RX-Midget

I developed a leak in my large (12x11") Mocal oil cooler on my car. I'm not sure if it can be fixed, so I was wondering what the dimensions are for the Mazda air-oil cooler to see if I can get one to fit.

Thanks

MarkPerez

Are you talking about external diminsions ? or capacitiys ? I can tell
you that the cooler you have (race) is larger and depending where
you mount it,,works the same or better then a 12a stock unit mounted
under the rad. I'm not sure of the internal spec's,number of cores,
amount of fins,angle of the fins,thickness,or flow rate , of a stock mazda 12a rotory engine air-to-air oil cooler,,why don't you stick to what you have already? or direct replacement for it ?? I have a couple of books
that may have some info,,if so,,then i'll post results

RX-Midget

I want to know what the external dimensions of the Mazda cooler are.

Several reasons:

1) My nice big cooler has a small leak and it is out of warranty
2) A replacement 44 row cooler will run about $400.
3) I would like to know if the Mazda part will come close to fitting.
4) My friend is building a similar car and would like to keep the cost down by using as may stock parts as possible.

Thanks

MarkPerez

Ok,,the stock cooler is 22 inchs long, 5 inchs tall,and has 6 rows(cores)
at the web site RX heaven used coolers are $ 100.00 dollors
and at mazdatrix they can be bought new,,I just bought a new cooler
from them,,for to much money !! $ 634.70,,,ouch !!
Your car is an MG ?? or is it an bug-eye,,, cool concept though..

RX-Midget

Thanks. One dimension missing - how thick is the core? I am tight on space so it does matter.

The car started life as a '76 MG Midget.

Is the 12a cooler the same size as the 13b coolers?

MarkPerez

Ok, the last dimension is just about 2 inchs at the core ( center )
slightly thicker on the ends ( caps ) looking at the picture ( below )
they seem pretty close, as far as size wise

yayarx7

I dont know about the GSL-SE but the second gen is significantly larger than the first gen 12a oil/air cooler. I just put a TII oil cooler in my 83. I should be so much faster now that I have TII parts right?

MarkPerez

Cool,where did you put it at ?? and how much more oil does the engine
need now,what kind of oil PSI do you have now too,,does the engine run cooler ?? do you notice any difference ?