Came across it other day been reading up on some motor buildin books. I also just finished a NVH (noise vibration and harshness) class for subaru- learned bunch of mombo jumbo about harmonics/ mass dampers /sirometer<look it up!
Anyways down to my thoughts:
I guess ka has high rpm problems due to its essentially vibrating apart partially due to a poor balanced crank. So mass dampens vibration why not block filler. Of course this will be a street car so maybe halfway up?
I did a little research on it and i guess its pretty much just cement. Motul race NA scca what ever car put it in their corrolla race engine. It supposed to help stabilize cylinders not only making them "stronger but also keeping bores aligned creating a better seal=more power.
In reality the 80$ hard block or what ever maybe gains of: GUESSING NOT AN ENGINEER or engine builder
- 1-5 hp under certain conditions (better seal)
- 10% stronger bottom end
- based on weight of cement eh....get ya to 8k rpm
- maybe make 91.5 bore a little more boost friendly
Probly a waste what you guys think.