Swiss Trackday Nova

[ExTrEmeOc]

I fitted the loom to the engine and put on the ignition.
I was suprised it came already mapped with a mapping for a C20XE

Ignition map


Fuel map


I made a short system check and everything seemed fine, so i sorted out the little stuff that needed to be done.

for example i had to make a temporary solution to connect the adjustable fuel pressure regulator. not pretty but it works


the first try to start the engine failed and shortly afterwards i was forced to take a brake because it began to rain


After the brake i began to find the solution to start my engine.
i checked:
ignition -> no fault
injection -> no fault
set the fuel regulator to 2.5 bar -> not the solution
cables -> positive lead for lambdasensor not connected .... shame on me


but that wasn't the solution... so i searched on. At least i had now a A/F ratio signal


i checked nearly every wire for a fault.


just out of curiosity i thought i might switch the iginition leads 1+4 and 2+3

after a short spin from the starter motor the engine fired and climed to 3000rpm. Unfortunately it began to rain once again. So i packed my stuff and called it a day.

[ExTrEmeOc]

One day after the successful start the skies cleared and i moved on to work on my nova

tided up the engine bay


and made some adjusments on the ecu


first start was very rough. the idle was very low for the cold engine


i adjusted the idle to get a higher rpm


1700rpm ... a bit high


As the water temperature climbed up a continuous lowered the idle speed to about 1200rpm



Then i had to calibrate the throttle position sensor.


after all adjustemnts in the ecu that had to be done i decided to do the first testdrive. i was a bit nervous as i stepped into the car. As i was on the driveway i nearly put in reverse and parked the car. Luckely i choosed to drive on

short stop to make a idle check and grab a picture


over all the first testdrive was a success.

[thegingerwhinger]

wow simply awesome stuff having a go at that yourself! well done!

[ExTrEmeOc]

Thanks! I'm trying hard to get as much as possible done by myself. I learned alot about the inner workings of the engine just by reading the KMS manual and see the effects it has.

But shortly after that the engine began to behave very strage. After 2 weeks i found the Problem: The brand new KMS Ignition Coil was faulty and managed to mess up my whole mapping.

I replaced it by the original GM Coil which works just as fine.
Therefore i soldered the GM connector to the loom.


Here you can see how much was upset due to the damaged Coil. As it turned out it was a lot more upset then this picture shows. Every red bit is corrected.


Here the fuel map after some corrections made by the lambdasensor.


Special thanks to Marcel for his help to find my Problem and supporting me!

[ExTrEmeOc]

Then its was time to improve the little things.

For easy access to the ecu, i made a hole where i could connect the lead permanently to the ecu.


The lead ends now in the glove compartment for easy plug and play.


And i made a custom shiftlight by myself.

4 LED's an a 270 ohm resistor soldered together


drilled 4 holes for the LED's in to the speedo cover.


perfect


The first test for the Shiftlight was made with the throttle position sensor. When the Sensor passed the value "10" the light had to go on.


aaaand it works!


The view from my perspective

[ExTrEmeOc]

Some new parts arrived lately:

Bonnet pins


Boot springs


25mm spacers


Wheel studs and nuts


and steel braided brake lines


And at the end the best part:

From 21.9 to the 23.9 im at the Nurburgring once again
My Nova faces the green hell.



I'm excited as a don't know what. Can't wait to drive a few laps on the track

[Liam]

What front strut brace is that you are using?

[ExTrEmeOc]

That's a Wiechers strut brace, as it is the rear strut brace.

[istf]

My friend linked one of your Nordschleife video today. I really like to watch this again!

[Mieran]

Where did you get the rose jointed arm from mate and how much was it?