his has gone on for far too long. The patent application must be public domain by now.

Please let us know what the number is so that we can at least get an idea of what the novel ideas are.

It is public knowledge

Last time I spoke to him which was well over a year ago, maybe more, the issue was that his design incorporated an air pressure sensor that had been rejected due to its manufacturer/marque. I think it was something to do with Volvo.

I know he is active on the Facebook groups but I think the timescale for any KV6 engine mods, in particular a complete overhaul of the VIS system, is long passed its viability window.
Given the cost of the system too, being similar to 75 and ZT eBay listings, I doubt there would be many takers.

I can understand all of the issues, but I am intrigued by the potential. If a patent has been made all that time ago it must be published by now. Please let us know the number so that we can look it up.