What was the official mazda answer too...

[chris p]

cooling when you stop after a journey ..i know i asked this before but i wasnt happy with the answer .....are you supposed to just give enough time to cool the turbos doen then switch off and walk away or do as i do and sit with the fans on (via the a/c switch ) till the apexi says less than 90 degrees??

I dont want to cook my engine by just leaving it ...but i dont want to be say for ages even after a slow drive !!! help!!

[TonyBlair]

Don\'t know the correct answer mate... I tend to sit in the car and leave it running for 20-30 seconds if I have only driven the car for a short journey and haven\'t booted it at all. A minute or a bit longer if I\'ve been booting it. I like to see the temp get below 90 degrees before I switch off. After the engine is off I use my turbo timer to keep the fans running whilst I\'ve locked the car and walked away - I sometimes leave the internal fans on with the dial set to full heat to aid in getting heat out of the engine bay.

What\'s this business of using the air-con switch mate? Does that turn the fans under the bonnet on or something?

Cheers
Jon

[chris p]

yeah it allows the fan to come on before it usually kicks in at 93-94 and when it has kicked in gives a higher fan speed !
 
so you basically do the same as me but with your timer

[TonyBlair]

Yeah, pretty much the same routine as you mate.

I\'ll try the air-con switch trick tomorrow.  

Eventually when I\'ve got the money I\'ll invest in a carbon bonnet with some large vents in it - should help shift some heat out of the engine bay.

[chris p]

i was told that i should open my bonnet when the fans are on to help cool it ....but this actuallly INCREASES the temp for some reason !!

[TonyBlair]

Got a question if you don\'t mind Chris... Ok, so I parked up outside the office this morning, the engine is still running, I pushed the air-con button and nothing seems to happen. Am I suppose to switch the fan speed switch on to 1, or another number, or turn the dial to hot or cold or something?

Cheers
Jon

[Gerry M]

air con wont come on unless fan is running

[TonyBlair]

Right - so if the air-con is switched on the fans under the bonnet automatically come on, and at a higher speed. Is that right? Should I turn the temp dial to hot or cold to aid the cooling of the engine bay?

Cheers
Jon

[Kieron]

Turbo timer on for 2mins, Air con on, fan speed on max and cold.

Vents in my hood also help the cooling.

[J.j.]

i was told that i should open my bonnet when the fans are on to help cool it ....but this actuallly INCREASES the temp for some reason !!

Didnt know that.....
How come??

[chris p]

yes mate you need to have the air con on 1 or above........

Quote:
i was told that i should open my bonnet when the fans are on to help cool it ....but this actuallly INCREASES the temp for some reason !!  



Didnt know that.....
How come??

i have no idea...maybe as the fans are pushing cold air over the engine with the bonnet shut....but with it open the cool air just goes strait up and away  :xconfused

[TonyBlair]

I set the fans to setting "1" with the air-con on and sure enough fans cranked it up a gear  

[chris p]

i only found it a few weeks ago

[Martiny]

Didnt know that.....
How come??

Yes, I would like to know the theory behind this??? ( maybe its a statement form the FIA!)

[sdminus]

Is it not to cool the air con condensor
Scott