82transam

iTrader: (18)

I know this has been gone over before, but I need more info. I want to put the air to oil oil cooler from an SA into my 83 which has the water to oil oil cooler. What should I grab from the junk yard when I go to get this setup? Anyone have any detailed pics on how to do this? My current oil cooler is leaking bad and I figured I might as well upgrade while I'm at it and my local yard has an SA with the complete oil cooler in it (I think) TIA

MIKE-P-28

iTrader: (1)

Oil filter pedestial, the oil cooler line ( i would recommend having new ones) and the oil cooler.

The water line exiting the block below it will need to be chopped off so its just a pipe sticking out that doesnt do the T. Also I beileve the water line is differemt, it has a T in it at the firewall..

MarkPerez

when you go,,id'e say look for an 86 2ed gen A to O.
oil cooler.everything else would be 1st gen stuff.
ar'nt the 2ed gens coolers larger then a 1st gens ???
i think so..

inittab

If you want to mount it directly below the radiator just like the SA then you'll need to grab the radiator from the SA too. The SA's radiator isn't as tall as the FB and the Air/Oil cooler mounts up on the bottom of it. Otherwise, you'll need to find a creative place to mount it and then you'll probably need custom braided oil lines.

82transam

iTrader: (18)

Hmmm, since I'm going to be installing the IMSA air dam (thanks Mike) I could mount the oil cooler right up front and make it look like and intercooler. Hmmmm, yea I'm gonna do that. So Mike, basically all I need are the cooler and pedestal right? I'll get new lines, wouldn't trust the old ones. Will the stock oil pump be OK? Thanks

MIKE-P-28

iTrader: (1)

Thats a question that I had.. I was checing different websites and no one mentioned having a problem with pressure when going with a different oil cooler.

Id would second the comment for a 2nd gen oil cooler unless you can find a first gen in great shape

82transam

iTrader: (18)

How much do you firgure a second gen setup would go for? Also, did they switch back to the air/oil cooler in 86 or was it later than that? Also what year did they start putting the water/oil cooler in? It was 83 right? Thanks

yayarx7

I figure there should be little to no price difference in a second to 1st gen setup.
yes, in answer to your other questions.

85RX7GS

iTrader: (1)

If you need help getting that oil cooler out of the SA, let me know.

82transam

iTrader: (18)

I will thanks. Hmmm maybe this week.

MIKE-P-28

iTrader: (1)

Well the years of the air to oil were 79-82 then 84-85 GSL SE only, all 83-85 12a's were water to oil and then in 86-up they went back to air to oil... But they started doing that stupid *** thermo pellet in 86?

I got my 2nd gen oil cooler from Kevin Landers, for $25 He's on this forum, very honest guy to deal with, its like hyntyx in here or something weird...

82transam

iTrader: (18)

You got both the cooler and filter pedestal for $25? yea Kevin is a good guy I just bought a 2nd gen fuse block from him. Nice to work with I'll have to drop him a line. will the Fiilter pedestal from a 2nd gen fit on a 12a first gen? Thanks for all the help.

Felix Wankel

Filter pedestals all interchange. Some are just different heights.

FWIW, I have an FC oil cooler mounted up against my air dam's inlet, and the Mazdatrix stainless steel oil lines for the FC fit it.

82transam

iTrader: (18)

Hey, will the air/oil setup still work as well with a thermostat controlled electric fan? Since the fan won't always be on will this create a problem? TIA

yayarx7

I do not see as this will be a problem. The electric fan and Air/oil cooler is what is on a FD.

82transam

iTrader: (18)

OK cool, the only reason I asked is because the thermostat for the fan will be on the ragiator and will only kick on when the water gets hot. So I thought that maybe the oil would get too hot as a result of the fan not always being on. Hmmm, I guess it wouldn't though becuase the only time you'd have to worry is in traffic and the fan would probably be on a lot there anyway. thanks, later.

MIKE-P-28

iTrader: (1)

I didnt need a pedestial, my cosmo is already ready to go. I have an extra pedestial from a 82 12A here, if you need it, ill throw it in with the air dam.. JUST REMIND ME WHEN YOU SEND THE MONEY

Pele

iTrader: (28)

Can one remove the thermostatic pellet form the 2nd generation oil cooler???

Will the 2nd gen oil cooler fit easily into the SE type bracket on my 1985?

I'd much like to use a T2 oil cooler as it's the biggest... No such thing as too much cooling on a rotary.

peejay

All air oil coolers have a thermostatic bypass in them. It's a thermostat for the oil, without it the oil would never warm up.

The thermopellet on the 2nd-gens is in the eccentric shaft, and cuts oil cooling to the rotors until the engine warms up.

The "PROPER" way to do the swap has you getting the early oil cooler, radiator, fan shroud, oil hoses, oil filter tower (don't forget the 2 new o-rings), the heater core to radiator pipe, and the early style engine-to-heater core hose. (To be **** you should also replace the tee in the rear housing with a straight fitting, but that's just overboard ) I grabbed all of that from the '80 for the swap into the '85. The heater pipe isn't THAT necessary, you can just cap off the one fitting on it, and likewise you can make do with the later engine to heater core hose and just cap off the other fitting on the engine, but that style hose is a bastard to get to the clamp compared to the later one.

Felix Wankel

The thermopellets are a dumb idea on the FC's. (Mazda had a dumb idea? What a shock! ) I always either had to shim mine or put a bypass plug in it because they never worked.