Well, I installed an intercooler from whatever the latest generation of turbo RX7 is. It's a fairly small thing, maybe 8 x 20 or so in terms of core.



I found it quite challenging to install an intercooler when I've already got a tube bumper and a winch... Simply put there was no way to get an intercooler on to my front end without significantly dropping the approach angle or starting over with a new bumper.

As such, I decided to integrate it behind the skid plate. For air flow, I built a scoop - No loss of ground clearance, no IC hanging off ready to be damaged. Note, scoop isn't complete in these photos - but you get the design idea.
I have a slight extension of the skid plate - so some impact to approach angle, but not much.








Plumbing the thing was another challenge - I ended up buying a pretty decent selection of silicone hoses - most of which I didn't use. It's a very tight fit. It can be done by the backyard mechanic, using pre-bent tube (exhaust) and a simple abrasive saw.

Results:
I went to an IC after logging a lot of heat soak in my intake manifold.
After being brought up to operating temperature, my intake temperatures could easily be as high as 180-200 degrees F.
Note, stock intake temps are *not* good either - in the range of 125 degrees F - probably due to the level of heat given off by the radiator and exhuast system.

After installing the IC, I see intake temps of 90-104 degrees. That's a decrease of 70-95 degrees, which is definitely worth while.

I'll post up more photos later...