Hmmm maybe use some small rubber flaps to help with airflow at speed... it would be fairly easy to cut or drill the holes Then rivet the rubber into place with some washers.

 

you wont need that. The amount of air actually penetrating the cooler is not that much. It wouldnt be enough to open a flap.
If you look closely at the s2 models oil coolers it is obviousl that more of the cooler is actually exposed making it better in low speed situations. Our S1 model duct is a very good one, but a ducts primary purpose is to redirect air and when air is redirected it loses momentum. This does not help ith low speed cooling. A fan is the only answer I can think off.
My oil temps will go up 20F when I pull off the interstate and enter town driving. With this engine it is really easy to get the oil to 210F at the filter.
Stay tuned.

 

I understand. Yeah pulling off the interstate is where I lost my first engine. That one Popped Very loud when it went.

What are you using for an oil thermostat?

 

i have the oem oil cooling system. the thermostats are working fine in mine--passenger side surface of the cooler temps are about 10-15 f lower than driver side.
i wedged open the passenger side thermostat once and it did not make any difference in max temps--just like it shouldnt have

 

Of all the problems I had oil temps were never an issue with the Fluidyne oil cooler, even lately with the problems my oil temp rarely get above 200F. But, adding a single larger cooler is not really an option for OD given all the other plumbing he has. When I get the new motor we shall see but my oil cooler is probably the best I did.

But at least now I have a chance to replumb everything and get it the way I want.

OD, do you think the A/W inter-cooler radiator I am using needs to be as big as the one you have? That thing is huge, i would have no choice but to put it in front of my radiator. But with the open fin design and my secondary radiator that may not be an issue. Maybe I should rethink my inter-cooler options.

 

Whats up?

 

Air water intercooler needs to be as big as you can get it, in an area that receives a large amount of air. all intercoolers will heat soak at some point. it just depends on circumstances
The one that is on the way from frozen boost folks is only 1 inch thick. I have room to mount this in front of the support bar and since my grill has been opened it can be placed up higher so the lower part of the front will still be open for the a/c-radiator coolers. And in your case --your oil cooler.
Now Juan --anothe pettit guy-- put a timer on his a/w intercooler pump, so that when he gets out of the car at a store or something, the pump runs for about 1-2 minutes which reportively helps a lot with that type of heat soak.
I am intensely contemplating moving my tank to the trunk. But --one thing at the time.

What amazes me is even when I am not in boost--just driving--the post blower temps still climb. Its soaking from engine heat.
I do have some work to do to figue this all out.

Hey Ash --where have you been?!

 

here is a a/w water intercooler:

its just a 1st rough fit---dont critize---and --yes it is going to fit--i may not eeven need a storage tank?


https://www.rx8club.com/attachment.p...1&d=1310864894
https://www.rx8club.com/attachment.p...0&d=1310864894

 

Hey Denny!!!..

Over at the Miata forum, giving them some Aussie hell...
Well sort of, but really I prefer it here more, you guys seem more "real"..I guess it is perception, and they don't understand my lack of humour..or language.

lol..

Anyway, what happened with your R3's Starting, I sent you an Hotmail with details and some links to a 'special place', but you were probably locked out of it...It might of helped.

Frankly, I hate the AKE (Advanced Keyless Entry) BS, the MORE we want of technology the more problems it causes...the number of electronic modules or 'Black Jesus Boxes' in an RX-8 and most new cars is mind boggling.....and Very expensive to replace or test.

BJB's only Christ knows what is in them.....sorry...

Enjoying your thread OD, but don't have much to offer...not into upgrades much...never have been...money eaters which you never get back.

PS: and it is bloody cold here!

 

Yeah well now that the car is down until the engine is in I will try and figure all this stuff out for me. That is a huge cooler, let me know how it works out.

 

Hey Ash--welcome back!
The R3 issue has ended up being the ecu? 2 pins where not getting B+ at anytime voltage BUT even when I supplied that voltage to those pins, it still would not turn over but all the keyless stuff worked and no dash lights other than the usual.
Hoss 5 has purchased it and when he gets back in country he will get it figued out. He is great with electronics.
When I took the ecu apart it sure looked clean--no bubbles anywhere, no discoloration.
I was able to find another 09 ecu and knowing the dealer will have to program the build data etc --i may let them try to crank it too.

9K--it is big isnt it? its about 100 more square inches than the Pettit one. But it will not look so big once it is installed. The pic is just showing it flush mounted on the front beam--i just wanted to test any clearance issues with it like that and the front clip. I discovered that there is none, there is plenty of room. Now my mount will not look like that when its finished. Its going to be tilted back from the bottom part a little and no that will not make a significant difference in the cooling. There is a LOT of air available up from.
This is my plan--low speed cooling is my concern.
the a/w radiator will be close(3-4)inches to my secondary radiator that will have a pusher fan installed on it. The air that fan will have to drawn from will have to pass the a/w radiator in some way. Now this is for low speed cooling only so a LOT of air is not needed. I know that the fan will not pull a lot of air actually through it, but there will be a little breeze.
I have found by putting the fan on the secondary radiator works better than mounting it on the a/c condensor. This has worked out VERY well for me.
I think this a/w cooler will get the coolant down to ambient no matter what. I like that it has a built in port for a temperature sensor too. It is built very well and the air flows through it better than the old one. The feed and return ports are bigger too so the coolant flow should not be as restricted. Its better all the way around.
It will be finished in a couple of days--so stay tuned!

 

Awesome I/C heat exchanger!

 

ok i have been posting on the Pettit site but since some og you come to this thread more --let me throw this up.
look at the pics:

https://www.rx8club.com/attachment.p...1&d=1311037667

https://www.rx8club.com/attachment.p...1&d=1311037667

the new a/w radiator is about another 100 sq inches of face.
it works too!
Coolest my a/w coolant has ever been!
about 10-15 degrees over ambient---even in suburban driving! That was my main goal --was better low speed cooling.
When i did this I also installed a 6 inch spal puller fan behind my drivers side oil cooler.
That things moves some air to be so small. It will cool my oil while setting at a redlight on a 90F day. Dropped the oil temp by 10 degrees in just a few minutes.


I am very satisfied.
my ect, my oil temps and my a/w coolant temps are the best they have ever been.
rotor on folks and stay cool!

 

Nice man, you have me rethinking my setup and what to do with my now useless nitrous kit

 

looks good denny!

 

anyone know what this is? and why i am getting it?
http://www.google.com/imgres?imgurl=...ch&um=1&itbs=1

this is going to make my life a little easier.

 

In line Thermostat

 

Is our radiator hose a 1.250 in. diameter hose?

 

Because it's one of the last 3 items in their catalog you haven't ordered??

 

How does that thermostat work?

 

No.............

 

yall know i run a secondary radiator. It is plumbed using the heater hose. That means it bypass's the engine's thermostat. This is not a problem if done correctly but i always have had a one thing I wanted to change. I was overcooling the engine once the ambient temps got below 85F or so.
I will place this in line housing on the hot heater hose side going to my secondary radiator using a 180F barrel type thermostat.
This will totally balance the systems and no more overcooling again.
Warm ups actually were never a problem on an 85F degree day. It would warm almost like oem even on cooler days until the coolant got to around 160F Then it was slow. It will not be that way anymore.
My cooling system is finished.

 

what radiator is that? Didnt see ur secondary radiator around there

 

guess I will have to fly out there and tune it myself in order for us to ever see any results ...

 

I don't know about that, it may solve the plumbing issue, a single oil cooler on one side, and the other sides ducted hole can then be used for the secondary radiator or inter-cooler.