TURSTY

Im simplifying and tidying up everything in my race car and the next thing on the list is all the lines.

Im going to braided line for the power steering lines from the pump to the rack and want to know if anyone has done this before? Im after the thread sizes for the banjo bolt on the high pressure side of the pump and the flare thread size on the rack itself so I can order the fittings. - Anyone got these?

Also - has anyone gone to braided line for all the oil cooler lines while retaining the factory oil coolers? How did you go about attaching to the bottom of the coolers? there a massive thread and will need some sort of adapter fitting to attach an AN fitting to. Any ideas?

Railgun

I can't comment on the PS as I did a manual conversion. As far as the oil coolers, I had -10 fittings welded on in place of the original ports.

TURSTY

Ive managed to work out what is needed to do the oil coolers and have found a kit for the power steering side so will post the parts when I get it for interestes sake.

If anyones wanting to do the oil coolers (factory twin oil coolers on my FD) in -10 braided line, this is what I ordered

4x Steel -10 weld on fittings (oil coolers)
4x -10 straight fittings (oil coolers)
1x -10 120* fitting (oil pump)
1x -10 45* fitting (oil filter)
2x -10 to M18x1.5 Thread adapters
-10 Braided line x 3m (or 10 feet)

HalifaxFD

iTrader: (18)

thanks for the info, I may have to do it because of my new vmount. Please post pics of the end result.

TURSTY

I have actully found that you can replace the whole oil cooler lines without welding anything at all if need be. The factory coolers have M22x1.5 threads in them so you could use 4 M22x1.5 to -10 adapters on the oil coolers them selves instead of welding the -10 weld ons to the coolers.

I will be running the lines this weekend so should have pics up next week.

Fortune_Seven

iTrader: (24)

Interested in seeing your install pics!

smog-guy707

iTrader: (11)

nice i might end up doing the same thing i cant wait to see pics too!

Scrub

iTrader: (25)

This is back when I considered making upgraded cooler lines for the stock coolers, test fitment

Fortune_Seven

iTrader: (24)

Wow that looks great! exactly what I want!

TURSTY

I remounted my coolers so they are in a better place in relation to the vents in my bumper and will be ducted to the bumper. I also started installing the fittings so pics will be up after the weekend.

Best part about doing this now is that swapping to aftermarket oil coolers later is soooooooo simple.

TURSTY

Ran the oil cooler lines today. Still need to get some hose holders to mount them to the body and stop them distroying everything they touch, but you get the idea.




Make sure you can go full lock without the tyre rubbing on the lines.

Fortune_Seven

iTrader: (24)

Going to do this as well looks great!

So other then the parts you listed below, did you find you needed anything else, would recommend anything different?

4x Steel -10 weld on fittings (oil coolers)
4 M22x1.5 to -10 adapters
4x -10 straight fittings (oil coolers)
1x -10 120* fitting (oil pump)
1x -10 45* fitting (oil filter)
2x -10 to M18x1.5 Thread adapters
-10 Braided line x 3m (or 10 feet)

Scrub

iTrader: (25)

Not really. Yes, you removed the stock lines which makes installing new coolers/lines easier. You'll still need to use different fittings on the hose. There are a lot of things you are not considering. The line running from the pedestal will need to be split and connected to an oil thermostat also.

I don't know about you, but I hate working with steel braided line.



You don't need that if you've already got M22 adapters. Did you even bother reading through this thread?

TURSTY

Yes I did.

Like I said above, I used M22x1.5 to -10 adapters in place of the weld on fittings so the oil coolers are undamaged. Using these however, you need to get 4 M22 copper washers, as the washers on the standard oil lines have a rubber center and dont seal. The copper washers off the standard banjo bolts for the oil pump and filter can be reused for the M18 to -10 fittings.

Also, as my oil coolers are remounted for my current bumper, you should check the straigh fittings off the oil coolers will still allow you to go full lock without the tyre hitting the braided lines. If they dont, go for 45* fittings instead of straight.

You'll also need some form of mounting for the hoses to the body, as the braid will wear through anything it touches. Its abrasive as h3ll.

EDIT: Oh and get another 2 feet of hose (12 feet total). Apparently I cant use a tape measure lol.

Brent Dalton

iTrader: (31)

Looks good. I also did this a while back, but it was because I have a different engine in my car and I like the stock oil coolers:



Catch22 had a thread where he did this a month or two ago. I believe his was because he was adapting another driver's side oil cooler for the passenger side.

bajaman

I like seeing these nicely done conversions. Very professional looking from everyone. Good job!

Fortune_Seven

iTrader: (24)

Well Scrub, I did read the entire thread, it should be obvious by my posts throughout, but apparently not to you. To clarify why don't you "bother" reading through this post.

As both fittings are options, dependant on wether you want to weld or not, I included them in the list.

The information I was after, was clearly the information TURSTY provided. The "did you find you needed anything else?" part of my post u must have missed.

But thanks for your help in any case!

TURSTY

Hay one thing I have notised while remounting my intercooler and radiator, it that the location of the bottom radiator hose will play a part in whether you can use a 120* fitting for the oil pump, or if you would need a 180* one.
I am going to have to swap to a 180* fitting to clear the bottom hose.

I have never owned a stock RX7 (only ones with front mounts and aftermarket radiators) so I cant say if the list I have provided will work on a stock car. It would definitly pay to have a look at how much clearance you have. These lines will distroy anything they touch/rub against so make sure you have sufficient room.

Scrub

iTrader: (25)

Read post #5 genius.

Fortune_Seven

iTrader: (24)

I have captain lacking a grasp of the obvious. You don't have to weld to the coolers, we all know that, or u can! So! Not the conversation. But again you've been invaluable! Thanks for the great contribution!

catch-22

iTrader: (2)

Just got done with this myself. I was able to find a new fitting that was a ton cheaper. Check page 5 of this thread. https://www.rx7club.com/3rd-generation-specific-1993-2002-16/dual-oil-coolers-cheap-633480/page5/

catch-22

iTrader: (2)

Oh and mine was using a drivers side cooler.

Scrub

iTrader: (25)

Edit: Tursty, PM me when you're looking to go the aftermarket oil cooler route. I'll give you a break down of all the parts you'll need for the conversion. Also try using some adel clamps (reference 2nd pic memphis posted) to hold the lines in place if you find they're rubbing the wrong places


I was actually trying to help you initially but it's pretty obvious you're the smartest person alive. You listed both parts as being needed, I corrected you. Yes you CAN weld the fittings on but WHY would you? I'm done arguing with you, good luck with your build

Those are actually the same fittings I used when doing the test fitting, very nice quality and you don't need to use a crush washer or dowty seal.

Taken from the thread you posted....

TURSTY

^^^ those look like the exact same fittings I used on my oil coolers, but they didnt come with a rubber o ring. Just shot down to the local fastners supplies and got M22 copper washers.

Ive mounted the lines using those same rubber lines clamps. Ill post pics once the 180* fitting has turned up and its all complete. =D

TURSTY

Heres a few pics of the finished lines

I used Rivnuts and the hose holders to keep the lines from rubbing on things, and anywhere they touched, I just covered the braid in wireing wrap.