Caterham 170 experience

TL;DR : a bad idea, don't do it With the recurring failure of the wideband oxygen sensor (4 killed fair and square and 1 DOA) , I was ready to try about anything to increase reliability. The change in November consisted in increasing the heating delay in the ECU, and I did add a 25mm spacer to get the sensor out of the direct exhaust flow. As a reminder it's located 8 cm from the exit of the turbo. That (already third) sensor lasted for about 6 months, only to fail at the track day in March. I had a spare on hand that didn't even last 2 kilometers. I got yet another one, that was installed straight on the pipe this time and didn't even last a full month. What I think happened is that re-starting the car when the engine was still warm-ish (~40-50°C coolant) was the scenario that led to all those failures. That was a clear thing on track where I drove 20 minutes sessions followed by equivalent pauses. It was also the case when I only used the car to commute to work and ...

TL;DR : easy-peasy with the right tools Having replaced the mirrors with  SPA design ones , the originals were left laying on the desk downstairs. I thought it would be a good idea to remove them from their arms to save space and set them aside in a slim cardboard box. That was a mistake : once you remove the screw from the ball joint, there's not way to get it back, and all the hardware is left loose inside behind the glass. I knew from the first 2 minutes of this video of the build series by Kyle Townend that it could be a pain to deal with. He broke one and got the second out with a hot air gun.   I also read Lee's build blog where he states that Caterham advised him to submerge the mirrors in hot water to soften the glue. In both instances they had to get the mirrors on stalks attached to the windscreen stanchions, as the IVA does not allow the side screens for some reason (my guess is that the plastic windows are the actual concern as they can scratch easily). Anyway,...