Your emp (exhaust manifold pressure) sounds like its too high.Ideally you want it to be a little lower than boost but thats hard to acheive on low boost ie below 20 psi, maybe 2 to 4 psi higher than boost would be achievable.Then you will need to look at a different map sensor the std acv seems...
The main reason for having a fuel cooler on the return to the tank is that very hot diesel is explosive and in a plastic tank is a real hazard.The other reason is if you keep the the fuel cooler ideally between 25 and 45degrees c its worth 5% increase in power.
How did they measure compression ratio? theres nothing i know of that will increase the compression enough to cause poor performance by changing the head gasket.Id bet on injectors. either not set properly or if its done over 100k miles then injectors u/s.
Its not yet due to work commitments but all being well ill be able to start on it again in the next couple of weeks.I have been waiting for some nozzles to turn up but all those who have promised to deliver havnt so its took the back burner.
It is on hold at the mo as steve says ive been doing my Golf 2 edition 1 turbo conversion.When you get promised parts that never turn up its a bit disallusioning and i had lost the will to carry on with the project but im back on track now and it will be finished and it will be very very...
Good pics of a manifold that hasnt enough supports.Sorry to say it but your gona have to start again there will be loads of hidden cracks in all the pipework and it all has to support a heavy turbo and it gets worse when the manifold heats up too.
To my knowledge a faulty coolant temp sensor wont give the correct signal to the ecu to to provide the right temperature reading.It wont generally increase the fuel to compensate for it being out of range.I dont think it will make that much difference.on a petrol engine yes but not on a tdi