Smart Crow.

https://www.youtube.com/shorts/vwZ39SLNDwM

From the video clip it looks like lots of wheel spin. Problem is improve the grip increase the chances of breakage. A local subi repairer put a much larger turbo on his race car Casper and it then ran slower times due to increased wheel spin.

Thats unfortunate so I guess they are now binned and start again. I hope he didn't make too many. CNC is great if as you said measured and the tooling set up correctly but things can and do go wrong where one off manufacturing is usually a bit more successful. I have seen where a CNC machines left u...

I know the design your talking about. I have a need for a large one around 12mm in dia but figure I'll just turn one up and braze or weld it on. Not necessary and out if sight to go to the trouble of replicating it. The seal issue might be overcome with some sort of sealant used during installation....

Your certainly taking on a few engineering challenges with this car. I was trying to fathom out the exhaust pipes set in concrete and what a great idea to be able to press a flat on one side without crushing the pipe. I would have just used a bit of heat and a hammer.

This one is interesting.

https://www.youtube.com/watch?v=Tw7BQXRSh6k

I have never used a NVRAM but you might have to tell the forum the ECU info your working with.

Mute point so why ask? It all depends on what the most use of the car is. Drag or circuit racing get rid of it. Road use keep it. If you get pulled over it's a defect but that dosn't concern many but if so block it off and take the risk. I don't see much change with the tune except maybe in the crui...

Yes it reduces pumping losses improving fuel economy and cools down the combustion process helping the exhaust valves to survive. You need to consider it works mainly when cruising so I think deleting it has little gain. On the other hand yes they do problems with things like carbon keeping them ope...

Thats what I'm starting to think. As to where the switch is I have no idea. I looked around the filter area where to previous model was but nothing so they have moved it just to complicate things. I have downloaded a workshop manual from Mazda and briefly had a look but like the owners handbook it's...