Comparison Engine Road Race, and Drag Bike, Differentiate Position Seher

Road race and drag bike racing motors two different concepts. Road race machines need not only strong, but it should hold. While drag bike at full speed because it only lasts 201 meters long. Problem number two resistance.
That's what makes the map korekan the engine is also different. Such as setting the position of the top edge of the piston against the cylinder block. In the road race, the edge of the piston is made a little more inside.

Lips piston should be slightly to the inside from 0.6 to 0.8 mm from the upper block. Even the most minimal really made ​​of 0.5 mm. The position is somewhat into the piston does not include head gasket. 0.3 mm head gasket itself. So, the total is more in again.
Between the piston and the head distance is contrived so far durable motors. Due to the high rotation will experience high vibration. If between the piston and the head too close to colliding, though very small. However long the piston chipped.
If the drag bike, different. The position of the piston when the top is made flush with the lip on the block. Not afraid to get stuck piston head because using that only briefly.
In addition, to avoid stuck between the piston head can be fitted with a thick gasket. For example, using a copper gasket material. Can be up to 0.5 mm thick.
Yet to be seen again. Drag motors can be made between the average peak piston with a block. Combustion chamber design is applied differently. In the combustion chamber there is grout.
Nat makes the combustion chamber as somewhat inward. Nat made ​​as wide as the diameter of the piston. Thus making the distance between the piston head so far. Essentially the same as the road race dong.
Models like this combustor nat motors found in 2-stroke racing bygone era. When it was still using the Yamaha Force-1, RG-Sport and Suzuki Satria 120 2-stroke.
If the 4-stroke motorcycle like the Honda Tiger in 2000, but in the road race, the combustion chamber as a model is not preferred. He said no good use. Models such as the combustion chamber is used motors drag Thailand.