Re: Turbo on a Jeep
On Wed, 31 Dec 2003 19:07:22 -0800, L.W.(ßill) ------ III
<----------@cox.net> wrote: > I thought the pop-off valve was just to limit the power of the Indy >type racer, like a restricter plate on a stock car's manifold. The turbo wastegate limits max boost via signals from the ECU. The pop-off valve or blow-off valve doesn't limit power, but protects the impeller/ turbine assembly and intake system from harmfully excessive pressure and stress. When the throttle plate slams closed, the turbo is still spinning a gazillion rpm and providing boost. The pop-off valve dumps all the high pressure air into the atmosphere, resulting in that loud Pro-Rally noise. A bypass valve is much more civilized and dumps the air via a hose back into the inlet to the compressor. I agree that turbos aren't usually suitable for off road use. Some are, like this non-Jeep application, which is unfortunately out of production: http://www.airpowersystems.com.au/sa...int_turbo.html For kicks, read the two magasine articles at the bottom. From what I have heard, this system was mainly sold to Middle Eastern sheiks looking for ultra-high top speeds from their Land Cruisers. There aren't very many in Oz or the USA. I have had a couple of high performance turbo cars and just loved them. John Davies Spokane WA USA |
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