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Discussion Starter · #1 ·
Okay, so I bought <i>Maximum Boost</i> last night and I've been reading it today. I just got done with the turbo lubrication section (Chapter 4), and towards the end he vaguely mentions turbo timers, but says they are pretty much useless in his opinion.

I've always heard otherwise.

What do you guys think?


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i always heard that you have to have a turbo timer if your gonna run a bigger turbo than stock or just a turbo in a N/A car<img src=/images/forums/snitz/oogle.gif width=15 height=15 border=0>


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i don't believe that they are useless, but if you think about it, you are leaving the car running anyway, so technically the car would still be somewhat warm.


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Anyone I've ever asked about this said the same thing...GET ONE. I don't think it's the end-all-be-all in turbo maintenance as some suggest...but it WILL add significant life to your turbo, especially after hard runs.

Plus...if they were useless why would the top turbo tuning companies in the world (Greddy, HKS, etc...) make them? I'd believe them over some second rate magazine any day. <img src=/images/forums/snitz/wink.gif width=15 height=15 border=0>

And hell, they're under $100...and they're certainly not gonna hurt anything. <img src=/images/forums/snitz/thumbup.gif width=25 height=18 border=0>
 

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Discussion Starter · #5 ·
Second rate magazine? It's actually one of the best books on street turbo theory you can get <img src=/images/forums/snitz/tongue.gif width=15 height=15 border=0>.

As for why does Greddy and HKS sell them? Why do they sell Universal mufflers? Because people buy them, but they don't help performance.

According to the book, he says leaving the engine running for any longer than 30 seconds is useless as the turbo will slow down quickly with the engine. He makes a very valid point for normal street driving (which is what the book covers). I can see the need for one for hard driving where the turbo is up in the 100+RPM range all day, but not for daily driving.

I think its more of an "I'm cool, look what I've got" than anything.


<hr width=60% noshade size=1 align=left>"Hey, if my prize is your foot up my arse... its still a prize.... " - <b>WhoopOi</b>

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4doorgl. Turbo timers are definately worth having. Also it greatly depends on your pressure if you NEED one. If your running dual or a certain pressure its a must to have one.


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<BLOCKQUOTE id=quote>quote:<hr height=1 noshade id=quote>
Second rate magazine? It's actually one of the best books on street turbo theory you can get <img src=/images/forums/snitz/tongue.gif width=15 height=15 border=0>.

As for why does Greddy and HKS sell them? Why do they sell Universal mufflers? Because people buy them, but they don't help performance.

According to the book, he says leaving the engine running for any longer than 30 seconds is useless as the turbo will slow down quickly with the engine. He makes a very valid point for normal street driving (which is what the book covers). I can see the need for one for hard driving where the turbo is up in the 100+RPM range all day, but not for daily driving.

I think its more of an "I'm cool, look what I've got" than anything.<hr height=1 noshade id=quote></BLOCKQUOTE id=quote>Doh! I remember which book you are referring to now. <img src=/images/forums/snitz/wink.gif width=15 height=15 border=0>

You're right. If you're running minimum boost and driving "normal"...you could do without one. But who's gonna turbo their car and drive like a grandma all the time? <img src=/images/forums/snitz/tongue.gif width=15 height=15 border=0>

It has been proven that they extend turbo life either way. Whether you get an extra 20K miles...or even 1,000 miles...I'd say it's worth the $80 or so bucks to get one. <img src=/images/forums/snitz/thumbup.gif width=25 height=18 border=0>
 

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I have a turbo timer in my Chrysler Conquest so I speak from experience. Save your money and here's why.

By killing your engine, you shut off your oil supply to the turbo. A hot turbo with no oil pressure will cause the oil to bake and cake up inside the turbo. This could lead to turbo lubrication problems and eventually, failure.

All the turbo timer does is keeps your engine running for a preset time (or a calculated time based on engine load if you have a good timer) after you remove the key from the ignition. This gives your turbo enough time to cool so it doesn't cook the oil inside of it.

Now, if you love your car as much as I did, you probably won't walk away from your car while the engine is still running. You'll wait for the turbo timer to shut off your engine before completly loosing visual contact with your car. And if you're willing to wait for the turbo timer to shut off, you might as well just sit in car and let it idle for an extra 1-3 minutes before removing the key from the ignition. The end result will be the same as the turbo timer.

Hope this makes sense.

<pre id=code><font face=courier id=code><hr><table border=0><tr><td valign=top><b>2001 Hyundai Accent GS</b><br>
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www.geocities.com/onesickgs<td><img src="http://24.128.218.194:90/upload/accent/images/wrc-1sickgs-sig1.jpg" border=0><td><img src="http://24.128.218.194:90/upload/accent/images/wrc-1sickgs-sig2.jpg" border=0></table></font id=code></pre id=code>





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1sickGS...what kinda turbo timer did u have...i installed an HKS type O on my friends eclipse GSX, and it has an E-brake sensor, so if the ebrake is let down, the car will shut off...that would solve the problem of leaving it out of ur sight.


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forgive me for this statement... but if you shut the engine off earlier than the timer is programmed to run, "so if the ebrake is let down, the car will shut off", doesn't that defeat the purpose of having it?


<hr width=60% noshade size=1 align=left>are you racing you mom's car?

Edited by - scrtdrvr on 01/29/2002 08:52:25 AM

Edited by - scrtdrvr on 01/29/2002 08:53:25 AM
 

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Discussion Starter · #12 ·
No, cause when you turn the car off, the e-brake is up, but if somebody tries to climb in and take it while its still running, they have to put the e-brake down and it will turn off.


<hr width=60% noshade size=1 align=left>"Hey, if my prize is your foot up my arse... its still a prize.... " - <b>WhoopOi</b>

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If you have a "water cooled" turbo, they are useless. The coolant continues to flow through the turbo by thermoconvection, so a turbo timer is not needed. Also, a water cooled turbo does not need the "cool down" time as much as the non-water cooled unit.

If you have a turbo, that is non-water cooled, only lubricated/minorly cooled by oil, then yes, a turbo timer can be a usefull thing.

If you were going to install a turbo timer on a water cooled turbo, I would say hook it up to an auxilary water pump, so it can keep pumping coolant through the turbo even though the engine is off. That will provide the best cooling. As long as the engine is running, the exhaust gasses are about 1000 degrees hotter than the coolant.


<hr width=60% noshade size=1 align=left>quote from 4DoorGL: "Told you. Random is cool as hell in person, even if he is a dick on the net <img src=/images/forums/snitz/wink.gif width=15 height=15 border=0> (j/k)"

Leave it to Random to Needlessly complicate things.
 

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Just as an outside opinion <img src=/images/forums/snitz/smile.gif width=15 height=15 border=0> I would have to say that they're a waste. GS is correct in that when your car is idling by itself, you REALLY don't want to leave it there. The other half of that problem is, even if you could leave it there, you cannot arm your alarm (at least you cannot with MY alarm) because the car turning itself off makes your alarm go off.

The problem that you're all forgetting is that the heat is built up when you're pushing the turbo HARD. How many of you race at full bore and then immediately park? Anyone? Anyone?

I run pretty hard getting to work in the morning, but the last mile or two is stoplights and 35mph zones. By the time I get to work, any beatdown I may have applied to my turbo would have long since cooled down.

Screw that. I've got better ways to spend the $150-$200 you could spend. Like a quality blow off valve for example <img src=/images/forums/snitz/thumbup.gif width=25 height=18 border=0>

-Red-
 

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Discussion Starter · #15 ·
That's what I was thinking Red.

They'd be good for a race car, but on a street car its pointless.


<hr width=60% noshade size=1 align=left>"Hey, if my prize is your foot up my arse... its still a prize.... " - <b>WhoopOi</b>

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<BLOCKQUOTE id=quote>quote:<hr height=1 noshade id=quote>
How many of you race at full bore and then immediately park? Anyone? Anyone?
<hr height=1 noshade id=quote></BLOCKQUOTE id=quote>

I did, I did, kind of! I had my own private side show going on at work. Used to smoke the tires for like 15 seconds every day right before I parked and went in. <img src=/images/forums/snitz/smile.gif width=15 height=15 border=0><img src=/images/forums/snitz/smile.gif width=15 height=15 border=0><img src=/images/forums/snitz/smile.gif width=15 height=15 border=0> The parking lot is always wet from the sprinklers and always deserted at night.

Got caught by the security patrol once but he let me go and asked if he could video tape my burnout the next day. Wasn't sure if he was trying to bust me or if he was just impressed with the smoke. After that, I stopped.

Anyways...

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I agree to, Turbo Timers on a water cooled turbo are useless.

Yes, oil could cook in the turbo, but you should be using a full synthetic which would cut down on that. Also, the turbo will not cool down much if you were sitting there idle then if you just putted into the parking lot looking for a space for 5 mins.

Turbo timer would be good, if for some god awful reason, you are able to drive every place at full boost at like 100mph, and hit the brakes and turns off the car and leave. then you will have some oil cooling problems with your turbo.



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So all and all I wouldnt need one with the alpine turbo, right? I mean the thing is preset to 10 lbs of boost correct? I don't know if its oil cooled or water cooled. You know Random? Do you have one? You have the same set up as I do. If your driving aggresivly, then you need to let your turbo cool off a bit before you leave your car? Hrm..<img src=/images/forums/snitz/oogle.gif width=15 height=15 border=0>


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