Anyone running -6an SS lines for external oil cooler?

[project_tsi]

I'm wondering if anyone here or anyone you know is running -6an SS lines for there external oil cooler setup. I have a few friends that have ran -8 and one or two that run -10 lines but is -6 enough? Reason asking is b/c I recently ran a full -6 SS fuel feed line in my car and I have approx 6-7 ft of -6an Aeroquip hose left over, and the 2 straight fitttings needed for the kit I already have. This leaves me only to buy 2 90* fittings, and 4 adapter fittings for the filter housing and the cooler itself. I do know that http://www.diamondstarmotorsport.com/engineparts.shtml sells a oil cooler kit w/ -6 lines but I wanted other's opinion on the subject.

Thanks for your help. P.S. Rep given for good responses.

 

[DSM90AWD]

I have approx 6-7 ft of -6an Aeroquip hose left over

PM me for my address

My OEM 1990 lines are the same 3/8" ID as my -6AN SS hose so should be fine

 

[Enraged78]

I'm wondering if anyone here or anyone you know is running -6an SS lines for there external oil cooler setup. I have a few friends that have ran -8 and one or two that run -10 lines but is -6 enough? Reason asking is b/c I recently ran a full -6 SS fuel feed line in my car and I have approx 6-7 ft of -6an Aeroquip hose left over, and the 2 straight fitttings needed for the kit I already have. This leaves me only to buy 2 90* fittings, and 4 adapter fittings for the filter housing and the cooler itself. I do know that http://www.diamondstarmotorsport.com/engineparts.shtml sells a oil cooler kit w/ -6 lines but I wanted other's opinion on the subject.

Thanks for your help. P.S. Rep given for good responses.

I am. I installed a B&M oil cooler in conjunction with a -6AN line, Earl's AN fittings and 90 degree bends, and topped it all off with an EVO III oil filter housing. I did this to eliminate the 2G heat exchanger/oil cooler, as well as convert my Evo III GT turbo to oil only. The Evo III oil filter housing had to be drilled in one area, and drilled/tapped in another to acommodate the oil pressure and idiot light sensors on the 2G.

I was coming to terms with the same questions that you have, namely whether or not -6 would be large enough for the application I was planning. From what I have seen so far, yes, it works quite well. I do not have any method to measure the temperature of the oil itself, however, due to the heat exhanger in the 2G design, I should see a slight reduction in coolant temperature due to the elimination of cooling the oil. What I measured was this:

Before the addition of the oil cooler, with a 180 degree T-stat, engine temperatures varied from 193 to 217 according to DSMlink. A brand new temperature sensor was used. Most of the time, temps stayed in the low 200 range. This was with the car fully warmed up and cruising, with the higher temps occuring only when the car was stopped in traffic or at a light.

After the oil cooler, again with a 180 degree T-stat, engine temperatures varied from 178 to 200 degrees. This is again after it was fully warmed up, and cruising, with the high temps only occuring in traffic or idling for an extended period of time. Mostly, the car is in the 193 range during cruise and pulls with the turbo.

The bottom line is I lost an easy 10 degrees of coolant temperature due to this mod alone.

The temperature of the oil cooler itself I do not know, but it is mounted in the left fender well of the car, and after a hard run is too hot to touch, so it is most definately working well.

The ONLY downside to this that I can think of is that -6AN fittings are very difficult to work with, much more so than the -8AN. It took me three hours just to get the lines cut and installed properly, due to the fact that the ends were just so easy to fray, even when wrapped in duct or electrical tape and cut with a 100K RPM cutoff wheel. In the end, I found the easiest way to get the ends on was to use an old crank-type 3/8 ratchet, and use a push/spin method to get the AN fittings over the line. Once I figured that out, it was easy.

Hope this helps,
Matt.

 

[mavisky]

I just ordered that exact kit off of diamondstarmotorsports.com , mine should be here tomorrow. I've already helped install one on a friends and the lines look plenty big.

 

[Enraged78]

I just ordered that exact kit off of diamondstarmotorsports.com , mine should be here tomorrow. I've already helped install one on a friends and the lines look plenty big.

I didn't actually order the "DSS" kit. I had Victor Research piece one together for me. They did, however, order the Evo III oil filter housing from DSS, as they were one of the few companies who actually had one in stock. It was essentially the same kit. If I had to do this all again, I'd probably get the Setrab cooler instead, it's much easier to find a place to mount it.

Matt.

 

[mavisky]

The DSMotorsports kit is a rather large cooler, but if you've hacked the bejesus out of the front end like me and some other people it fits just fine

 

[ZiggysDSM]

I am using the 6an lines to replace the stock ones and moved it to the drivers side fender well they work great havent had a problem with then yet no leaks nothing you can also buy adapters so that you dont have to use banjos, i would reccomend that becasue i had the stock banjos brazed and used them and the leaked all the time

6AN are plenty

 

[BrokenTsi]

-6an is plenty big eough. The biggest restriction of the stock setup is the banjo bolts, not the hose diameter.

 

[RoasT BeeF]

I also used -6 aeroquip hose for mine with the stock 90 cooler. Replaced banjo bolt with straight reducer fittings and fabbed up some custom brackets for mounting in the drivers wheel well.

 

[JuiceGsTurbo024]

That kit the DSS kit will fit my 93 motor! i had 90 and took that bad motor out and put in 93 motor so i need new lines! the 90 lines are to big and dont fit! HELP HELP!

 

[kicknurass4fun]

Any update on this topic? I just ordered a SBR oil cooler kit and i was a little disapointed when i opened it and saw -6an lines. I would have thought it should have had at least 8-an, but maybe im wrong? I compared the inside diameter of the -6an hose to the holes on the stock style banjo bolts and the -6an hose deffinently looks smaller. Whats your guys opinion, I would think if your spending the money on ss lines why not go with a bigger size then 6-an? Opinions please.

 

[turboglenn]

Bigger isn't always better, the faster your oil can flow through the cooler, the less time it's in there actiually getting cooled, so your oil would be hotter in theory because of it moving through bigger lines faster. Just like running too cold of a thermostat and the coolant doesn't stay in the radiator long enough for the air to cool it to the potential it could, then the guy askes how he can be running a 160* t-stat and still overheating. And yes, i've really seen that before, I helped the guy switch to a 190* stat and fixed his overheating.

Sorry if that's off topic, but it's a bit of info everyone should have in the back of their heads if diagnosing cooling issues in the future

BTW..my homemade oil cooler setup runs -6 earls lines and fittings. And is cost me less than 50 bucks to make froma junkyard oil cooler from a dodge van/truck and some earls fitting and hose.

 

[DSM90AWD]

Whats your guys opinion, I would think if your spending the money on ss lines why not go with a bigger size then 6-an? Opinions please.

Note that ID of the -6AN hose end fittings (Earl's/Russell) is only 0.263" which slightly larger than the size of our OEM metal fuel lines (0.25"). The flow capacity of fluids is limited by the smallest ID of the run, so worry more about the fitting sizes, not the hose size

 

[kicknurass4fun]

Note that ID of the -6AN hose end fittings (Earl's/Russell) is only 0.263" which slightly larger than the size of our OEM metal fuel lines (0.25"). The flow capacity of fluids is limited by the smallest ID of the run, so worry more about the fitting sizes, not the hose size

So then in your opinion 6an lines are ok?

 

[timloomis]

I've been running -06 for over a year now with no ill effects. It wasnt that hard to work with either. But it did poke my fingers a lot, .

 

[DSM90AWD]

So then in your opinion 6an lines are ok?

I'd go with -8 as oil is a bit more viscous than fuel, and would not want to risk restricting oil flow to the rest of the engine

 

[turboglenn]

I've been running -6 for over 5 1/2 years now with no issues what so ever. If you've got it on hand, i say build it with -6.

 

[timloomis]

I just went with the -06's to save a little cash. The fittings cost slightly more to go bigger. On the fittings that screw into the filter housing, I just used power steering adaptor fittings and took off the rubber o-rings. Ended up spending another $24 on 2 90* fittings off the cooler since the straight ones pointed right at the ground, I was just worried about the lines rubbing on the road on a bump.