Landowner Posted August 11, 2014 Share Posted August 11, 2014 What will happen if I put the little pipe off the turbo (goes to pump) here instead of from turbo? Quote Link to comment Share on other sites More sharing options...
discomikey Posted August 11, 2014 Share Posted August 11, 2014 the pump will sense actual inlet manifold pressure rather than turbo pressure. this should in theory give it a bit more oomph and responsiveness but also a little more black smoke (which is obviously awesome anyway) if you plumb the wastegate into there too the turbo will become slightly more responsive and will boost slightly harder too. this is all due to the pressure drop between the turbo and the inlet manifold Quote Link to comment Share on other sites More sharing options...
Landowner Posted August 11, 2014 Author Share Posted August 11, 2014 the pump will sense actual inlet manifold pressure rather than turbo pressure. this should in theory give it a bit more oomph and responsiveness but also a little more black smoke (which is obviously awesome anyway) if you plumb the wastegate into there too the turbo will become slightly more responsive and will boost slightly harder too. this is all due to the pressure drop between the turbo and the inlet manifold Sounds good to me, why dont people do it then, haven't seen it before. makes sense to monitor pressure at manifold rather than at turbo? Quote Link to comment Share on other sites More sharing options...
Retroanaconda Posted August 11, 2014 Share Posted August 11, 2014 People do do it, hence why your photo shows how someone has put a pipe fitting in the back of the manifold there. Quote Link to comment Share on other sites More sharing options...
discomikey Posted August 11, 2014 Share Posted August 11, 2014 the best is to have a boost pressure guage at the turbo and at the manifold. and an EGT guage before and after the turbo. or is that just sad? Quote Link to comment Share on other sites More sharing options...
Landowner Posted August 11, 2014 Author Share Posted August 11, 2014 People do do it, hence why your photo shows how someone has put a pipe fitting in the back of the manifold there. I put that in mine as a take off for the boost gauge, its a windscreen washer nozzel Quote Link to comment Share on other sites More sharing options...
Retroanaconda Posted August 11, 2014 Share Posted August 11, 2014 There you go then, you're all set up Personally I wouldn't bother, Land Rover set the engine and fuelling up on the basis of the expected pressure loss in the intercooler/pipework. You'll get a boost of performance through doing it though, if you're happy to put the (admittedly small) extra load on the engine. I'm not, so I don't. Quote Link to comment Share on other sites More sharing options...
CwazyWabbit Posted August 11, 2014 Share Posted August 11, 2014 Erm, I thought the question was to connect the boost pipe to the manifold not the wastegate control pipe. All the responses are relating to the wastegate pipe not the boost pipe that goes to the injector pump. Quote Link to comment Share on other sites More sharing options...
Boydie Posted August 12, 2014 Share Posted August 12, 2014 I agree with Retro, if you're looking for more power, and the (possible) reduced engine life expectancy, connect the FIP to the manifold, however if you want your motor to remain standard and have slightly lower power and a longer engine life, leave it as is and simply use the connection shown on the manifold to operate a boost guage. Quote Link to comment Share on other sites More sharing options...
discomikey Posted August 12, 2014 Share Posted August 12, 2014 Erm, I thought the question was to connect the boost pipe to the manifold not the wastegate control pipe. All the responses are relating to the wastegate pipe not the boost pipe that goes to the injector pump. look at my post i spoke about both Quote Link to comment Share on other sites More sharing options...
CwazyWabbit Posted August 12, 2014 Share Posted August 12, 2014 look at my post i spoke about both the pump will sense actual inlet manifold pressure rather than turbo pressure. this should in theory give it a bit more oomph and responsiveness but also a little more black smoke (which is obviously awesome anyway) if you plumb the wastegate into there too the turbo will become slightly more responsive and will boost slightly harder too. this is all due to the pressure drop between the turbo and the inlet manifold How will it give more responsiveness? Surely connecting the boost pipe there will cause an extra lag for the on boost fuelling. Will it give a little more black smoke? The pressure at the manifold will be slightly lower so theoretically it will result in less on boost fuel. Quote Link to comment Share on other sites More sharing options...
toenden Posted August 12, 2014 Share Posted August 12, 2014 I have connected my wastegate to a similar nozzle in the manifold and my fip as standard directly to the turbo. This have given me slightly more black smoke from low rew takeoff and slightly more omph at the same time... Mads Quote Link to comment Share on other sites More sharing options...
Landowner Posted August 13, 2014 Author Share Posted August 13, 2014 Very interesting input, keep it coming Quote Link to comment Share on other sites More sharing options...
Scotts90 Posted August 13, 2014 Share Posted August 13, 2014 To get more oomph without tweaking the wastegate, the actuator will need to see less boost whilst the turbo spools. If the actuator is connected to a source that sees slightly less boost pressure than the turbo is producing, then the turbo will need to make more boost to cause the wastegate to open. Similar to fitting a bleed valve on the actuator feed pipe to "trick" the wastegate/actuator in staying closed longer. Not a great tuning method, but it works. This was a favourite method on RS turbos back in the day lol Quote Link to comment Share on other sites More sharing options...
discomikey Posted August 13, 2014 Share Posted August 13, 2014 How will it give more responsiveness? Surely connecting the boost pipe there will cause an extra lag for the on boost fuelling. Will it give a little more black smoke? The pressure at the manifold will be slightly lower so theoretically it will result in less on boost fuel. to be quite honest CW, i was blatantly chatting utter codswallop there, and you are correct. have you got a fork i can use for this pie? Quote Link to comment Share on other sites More sharing options...
CwazyWabbit Posted August 13, 2014 Share Posted August 13, 2014 Lol, happens to us all at times .... I did think for a minute I was going mad though Quote Link to comment Share on other sites More sharing options...
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