I am not a fan of that concept as you will be taking hot air, probably with some exhuast gasses into the intake. This will not be good for power and it may also make the engine hard to tune as the relative mixture will change with engine temperature. Also the intake of coolair will help cool the cylinder and as a result the engine. On all my 4strokes if i touch the intake pipe when at full power they are cold, and sometimes even covered in moisture or ice (inthe winter) because thepressure drop of the intake stroke has cooledthe air even further.And as pointed out already i think it would make it harder to start. And while my os engines have the crankcase air recycled in the same way as SJN's ASP thats slightly different to having your entire fuel charge in the case.

I do look forward to seeing it run however, it should be interesting to see