Td5 D2 engine - MAP test (3)

Did two more test runs today. Drove the same route as before and the main aim was to get a recording of the max boost available.

Nothing has been done to the engine since last time. The ProVent has still to be connected up and none of the hoses have been cleaned out. Today's journey was to purchase 2 Ltr of white spirit to be used as a cleaning agent for the oil contamination in the intake hoses.

Before the test run began, I ran the output test from the Nanocom to operate the Wastegate modulator. I had hoped to be able to hear the solenoid 'clicking' as advised, but nothing was heard. On the Nanocom screen there was confirmation of the test taking place, but no indication of failure was shown.

On the open road I noticed that 70mph (114km/h) in 5th was at around 2.7k rpm. indicated. The exact figure will be in the data, (2828rpm) and initially I was looking to get the engine rev to 3k. Didn't want to push it in 5th any more then that. I recall being happy with the performance at that speed.

On the 4th test and while going up the on-ramp in 4th, the indicated revs hit 3k which was a lot of fun!

MAX BOOST READINGS : T4/198

MAP - 219.6 k/pa      AAP - 99.08 k/pa
TURBO BOOST  -  120.52 k/pa

This was achieved at 2585 rpm in 4th gear and under load proving the 'max boost' level is dependent on the gearing in use. The condition of overboost can be encountered in all gears.

CONCLUSIONS :

The target MAP reading is 242 k/pa so there is still a long way to go. Assuming the sensors and the Modulator to be functioning correctly that only leaves the wastegate actuator to be 'adjusted'.