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PART 1: INJECTOR SWAP. Remove the PCV valve and hose. You'll have to move the clamp on the other end with pliers.
Four screws, but use a wrench, to remove the Idle Speed Controller. Just lift it out of the way with the hoses attached.
The yellow arrows show the two bolts holding the fuel rail...that's it! The red point to the connectors. You pinch the top and lift them off with your other hand. I couldn't pinch and lift...odd physics at work! ;-)
Pull the fuel rail off the injectors and you can lift each out of the manifold. Do NOT drop the insulators off the end of the injectors, NOR the 2 insulators between the fuel rail and the manifold when you take out the bolts. Otherwise, climb under the car, blow with air, hunt and hunt....don't ask! ;-)
Stock 1.6ers on the left. Arrows show from left to right: insulator, grommet, O-ring. I was told the insulators would crumble, they didn't! I'm going to return them (40 bucks worth). They say you should replace the O-rings, cough. I oiled them with Mobil 1, does that count? No leaks so far. Ok, now just reverse order of the other pix to put them back. 'Bout the easiest mechanical job I've ever done on the miata!
PART 2: BOOST INCREASE! The actuator rod (ok, I forgot to take the picture, forgive me!) goes from the actuator on the left to the wastegate on the right.
Here's the wastegate lever. You need to SHORTEN the rod to up the boost. It's about a full turn per 1psi.
The problem is that at 8psi then rod is about as short as it's going to get. See the jam nut is very close to the actuator support bracket? It is suggested you trim the rod (female) and tap it so you can get more...the other option is to shim the actuator away (further to the left)...I don't have room! Or buy a boost controller to do it via the boost signal line. We (uhh, Harry) had a better idea!
Grind the UNDERSIDE of the other end (wastegate end) so that....
when you have enough clearance on the bottom....
You can just drill a new hole and thus shorten the rod! Cool huh?
This is set at 12psi now! I think there is plenty of thread to safely go down to 7psi or so. (Who the heck would want to do that!?). Don't forget to retighten the jam nut. Hey, how's about signing the guest book? I love reading that stuff... ;-)