Since you guys have developed the car bodies to only hold certain specification engine sizes, why don’t you remove the borexStroke ratio cap? I only ask because I would love to build some motorcycle engines to mount into small cars but they usually have a ratio that doesn’t fit the game (the Yamaha R1 is 78 x 52.2mm). Since you guys originally placed that cap into the game before you built the car body designing I was wondering if you have thought about removing it or at least giving some more space.
The cap is there for the reason of balancing. It is a decent enough range to recreate most engines ever produced for production cars and gives pretty good accuracy too. It’s a compromise that works best for us and the player.
Ah interesting. Well good to know.
I’m fine with the caps, they do give a good range of size, I think! 
Seriousness aside 
, …the lowest engine size possible is 393cc…any chance we could get the cap a FEW ticks lower so we can make 60’s and 70’s era Kei car engines (360cc)? 
You can further reduce the bore and stroke in the bottom end tab.
Oh wow, thanks mate - MIND BLOWN!
Yes, I just tried how low you can go and the Yamaha R1 is 78 x 52.2mm is not a problem, I can go down to 49.7mm at a bore of 78mm.