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I've seen people blow their motors saying "But the wideband looked fine" only to find later that they were just using it as a gauge. I do apologize for inaccurate information with the Lexus/550s. If you do that mod properly, (Which is to say with at least the adjustment screw all the way in, if...

A wideband is useful as a tuning device. If you are tuning it yourself, then it's useful. It's also something that you'll have to look at datalogs for (Or peak/hold values) since you'll probably be busy looking at other things while your engine is at its peak performance. It also does you no...

No. The MAFT isn't overkill. The MAFT is "Did I say 300HP? I meant 450. Maybe 500. Or was it..." I would say that the 3" exhaust is a better idea though.

I'd have to find pics of when I installed mine. For the bend, yeah, it's pretty close, but if you've got it on the hangers correctly, it really should be fine. I had a bit of a flat spot where some killer speed bumps in my old condo parking lot (Lots of SUVs were driving too fast in the...

Next reply is #666. That charge pipe looks good to me. You should only need 1 2" coupler. That's a tiny bit smaller than the factory, but it's really tiny, and a 2" coupler will work fine. Mine is 2.5" because I have a larger compressor housing, but that's exactly what I'm using, with the 45...

AFAIK, the A70 came with 4 different rear end gears. Lowest to highest: 4.300:1 came in the NAs of all years. Some limited slip, some not. 4.100:1 came in the JZA70 TTR trim level, Torsen limited slip. 3.909:1 came in the '87-'88 MA70 turbos. 3.727:1 was the tallest, and came in the '89-'92...

Given a 3.727 differential, and assuming that 4th is 1:1, if you revved to 7,200 RPM, 225/50R16 tires would be at 142mph. A 3.909:1 differential would bring that down to 136mph.

First off, look at what it takes to do a proper MHG. The block is already completely torn down, as it needs to be decked. The head also needs to be completely torn down as it needs to be surfaced as well. The difference is basically if you hone the cylinders and replace the rings and bearings...

The sensor's "units" are in Hz, Volts, or Ohms. What's different for an American dashboard is the markings on the dials that give you numbers. Unless the year is a mismatch, and the sensor electrical connector is different, there would be no difference between the JDM and USDM parts. Some...

Start with more specs on your rebuilt motor, other than .020" overbore. What pistons, bearings? Are you going to go with aftermarket (ARP or the like) fasteners for the mains, rods, head? Does your machinist know that the block deck must be surfaced with the lower timing cover installed? What's...

@IJ Canada has free trade with the US and as such we don't pay a tariff on goods but the brokerage fee charged by UPS is barely short of robbery. It doesn't happen with other couriers' so I can't see why they charge so much . Unless other companies are charging more up front (though they don't...

I have stopped using US vendors who insist on shipping via UPS only, both for personal and business purchases. The last time that I used one particular vendor who assured me that they'd use USPS Global Express, I ended up paying UPS $73 in "brokerage and taxes" on an item with a declared...

If you're going to use the stereo (or ashtray) area to mount, then it's actually pretty easy. The S3 is a bit big for the ashtray area without cutting, but it's also thin enough that you could easily rig the mount in front and it won't protrude much. An iPhone 4s could probably be recessed into...

Warm idle should be closed loop, so that should be stoich. Cold idle should be rich.

What kind of phone? Are you planning to stay with something fairly standard, or do you want to do something a bit more fun? I've been looking at doing something with an Android tablet. I think that a 7" LCD that can do HD video as well as talk bluetooth to the stereo system might have some...

No, you cannot use a W58 transmission mount on an R154, nor vise versa.

-20 what? If that's inches Hg, then you should only have that when using the engine to decelerate the car.

I've always heard it pronounced that way, and I guess that I never really read past the "x".

How the Hell have I been missing that fact for the last 30 years?

Had a cheaper aftermarket water pump on my GE (for about 6 hours) where one of the blades on the pump hit the water channel in the lower timing cover. Stopped the pump dead on my drive home. Zero warning, just the alternator belt went BANG. I stopped the car before the temp needle even blipped...