I have a JDM 6mt . These only come with only 1 oil cooler .
Will soon be going FI and after seeing what different people were doing for cooling I had this idea :
I would fit a second radiator where the 2nd oil cooler would normally go.... .

Any thoughts on this ?

 

you mean a 2nd radiator for your water cooling system? Its going to need to be a small radiator.

I think you would be better off adding a 2nd oil cooler instead.

 

was wondering if the water rad would actually be a better mod as those that have fitted an extra one seem to be having success with it .
Nobody seems to be having oil overheating issues ......

 

I've only heard of 1 person doing a 2nd water radiator.

Oil temperatures are pretty critical in the rotary. Just not sure how many people having over heating issues are paying attention to it.

There are lots of things to do for the water side of things before adding a 2nd radiator.

There are very few things to do for the oil cooling part.

Do you have gauges to monitor your oil and water temps?

 

MM & OD have both had success with totally different setups .


but they dont seem to be that effective - from what I read . Whereas the 2nd radiator idea was very effective .....



Not yet - although I have monitored water temps with Scanalyser at the track .

 

If you think that is the way to go then I'm not sure why you are asking if that is what you should do?

 

I had thought about getting the second oil cooler but wondered if this idea would get a better result . Suppose I need to try it . Was thinking I could actually use the stock oil cooler for this ......

If it worked well It might be a mod the US guys could do as they already have the oil cooler in place .....

 

i run my gauges at: oil psi 12, oil temp 100-200, and water temp 200-215 all (F). I am thinking of the radiator also and I am going to purchase the cooling fan from mazsport. I also run there stage 3 kit, (put together) little by little. Missing the fan though. I have a friend who does Methanol injection he goes down to 85 F fast!!!!! Any onther Ideas to cool off the motor?

 

hey,

i would go the second oil cooler route. let me know if you need one. i will find it for you and get it shipped out!! which side is the oil cooler not on. the exhaust side, or the other. i think that is consistent on jdm vs us cars!

and then upgrade the radiator.. wow, did not realize you only had one cooler.

beers

 

Cheers Swoope , i'll get back to you on that . We are missing the drivers side oops i mean the passengers side - for you people who drive on the wrong side

 

get a mazmart water pump to help the water cooling, add a 2nd oil cooler

 

the exhaust side? correct? the side that your steering wheel is on.

beers

 

some where I read about drilling three small holes in the t-STAT to allow xtra flow of water.....can someone reiterate about this diy mod... I could not find that thread....

 

that will not help.

but the cool tstat stuff posted right now is by olddragger..

you could like search the name and stuff..

beers

 

So as of now, I have the mazsport fan controller and oversized radiator....what other mod can I do outside of replacing the stock water pump.... or is the aft. pump the only option?

 

what oversized radiator do you have???

the mazmart h20 pump is very good..

and you are where, and your problems / heating issues are what?

beers

 

Koyo. Its wider than stock but maybe not recommended here...what do you think....texas gulf coast gets hot and i did what I thought would help the motor.

 

the koyo is worse than stock.

two steps back..

orlando is not very much different that anywhere in tx. btw, i love tx.

beers

 

Thanks for your personal opinion.

 

it's more than an opinion - several members have reported the same thing ...

 

odd that it comes up.

put the bhr radiator in. have to do some sealing around it.. but so far. the scanilizer readings are very good. without the sealing..

but what do i know..

beers

 

stop putting z's in words where they don't belong - blasted Americanz

Hey Swoope is the BHR that good ? Have not really seen any good tests to back it up ...

 

will not have a accurate answer till i get it sealed off. but i will say right now it is better than stock.. this is with huge gaps on all four sides.. i have the stuff to seal it. the front end of my car comes off tomorrow.

note to all. if you have not changed a radiator in the rx8. well it sucks. i would do it again, but i have learned..

bret. check pm..

350 zed? explain that.


beers

 

it's called the 350 S here

 

if you fi this engine you will need a second oil cooler. good idea but remember these systems have to be somewhat in balance. FI --no matter what type--will increase the heat a good bit..
2nd radiator mounted away from the other exchangers seems to be working for us. you have to have a better waperpump to do this. proper flow is critical. it also is beneficial to do the 180F thermostat mod. no screens on the exchangers if it is possible to do so in your enviroment
do the search boogie.
olddragger