Dual oil coolers: Adding FC oil cooler
#1
Dual oil coolers: Adding FC oil cooler
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?
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?
#2
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):
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):
Trending Topics
#8
rotorhead
iTrader: (3)
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.
#9
Full Member
iTrader: (1)
Join Date: Jan 2003
Location: Seattle
Posts: 235
Likes: 0
Received 0 Likes
on
0 Posts
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.
#10
Rotary Enthusiast
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.
.
.
#13
King of the Duct Tape
Join Date: Feb 2001
Location: PA
Posts: 1,177
Likes: 0
Received 0 Likes
on
0 Posts
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...?
I'm trying to picture that area...i guess you could put a very small duct behind the bumper reinforcement...?
#14
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.
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.
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...
#18
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
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
#19
Rotary Enthusiast
iTrader: (47)
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.
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.
#20
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
#21
Rotary Freak
iTrader: (21)
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.
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.
#23
geopouros
iTrader: (1)
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
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
#24
Moderator
iTrader: (3)
Join Date: Mar 2001
Location: https://www2.mazda.com/en/100th/
Posts: 30,800
Received 2,574 Likes
on
1,830 Posts
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....
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....