smoking start

[i_sabberton]

my 997 turbo occasionally emits white smoke from its exhausts on start up. I haven't been able to identify what conditions cause it to do this, as it happens rarely. The car is under warrantee. My OPC has had a look and claims that this is normal behaviour and just a little unburnt fuel. Is it? Have you noticed your cars doing this?

I would like to change the exhaust to one that's more tuneful, but I'm holding off for fear of invalidating the warrantee on a car that may have an engine problem. Advice welcome.

Ian.

 

[Alex L]

Hi Ian

This is normal behaviour. To get rid of this, let the car idle for a minute or so when you get home before you turn off the engine.

With regards to exhausts, I would suggest Tubi or Cargraphic. Warranty will only be affected for the exhaust itself, not the whole car. If you remap your ECU then that's a different matter.

 

[garyw]

Ian, as Alex points out they do sometimes do this- normally when people are watching!!
Mine usually does it if I have moved it on the driveway and left to stand for a short time..

garyw

 

[Lancerlot]

Ian,

It's a charactistic of the boxer (not boxster [8|]) engine and nothing much to worry about.

All my 911's have done it for the past 30 years! []

Regards,

Clive

 

[i_sabberton]

Thanks guys, that's reassuring to hear. Time to order that Cargraphic exhaust system!

Ian.

 

[Alex L]

ORIGINAL: i_sabberton

Time to order that Cargraphic exhaust system!

My medium loudness one sounds like this:

http://video.google.co.uk/videoplay?docid=3699494440127631019

Loud version sounds like this:

http://www.youtube.com/watch?v=-YFYuVyeemM&feature=PlayList&p=8652EF70B51CD94A&playnext=1&playnext_from=PL&index=16

 

[i_sabberton]

thanks for those links.

My 993 has a medium Cargraphic (part CARP93ETS), which sounds great for the first 70 miles. I'm considering the standard Cargraphic for the Turbo as I want it to be bearable for long journeys. I'm sure that it will sound better than the Porsche exhaust that it came with. What do you think?

Ian.

 

[Alex L]

I have the CARP97TETR version:

Sportexhaustsystem stainless for 997 TURBO OBD2

This TÃœV approved and certified sportexhaustsystem from turbochargers backwards has been developed with RS-Tuning on their in house dyno. Part of this system are special large 130mm trimetal catalysers which are fully OBD2 compliant. This mandrel bent system is developed for maximum flow and achieves a powerincrease of 19kw (25PS) and a torque increase of 30Nm with a reduced backpressure of nearly 50%. A deep throaty sound and a weight reduction of 5kg are further advantages of this hand-made quality stainless steel system which is lifetime guaranteed to the original purchaser (Catalysers carry 2 year warranty).
Not covered for Racing or offroad use.

3 sound levels available.

incl.2 x 80n Trimetal catalysers
incl.2 x heatshields and bandstraps

It's dead quiet in the cabin with the windows up. Outside on the other hand you wouldn't believe how far away you can hear the car roaring from!

 

[okellyt]

ORIGINAL: Alex L

It's dead quiet in the cabin with the windows up.  Outside on the other hand you wouldn't believe how far away you can hear the car roaring from!

I can hear Alex start his car up from over here in Essex........................[]

Seriously though, from outside Alex's exhaust is very, very loud