ProZac Posted August 2, 2013 Share Posted August 2, 2013 By the looks of it, either of those lines should work. Doesn't need to be a massive hose, as there isn't much volume or air actually being shifted, and it has plenty of time to respond... That being said you might notice slight spiking of the boost level before it settles back to the natural pressure your wastegate spring allows. Quote Link to comment Share on other sites More sharing options...
ep82-toy-let Posted August 2, 2013 Author Share Posted August 2, 2013 sweet as, thanks mate Quote Link to comment Share on other sites More sharing options...
ep82-toy-let Posted August 2, 2013 Author Share Posted August 2, 2013 By the looks of it, either of those lines should work. Doesn't need to be a massive hose, as there isn't much volume or air actually being shifted, and it has plenty of time to respond... That being said you might notice slight spiking of the boost level before it settles back to the natural pressure your wastegate spring allows. do you think its pointless to change the actuator to the higher rated one I have then? just re route that hose and I should be back to original boost? Quote Link to comment Share on other sites More sharing options...
ProZac Posted August 2, 2013 Share Posted August 2, 2013 Yeap, should be back to your original 10psi boost at the intake manifold, if that's there you move the pressure signal to. 1 Quote Link to comment Share on other sites More sharing options...
NaN Posted August 2, 2013 Share Posted August 2, 2013 NaN Quote Link to comment Share on other sites More sharing options...
ProZac Posted August 2, 2013 Share Posted August 2, 2013 actually it doesn't really move air in the line, it's only a pressure wave. The line fills up and exerts pressure on a diaphragm in the wastegate actuator. Think of it like a balloon that cannot expand, you don't really have to add 'much' more air to increase the pressure inside quite alot. Ahhh so some air does move then, just not much. So you could almost say that the volume of air being moved around to fill the 'balloon' isn't much. Phew, glad we cleared that up. 1 Quote Link to comment Share on other sites More sharing options...
NaN Posted August 2, 2013 Share Posted August 2, 2013 NaN 1 Quote Link to comment Share on other sites More sharing options...
ProZac Posted August 2, 2013 Share Posted August 2, 2013 Nah: Star-trek demotivators are always trumps . 2 Quote Link to comment Share on other sites More sharing options...
ep82-toy-let Posted August 2, 2013 Author Share Posted August 2, 2013 actually it doesn't really move air in the line, it's only a pressure wave. The line fills up and exerts pressure on a diaphragm in the wastegate actuator. Think of it like a balloon that cannot expand, you don't really have to add 'much' more air to increase the pressure inside quite alot. but yeah; taking the pressure reference from the inlet manifold it generally the go, the pressure reference is used to control the turbo chargers output by increasing (to get more), or decreasing (to get less), the hot gases available to the turbine (hot side), of the turbo. Thereby increasing the shaft power available to the cold side (compressor). The compressor, usually has a tap / line on it for taking the reference point there. But if you have a front mount Intercooler then you would want to seal that (short vaccum line, bolt in it, clip to seal hose around bolt), and then get the reference at the manifold to ensure your getting a reading which accounts for the drop in pressure caused by all that piping and the intercooler itself. I hope that explains the basics, you can ignore the 'working harder' argument, it's only an issue after 18 odd psi when you need to start watching temps, and your A/F a bit closer. For 10psi it's so low that stuff is not really an issue. cool thanks man. will be looking into all this today. cheers 1 Quote Link to comment Share on other sites More sharing options...
ep82-toy-let Posted August 15, 2013 Author Share Posted August 15, 2013 update, I moved the line to the manifold, took it for a cane, and at around 6 psi, it coughs and splutters like its got a boost leak or something? never did this until I moved the hose like I was recommended to do. any ideas? Quote Link to comment Share on other sites More sharing options...
DJZ Posted August 15, 2013 Share Posted August 15, 2013 How did you plumb it up? Did you tee it into another hose? Quote Link to comment Share on other sites More sharing options...
ep82-toy-let Posted August 15, 2013 Author Share Posted August 15, 2013 How did you plumb it up? Did you tee it into another hose? yea, went and brought some new vac hose, and a t join Quote Link to comment Share on other sites More sharing options...
DJZ Posted August 15, 2013 Share Posted August 15, 2013 What did you tee it in to? Did you bung up the barb on the compressor housing? Quote Link to comment Share on other sites More sharing options...
ep82-toy-let Posted August 15, 2013 Author Share Posted August 15, 2013 What did you tee it in to? Did you bung up the barb on the compressor housing? tee'd it into the only vac hose I could see that was going into the intake manifold, there was a second hose but all that hose is doing is going into the tappet cover... ? and yea I plugged up the compressor, just left a small length of hose on it and put a bolt in the end and hose clamped it. Quote Link to comment Share on other sites More sharing options...
kpr Posted August 15, 2013 Share Posted August 15, 2013 there is more than one there. dont tee it off the map senor. firewall side of manifold. does the actuator have the 2 ports in it like the factory one? if so you need to block one. if you want to retain the factory hi / low boost setup. if it still has it. best to leave factory vac line setup. but it generally becomes fairly useless quickly after a few mods. Quote Link to comment Share on other sites More sharing options...
mjrstar Posted August 15, 2013 Share Posted August 15, 2013 Did you plumb it in the same line that feeds the fuel pressure reg ? Quote Link to comment Share on other sites More sharing options...
ep82-toy-let Posted August 15, 2013 Author Share Posted August 15, 2013 PLEASE NOTE, THIS IS NOTMY ENGINE, BUT SIMILAR SET UP... ive tee'd presseure line into the blue hose to the left of the intake manifold... then to the actuator... Quote Link to comment Share on other sites More sharing options...
kpr Posted August 15, 2013 Share Posted August 15, 2013 you need to see where the line goes you tee'd into. its been a long long time since ive played with a stock 4efte. cant remember where that line goes. if you want to make it work, without teeing into stuff. and be 100% sure its going to work. get a nipple welded onto your intercooler pipe after the intercooler. run a hose from there to the actuator. Quote Link to comment Share on other sites More sharing options...
ep82-toy-let Posted August 15, 2013 Author Share Posted August 15, 2013 you need to see where the line goes you tee'd into. its been a long long time since ive played with a stock 4efte. cant remember where that line goes. if you want to make it work, without teeing into stuff. and be 100% sure its going to work. get a nipple welded onto your intercooler pipe after the intercooler. run a hose from there to the actuator. ill go have a look where it goes Quote Link to comment Share on other sites More sharing options...
ep82-toy-let Posted August 15, 2013 Author Share Posted August 15, 2013 right, just had a look, and I now have a suspicion its rong... the line I tee'd it too goes to my bov, theres a few more lines, two coming out of the boost solenoid, 1 goes to a steel pipe that disappears down itn the engine somewere, 2nd one goes to the intake pipe, I have a feeling I should have tee'd it off the one that goes into the intake pipe? Quote Link to comment Share on other sites More sharing options...
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