rx7learner

I have my FMOC installed using the aluminum L brackets pictured. The FMOC is attached using the FMOC's factory bracketing that has the rubber dampners to the L brackets. The L brackets are attached by U bolts to the tube on the bottom and the L brackets are bolted up top to a metal lip that protrudes downwards towards the tube. Since I have A/C the FMOC is installed facing forward above the bar as shown.

I think the FMOC is upside down... does it matter?

Also... as pictured I cut the hose clamps off with the dremel so that I could remove & reuse the fittings. I then purchase oil cooler hose also pictured. I plan on double worm clamping on each fitting (4 clamps on each line 8 clamps total).

Will double clamping suffice?

I purchased the oil pedestal from another member in the FC forum and it has 2 holes tapped for guages. Right now I just want to plug those holes but I could not find the size plug.

Does anyone know the size fitting for those holes?

Hoping to finish today...

3rd and final 7

iTrader: (9)

here go to trochiod profile https://www.rx7club.com/members/trochoid-48364/ and he has a write up on how to this 2nd gen FMOC upgrade. yours does look like it is upsidedown, put your L bracets on the inside of the bar that you are already mounted to and flip you oil cooler right side up. as far as the pedastol im sure find some plugs for them they are most likely 1/8 ntp most of them are!

trochoid

iTrader: (6)

Yep, it's upside down. The plug on the side goes to the bottom. Don't use worm clamps, find solid ones instead, only if your hose will work with them. When you double clamp, reverse the pair, they will seal better that way. I'm not a fan of band clamps, when they fail, and easily can, the oil disappears very quickly from the engine.

rx7learner

In order for me to flip it I need to face it opposite and there is not enough room with my A/C installed. I wanted to know whether it mattered that it was upside down otherwise I really need to get creative (or some really long lines so that they can enter via the passenger side into the cooler)?

I'm just going to bring the fittings down to a hydraulic shop and have them get rid of the length of hard line on the 1 fitting, braise on an end and fasten up some new line to be safe (as mentioned in your write up Trochoid).

trochoid

iTrader: (6)

Go back and study the pics in my write up. It's better to redo the bracket if needed, rather than run long lines. I had to trim the side shroud of the radiator with my positioning.

rx7learner

I studied them but what you have and what I have is different.

I know a picture says a thousand words, but here are all of the A/C lines / dryer / condensor that are in the way.

Did you relocate these?

I guess it must be a really stupid question regarding mounting the cooler upside down.... Does it have to do with air flow or something?

3rd and final 7

iTrader: (9)

have you tried leaving the L brackets where that are and just flipping the OC right side up. you can also lean the oil cooler alil forward if need be. and it should be fine bc the Rx7 comp manual sayes that it can be mounted up and down on its side. i ll find it and show you.

rx7learner

Great Idea 3rd and final 7...!

Going to look at that option now.

rx7learner

Nope... flipping the cooler the way it is supposed to go and mounting on the inside of the L brackets while tilting the brackets and cooler forward is presenting a couple of other problems with the a/c dryer, u-bolt position, and the banjo bolt. However on the flipside (no-pun intended) It fits perfect upside down & backside forward.

Is it because this method of mounting hasnt been done before? I look at the fins on both sides of the cooler and they appear to be the same. As far as the oil flow I would assume that since it's running under pressure orientation doesnt have an impact. I could see where distance would... but I'm still not sure that upside down and backside forward is a bad thing... especially for all of us FB owners with A/C that want an FMOC. I just dont want to take the risk if someone can say why it is a bad thing...

trochoid

iTrader: (6)

The oil coolers are a dual pass type, with a thermostat bypass. Until the oil is heated enough for the bypass vavle to close, much of the oil simply passes through the end tank. Once the thermostat closes, it forces the oil to route through the cooler.

Other than having the thermostat on the bottom for the convience of using it as a drain, I honestly don't know if either position would make a difference, at least none that I can see.

rx7learner

Thanks trochoid. I will mount it upside down and just keep close tabs on the pressure and temp.

It just makes it so much easier to mount and route the hoses with the a/c condensor and dryer and lines in the way if its mounted this way.

Once I get the lines put together at my local hydraulic shop and get everything mounted up I will put a few more shots up. Thanks again.