Supercharged and turbochaged m3.. Hmm pretty nuts.
02-08-2005, 03:33 PM
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Supercharged and turbochaged m3.. Hmm pretty nuts.
Theres videos on the monster. I dont think this is a repost.. But w/e its a cool find.<ul><li><a href="http://www.savspeed.co.za/index.php?module=pagemaster&PAGE_user_op=view_ page&PAGE_id=9&MMN_position=14:14">http://www.savspeed.co.za/index.php?module=pagemaster&PAGE_user_op=view_ page&PAGE_id=9&MMN_position=14
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02-09-2005, 04:17 AM
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Only the S4 version of the rally car, the road car was a turbo only. They did it to minimize turbo
lag from the big Garret (T4 derived) turbo. The engine only displaced 1.76 liters, so they had a problem spooling that beast with only an 8.5:1 compression ratio. The engine ended up making a little under 500 hp in race trim.
That said, I still think a supercharger and turbocharger on that bimmer is just dumb. It has a big, lusty engine and doesn't need help turning even a huge turbo. Second, turbo technology has come a long way since 1985. In fact, the next gen of Lancia street car, the Delta Integrale HF, can make well in excess of 500hp with a 2.0 L engine and a big turbo with some tuning. It came stock with very mild tune and something north of 200 hp in 1991-92.
That said, I still think a supercharger and turbocharger on that bimmer is just dumb. It has a big, lusty engine and doesn't need help turning even a huge turbo. Second, turbo technology has come a long way since 1985. In fact, the next gen of Lancia street car, the Delta Integrale HF, can make well in excess of 500hp with a 2.0 L engine and a big turbo with some tuning. It came stock with very mild tune and something north of 200 hp in 1991-92.
02-09-2005, 04:22 AM
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It's a really inefficient way to make power. In the sanctioning bodies that allow two power adders
all the top runners use a nitrous/turbo setup. The losses from supercharging are just too great, and nitrous is free power except for the slight weight penalty, which may actually be less than the weight of a SC.
