Date: Mon, 6 Feb 2006 22:24:47 +0000 (UTC)
From: Craig's Saab C900 Site <>
Subject: Re: [Saab_c900] Are new turbo overboost switches for 8V engines available?

ShazWozza <> writes: >Craig's Saab C900 Site wrote: >> What is a Hobbes switch? 8-) >A pressure operated switch. Some folks spell them Hobbes and some Hobbs. I >suppose it is the name of the guy who first designed one. Examples being >your overboost detector, oil pressure switch yadda yadda >If you are really stuck for a genuine Saab overboost switch I don't see why >you can't use one. Ok thanks. I've found a few of them on Ebay. Seems that these generic items have a threaded connection. I have no idea what the pressure settings for the overboost switches used by Saab are, but there are a couple of these 'Hobbs' devices specifying 15 psi which sounds about right for an 8V non-APC turbo engine, though I'm open to correction... Craig. -- Craig's Saab C900 Page at | Craig's Classic Saab Workshop - Sydney .au | and other URL's Email: | For Saab 99/C900/9000 Enthusiasts World-Wide! Alternate: | Web-forums, galleries, library, links, etc.

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