ivan Posted July 14, 2005 Share Posted July 14, 2005 Newbie question time. I'm not happy with the stock boost gauge on my JSpec ('98 5-dial dash) because it only shows "- 0 +" without any values. The car's had 2nd (Chris Wilson) decat so may be running too high a boost for all I know. I know the restrictor ring's not fitted. What boost gauge would you recommend as a direct replacement for the stock one to give me peace of mind? I'm totally new to turbos so have a lot to learn... Cheers edit-- Corrected by Tim, it's had the 1st decat Quote Link to comment Share on other sites More sharing options...
Jake Posted July 14, 2005 Share Posted July 14, 2005 No chance Ivan mate. There are no decent bost gauges that small. You'll just have to install an extra gauge of some sort. If you've decatted and got a FCD fitted you NEED to know how much boost you're running. Have you got a FCD fitted? Do you ever hit fuel cut? I did on my 98 VVTi TT with just the front cat removed. Quote Link to comment Share on other sites More sharing options...
ivan Posted July 14, 2005 Author Share Posted July 14, 2005 Give me a chance Jake - I've only had the car a few weeks - I'm still getting used to her before I let my right foot completely loose. But on the one or two occasions that it "slipped" and I accidentally went up to 130 with foot flat down there wasn't any cutout. AFAIK there's no FCD fitted. (It's TimWildman's old car.) Ah well, I may have to lose the l/h air vent then Cheers Quote Link to comment Share on other sites More sharing options...
Jake Posted July 15, 2005 Share Posted July 15, 2005 I think you're right, there is no FCD fitted - because Tim was selling it on here a while ago Quote Link to comment Share on other sites More sharing options...
merckx Posted July 15, 2005 Share Posted July 15, 2005 Defi gauges are very nice but they aren't cheap. You need to buy the controller aswell! You can remove the clock and put one in it's place. I bought a 52mm defi gauge which I thought would be a perfect fit. It was actually a bit small, I had to make an adapter ring to make it neatly fit. Quote Link to comment Share on other sites More sharing options...
bromy Posted July 15, 2005 Share Posted July 15, 2005 A 52mm gauge does not fit the clock arpeture as merckx says, you have to make a ring of some type or maybe get a 60mm one and dremmel the rest of the material out, i have just fitted two look at link below. http://www.mkivsupra.net/vbb/showthread.php?t=42630 nick Quote Link to comment Share on other sites More sharing options...
Soonto_HAS_soop Posted July 15, 2005 Share Posted July 15, 2005 I've seen a couple of J-Spec facelifts with a 52mm boost gauge installed into the stock location, but they all dremmel out the face and install it over the standard faceplate. I had a look, but it was far too complicated compared to a pillar mounted version, so didn't do it. You will have to cut all of the rear of the instrument cluster out if you wanted to do it, which I wasn't willing to do. Quote Link to comment Share on other sites More sharing options...
ivan Posted July 15, 2005 Author Share Posted July 15, 2005 I think you're right, there is no FCD fitted - because Tim was selling it on here a while agoThere must have been a rerason for that then - he must have found it didn't need it. [fingerscrossed] Quote Link to comment Share on other sites More sharing options...
nigelc Posted July 15, 2005 Share Posted July 15, 2005 When I had only the lower (2nd) cat fitted on the VVTi the boost gain was minimum. I believe the 1st cat (as with all Jspecs) controls / limits the boost. Until this is removed, you shouldn't get much over standard boost (IIRC). Quote Link to comment Share on other sites More sharing options...
nigelc Posted July 15, 2005 Share Posted July 15, 2005 And therefore, no FCD will be needed... Quote Link to comment Share on other sites More sharing options...
Timwildman Posted July 15, 2005 Share Posted July 15, 2005 It was the first cat that came out, But it never hit boost cut when I drove it so I didn't fit the FCD. Quote Link to comment Share on other sites More sharing options...
Willson Posted July 15, 2005 Share Posted July 15, 2005 Not sure of the stock facelift gauge size, but Omori do a very small one that is used by the mr2 people... http://www.deucecoupe.org/img/omori.jpg Quote Link to comment Share on other sites More sharing options...
Gazboy Posted July 15, 2005 Share Posted July 15, 2005 Not sure of the stock facelift gauge size, but Omori do a very small one that is used by the mr2 people... http://www.deucecoupe.org/img/omori.jpg Is there anywhere that can go ona 93-97 Supra? I really don't want a stonking great big 60mm jobbie! Quote Link to comment Share on other sites More sharing options...
Willson Posted July 15, 2005 Share Posted July 15, 2005 60 is rather large. Most people go with the 52mm in the clock space. The one above is 45mm when in its case. I'm sure you could get a mounting pod of some sort. The thing is with boost gauges, is that you either need to be able to keep an eye on it, which means pillar mount, or get one with a peak warning, which means 60mm I believe. Quote Link to comment Share on other sites More sharing options...
merckx Posted July 15, 2005 Share Posted July 15, 2005 A 52mm gauge is too small to put in place of the clock on the facelift car without making an adapter. I fitted a piece of black plastic behind with the correct size hole. I had a sheet of 3mm black plastic so I made a 52mm diameter hole in it and glued it on the other side of of the dash panel. It's a little set in from the front, the gauge fits in nicely and looks neat! http://i4.photobucket.com/albums/y122/rexmerckx/CIMG0730.jpg http://i4.photobucket.com/albums/y122/rexmerckx/CIMG0734.jpg Quote Link to comment Share on other sites More sharing options...
ivan Posted July 15, 2005 Author Share Posted July 15, 2005 It was the first cat that came out, But it never hit boost cut when I drove it so I didn't fit the FCD. Cheers for that Tim. (And I saw the speedo pic on your website, so you've definitely driven it faster than I will. ) PS. Watched your "Nur or Bust" videos too. But it looks to me that the stretch where you hit 167 was more like the motorway near Gent rather than inside Germany. Am I right? Quote Link to comment Share on other sites More sharing options...
Timwildman Posted July 16, 2005 Share Posted July 16, 2005 PS. Watched your "Nur or Bust" videos too. But it looks to me that the stretch where you hit 167 was more like the motorway near Gent rather than inside Germany. Am I right? No comment esp at 1:39 on a sat morn P.S. that was before the de-cat.. P.P.S must change avtur Quote Link to comment Share on other sites More sharing options...
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