra:
http://www.nissanperformancemag.com/...ect200sx_koyo/

 

Also, anyone know of a radiator that could easily be modded to fit the Maxima say from a 350Z, 300Z, 240, etc. that's thicker, but not as long?

 

i dont think they make a high performance one for the maxima.

 

They don't, but I'm sure there is another application we could use with some new brackets.

Something with more cores, but less width preferably.

 

That is what I'm saying. Lets just say the oil temp gets to 200 degrees. Putting the 200 degree fluid in the bottom of the radiator will make the coolant cooling system less effecient. ATF is in a perfect range to go in there. IIRC the max you ever wanna see tranny fluid at is 180 degrees. So the cooling for the ATF would not be extremely effecient but it doesn't need to be. I still think this is a great idea but we need some numbers to estimate the effeciency of each system.

I feel quality is up to par for an OEM replacement. It looks 100% like the OEM part except it doesn't have Calsonic stickers. BTW, the AT Rad is thicker to acomodate the added volume of the ATF. I'm sure the coolant capacity of each is equal. Oh, and weight effects everything now matter the power; the quantity of this effect may be variable but there is still an effect.

Koyo doesn't make a performance version for us. I30Krab has a custom Griffin radiator. I kinda looked into that when I needed a new unit but it would've been hella dough; like $500+. Many people say its not much to keep your engine running cool. That maybe true on cars with pathetic stock cooling systems like RX-7's. But the cooling system of the Max is one its strongest assets. Never once have I overheated my car. And the few accounts of people overheating is due to improper maintenance of the system(Low coolant, busted fans or t-stat.) For that matter I rarely see coolant temps above 190 degrees even when pushing very hard. Only when idling in a parking lot do I see 190's or 200's.

 

the tranny fluid gets hotter than the coolant too. if it didnt then there would be no need for it to go into the rad. if it didnt get hotter than the coolant then the radiator would heat it up and not cool it down. plus you have to remember that air passing through is what cools the radiator not the coolant so i still think that it would work awsome as an oil cooler...plus its pretty big so it would cool it pretty efficiently.

 

I always heard that ATF should never be more than 180 degrees. Lets just settle this by saying that it won't be as effecient as a dedicated oil cooler but it will still work.

Thats another thing. What is the volume of the ATF cooler section? There is no way to tell from looking how big it is.

 

Wrong. Contact JDMMAX if you want one.

 

if you want to try to modify a ixisting radiator to it a maxima the closet one i found was a koyo high performance radiator for a s13 silvia. that is about as close as i have seen.

or you can go with the griffin radiator that i got and have it be a direct drop in. your choice.

 

Was the S13 rad width any less? If so, how much?

 

thats griffen not koyo

 

yeah I had a auto tranny but now im 5speed and boost and the AT cooler is just sitting their and I thought about tyring this a while back. Now with summer coming and the heat we get down here in S.C. I think im going to try this.

 

i didn't measure it i just kind of eyeballed it cause it was installed in my friends car already. plus i didn't really give it to much though. i do have koyo s13 rads in stock here at work so when i get a chance ill measure the dimensions.

 

the only thing you have to worry about is the water necks. I think the maxima one is like 16 x 26 x 1 1 3/4. Something pretty close to that.

 

i don't understand though. if a company already makes a radiator that is a direct bolt on why would you want to find something else and try to make it work?????

 

because other cars have more options.

 

Why would you need more options?
A good company already makes a direct replacement for us, so why bother using something else that you have to modify to make it work.

 

Maybe you want a direct replacement that is more than one core. How much is that griffen radiator? And does it come in automatic?

 

griffin rads are mid 400 i believe.

its not made for a auto matic.
koyo race radiators are not made for auto either. s13 radiators are smaller physically the vendor i bought mine from physically compared the two.

if your looking to do something like what hal did then i can unsterstand why you woud want to use a different radiator. if your looking for something just to use as a upgrade that will fit right in.

trying to give yourself an option will be more trouble than its worth. (im talking about a radiator nothing more.)

 

ve been trying to find a half size radiator and a reasonable price but I cant find one.

 

what a reasonable price?????

to me the griffin radiator @ ~$450 is a reasonable price cause they are the only one that make it.

what are you looking to pay $100 or less??????

 

like around $250-$300.

 

Well the whole point is to see if I can use the AT radiator from the auto,as I already had it in the car,and seeing there was two connector for the transmission NOT using,so I just want to see if there was anyone out there using it as an engine oil cooler,all you will need is the adaptor and you have your self a oil cooler,I know some of your might argu,but to me one LESS cooler is better.I'll try it out anyway,but money was a bit tight right now,after the turbo go in and everything all work out,then I'll start buying temperature gauge,sensor and definitly try it out and see.Well can't beat a $45 used radiator right now,LOL,but in the future I might going to get a griffin and a seperate oil cooler when I got more power to the wheel.