Where is the turbo on an ecoboost 4?

Son rented an xplorer, we went out to look at what motor is in it.  I counted 4 coil packs but could not find where the turbo is.  Am I losing it?

Usually right up next to the head to minimize exhaust plumbing. Ecoboost is rh side of the engine I think?

I believe that these engines have no exhaust manifold; the turbo bolts directly to the side of the cylinder head. While gas flow isn't optimal, it makes for a very compact package, and greatly reduces radiated heat.

If it's fwd layout it's on the backside of the engine tucked way up next to the head in a way that you probably can only see from underneath. (and it's probably smaller than you'd think)

dps214 said:

If it's fwd layout it's on the backside of the engine tucked way up next to the head in a way that you probably can only see from underneath. (and it's probably smaller than you'd think)

Sticker said 4wd but it was not the turbo I am used to seeing or anywhere visible with the hood open.  I am starting to feel like cars are not my thing if I can't spot a turbo on an engine anymore!

Was it the 2l or the 1.6l?  Or the 2.3 or the 1.5?

The current Explorer uses the 2.3 EB unless an ST model which uses a V6 EB in the area of 400 ponies (3.5 maybe?)  The 4 cylinder versions I’ve seen have the turbo integrated into the exhaust manifold, it’s hard to see.

kb58 said:

I believe that these engines have no exhaust manifold; the turbo bolts directly to the side of the cylinder head. While gas flow isn't optimal, it makes for a very compact package, and greatly reduces radiated heat.

Actually gas flow is a lot better- no need to compromise to have tool clearance for every port. 

2.0 Ecoboost - easy to see why it could be missed as it appears to be well hidden

alfadriver said:

kb58 said:

I believe that these engines have no exhaust manifold; the turbo bolts directly to the side of the cylinder head. While gas flow isn't optimal, it makes for a very compact package, and greatly reduces radiated heat.

Actually gas flow is a lot better- no need to compromise to have tool clearance for every port. 

Huh, okay. I was passing on tuners' comments about how they thought that this would restrict the amount of power they could extract from the head, so I dunno.

kb58 said:

alfadriver said:

kb58 said:

I believe that these engines have no exhaust manifold; the turbo bolts directly to the side of the cylinder head. While gas flow isn't optimal, it makes for a very compact package, and greatly reduces radiated heat.

Actually gas flow is a lot better- no need to compromise to have tool clearance for every port. 

Huh, okay. I was passing on tuners' comments about how they thought that this would restrict the amount of power they could extract from the head, so I dunno.

It's both.  Gas flow is terrific at stock boost levels, but leaves little room for the aftermarket to bump it up.

In reply to kb58 :

It's all relative. But for a tuner to expect to get that much more than 300hp from 2.3 l....  times sure have changed. 
My "personal" thing is that they are great for emissions, which also means less impingement, which is also great flow. This is one of those areas that great catalyst light off = great flow/ power.