Idle to cool turbo

[bobthewidget]

Is it necessary to idle the 1.2 tsi to cool the turbo after a run?

Does anyone know if the turbo is water cooled?

Honest John always recommends it but I've read it's not needed if the turbo is water cooled.

[Huskoda]

No. Moderns turbos are cooled (many can even keep the pump running for a short time after power off) and you can turn it straight off. Another one of those old myths that don't apply to cars these days.

[Phil-E]

As long as you don't pull up to a stop quickly and turn the engine straight off. You must let the engine return to idle before switching off but no need to let it idle for a long time before switching off.

 

Phil

[camelspyyder]

Yes its a long time since I had to do that with my first turbo car (1984!!).  The reason was to prevent the turbo spinning too fast without oil pressure on shutdown. Didnt stop it eating the gearbox after 18000 and breaking the turbo at 22000 though

Edited 13 May, 2015 by camelspyyder

[bobthewidget]

Treat. Thanks.

[vee8essie]

could fit a turbo timer this will allow the engine to idle up to a minute depending on how you set it the engine should be allowed to idle before switching off  

[camelspyyder]

A turbo timer? LOL.

It's a Rapid, not a Skyline GT-R

My mates old R33 had one, but it had around 520bhp...

[Stormchaser]

Haha I was going to say the same.

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[vee8essie]

depends if you want to protect your pride and joy,s engine

[bluecar1]

as with everything common sense needs to apply,

 

if driving normally then there should be no need to idle to let the turbo cool down

 

if you have been driving it like you stole it, then park up then probably an idea to just let it idles a few seconds so the oil can take some of the heat away

 

so school runs and shopping not problems, track days etc give it a few seconds