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10-07-2003, 07:09 PM | #1 |
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The REAL truth about Turbo Timers?
So which is it? Do you need a turbo timer or not?! First I hear that you do... Then recently I hear, "naw... you don't REALLY need it.." Then a bit later, my s**t gets jumped for running my car hard and turning it off. They all tell me that I ABSOLUTELY need one. Then a few of us were talking about it the other night at the Pasadena Starbucks Meet and I hear about how even Subaru says that there is no need for one. I just want to know once and for all, should I spend the small amount of cash and get one, or is it all just 'bling'???
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10-07-2003, 07:12 PM | #2 |
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well..
I wouldn't consider a turbo timer bling but.. Look at it as an extra precausion to take to prolong the life of your cars turbo. I don't swear buy it but I use one. no harm in being careful.
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10-07-2003, 07:18 PM | #3 |
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With a stock turbo, IHI turbo or any other water and oil cooled turbo; you do not need a turbo timer.
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10-07-2003, 07:26 PM | #4 | |
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10-07-2003, 07:28 PM | #5 |
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Turbo timer a good idea.
You can not go wrong outfitting yourself with an ignition timer. Before it was a "turbo timer," non-turbo and mechanical supercharger guys were using the same idea. It's been around a long time, and now you can rig your Sube with one in an hour, for about $150 (think I used the Apex unit). Besides the neato factor, after a hot run it's smart to let oil circulate. Oil coking is not a myth, and it's been happening to fast guys for ages.
Cheap insurance to let your car idle down for a minute or two after every drive. STICK |
10-07-2003, 07:32 PM | #6 | |
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If you are driving hard enough to make the exhaust housing glow and you shut off your engine, the 2 ounces of coolant sitting in the water jacket is not going to do diddly squat. You must follow a cool down precedure under this condition. So... if you have a water-cooled turbo, it is OK to shut the car off without a cooldown period under easy normal driving conditions. Matt |
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10-07-2003, 08:03 PM | #7 |
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The average WRX driver.
Jump in Start WOT brake WOT brake even harder WOT brake (because CHP on the side of the road) WOT (because the CHP cant see you now) Brake (jump out before the engine shuts off) I think we all are spooling fools (At least I am) If only takes a few good times to coke up the bearings at some of the temps that the turbo can get to. And as far as SOA states (Normal driving conditions see above ) there should be no problem..... That turbo can Glow. I learned the hard way. WRXzard |
10-07-2003, 09:50 PM | #8 |
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If you are really worried about it you can save yourself a 100 bucks or what ever they cost and let your car idle for 30 seconds or so after a hard drive then shut it down yourself.
-Marc |
10-07-2003, 10:32 PM | #9 | |
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10-07-2003, 10:42 PM | #10 |
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or just dont drive hard b4 you get there or get one like i did on iclub for 40$ new
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10-07-2003, 11:32 PM | #11 |
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this argument will never be settle....get one if u think u need it
as a side note, i do have one, blitz dtt, luv the peak hold |
10-07-2003, 11:37 PM | #12 |
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didnt i already tell you about this? lol well, for stock cars at least one is actually not needed because the way our cars are cooled, but in fact it wont hurt it if you have one, esp if your car is highly modified or even light tuned it wont hurt muchto have one, its more of a peace of mind kind of thing, the term 'bling' i think is a crock of ****, and is very overated, anyhow, how ya doing janene ?
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10-08-2003, 12:36 AM | #13 | |||
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Quote:
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~ Janene |
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10-08-2003, 12:48 AM | #14 | |
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here's the explanation: once the motor is shut off, the coolant left in the turbo will vaporize and rise to the coolant reservoir tank, which is the highest point in the coolant system. to make up for this, coolant is displaced from the cylinder heads to the turbo. thus this natural circulation (flow caused by difference in temperature) of coolant through the turbo will cool it down, so a turbo timer is not needed on a wrx. whether or not this applies to other turbo'd cars depends on the design of their coolant system. |
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10-08-2003, 01:08 AM | #15 | ||
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The fact is, that the thermal siphoning is not enough if you run your car hard enough that the exhaust housing glows, like I said above, and SPD Tuning says the same thing: Quote:
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10-08-2003, 01:19 AM | #16 | |
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10-08-2003, 01:24 AM | #17 | |
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10-08-2003, 01:33 AM | #18 | |
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10-08-2003, 01:33 AM | #19 | |
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Re: The REAL truth about Turbo Timers?
Quote:
http://www.subaruwest.com/PDF_files/...1_techtips.pdf http://www.spdusa.com/turbo_timer.htm Please keep in mind that I (personally) would never "run hard" and then just shut my car off. After a hard drive I always take it easy for about a mile to allow all of the vehicle's components (engine, drivetrain, brakes, etc) to return to their normal operating temperatures (common sense). - Kean |
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10-08-2003, 01:39 AM | #20 | |
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Re: Re: The REAL truth about Turbo Timers?
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10-08-2003, 01:47 AM | #21 | |
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We're talking about common sense here. A couple of ounces of hot coolant (Coolant flows from the bottom of the heads, to the block, out to the heads again, and then into the turbo). By this time, the coolant is HOT! These couple of ounces of HOT coolant (vaporous coolant according to Subaru) is not going to do anything to 15 plus pounds of glowing cast iron. In fact, when idling your car, the cooler exhaust flow and cool air in the compressor does much more to actually cool the turbo down, than does the coolant. But hey, if you are lazy, go right ahead and just shut the engine off after you beat the car. Edit: I'm not going to beat this issue anymore. I think there is plenty of info in this thread alone for neaners to make up her own mind. |
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10-08-2003, 02:03 AM | #22 | |
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Re: Re: Re: The REAL truth about Turbo Timers?
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10-08-2003, 02:30 AM | #23 | |
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Quote:
~ Janene |
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10-08-2003, 02:33 AM | #24 | |
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Quote:
(My friend, standing next to his idling car) Me: "Why you standing next to your car, and why is it on?" Him: "Turbo timing." Me: "HAHAHAHAHA" Him: "Shut up, it's the same thing." |
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10-08-2003, 11:23 AM | #25 | |
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