Agreed. An air:oil cooler is much better at shedding heat, but to keep it streetable in cold weather, the cost of extra parts plus the basic kit itself make it a much larger financial pill to swallow. If the car is a dedicated track rat, then I'd do it, but if you're going to daily it and only hit 3-4 track days/year, then the NED setup seems a better solution when you factor in cost, plus the added bonus of getting the oil to operating temps quicker. Everything is a compromise in some way...

There is Jackson Racing dual radiator/oil cooler which is is liquid-to-liquid and suitable for daily and winter driving.

True, but at ~$900 plus shipping, it's the most expensive solution yet. But if you're buying, I'll take two. :)

Price is just like a catback which has no function other than sound. I will actually buy the dual radiator instead which will help with performance and reliability by keeping the heat in check. I think it is well worth the price.

I have the STI OEM oil cooler but I don't think it is helping enough with my FI engine.

Haha.... oil pressure. Variable valve timing is driven hydraulically.

But, yes. No matter what the oil temp, change it and the filter regularly and don't run your oil level too low (or too high!) :thumbsup:

And enjoy a good cup of cappuccino every now and then.

OP is NA, so issues associated with FI don't apply here. The JR radiator is nice quality, I'm sure, but for that money he could get a Koyo or Mishimoto radiator AND the NED setup and still have money left over for a couple of trackdays...

3-4 days a year is a lot. And $500 is still a lot cheaper then a new engine.

But it's OP's engine. Like I said, simple data logging would give the definitive answer. No need to upgrade the radiator on this car as nobody seems to have hit its limit yet

Here in aus down under , things don't always work in a logical dollar cost way.
If someone owns a painting business and a petrol station , guess where any bulk unusable chemicals might be going.
Here , diesel , E10 and 91 are suspect.
Because of oil companies marketing 98 as their cleanest , best grade fuel , contamination of this is very rare.

I saw a documentary about the fuel situation there once.

http://bavatuesdays.com/files/2012/0...10-Ch12-01.gif

You know what? It's all because the sensor people like to watch is all about pressure, otherwise I'd be a lot more confident I know nothing about it. Silly assumptions. They didn't teach me much in drawing class about hydraulics, I've gotta say. Well, sometimes the one (male) model that was pierced, I guess if it was a bit chilly it could cause some embarrassing hydraulics demonstrations...

I'll stick to the cuppa. And the machine has a leak somewhere, I'm guessing at the heating element again. Gotta roast more decaf too, I like it shaken over ice with a bit of goldschlager and bailey's and kahlua in the mix, but I'm out... boo.

Radiator upgrade alone will not help on track. What's needed on track is, first of all, an effective oil cooler. AND NED setup is not sufficient for track, even for NA. These are discussed and confirmed so many times in this forum. I wouldn't risk my engine to save just a few hundred bucks.

Just thought I'd throw in the 2017 UK has an oil temp gauge and it stabilises just over 90*C and pretty much stays there. I haven't ragged the car yet though. When the 1000 miles are up I'll get to pin it to the red line a few times and see if the oil temp rises much.

As to reliability mods. Velcro sticky strips for the rattles would be good.

I didn't say just to replace the radiator alone. And there's plenty of people who say NA needs no additional cooling and choosing the correct oil is the more appropriate solution, so the NED is a fair compromise. It does 80% of what an air:oil cooler does for less than 50% of the money, and has added functional benefits that air:oil units don't. And I only brought up the radiator replacement because the JR unit IS a radiator swap. My point was you could replace the OEM radiator with a better unit AND get the NED cooler for a fraction of the price of the JR.

Don't get me wrong - I'm not saying the NED does a better job of cooling oil than a more expensive air:oil unit. I'm simply saying that for someone with an NA motor and NO oil cooler at the moment, the NED cooler is the best value in terms of price versus effectiveness. And as far as 'risking' the engine goes, you seem to be willing to risk your motor and the rest of the driveline by going forced induction, so be careful in that glass house.

Is there a way to supercharge your engine WITHOUT sacrificing reliability? What about all those cars that come from the factory with superchargers/turbochargers? Do they have a higher maintenance factor built into the warranty, or is it a matter of pushing the tolerances to the limit?

I know Mitsubishi's EVOs had a more frequent maintenance schedule than the simple Lancer, same with the STi version of the Impreza.

https://hips.hearstapps.com/roa.h-cd...27-evovsti.jpg