Hi guys.
I own an 03 sti type uk. Totally standard as far as I know, only had the car 2 weeks. I drive 16 miles to work Through Birmingham and I was wondering how long I should leave the car ticking over to cool it down. I don't drive it hard and speeds are about 30 mph. I leave it for about a minute at the moment. Is that long enough? Would I be better off with a turbo timer?
Thanks Danny.

 

If u haven't been driving it hard no need to leave it running. The reason u leave it running is to cool the turbo and all it's components down to a safe temparture before u cut off its oil feed to avoid damage to bearings. If av been driving hard I just drive off boost for the last mile or 2. Turbo timers r the biggest load of ****e av ever seen in my life. If needs must just sit for a minute after hard driving if u can't drive off boost.

 

i leave mine to cool down for about 90 seconds usually using my turbo timer. dont get why marshall332bhp thinks they are ****e they are more convenient than having to sit about in your car waiting???

 

Do u lock your car and walk away leaving it running? Why don't u just drive off boost? Have heard insurance company's can void a claim if stolen and find it to be fitted with a timer.

 

Usually by the time ive put on my steering lock, grabbed my phone and coat etc is long enough for me.

But as said. drive off boost for the last few streets of your journey and you'll be fine.

 

Maybe this is why......


It is not necessary to perform a “cool
down/idling” procedure on Subaru
WRX/STi/LGT turbo models, as was recommended
with past turbo models. The
current 2.0/2.5 liter turbo engine has a far
greater cooling capacity and, coupled
with technology advances, makes this
practice no longer necessary. This
explains why information about a cool
down is not included in the
Owner’s Manuals.
The heat contained in the turbocharger
begins to vaporize the coolant at the
turbocharger after the engine is
stopped. This hot vapor then enters the
coolant reservoir tank, which is the
highest point of the coolant system. At
the same time the vapor exits the turbocharger,
coolant supplied from the
right bank cylinder head flows into the
turbo. This action reduces the turbocharger
temperature. This process
will continue until the vaporizing
action in the turbocharger has stopped
or cooled down.

 

if the turbo timer is fitted correctly it should turn off as soon as the handbrake is released and not gonna get far when it shuts off after a minute or so

 

There just a stupid pointless gimmick in my eyes. Something from the early 2000's when big body kits and graphics were in fashion. When I see them in cars now I can't help have a chuckle to myself haha

 

That's interesting and i was surprised to find nothing in the owners hand book about cooling down.
I thought the idea of letting the engine idle for 30 sec or so after just coming off boost was due to the turbine still spinning at hight rpm but with no lube as the engine's oil pump could no longer lubricate the turbo with the engine off. The remaining oil on the bearings could carbonise due to heat and no oil flow. This must not be the case with our cars or you would think it would be covered in the hand book.

 

I thought owners hand books / instruction manuals were for women anyway

 

^^^ lmao