Warming Up an FD

[RobbieRX-7]

and too much idling from cold causes more carbon build up

[barmar]

Think I\'ve come to this thread a bit late, but I\'m going to add my tuppence worth in. To warm up nothing special really drive off but keep off boost until a mile or so after the water temp is up to 80C. Then anything goes.

To cool down I drive gently for 3 - 4 miles again off boost with air con on full, heat up to take as much heat out of the rad as poss. Arrive at destination turn engine off. If I\'ve been giving it some stick, I\'ll leave the ignition so that I can check the water temp (air con still on at this point taking heat out of the rad still). Once the temp gets to high 90\'s I turn the engine back on for 30 seconds or so to let the cooler water from the rad circulate round the engine. After this the water temp usual drops considerably so I turn off and leave car.

Hope I don\'t get flamed but it works for me.

Barry

[gsb876]

As a guide i watched the water temp to see where the oil temp is, so ,

@ 70oC water, oil was @ 45oC

Water maxed out @ 75oC after about 8 mins oil was @ 70oC.

Just a guide as once water reached temp it doesn\'t mean the oilis up to temp.

[RobbieRX-7]

gurj...was that normal drivin or caning it? must get better water temp gauge and fluidididididine radiator ..oh and an alu ast  :yes

[gsb876]

Just normal driving, 30 mph to the gym.

I dont do any quick driving till oil is up to 70oC.

[g11ary]

Im gona say this and I dont thick TREX will take offence. Everyone has a different take on the way people post, sometimes Ive typed out, posted and can see how Ive been abrupt without meaning to. I have see this on lots of occassions with TREX\'s posts. I have never meet TREX but Im sure he is a great guy, that just says what he thinks/means without any offence meant. Can we all just not read in to posts what we think but think what might have been meant. Its just that Ive seen several posts/threads end up with people taking sides and usually against TREX.
It is good that we all have our opinions and it keeps some of these mas-debates ;-) healthy.

Back to my slarnt.
Its not going to be a hard and fast rules, if youve just been to work or tootling around because of traffic you are probably not going to need to warm down your car and no harm will be done, this cars cant be that fragile. But if youve given it a hard time then some warm down driving will be required before turning off, if you get sufficient warm down driving then just turning off probably wont do it any harm. If youve just come off the motorway, track or similar then I think it absolutely essential you cool her down before turning off.
Part of the reason for cooling down is not just to cool the engine its to cool it slowly. If you have cained her and generally temps are high, and you run her on tick over the area will cool down it wont go high. When you start your car it will go from cold to a opt heat range it wont go off the scale, if it does you have lots of problems. But generally it will reach a point and stay there. So when you park up your temp will be high and will go down to opt heat range, then once switched off it will cool down more. Oil is the most important cooling agent you have not water, one cant live without the other but the oil will cool engine parts more efficiently, so if left running the oil is still circulating and doing its job, and not degrading in to the tar like substance you dont want. Another reason for cooling down after a hard run is that diff materials cool down at different rates, and this is probably the most important reason for doing it. I was out with a friend in his helecopter and even he does cool down after a flight, not because the engine is hot but because of the different rate different materials expand and contarct.
As I say it depends on how you have just driven it, but if you have a timer then era on caution and use it.
It also highlights the use of a good engine oil, not just something because its cheap.

[clive]

SO to warm up an fd.here`s what i do.

start car and get ready with your seatbelt,cd`s and so on... takes about 30sec. Drive under 3000rmp with no boost for 10mins. After this time gradually increae boost to blow all the **** out the cat and engine.

To cool down after heavy boosting i take it easy for a good 2miles with no boost at all

 
after the steady drive home i park up and switch off because i know for sure that the engine has had a good cool down period.

QUOTE]


Well well, tell me again how complicated we can all make a simple question   , blimey its a good job someone  doesn\'t ask for an answer for the meaning of life  :rollin  :rollin


Seriously, If you have any mechanical sympathy for your car be it Rotary or Boinger Robbie\'s right, its as simple as he puts it.

No need for Turbo timers just a bit of consideration for things that go round and round very very fast and get very very hot but also need to be at their optimum temperature to operate efficiently and safely thus reducing the risk of breakage and wear .


p.s. why do woman make good Drag racers, its because teams found that when they put them in cars they just did as they were told, i.e. " do this and do that and it goes fast" but they found they did it with no mechanical sympathy for their vehicle at all !

That\'s it l\'ve had me fun, I\'ll get me coat now, but one day we must start a Thread asking if anyone knows the meaning of life   , bye   :wave .

[Ricco_04]

Glad to know that I said the same on the very first page of posts!  :wiggle   :bandit