ebdesignDEFENDER Posted October 20, 2008 Share Posted October 20, 2008 Can tell if it has sense to buy an turbo boost gauge? thanks Quote Link to comment Share on other sites More sharing options...
stuntman Posted October 20, 2008 Share Posted October 20, 2008 It's always handy to know what boost the turbo is running at, so I would say yes Quote Link to comment Share on other sites More sharing options...
JimAttrill Posted October 20, 2008 Share Posted October 20, 2008 It makes much more sense than a rev-counter - I have both. The boost gauge will instantly tell you if there is something wrong with your turbo or the turbo pipes. It will also spot (or you can spot) a blockage in the system eg crud in the intercooler. It is also easy to fit, non-electronic, pretty cheap and fun to watch. Quote Link to comment Share on other sites More sharing options...
silvio Posted October 20, 2008 Share Posted October 20, 2008 ...and which would be the best place to measure the boost, Jim? In a Td5, with the nanocom you get the reading from the sensor on the inlet manifold, so you get the actual pressure jut before air enters the cyilinders. Would this be the best place in general, so in a 300tdi should one plumb the pick-up hose in the intake manifold as well? Quote Link to comment Share on other sites More sharing options...
tacr2man Posted October 20, 2008 Share Posted October 20, 2008 I just plumbed one into the takeoff for the existing boost tapping with a t piece HTSH Quote Link to comment Share on other sites More sharing options...
santalars Posted October 20, 2008 Share Posted October 20, 2008 Would be interested as well. Can I ask who is selling them? Quote Link to comment Share on other sites More sharing options...
ebdesignDEFENDER Posted October 20, 2008 Author Share Posted October 20, 2008 So,on a 300tdi i have to buy an mecanical gauge? How can I instal it? Thanks Quote Link to comment Share on other sites More sharing options...
JimAttrill Posted October 20, 2008 Share Posted October 20, 2008 Mine is tapped into the boost line from the turbo to the injection pump. This seems to be the easiest way to do it. You can, of course, drill and tap the inlet manifold which will give you the reading after the intercooler. It doesn't make much difference either way. Quote Link to comment Share on other sites More sharing options...
ebdesignDEFENDER Posted October 20, 2008 Author Share Posted October 20, 2008 Mine is tapped into the boost line from the turbo to the injection pump. This seems to be the easiest way to do it. You can, of course, drill and tap the inlet manifold which will give you the reading after the intercooler. It doesn't make much difference either way. Do you have some pics of the mounting place? Thanks very much Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted October 20, 2008 Share Posted October 20, 2008 Mine is tapped into the boost line from the turbo to the injection pump. This seems to be the easiest way to do it. You can, of course, drill and tap the inlet manifold which will give you the reading after the intercooler. It doesn't make much difference either way. Or you could do both and fit a pneumatic changeover valve to select which you want to read from B) Quote Link to comment Share on other sites More sharing options...
western Posted October 20, 2008 Share Posted October 20, 2008 my boost gauge, sits on top of the dash near the screen pillar & the pipe goes through the bulkhead [same way as the wiring] & runs along back of bulkhead to the 'T' piece at the turbo boost actuator/wastegate. got mine from ebay, must get the illumination sorted. Quote Link to comment Share on other sites More sharing options...
patch1 Posted October 20, 2008 Share Posted October 20, 2008 Mine is plumbed into the inlet mainifold. The is a screw in bung at the back of my 300Tdi manifold so had a fitting made. Quote Link to comment Share on other sites More sharing options...
MudAllOverIt Posted October 20, 2008 Share Posted October 20, 2008 Do you have some pics of the mounting place? I drilled and tapped the inlet manifold to fit mine - pic below: Quote Link to comment Share on other sites More sharing options...
santalars Posted October 21, 2008 Share Posted October 21, 2008 I drilled and tapped the inlet manifold to fit mine - pic below: Is this an exhaust temperature sensor on the turbo? Quote Link to comment Share on other sites More sharing options...
MudAllOverIt Posted October 21, 2008 Share Posted October 21, 2008 Is this an exhaust temperature sensor on the turbo? Yes -- it's all McNally kit for their combined EGT/Turbo Boost gauage. I used an OE EGR gasket in combination with the drilled and tapped EGR blanking plate that McNally supply (it's listed for VW applications but is perfect for the 300Tdi). The OE gasket adds a fair bit of height (it's the one that sandwiches a spacer inbetween two gaskets) and in combination with the McNally plate provides for a fair bit of depth for the thermocouple. Quote Link to comment Share on other sites More sharing options...
kev.rev Posted October 21, 2008 Share Posted October 21, 2008 So,on a 300tdi i have to buy an mecanical gauge?How can I instal it? Thanks I have got one fitted to my 300tdi, I got the gauge off ebay and it was a straight swap for the clock in the dash, it came with the pipe and "T" piece you need. I fitted it in the pipe between the turbo and injector pump. All seems to work ok. What boost dose everybody get mine reads 15-16 psi when my foot is flat. Quote Link to comment Share on other sites More sharing options...
MudAllOverIt Posted October 21, 2008 Share Posted October 21, 2008 What boost dose everybody get mine reads 15-16 psi when my foot is flat. I get 1.2 bar max (measured at the inlet manifold as per the pic above). 1.2 bar = 17.4 psi. You should see what a sustained uphill run at full boost holding a steady 65mph (on the A9 actually) into a strong headwind does to the exhaust gas temperature :lol: Cheers, Quote Link to comment Share on other sites More sharing options...
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