Turbo Timers

by **04GT** » Wed Apr 09, 2008 3:32 pm

Who here has a turbo timer installed in their GT??

If you got pics, post em up, i wanna c where you've all located the timer, cheers y'all

by **GTSPECB STI** » Wed Apr 09, 2008 6:03 pm

I reckon you wont find too many here as your 04 Suby doesn't need a turbo timer. Much better things to spend you mod money on if you ask me.

by **04GT** » Wed Apr 09, 2008 6:05 pm

Really?
We don't need turbo timers?
I thought all turbo cars needed em??

by **tangcla** » Wed Apr 09, 2008 6:23 pm

No need because apparently they circulate the oil even when the car is off.

by **subarugt05** » Wed Apr 09, 2008 6:46 pm

Thats what Subaru says right?!!! they also assume you don't drive hard either...hehehehe.

The turbo is only there for overtaking purposes.
I thought thats why you guys have a turbo car right?!! :cry:

by **CJ1177** » Wed Apr 09, 2008 8:07 pm

tangcla wrote:No need because apparently they circulate the oil even when the car is off.

HOW!!!! :?

by **tangcla** » Wed Apr 09, 2008 9:07 pm

cj1177 wrote:HOW!!!!:?

no idea, hence the apparently

by **Moi** » Wed Apr 09, 2008 9:47 pm

tangcla wrote:
cj1177 wrote:HOW!!!!:?
no idea, hence the apparently

Convection :?:

by **chriskan** » Wed Apr 09, 2008 10:22 pm

the new models are watercooled (coolant), as well, which helps keep some of the heat away from the oil, and prevent it from coking in the main bearing like the older turbos.. so it's less of an issue, but that said.. i still drive the last 500m-1k gently before I turn the ignition off. meh.. can't hurt. A turbo timer won't hurt, but it's not a necessity nowadays for the newer turbos. If you want one, fit one ..

Some info from Garrett:

Oil & Water Plumbing

The intake and exhaust plumbing often receives the focus leaving the oil and water plumbing neglected.

Garrett ball bearing turbochargers require less oil than journal bearing turbos. Therefore an oil inlet restrictor is recommended if you have oil pressure over about 60 psig. The oil outlet should be plumbed to the oil pan above the oil level (for wet sump systems). Since the oil drain is gravity fed, it is important that the oil outlet points downward, and that the drain tube does not become horizontal or go “uphill” at any point.

Following a hot shutdown of a turbocharger, heat soak begins. This means that the heat in the head, exhaust manifold, and turbine housing finds it way to the turbo’s center housing, raising its temperature. These extreme temperatures in the center housing can result in oil coking.

To minimize the effects of heat soak-back, water-cooled center housings were introduced. These use coolant from the engine to act as a heat sink after engine shutdown, preventing the oil from coking. The water lines utilize a thermal siphon effect to reduce the peak heat soak-back temperature after key-off. The layout of the pipes should minimize peaks and troughs with the (cool) water inlet on the low side. To help this along, it is advantageous to tilt the turbocharger about 25° about the axis of shaft rotation.

Many Garrett turbos are water-cooled for enhanced durability.

by **I Wish** » Wed Apr 09, 2008 10:31 pm

http://www.spdusa.com/turbo_timer.htm

by **04GT** » Thu Apr 10, 2008 8:17 am

Thanks for the article there I wish, i ain't needing a turbo timer now woot woot

by **04GT** » Thu Apr 10, 2008 8:17 am

but wait, hang on, that's for stock turbo, what happens when you upgrade to a bigger one? do you need a timer then?

Turbo Timers

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