Duane still owes me a CF IC duct as well. I would not do business with him. After promising delivery numerous times, he eventually said he had more important things to do. I think "more important fish to fry" were his exact words.

thanks tyler i'll be looking for it

Rotary Extreme also sells a very nice dual oil cooler kit.

Here's the link

Speaking of cwr I have an intercooler kit with a nice cf duct availiable for a lucky fd owner. ;) PM or e-mail me for the specifics, and pix.

hey tyler,anything on the review of the oil cooler from rotary extreme??
thanks,mike

You say overkill...but would it hurt to add them just incase you wanted some extra cooling?

I can't talk bad about Duane becasue he helped me out of a jam when i was originally installing mine. One of my AN-10 adapter fittings broke during installation and he got me another one ASAP. That was two years ago.

This past week I had one of the oil lines from the kit break on me. I am going to replace it with one of my own making. I will size it up and let ya'll know what I end up with.

Time to start digging around the shop to see if any Caterpillar Diesel parts will fit, hmmmmmm..........

This is the problem I have with "upgrades" or "reliability mods". In many cases they are not more reliable and usually they are less reliable. Very little R+D goes into most aftermarket stuff, and even less testing.

An oil cooler line/fitting breaking is very rare for FDs and there are Tens of Thousands more OEM systems in place than aftermarket. Here we have 3 cases of broken aftermarket oil cooler fittings. IIRC CWC uses aluminum fittings vs. the factory steel fittings.

I've seen the mounting brackets for the CWC coolers, funny how their larger oil coolers can be supported with .030" (about) aluminum brackets when the stockers need ~.070 STEEL brackets.

We all know Mazda was trying to save weight too...

Jeff, over all I am happy with the system and set up of the system and for my purposes the CWR kit is much better then my single stock cooler.

Maybe the reason Mazda used steel was because it was cheeper then a mass produced aluminum cast and some accountant wanted it used for the oil cooler brackets to save money on production costs. Either way this was not the part that broke on my car.

In a non R1/R2 car, has anyone added a passenger side oil cooler to the stock system? I don't mean upgrading to an R1/R2 setup, but simply adding an aftermarket oil cooler to the system in series, and mounting on the passenger side.

I hear you, Jeff. I will point out some of this in my upcoming (sorry for the delay for those who care) review of the RE oil cooler setup. I personally found the design of the CWC setup unacceptable.

I don't personally know anyone who has but there's no reason it couldn't work. It would end up being as big a pain in the ass as installing two new coolers but would save you about $360 (oil cooler and t-stat).

Our kit costs more because we use more expensive hose fittings and hoses. We only use Earl's perform-o-flex braided hose and Earl's swivel seal hose fittings. On top of that, we have the hoses assembled by a hydraulic hose shop that assembles aviation and marine hoses. Every oil cooler hose is pressure tested to at least 1000 psi. Yes, 1000 psi.

http://www.rotaryextreme.com/pressuretest-1.jpg

http://www.rotaryextreme.com/pressuretest-2.jpg

For oil cooler mounting, we use 3 brackets per oil cooler. I believe CWC only uses 2. Our oil cooler is also bigger. Another advantage is that it does not require you to take off the A/C compressor and the power steering pump to install.

I just want to point out our oil cooler kit costs more for reasons.

Chuck Huang

Chuck,

Maybe I'll have to talk to you about a group buy instead;) I have always been impressed with your products.

Hey Chuck, those are my cooler lines being tested! :)

Even if we do a group buy, I can't really drop the price by much. My cost is fixed no matter how many I make. The major cost is to have those lines assembled by the hydraulic hose shop and pressure tested. They don't give me better deals because I give them more hoses to make. They are extremely busy with aviation and marine hoses that I kind of have to beg them to make those for me.

I also don't want to reduce cost by using inferior parts. I have tried those cheaper lines and fittings but they don't pass pressure test. The hose fitting even blew off at merely 400 psi.

So to reduce cost, the only way will be using inferior parts and omit pressure testing. I don't want to do any of that to make my products less reliable. I rather make less sales than worrying about people blowing engine due to oil leak and get into an accident due to oil splashing onto the tires, etc.

Chuck Huang

Yeah, aren't you happy that you know your oil pressure will never exceeds that? ;)

Chuck Huang

Ask 7racer how his engine died????
I don't want to say the oil cooler kit he had installed, except it was not from rotaryextreme.
The oil line bursted and I qoute 7racer, "no oil no motor".
I would trust these hoses, that RE(Chuck) offers in this kit if I had a need for my R1.

The oil coolers fit tightly into the carbon fiber ducts, helping to support it. The bracket really takes very little of the load. This is assuming you are using the stock nose. There have been some cases of failures but there are many CWC kits out there. The majority don't see any problem. The 2 places to keep an eye on is the 90 deg bend from the engine to the thermostat, and the brackets you mention. I've had mine on for over 2 years of track and street use without a problem and I check it regularly. It helps to make sure everthing is installed with no interference and sleeve all potential places where it might rub against another part.

Mark

chuck is that the updated price on your site for the oil coolers. also what is the wait time after ordering?

thanks,mike

I'd also like to see pictures of the ducts, assuming it comes with ducts. I'm also wondering how important the pressure testing is and how many lines that are tested fail the test. I mean if the higher price tag is in the testing and no lines have ever failed I'd probably like the option of buying a kit without the test.

All the prices on the website are current. The lead time is about 2 weeks.

Chuck Huang

The RE kit doesn't come with ducts, and doesn't need them IMO (more in my finally upcoming review). You should ALWAYS pressure test a/n lines and fittings. Just because most don't, doesn't mean they're right.

My oil cooler kit does not come with ducts. I have found the duct to be unnecessary with this particular oil cooler which sits all the way across. On top of that, a duct only works with a particular bumper. Once you switch the bumper, you can't reuse the duct.

If you switch to an aftermarket bumper with a bigger opening, the duct actually becomes a restriction since it can't take the advantage of the larger oil cooler opening on the bumper.

The oil cooler kit Rynberg has does not have ducts and he has a hard time to make the oil temp to go over 180F.

I do not know how many lines failed since the hydraulic shop takes care all the assembly and pressure testing. When a hose fails, it will be reassembled and pressure tested again to see if it holds the pressure of 1000 psi. If it fails the second time, the parts will be disregarded.

Due to liability, I simply will not offer the kit without all the hoses pressure tested. I believe taking cautions on a vital engine part is a lot more important than saving a couple of hundred dollars. If an oil line fails, you might lose your engine or even your life if the oil gets onto your tires.

Chuck Huang

yup...mine failed at the 90 degree bend

mine failed at the 90 degree bend as well...TWICE!

also because of the stupid location of the thermostat you won't be able to run a FMIC unless the radiator doesn't require modifications