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Well, since there's oil all over the oil cooler lines, that's suspect, as is the oil filter location itself. Also the oil pressure sending unit is directly above that location, so it also should be checked. And of course, the front main seal shouldn't be neglected. Even if the drip is...

I have a youtube video clip of a 12PSI run. It's just with my phone cam, so it's not great, but it's there. Youtube video clip

Do you know if it's an early model or late model '89? If it's an early model, the wiring harness is more similar to an '87/'88. If it's a late model, then it's more similar to a '90. Look for the production date on the data tag in the driver's door jamb.

Even if/when I get around to getting rid of my AFM, I'll probably leave my BOV recirculated. Personally, I like the idea of people not knowing that I have a turbo, since my car still looks like an NA.

If you're getting heat to the heater core, then the next thing would be to check airflow through the heater core. My car has no problem keeping up with a Canadian winter, even if this has been fairly mild this year. I've always left my climate control on "auto" year round, as this seems to...

Coolant leaking from the throttle body line?

Possible, sure. But the problem is that a drilled hole is not exactly a precision upgrade. In order to be sure that it's a good thing, you'd want to get the injectors flow matched, and then you might as well just spend the money on good ones in the first place. Widely varying flows from...

I'm starting to really wonder about some of these engines. I can only speak for what the stock gauge says about my oil pressure. It's marked off in kg/cm^2 and by gauge position, 1 is pretty low. 1 kg/cm^2 is equal to 14.2 psi. I think the highest I've seen my stock gauge read is 4...

Well, I'm going by the stock gauge... My NA engine ran with oil pressures in that neighborhood for years, and hundreds of thousands of kilometers, too. Okay, at low idle when warm it might drop to 1.5kg/cm^2, but the only time it dropped below that was after the valve stem seals went totally...

4psi? Um... Okay, my car idles with the oil pressure at an indicated 2-2.5kg/cm^2 which translates to about 28-35 PSI. The pressure is higher when the car is warming up, and lower when it's hot, as I'd expect, since the oil will be less viscous. For the record, I have Castrol 10W40 in...

If it started happening when you replaced the bypass valve, that's the first place to start looking. Also, a valve that's being pushed open under boost IS a boost leak.

Well, a 6M is closer in block fittings to a 5M than a 7M. The 6M is basically a stroked 5M to 2954cc displacement. To put a 5M head on a 7M though... Sure. It'd work. To say that the head is weaker... I'll call bull on that one. The head gasket is one thing, but the head itself is...

Stock Toyota fuel filter is actually a really good part, better than most people give it credit for. Good filtration and a VERY long life expectancy.

I used to LOVE those things. I had several differnt t ypes, but the coolest were the ones that had a switch int he bumper so that when they hit something (Like the other car in the set) the hood, trunk and doors would go flying off.

I suppose that's true, however, it's NOT the point to lose metered air. This is why the factory valve recirculates the air back to the post-AFM intake. My point was that venting to atmosphere isn't desirable while using the AFM, and the valve should be recirculated back to the intake. After...

Hey, you build the motor right, and you can go to town on 'er and drive it daily. If you've got an infinite budget, then no problem. However, I bet you (Like the rest of us) have a budget to work with, and don't wnat to waste your money. There are people who will say that the most...

If you get those Venom injectors, get 'em flowtested before installing 'em. If they're installed, I'd probably yank 'em and test 'em anyway if you haven't. I guess there are some Chinese eBay knock-offs of the Walbro pumps around. Might be an idea to verify what you've got there, too...

That's the one that I have, and will be installing. If you vent to atmosphere, expect to have some issues, unless you switch to a MAP based system. While you're still using the AFM, venting that air to atmosphere means a periodic boost leak, with the attendant issues that causes, including...

How's your cam and ignition timing? If you're misfiring, it'll cause all kinds of issues. Your boost gauge pegging means that it's pressurising the intake manifold when it "spits" -- A sure sign of a backfire.

LOL! Nice definition. Most SSTs can be substituted, some with (As you surmise) a piece of wire, though I'm partial to paper clips myself. :) Others take a bit more work, or the destruction of an otherwise general purpose tool so that it can never be used for anything else ever again...