Comments on: New (Favourite) Porsche Turbo http://www.influx.co.uk/wordpress/blog/new-favourite-porsche-turbo/ Cars, Bikes, People, Culture Thu, 26 Jan 2012 00:16:45 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: michaelfordham http://www.influx.co.uk/wordpress/blog/new-favourite-porsche-turbo/comment-page-1/#comment-1419 michaelfordham Mon, 08 Feb 2010 22:46:11 +0000 http://www.influx.co.uk/wordpress/?p=12169#comment-1419 Thanks for the technical background. An early Turbo Fave of mine was the RS Turbo <a href="http://img.photobucket.com/albums/v74/mungus/B200%25200RY/IMAGE_086.jpg" rel="prettyPhoto" rel="nofollow">http://img.photobucket.com/albums/v74/mungus/B2...</a><br>Was a wheezy, wobbly beast back back in the early eighties it ruled the streets of the London suburbs. Pure aspiration and a little pointless, but it turbo-charged the automotive dreams of my peer group...<br><br>MikeF Thanks for the technical background. An early Turbo Fave of mine was the RS Turbo http://img.photobucket.com/albums/v74/mungus/B2…
Was a wheezy, wobbly beast back back in the early eighties it ruled the streets of the London suburbs. Pure aspiration and a little pointless, but it turbo-charged the automotive dreams of my peer group…

MikeF

]]> By: DR1665 http://www.influx.co.uk/wordpress/blog/new-favourite-porsche-turbo/comment-page-1/#comment-1417 DR1665 Mon, 08 Feb 2010 20:07:40 +0000 http://www.influx.co.uk/wordpress/?p=12169#comment-1417 That's certainly a stunning Porsche. I've always wondered why American manufacturers insist upon using pushrod V8s to deliver the sort of power developed by the flat-sixes in the Porsches over the years. Yawn.<br><br>Variable geometry turbochargers were used back in the 80s by Chrysler in their Dodge Omnis. For those unfamiliar with this technology, these turbos feature adjustable fins on the compressor wheel. At lower power (read: vacuum/boost reference from the intake manifold), a solenoid activates a mechanism which changes the geometry of the compressor wheel. This gives the blades more "bite" to move more air at lower compressor speeds. As manifold pressure increases (boost), the solenoid again adjusts the geometry to reduce this bite and flow more air. This technology has also been applied in large diesel for some time as well. It's added complexity to a system already under pressure (pun), but it's a smart move for sure.<br><br>My favorite turbo? It's hard to choose. I adore anything running the formidable Mitsubishi 4G63T engine - Eclipse, Talon, Lancer Evolution, Galant VR4. These lumps have been known to handle double their factory delivered 220bhp through larger turbochargers and bolt-on fuel system improvements. Today, there are 2.0L 4G63Ts pushing beyond 1000whp. It's a solid mill and one that I think will stand as a classic moving forward.<br><br>Beyond that, it's hard to choose a favorite turbo model when you've got the rally bug. Two words: Group B. Sport Quattro? Delta Integrale S4 Evo? Rs200? Fantastic cars. That’s certainly a stunning Porsche. I’ve always wondered why American manufacturers insist upon using pushrod V8s to deliver the sort of power developed by the flat-sixes in the Porsches over the years. Yawn.

Variable geometry turbochargers were used back in the 80s by Chrysler in their Dodge Omnis. For those unfamiliar with this technology, these turbos feature adjustable fins on the compressor wheel. At lower power (read: vacuum/boost reference from the intake manifold), a solenoid activates a mechanism which changes the geometry of the compressor wheel. This gives the blades more “bite” to move more air at lower compressor speeds. As manifold pressure increases (boost), the solenoid again adjusts the geometry to reduce this bite and flow more air. This technology has also been applied in large diesel for some time as well. It’s added complexity to a system already under pressure (pun), but it’s a smart move for sure.

My favorite turbo? It’s hard to choose. I adore anything running the formidable Mitsubishi 4G63T engine — Eclipse, Talon, Lancer Evolution, Galant VR4. These lumps have been known to handle double their factory delivered 220bhp through larger turbochargers and bolt-on fuel system improvements. Today, there are 2.0L 4G63Ts pushing beyond 1000whp. It’s a solid mill and one that I think will stand as a classic moving forward.

Beyond that, it’s hard to choose a favorite turbo model when you’ve got the rally bug. Two words: Group B. Sport Quattro? Delta Integrale S4 Evo? Rs200? Fantastic cars.

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