Clocking your turbo.....

[eazye2000]

Mods, feel free to title this accordingly.

So I got bored today, and read a little bit on Garrett's website. I found something that interested me, and sort of disagrees with with what we all know(think). This, I'm assuming, only applies to ball bearing turbo's. Or at least the turbo's with water cooling.So here's a cut and paste of what I read. Take a look at it, and tell me what you think.

***********************2. Water port orientation is critical for thermal siphoning (coolant flow through the center hsg when the engine is turned off) and turbocharger durability. Rotate the center housing so that the oil drain hole is not perfectly located at the 6 o'clock position. One water port should be slightly higher than the other. Connect the water line that is at a higher level in the engine cooling system to the higher port on the center housing. Then connect the remaining water line the lower port. Having the ports at a slightly different level will allow thermal siphoning and prevent air bubbles from getting trapped in the center housing cavities.***********************

.......discuss

[480sx]

Well since thats from Garrett i mean i cant see how they would be wrong.

However, im thinking this is more geard to those with ceramic ball bearing turbos where water cooling is critical. Im thinking that it wouldnt make a huge difference either way. If you allow your turbo to cool down after a hot run, your turbo life will be long.

In the interest of doing things to the book though i would go ahead and take that advice and clock your turbo accordingly. I might try this on my car, its easy enough to rebend those hard lines slightly.

[DunnJH4]

Is your question on why they hook the hoses up like that? From my nuclear propulsion knowledge this sounds like they got it right if I am reading correctly. A lot of my gear send the cold water in at the top so that it naturally flows down to the outlet pipes, thereby aiding in "natural circulation." On such a small scale I imagine it is almost negligible though, just make sure you let it cool down or use a turbo timer.

Hey 480, I saw that you are in Manassas Va. I lived on the edge of PWC and Loudon. Since I MIGHT get out of the Navy soon and move back up there I was wondering if you work at a tuner shop or something up there, or if you know of any you would recommend. I'm getting over my head on my 300zx!

[eazye2000]

Oh I totally understand why they want the sides, or water inlets/outlets at different heights. I was just wondering about the oil drain. People always freak out when your drain isn't at a perfect 6o'clock position.

I dunno. Just threw it out there for everyone to see. Maybe someone will actually search, and read this thread.. (lol)

I think I actually hooked mine up a little crooked on accident really. I'm just not sure if my water sources are one higher than the other. I think I pretty much got mine from the same places that 480 got his from.

[480sx]

I havnt really used any of the tuner shops around here but theres a high dollar one in manassas itself that seems to be a top notch shop. PTuning, but i cant recommend them iv never used them.

I dont work in a tuning shop but i do all my own fabrication and welding, as well as installs/swaps.