Dominik Ehmke RPS13

Hello everyone,

I need your experience about the clearance of the valve guide to valve.

Now i change the old ones into new BC Racing and set the correct high as well.

The factory tolerance for intake side is 0,02-0,053mm and exhaust side 0,04-0,073mm

Now i set 0,03mm for intake and 0,04mm for exhaust side.


But at the moment iam not shure if the clearance ist right for racetrack application and around 450hp.

By the way, i build a complete new engine for racetrack use.

Can you help me with good experiance from your build,please.

thx a lot Dominik