hey. i'm inches from buying an HKS turbo-timer type-1. do i need to buy the US spec one? i hate black... i have a 2004 wrx wagon BTW. thanks.

 

no its not needed, but its not a bad idea to get one. our turbo is oil cooled so when you shut off the car oil is still in the turbo. but hey it eases the mind.

 

I have the type 0 and it suits me fine.
I only use it at the track or after hard driving. Changing to synthetic will also help prolong life of engine/turbo. The type 0 also gives you a voltage meter w/ alarms. This is nice if you have a powerful stereo system.

Here is a link w/ a pic of my install and some info:
https://www.i-club.com/forums/showth...threadid=29491

 

The stock turbo is oil AND water cooled. On a stock turbo even with more boost, you dont need a turbo timer. However for piece of mind, you can get one as it's a cheap investment.

 

and its cool to walk away from your car while its still running!!!!

 

I think it's a big waste of money. I'd rather get attention with a BOV.

 

I do ghetto timer. . . . just sit in your car for 30 seconds and wait for the car to chill out. Good Luck.

WRX Rush

 

http://www33.brinkster.com/cammiecam/turbo.htm

 

Thanks for the link, Peaty. Good information there.

 

 

thanks.


good pics peaty. quick question.... what does it have to do with turbo timers?

i wish i knew what most of the things did.

 

ok... do most people here use j-spec turbo timers? i mean if it's measuring in kms... wouldn't that mess up? mph and kmph don't match. haha.

 

The pic shows that the turbo is cooled with coolant fluid,even after you shut off the motor it will circulate around the bearing making a turbo timer something you don't need.

Look here at page 5 under turbo cool down procedure:

http://www.endwrench.com/current/win...03/insider.pdf

 

Here's some more info I picked up at http://www.spdusa.com.

"The use of turbo timers to shut the engine off some preset time after the ignition key is removed was needed in the old days. Early turbocharger bearing housings were only cooled by the lubrication oil of a running engine passing by the turbine bearing. If the engine was shut of when the turbine was still very hot excessive heat wick into the turbo bearing and seal area, cooking the oil to black carbon, causing bearing/shaft failure and heavy oil consumption. The newer (for over 15 years now) style turbo housings are water cooled as well as oil cooled. The original EJ20 Subaru turbo motor took advantage of water cooled bearings from the start and have never had this problem due to a unique design feature we will now explain. It is the reason you do not need to purchase a turbo timer.

The Subaru WRX engines have their water catch tank high on the engine above the turbocharger. It is that little can where you check the water level. When the engine is shut off the water continues to circulate via a physical property of water called a thermal siphon. Simply put, hot water rises up to the catch tank, being drawn from the relatively cool cylinder head water jacket up through the turbo housing. This nifty little idea works every time you turn off your engine.

One still needs to take a cool down lap at the track and perhaps should not stop at the top of a mountain pass to enjoy the view if you have been on the boost all the way up, but for the other 99% of the time there is no need to let the engine idle for a minute before shutting off ignition. Even when the engine is off, the cooling water will circulate past the turbine bearing housing."

 

just watch out if you turn off your motor a lot after heavy boosting. you'll boil off coolant so keep an eye on the coolant level. as long as the catch tank has coolant in it you're fine.

i lose about a quart in 30K miles....in CA in the summer with the AC running 97% of the time.