you;ll be fine just dont shut it off like isntantly after running the piss out of it.

I never got one till my stock turbo went and then upgraded. Its not a real need but it is nice on the days when you like to have a little fun and then stop to do whatever. Just to be able to take the key- lock and walk away. Spend the money on something else till then.
Laters
AJ

The timer would be worth the money to have, but its not nessecary. As you let it run for a little bit before shutting it off. But its always a good thing to have if youve been dogging it and sometimes dont think and just get out quickly without letting it run.

I was thinking the same as the guys who replied. I have a limited budget, so i need for every mod to count. I don't plan on racing, just want a reliable daily driver to get me too and from work. I may look for an older awd eclipse/talon later for racing though......

You only need to let it cool down if you run it pretty hard...if you're just cruising along through the city at a constant 40 mph, you don't really need to let it cool down.

I only let it run for about 15 seconds after if I was just cruising through the city normally...If I'm just getting off the highway or ran it hard, I'll set the Turbo Timer for like a minute & a half, two minutes...

Honestly though, the turbo timer was a waste of money, I've come to realize...It's like an A/F gauge now to me...it's pretty much just a light show. Or a conversation piece I find the battery voltage readout that it gives me more useful than the actual turbo timer.

worth the money... too lazy to idle my car down after i drive it hard. So after that reason I live in Ma so we have winter so I go turn it on and then go back in and let the car warm up.

The T25's are water cooled as well, right? If so it's much less important. Just let it run for a few seconds if you've been beating on it.

It's not looking too good for the turbo timer purchase...i'm scared to buy one off ebay...i'm not convinced their worth it unless i could find a used one, but even that would scare me....Still i'm interested in what everyone thinks on the subject..excellent replies for and against so far.

EvolvingGST said:

worth the money... too lazy to idle my car down after i drive it hard.

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If your referring to me its not that im to lazy to let it cool down I just know theres other things i would rather do then wait 2 minutes or so to turn it off.

A complete waste of money on a watercooled spool.
http://www.dsmtuners.com/forums/showpost.php?p=1007473&postcount=13
If you're getting one just as a toy, or for other features it may include, then that's up to you. But your turbocharger has no earthly use for it.

bluetlr2001 said:

If your referring to me its not that im to lazy to let it cool down I just know theres other things i would rather do then wait 2 minutes or so to turn it off.

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Chill man I was talking about me. I have a oil cooled turbo, and I said I was too lazy to cool it down so I have a turbo timer. Girls don't like waiting for the car to idle down. So you either A. Need to have game and flirt with them a lot and do stuff in the car to wait. or B. Buy a turbo timer. A. gets old after a while.... and then they figure out you are stalling for some reason.

FYI - Watercooled turbos are also known as wet bearing turbos, and oil only cooled turbos are called dry bearing turbos.

so what is a 14b 1st gen from a 90s 6bolt motor, would that be wet bearing or dry bearing?

nightspeed87 said:

so what is a 14b 1st gen from a 90s 6bolt motor, would that be wet bearing or dry bearing?

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dry bearing

jackstandwarmer said:

dry bearing

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Wrong. DSM's all came with wet CHRA's; meaning that they all had/have a water cooled CHRA.

And as Defiant stated above, it is not nessacery to time down a wet CHRA. But it is recommended to do it on a dry CHRA. This does not nessacerily mean a turbo timer is needed. You can sit and wait for a minute or two for it to time down, if you perfer to save $80.

EvolvingGST said:

worth the money... too lazy to idle my car down after i drive it hard. So after that reason I live in Ma so we have winter so I go turn it on and then go back in and let the car warm up.

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Yup! That's my "manual remote start". Walk out, set the turbo timer to max (9:50) and go back in and finish getting ready.

I have a oil cooled only 50 so i always turbo time it 1:30 and more if i drive hard.

I found this on Garrett's website:

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.

Anyone who tore their dead T25 apart when if finally died can see why you want to let the car idle for 30 or so seconds after running it hard. With 75k miles, my T25 died (shaft broke), and there was a moderate amount of coke on the turbo. Except right after I got the car, I didn't bother letting it idle. I did my oil changes every 3k miles, so some of that coke could have been reduced by 2k oil changes, but not all of it.

In Maximum Boost, Corky Bell mentions 30 second idle and 2k oil changes even for water cooled center sections.

You can get into the habit of just sitting for a minute when you get where you're going, or you could get a turbo timer to save some time and cover you if/when you forget. It's up to you. I just take it easy at the end of my commute (5-10 minute commute) and let it idle 30 seconds. If I run it harder on the way to the grocery store or lunch or whatever, I let it idle more.

I think that it is bad advice to tell folks they don't have to let it idle and that convection in the center section will pull enough heat out of it to avoid coking.

kenamond said:

I think that it is bad advice to tell folks they don't have to let it idle and that convection in the center section will pull enough heat out of it to avoid coking.

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I don't see why. There is nothing in the owner's manual that states you need to let your car idle. The only car that I know about that states extended wait time before shut off at highway speeds is Volvo.

75k on a stock turbo before it died is not bad. I personally wait about 15-30 seconds on my T25 before shutdown because I drive hard everytime, it has become a habit, since I started doing it before I found out that turbo timers are a waste of time in a wet turbo. I sometimes wait before shutdown in my wife's SUV and she always says, "It's not your car, you can turn it off now"

But waiting 2-3 minutes on a water cooled turbo is ridiculous. It is even more ridiculous if you have a wet ball bearing turbo.

EDIT: Now that I think about it, I wait between 15-30 seconds depending on how I drive the car.

I have to agree. I never cool my 16G for more than 30 seconds and if I haven't been running it hard, I'll generally shut it off after 15 seconds or so. Keep in mind this turbo has run upwards of 28 psi and still has zero shaft play.

I let mine idle for 1minute and I have 172,XXX miles on stock t25. 100 bucks isnt that much money for an added convenience. Im always late for work so I run the car pretty hard. I dont have time to cool it off when I get there, so for me the timer is worth it.

I'd rather spend $100 for the timer then pull the turbo off, and I'd rather have it shut itself off so I don't have to sit there and wait, or go back outside, then again, I'm pretty lazy...

DGajre777 said:

I don't see why. There is nothing in the owner's manual that states you need to let your car idle. The only car that I know about that states extended wait time before shut off at highway speeds is Volvo.

75k on a stock turbo before it died is not bad. I personally wait about 30 seconds on my T25 before shutdown because I drive hard everytime, it has become a habit, since I started doing it before I found out that turbo timers are a waste of time in a wet turbo. I sometimes wait before shutdown in my wife's SUV and she always says, "It's not your car, you can turn it off now"

But waiting 2-3 minutes on a water cooled turbo is ridiculous. It is even more ridiculous if you have a wet ball bearing turbo.

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My point on my T25 is that it had coking on the hot end of the shaft. And 75k miles after 9 years was past drivetrain warranty, so what do they care if it breaks then? If they told you you had to wait 30 seconds before shutting down and that you had to change oil every 2k miles, that would hurt sales. I just wonder what it would've looked like after the same mileage if I'd let it idle 30 seconds (not 2 minutes) and changed the oil every 2k miles.

If you change your oil every 3k miles, it's very black from coking (atleast mine was, and I've been running Mobil 1 synth since I finished my 2k mile break-in).

why dont you just invest in alarm(viper,python) that has the turbo timer feature?
you can warm up your car(remote start) or cool it down, with the little security of an alarm. jsut an idea.