Last air cooled Porsche?
#32
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Yes it does
Two things...a huge feckin cooling fan on top of the engine which gave it a whining whirry sound. And also the exhaust had heat exchangers for the heater (which would gas the occupants if they leaked ). This made the exhaust note a bit raspy as obviously space for silencers was taken up by the heat exchangers.
Also old porkas has solid valve lifters which had to be adjusted every odd service, not sure of newer models, probably hydraulic these days therefore quieter.
More free-revving too IMO, but thats probably more to do with the flywheel weight and EFi -a blip of throttle on a old 3.2 in neutral would see it rev to 6000rpm within one second.
And pretty much anyone who has driven a pre-993 will have stalled it at some point. They had a proper ''mans" clutch (especially the ones with a cable operated clutch as opposed to the later hydraulic)
Last edited by ALi-B; 16 February 2012 at 12:05 AM.
#34
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Turn the volume right up - this is my drivetrain on idle - like a washing machine full of spanners
http://www.youtube.com/watch?v=1Tyizp7Z6Fc
http://www.youtube.com/watch?v=1Tyizp7Z6Fc
Last edited by Trout; 17 February 2012 at 01:26 PM.
#35
#38
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I guess with the air cooled you have all those fins and an absence of coolant filled cavities in the block/case and head. The coolant in a water cooled engine will muffle noise and I suppose the fins kind of resonate or project the mechanical noise out quite well?
Why did Porsche stop air cooled out of interest?
Why did Porsche stop air cooled out of interest?
As you have yourself noted, a water jacket attenuates a considerable amount of the mechanical noise that an engine generates, plus a water pump is slightly less noise than a fecking big fan
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Had a little bit of time at a local airfield
In car noise - not as good as the 996 GT3 but still nice in the car - video does not quite capture it.
I reckon 40-110 is between 6 and 7s including a lazy gear change
http://youtu.be/HGpJGSvKCto
In car noise - not as good as the 996 GT3 but still nice in the car - video does not quite capture it.
I reckon 40-110 is between 6 and 7s including a lazy gear change
http://youtu.be/HGpJGSvKCto
#41
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