Date: Sun, 22 May 2005 09:16:19 GMT From: Paul Halliday <pjghnospamyonder.co.uk> Subject: Re: CAN i run a BLOW OFF VALVE safely??????
in article 1116734094.756680.318390nospam2000cwa.googlegroups.com, es at saab9turbonospamo.com wrote on 22/05/2005 04:54: > IF I run a atmospheric blow off valve instead of a recycling diverter > valve on my 1990 saab 9000 cd 2.0 turbo will it not run as well? will > the check engine light appear? has someone done this and can tell me > how it runs? I hear it is not good for the ECU and will not spool up as > fast. If it is ok which one is the best out there for the $$? i really > like the sound of the blow off valves:) You can, but it must be a double piston type valve like the Forge Motorsports FMDV004 or Baileys DV26. Being a closed loop FI system, you will get a slight richness when the valve "blows", but it won't be noticeable in practice apart from quickly letting off the gas in higher gears; there's a slight stumbling feeling. You won't get any benefit, other than the sound ... Which might not be becoming of a lofty CD :) Paul 1989 900 Turbo S http://saab.go.dyndns.org/