read this on another board & find quite interesting. since there're many turbo experts on this board might as well share ur thought.

''I believe that on initial start up and particularly when engine is at ambiant temperature the engine with turbo has to have a short warm up period, say about 3 min. and upon shut down should allow engine to idle for 3 mins. Never should an engine with turbo be revved and then turned off.

in the first case coolant n oil needs to get into those fine bearings for proper lubrication which will ultimately reduce "lag" on take off.

on switching off, engine n turbo should be allowed the idle time for turbo to slow down in operation, then switched off.

Today there are no beliefs in the above operations.But i do believe that the service life span of the turbo will be more prolonged if the above procedure is exercised''

 

you shouls always cool down and warm up the car, 3 minutes is too much in my opinion, three minutes for a cool down is over kill if you just drive the car normally a minute is good enough..

the reason why you should do a cool down after you drive the car, is to prevent cooking the oil in tha passages around teh turbo , since the turbo is very hot and if the oil is suddenly "stuck" it will be come "cooked" and it will hinder the oil passages and might later clog the oil pasaage lines which is very essential in a turbo..

i've always wondered why no one has a aturbo timer in european cars. or why no one makes a harness to put one on...


warmi si essential ona aturbo inorder for the oil to circulate throught he engine and the turbos... it isn't good to "haul ***" ina turbo car right on start up bec. u need to make sure teh system is lubricated..

i've seen alot of improper turbo use in my day... mainly in japanese turbo cars and it cna get quite expensive to replace, rebuild a turbo..

 

I always do 10min warm ups (before hard driving) and 1-2 min cool down (after 5-10 min of normal driving).

 

Isn't a good rule of thumb for all cars to warm up to normal operating temp before hammering it?

 

Not necessary for a POS like Sharky's EVO Just hammer at will. Engine is cheaper than the CF mirrors on a porsche.

 

Unless it's very cold, your best bet is to warm up for ~30 seconds, and start driving, keeping your rpm and load to a minimal til operating temp.

That way, the motor will warm up faster while experiencing minimal load. To let it sit and idle til operating temp actually prolongs the warm-up duration.

As for cool down, just be sure not to hammer your car prior to reaching your destination... maybe take it easy the last couple of miles, and more if you've been driving hard. Once you get there, sit for a min or so and shut down. If you've been driving non-spiritly, you really don't have to sit for more than a few seconds. This is much better than driving *****-out to your destination, and sitting for a couple minutes while everything is heat soaked.

 

Too bad the TT doesn't come with an Oil Temp gauge, which is needed to determine operating temp.

 

I think I need to leave work early to practice proper hammering/cool-down techniques.

 

Yes...and for those that arent aware...that's not the water temp gauge...oil temperatures will take on average about 10-15 minutes of normal driving after ideal water temps have been reached.

 

I give myself extra 12min before and after work each day

 

I always let the car warm-up for about three minutes then drive carefully, not exceeding 3000rpm's for ten minutes, at least. On shut-down, I slow down and get off boost the last couple of miles and then let the car idle for about two minutes before shutting it down.
Collin, I do agree with the need for a proper oil temperture gauge, or at least, the warning lights on the tachometer like the E-39 M5.

 

Does anyone know if the oil temp reading can be taken from any computer module in the car? I'd love to add that feature into the PCM. Is there an oil temp sensor at all?

 

Hi Collin,

Interesting you ask this because I was just going to post that before I get on it I will usually try to check the oil at a stop light and if it says, "Engine not up to temp", I give it a little longer. I have no idea if this is a reflection of true oil temp or not but I do know it is at least several minutes after the water temp appears to be up to normal before it will let you check the oil.


I too believe in proper warm up and cool down each and every time I take her out. I've always done this on my turbos, and knock on wood, never had a problem yet.

Thanks,
Ted.

 

Ted, think you got someth there. It still a good indicator. Someone just have to create an asynchronous thread in the PCM software to poll for that okay-to-test-oil condition. An oil-temp-still-cold warning light can be lit upon startup, then when the condition is good, the light can go off. That'll be a cool mod.

 

In the gauges, like the cruise control, would be awesome. You could even use the somewhat useless cruise control light (I know when it's working, because I can answer calls, drink my soda, and eat my lunch without worrying about the right pedal).