Just finished up the rearrangement of my BOV installation on the '89 ES, I figured I'd post the pictures because I alway found it helpful to see how other people did theirs so I knew what would work and the various parts I'd need.
This is what the car originally had when I got it....
along with the pipe for the BOV and the cone filter
I didn't like the way the pipes were done, the cuts were rough, the elbows were barely holding onto the pipes and the adapter pipe for the BOV didn't let me put a filter on the exhaust so I made up my own arrangement.....
This worked nice, but I didn't like the cone filter placement, I did a lot research and even wasted some money buying some different parts to try to fit in there so that I could duct the filter to the nose, or the inside the fender or anywhere it would get cool air. I even thought of having an adapter made up put in the nose where the air comes into the SMEC, but that area is real tight, and there is a bunch of other stuff in the way - so even if I did make something that worked it would have had small ducting, which I wasn't too sure about doing either. So I just started thinking about the stock setup, which accomplished all the needed functions, except for the problematic factory BOV. So I started researching more BOVs and came up with this configuration.
The key was finding an adapter for the BOV to make it fit the stock BOV hose. The BOV is a cheapy EBAY, but does the job and is all metal construction (no blown diaphragms). The adapter had to be glued to the BOV (use either epoxy, or RTV or whatever you prefer), and I had to get a 90° fitting for the top of the BOV. Other than that it's a really clean installation, is pretty stealth, very quiet (only slight sound from the BOV can be heard) and will let you run those higher boost levels without blowing out the factory BOV.
So there it is, hope it helps someone some day, I could have saved myself a lot of time and aggravation & quite a few bucks if I had seen something like this when I first decided to start changing things around.
Slowboy Racing, Inc. :: Mitsubishi :: DSM :: Turbo Accessories :: BOV Flanges :: Turbo Smart :: TurboSmart Hose Adapter Fittings
LANCER MIRAGE BOV TURBO BLOW OFF VALVE TYPE H-6 B08 : eBay Motors (item 290373359632 end time Jan-21-10 20:14:33 PST)
And since I titled this a pictorial thread, I'll include the BOV installation on the '89 TII Shelby, easiest way I found to put one in and keep things as stock as possible.