oil cooler, Coyote

[Ejzajac]

Previous production Mustangs with a Coyote came stock with an oil cooler system that the oil filter spun onto. The current crate engine has no oil cooler. I know there have been distant forum discussions in the past, but if Ford engineers thought a passenger car required oil cooling, then perhaps a performance driven mk5 might need one too. I assume there is not clearance between the motor and frame to use a Mustang oil cooler even with a shorter oil filter. The alternative would be more complex with a remote filter system, additional lines and oil cooler set-up. Interested in insight, explanations and opinions.

[Al_C]

You are correct that the cooler that Ford decided to put on earlier versions of the Coyote doesn't fit on a roadster. My Gen II engine came with one. The DS frame rail precludes keeping that cooler in place on a Mark IV. Here's the opinion part: unless you are racing, I do not believe you need one. And yes, I believe that if you want one, it will involve some plumbing. I don't know if they still do it, but my kit came with a remote filter set up, so you'd be part way there by using that hardware.

[edwardb]

Define "performance driven mk5." Street driving or track? In my experience with two Coyote builds and my nearly 100% street driving, the Coyote is a relatively cool running engine and doesn't need anything additional. Removing the factory oil cooler and doing nothing else and they've been completely fine. There isn't room for it on the Mk4 Roadster. If the Mk5 is like my Coupe (which seems it is) it won't have room there either. If you're taking it to the track, an oil cooler in the usual front location might be a good idea. But not something I have any personal experience with.

[Ejzajac]

Thank you for the input. With street driving only, it sounds like the temps will be OK.

[Nigel Allen]

I have an oil temperature gauge on my coyote and it stays within a few degrees of the coolant temperature even with spirited driving. No track use though...

Cheers,

Nige

[MB750]

IMO, nothing street driven needs an oil cooler, unless it's an air-oil cooled engine of course (re: most Harley Davidson engines)

Modern oils are very good at keeping their integrity at higher temps these days and not coking under stress and heat.

[Entropy]

I think half (or more) of the reason for the Coyote factory oil/water heat exchanger is actually to heat up the oil faster on a cold start. Presumably for efficiency / mileage (and perhaps phaser functionality?) to get the oil to operating viscosity faster than it would otherwise.

[Indy Shu]

I’ve run my coupe coyote on the track several times and 210 is as high as I have seen the water temp. I was thinking I would add an oil temp gauge, but based on that I probably won’t bother.