Jump to content
SAU Community

Warming Up And Cooling Down Skyline

michadoo

By michadoo,
in R Series (R30, R31, R32, R33, R34)

 Share

Recommended Posts

SKY031 Grand Master

SKY031

Posted
Posted

Could the people who leave their cars to warm up for 5+ minutes explain to the rest of us why you feel it's neccessary?

I tried to weigh up the pros and cons, and there doesn't seem to be much of an upside to allowing the car to warm up at idle.

Cons

1/ It's a waste of fuel

2/ It's a waste of money

3/ Car takes longer to get to running temp when at idle

4/ It pisses the neighbours off

5/ Motors are designed to have air flowing through them while the car is moving forward. This doesn't happen when the car is sitting still.

The air that is being sucked in to the motor is warm engine air... if anything, wouldn't this cause the temperature to rise faster than if you were driving, thus being more likely to cause damage to components which are prone to warping/heat damage?

6/ People figure that if the car has been "warmed up" that it's safe to thrash the crap out of it as soon as you get out of the driveway.

Pros

??

ctjet Grand Master

ctjet

Posted
Posted

you must hav got up on a cold morning gone to start the car drive off and it just doesnt drive properly. It lags, stutters and genrally isnt happy

leting it run for a minute eliminates most of those issues and most importantly of all it gives u peace of mind. thats the main reason people do it

P.S. who gives a shit about their neighbours?? haha i hate mine with a passion

SKY031 Grand Master

SKY031

Posted
Posted

One minute is within reason...

I make sure that I can hear the lifters have quietened down so that I know oil is getting to where it's needed, but once that's accomplished, it's time to go.

However, I wasn't questioning one minute, I was questioning 5+ minutes.

As for the neighbour comment, I'm a victim of this.... a neighbour has an extremely loud (hunk of crap) car that they like to leave idling for up to half an hour at a time. :cheers:

TokyoTaxi Veteran

TokyoTaxi

Posted
Posted
all of the above.Also,when it get's home the bonnet is lifted up.It stays very warm in the enclosed area of the garage especially in the summer months..

Looks like you and I are the only ones that do this :cheers:

I'm surprised more people don't. It's a great way to increase the life of everything under the bonnet IMO

Dee 33 Community Regular

Dee 33

Posted
Posted

Start car as soon as I get in then choose a cd, put belt on, pack car. Anywhere from 30 seconds to 2 minutes. Then I just take it easy keeping the revs down and boost at 0 or vacume until the guage reaches as high as it goes which is just below half. This usually takes about 3-5 minutes of driving. After that she's good to thrash.

As for cooling down, I take it easy for the last 2 minutes then shut it straight off. If taking it easy wasn't an option :O then I'll set the timer to 2 mins or so. I rarely use the turbo timer at all though.

POOMBAH Proficient

POOMBAH

Posted
Posted
Looks like you and I are the only ones that do this :laugh:

I'm surprised more people don't. It's a great way to increase the life of everything under the bonnet IMO

You can add me to the list too :rolleyes:

But i do it so I can cook my meals on the plenum :happy::P

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • GTSBoy
      R33 Fuel Pump & Brakes after alarm swap

      By GTSBoy · Posted

      Power is fed to the ECU when the ignition switch is switched to IGN, at terminal 58. That same wire also connects to the ECCS relay to provide both the coil power and the contact side. When the ECU sees power at 58 it switches 16 to earth, which pulls the ECCS relay on, which feeds main power into the ECU and also to a bunch of other things. None of this is directly involved in the fuel pump - it just has to happen first. The ECU will pull terminal 18 to earth when it wants the fuel pump to run. This allows the fuel pump relay to pull in, which switches power on into the rest of the fuel pump control equipment. The fuel pump control regulator is controlled from terminal 104 on the ECU and is switched high or low depending on whether the ECU thinks the pump needs to run high or low. (I don't know which way around that is, and it really doesn't matter right now). The fuel pump control reg is really just a resistor that controls how the power through the pump goes to earth. Either straight to earth, or via the resistor. This part doesn't matter much to us today. The power to the fuel pump relay comes from one of the switched wires from the IGN switch and fusebox that is not shown off to the left of this page. That power runs the fuel pump relay coil and a number of other engine peripherals. Those peripherals don't really matter. All that matters is that there should be power available at the relay when the key is in the right position. At least - I think it's switched. If it's not switched, then power will be there all the time. Either way, if you don't have power there when you need it (ie, key on) then it won't work. The input-output switching side of the relay gains its power from a line similar (but not the same as) the one that feeds the ECU. SO I presume that is switched. Again, if there is not power there when you need it, then you have to look upstream. And... the upshot of all that? There is no "ground" at the fuel pump relay. Where you say: and say that pin 1 Black/Pink is ground, that is not true. The ECU trigger is AF73, is black/pink, and is the "ground". When the ECU says it is. The Blue/White wire is the "constant" 12V to power the relay's coil. And when I say "constant", I mean it may well only be on when the key is on. As I said above. So, when the ECU says not to be running the pump (which is any time after about 3s of switching on, with no crank signal or engine speed yet), then you should see 12V at both 1 and 2. Because the 12V will be all the way up to the ECU terminal 18, waiting to be switched to ground. When the ECU switches the fuel pump on, then AF73 should go to ~0V, having been switched to ground and the voltage drop now occurring over the relay coil. 3 & 5 are easy. 5 is the other "constant" 12V, that may or may not be constant but will very much want to be there when the key is on. Same as above. 3 goes to the pump. There should never be 12V visible at 3 unless the relay is pulled in. As to where the immobiliser might have been spliced into all this.... It will either have to be on wire AF70 or AF71, whichever is most accessible near the alarm. Given that all those wires run from the engine bay fusebox or the ECU, via the driver's area to the rear of the car, it could really be either. AF70 will be the same colour from the appropriate fuse all the way to the pump. If it has been cut and is dangling, you should be able to see that  in that area somewhere. Same with AF71.   You really should be able to force the pump to run. Just jump 12V onto AF72 and it should go. That will prove that the pump itself is willing to go along with you when you sort out the upstream. You really should be able to force the fuel pump relay on. Just short AF73 to earth when the key is on. If the pump runs, then the relay is fine, and all the power up to both inputs on the relay is fine. If it doesn't run (and given that you checked the relay itself actually works) then one or both of AF70 and AF71 are not bringing power to the game.
    • Kinkstaah
      My BMW E39 528i touring

      By Kinkstaah · Posted

      @PranK can you elaborate further on the Colorlock Dye? The website has a lot of options. I'm sure you've done all the research. I have old genuine leather seats that I have bought various refurbing creams and such, but never a dye. Any info on how long it lasts? Does it wash out? Is it a hassle? What product do I actually need? Am I just buying this kit and following the steps the page advises or something else? https://www.colourlockaustralia.com.au/colourlock-leather-repair-kit-dye.html
    • GTSBoy
      My BMW E39 528i touring

      By GTSBoy · Posted

      These going to fit over the big brakes? I'd be reeeeeeeeaaaall hesitant to believe so.
    • PranK
      My BMW E39 528i touring

      By PranK · Posted

      The leather work properly stunned me. Again, I am thankful that the leather was in such good condition. I'm not sure what the indent is at the top of the passenger seat. Like somebody was sitting in it with a golf ball between their shoulders. The wheels are more grey than silver now and missing a lot of gloss.  Here's one with nice silver wheels.
    • soviet_merlin
      My BMW E39 528i touring

      By soviet_merlin · Posted

      It's amazing how well the works on the leather seats. Looks mint. Looking forward to see how you go with the wheels. They do suit the car! Gutter rash is easy to fix, but I'm curious about getting the colour done.
×
×
  • Create New...