Keep something else in mind...load on an Auto may not be as great initally, but you can build boost with your foot on the brake up to TC stall. Also, boost does not fall off during shifts...it continues to build...no BOV pssssttt sound like you hear on a manual shift.
Actually the same thing (passing air), but the valve limits coolant flow to achieve warm-up faster. I discovered some time ago it limits flow a bit too much and taking it off has a lot more positive vs a negative effect.
If you get a new thermostat, either use Toyota or a Stant SuperStat rated at 190 deg F. You'll also need a new rubber gasket that goes around the outside edge.
Bottom pic:
http://www.cygnusx1.net/supra/Library/TSRM/MK3/manual.aspx?Section=CO&P=8
It's an old school technique that allows a small amount of coolant flow through the thermostat at all times. It does delay warm-up a very slight amount of time, but prevents pressure form holding a weak...
PM Suprarich (SIP Racing), he carries them. Performance wise, not much of a gain. But I can pretty much promise you, the rubber in your OEM dampner (if it's original) is shot...not good for what it's intended to do ;)
Shaeff - I've seen green plastic used on the knock sensors. I assumed it was from the earlier motors, but could be wrong on that. The grey plastic is much more common though. In any case, it doesn't matter...they are the same.
I assume you're talking about a flex section...I'm a believer in them...other folks will disagree. If you hit the downpipe on a speed bump, it dampens the shock to the turbo/manifold. I prefer to fit one further down the pipe though, but that's just me.
In the turbine snail, right above the flange where it mates to the exhaust manifold. This location reads temps as exhaust gas exits the manifold and before it hits the turbine wheel. Once the gas hits the wheel, energy is extracted and the temps drop...i.e. you are not getting a good reading...
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