If coolant is flowing through the turbo as well as synthetic oil, is there still a need for a turbo timer?
Obviously, I wouldn't run the piss out of it then shut the car off immediately. I just want to save myself a wiring headache and some money if possible.
probably not especially since the coolant will continue to disperse heat after the car is shut off. If you're using a true Full Synthetic(be careful because some advertise full synthetic when they really aren't anything but refined conventional). then you're not gonna burn it.
But you still preferably want to run the car a while first when you start it if for no other reason than to cycle in different oil into the turbocharger.
I've never heard of this "part throttle" before. Does it just bolt on?
i dont use a turbo timer. i usually just let the car idle for a bit before i shut it off, especially if i was running it pretty good just beforehand, then i try to let it sit for a minute or so.... you dont NEED one, its just another nice thing to have if you want one less thing to think about.
but its not like its that hard to be aware of how you were driving your car and base it upon that.
although i never thought about synthetic oil's affect on it. i use mobile 1 synthetic. that really helps keep it cool?
When i am about to arrive at my destination, maybe the last couple of miles, I will drive easy. This will allow the engine/turbo to start cooling down before I park it. I have water and synthetic oil running in my setup. If you do a hard run and shut it off it will still cook the oil and boil the water when I get out. Turbo timers are for those people who have to get out of the car as soon as they get somewhere because they are always running late and driving like mad.

2004 Cavalier. Razzi. (Sold)
1998 Corvette. Some mods.
1992 Typhoon. Lots of mods.
1994 Civic VX 44MPG