Okay, I swear this is the last Oil cooler thread I will ever post.

Yes, i know r1 dual oil cooler set up is the cheapest and best bang for your buck (i have them)
Yes, im aware of sakebombs and all the other kits out.
No I haven't tracked the car, I've been way too paranoid to track it without all the proper mods.

Now we got that out of the way...
Here is my logic, the stock single oil cooler is not efficient enough to track the car, and the FC cooler is a hell of a cooler, most the FC guys have no problem with running just that. Some, upgrade to 2 FC oil coolers (those seem like most of the hard hardcore track guys). So my rationality thinks a stock FD oil cooler + FC oil cooler will be perfect for my needs. plus is super cheap!

Another reason why I came up with this/leaning towards this idea is because i plan on mounting the FC oil cooler in front of my IC (yes i will duct it) thus it leaves the pass side opening free so i can make a custom CAI.

So to summarize
FD oil cooler > FC oil cooler in series
both will have thermostats
-10an fittings/hose

Here are the configurations im playing around with, I'm leaning towards the last one.




Thoughts?

 

As I spoke with Raymond (Arghx) he replied with these charts so I just want to add this for references




comparing the specs, they have basically the same relief pressure and temperature. Here are the specs for the FD:



and here are specs for the FC ("New model") and FB ("Previous model," which used water heat exchanger):

 

I like it, and think it would be worth a shot. If the oil temps are kept in check and you gain an easy source for cool intake air then it cant be a bad thing.

 

More oil cooling means more engine cooling, a good thing for the track. What IC do you have?

 

greddy FMIC in my own custom VMIC set up. ill be ordering new fittings for this soon

 

Correct me if I'm wrong but don't both the stock FD and FC have thermostats built in? Wouldn't running two oil thermostats be a problem?

 

I like it too. I considered an fc oil cooler before but this should be better. Curious to see how it will work out.

 

I can't speak from firsthand experience but to me, having two oil coolers in series with two functional thermostats with the same nominal specs shouldn't have a real-world effect.

I've never tried but it may be possible to remove one of the thermostats if you are in fact concerned about it. You can see in the diagram for the FC cooler that it appears to be screwed in by the main inlet. I've never had a reason to try myself.

 

The extra oil cooler with the extra thermostat won't matter. If the oil is too cold the thermostat will stay closed and oil will just get bypassed in the hose side of the oil cooler. Heck it doesn't even really matter which way the oil flows for that matter. My retrofit to my truck has been working great.

 

Yup, if the oil is very hot, it will flow through both coolers. If just "hot", it flows through 1st cooler, but will bypass the 2nd cooler, and flow back to engine.

.

 

that looks awesome. must be fun in the bush!

 

Not to get off topic, but thanks man! I still need to build a proper brush guard before I take it anywhere hard core, one wrong branch and I'll have a huge vac leak or oil leak. :/

 

The only thing I'd be concerned with is airflow through the cooler. It's back is practically blocked with the framework there.



I'm trying to picture that area...i guess you could put a very small duct behind the bumper reinforcement...?

 

Yep, thats what i assumed since the R1's have have thermostats in each of the cooler IIRC.

LOL that is freaking badass!!!
That issue did come to my mind even though i ignored it, I "think" there is enough openings back there for air to flow through, if not I can always make a duct or adapt it to work...

 

I hear you guys like our coils too. Hey, give us some of your parts for cheap

 

baahahaha already have the t2 leading coil...! what else in the fc is better... t2 diff?

 

Crafty idea Ben.

 

gracias sir.

Project is still a go but I need to exchange the fittings i have. also a little hiccup, the FC oil cooler threads are different from the FD. the fc is a lot bigger so i need to order some adapters.

anyone know the thread pitch of the FC oil coolers?

EDIT: i believe the are M18x 1.5

 

This may be a dumb question but it just popped in my feable brain. Will the mass of oil coolers add any strain on the oil pump or make it exceed it's capacity? You will at least have to make sure that you have enough oil in it to compensate for the extra capacity.

Awesome idea. Oil cooling is often overlooked and may be the cause of death for many rotaries. they should have all had dual coolers from the factory.

 

eh its not dumb, its has been thought about logically but no facts or data to prove it. im assuming it is no more strain then other aftermarket dual oil cooler kits. Some FC guys even run TWO of these on their stock oil pump so im sure one plus the measily FD oil cooler one will be fine. I will def have to add more oil since the oil capacity of the FC oil cooler is a lot more

 

thats a pretty cool idea..

Just for reference, I track my R1 w/ dual oil coolers, have been tracking it for a few years on stock original twins and original motor (52K miles). Although I dont monitor my oil temps ( i really should) the car has been doing great and the motor is still pretty healthy. I rarely see above 90c for water temps on normal warm days and it stays below 100celcius on hot days.

 

Semi update. i figured id post it here for those not following my build...

made some brackets to mount the Oil cooler. i think it will work pretty well.. i have to make a duct so it gets a nice air flow... also the other fittings are on order.

 

Im on dual stock spirit R oil coolers for several years now I drive my car normal and track mostly drifting
As for temps in summer any kind of 60km+ driving i have max 85c
As for drifting on a summer day in a 2.3km track i manage 3 laps until i have 100c+
Problem is every day summer driving in traffic from 85c if i stop 2-3 times in traffic i hit 100c! easy and i have to go up to speed for them to cool down
So im thinking to remove them and adding an FC on but an aftermarket one from AU but installing it in front off the rad so the fans off the rad suck the hot sir off the oil cooler as well (i have a fmic so the rad is straight up)
My question is with this will my rad get hotter as well from the extra 85c plus heat going throw it?
Did any one try this? This is the only place i found some one even thinking about it

 

in my 1st gen i have the cooler mounted horizontally, with a little scoop/duct/flap, and it works great.

imo getting airflow in and out of the FD style coolers might be easier, and with a front mount it is going to be a little easier to package....

 

100C is fine though. I can see 110-120C starting to be a concern, but FD's ran hotter than that stock when they were new, as the fans didn't come on until 105.

It sounds like you have plenty of cooling.