Phil Wall Posted March 20, 2002 Share Posted March 20, 2002 I believe the part I am referring to is called the orifice, unless I have had too many Glenmorangie's. It is a small part that fits in the Y piece that connects to the vacuum hoses. Does anyone know what purpose it serves and what is the impact of not fitting it? (Please, only on topic answers). What do I do if I don't have an orifice? I wish I had not asked that. Link to comment Share on other sites More sharing options...
THOR Racing Posted March 21, 2002 Share Posted March 21, 2002 Errr Orifice is another word for opening. I think you are referring to the FILTER! Is it a little disc like thing with a small diameter pipe on either side. This should be located in series (in-one) with the gauge. I'd say it's best to fit it but not sure why as the air is filtered anyway at this point. Maybe the electronics inside are very sensitive and they don't know where you are actually going to fit it so to be sure they supply their own little filer. Regards Pete Link to comment Share on other sites More sharing options...
Guest Martin F Posted March 21, 2002 Share Posted March 21, 2002 Nope it's not a filter. It's more like a little brass nipple (Ohhhh Errrrrr Missus!) I have the same gauges, fitted my nipple bit, but wasn't too sure of it's purpose. Link to comment Share on other sites More sharing options...
Alex Posted March 21, 2002 Share Posted March 21, 2002 I've got a Greddy boost gauge can any one post a photo of this bit please so that I know what I'm looking for?? I didn't fit it but would like to know where its attached, right now I have no idea where its plumbed in other than on the intake side. Link to comment Share on other sites More sharing options...
Guest Martin F Posted March 21, 2002 Share Posted March 21, 2002 It's the orifice (great description!) shown at the bottom with the T. http://www.mkivsupras.co.uk/ Link to comment Share on other sites More sharing options...
Phil Wall Posted March 21, 2002 Author Share Posted March 21, 2002 Thanks guys, I just read somewhere that it is an optional fitment and acts as a restrictor and reduces needle flicker at tick-over. Alex if you have not fitted one, does your needle flicker at tick over? Link to comment Share on other sites More sharing options...
Alex Posted March 21, 2002 Share Posted March 21, 2002 Err...never really noticed.... I'm sure I would have done if it did....I'll go hunting for the bits tomorrow afternoon (half day yey!!) Cheers for the piccy Link to comment Share on other sites More sharing options...
Phil Wall Posted March 21, 2002 Author Share Posted March 21, 2002 Thanks Mark, just wanted to know, as my kit does not have the orifice or Y piece so I am just going to use a T for now. Link to comment Share on other sites More sharing options...
Alex Posted March 21, 2002 Share Posted March 21, 2002 Who's Mark??? Link to comment Share on other sites More sharing options...
Phil Wall Posted March 21, 2002 Author Share Posted March 21, 2002 Shit, you noticed!!:o Link to comment Share on other sites More sharing options...
Phil Wall Posted March 23, 2002 Author Share Posted March 23, 2002 The gauge works fine with a 4mm T piece in place of the Greddy Y and orifice. No problems with flicker. The gauge works well, peak hold and warning are very useful. Link to comment Share on other sites More sharing options...
Nic Posted March 24, 2002 Share Posted March 24, 2002 Phil Good to hear it is all working fine now. Nic Link to comment Share on other sites More sharing options...
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