Shifty1962
Well-Known Member
The turbo boost is not easily read by just reving the motor. If I do that on mine it never reads above 0.5 bar. You need to put the motor under load to get a true boost reading. Preferably taken at the inlet manifold.
Get out and find a good long incline (the steeper the better) - select third or fourth at about 30mph and bury the throttle.
You should see an immediate increase in boost - mine reads about 1.2 bar max - then the boost should settle down and increase smoothly as the revs increase.
Mine has been tweaked by Gary at TD5 Alive so I'm not sure what a bog standard set up should read. I would expect it to peak at 15psi or 1bar under load at full throttle. If it exceeds this then your ECU will log over pressure and adjust performance down (by reducing fuel injected) to keep the turbo spinning slower and inlet pressures down.
Dont give up on it as the TD5 is a very good motor once set up properly.
Get out and find a good long incline (the steeper the better) - select third or fourth at about 30mph and bury the throttle.
You should see an immediate increase in boost - mine reads about 1.2 bar max - then the boost should settle down and increase smoothly as the revs increase.
Mine has been tweaked by Gary at TD5 Alive so I'm not sure what a bog standard set up should read. I would expect it to peak at 15psi or 1bar under load at full throttle. If it exceeds this then your ECU will log over pressure and adjust performance down (by reducing fuel injected) to keep the turbo spinning slower and inlet pressures down.
Dont give up on it as the TD5 is a very good motor once set up properly.
