Yes, good idea ...
The ECU went back to Wolf and was promptly returned as 'no fault found' - they did say that the ECU would power down if the 5v line was grounded - as there were only 2 sensors that used the 5v it was pretty easy to trace - The TPS .. this was fine and a 5v wire in the shielded cable that went to the cam angle sensor - this is not used on the AGZE but still ran the length of the shielded cable, we cut the wire at the ECU end (not used remember), and presto it all fired back into life! - So after the 8 odd hours of running the shielding must have pulled back with the heat and exposed the end of the wire which then shorted to the shield ...
The Miss fire was interesting - speaking with a bloke I work with who has an EVO said he tried the bosch iridium plugs and got a misfire high up in the rpm range - the tuner replaced the plugs with NGK iridium and the misfire vanished ..
Another 3 hrs on the dyno and it was on the trailer home..... finished .... for now anyway..
there were several issues. 1st, a sudden drop of boost at about 6k RPM - this turned out to be the BOV - far too small for the supercharged application, a very large unit was setup with the assistance of turbo smart and I plumbed it back into the intake - no ridiculous noise, and no loss of boost...
The intake temp raised sharply and quickly on a power run - after speaking with PWR we cam to the conclusion that the coolant probably wasn't flowing. I purged the system and filled it again with extension pipes making sure there was no air locks – seems to be flowing nicely now.
Now for the serious issues….
It’s low on HP – only about 200. We are aiming for another 150 ..Torque is double the std car but we can’t get more HP. One problem is compression, it’s at a meagre 8:1 (maybe a tad lower!) – we need to pull this up to a target of 9:1. I am using a .51 thou (1.4 mm) cometic MLS head gasket, I can lower this to a .27 thou MLS that effectively will pull us up to about 9:1 – Before doing this we will measure everything and make sure no valve/piston collisions will occur.
With the compression sorted we are going to focus on injectors and cams. There is a company in NZ that CNC machines CAMS to spec – the tuner and I are going to work out exactly what we want and get a set with HD springs – not too aggressive as we need to maintain about 20” of manifold vacuum at idle (brakes).
Injectors are currently 440cc Denso – these are being swapped out for 750 cc Bosch ones as the 440’s are at 85% currently.
So with these changes and another session on the dyno we are expected mid 300’s.. that should be achievable.
I have to say though – even 200 is fun ! – I have driven the car up the road and back and the front lifts and it is an absolute rocket! – I have had STi’s before and this currently would eat them up .. but it’s about setting targets and achieving them – I have a target and it’s not achieved …. Yet!...
I wont bother with photos as there are no external additions yet …