The TODA high compression forged piston kit for the F20C comes complete with forged pistons, piston rings, C-clips, and heavy duty wrist pins. Defric coating (Lubricous film) is applied to the piston skirt, for a reduction in friction and loads as well as improved durability.

 

The basic form of the piston is an elliptical barrel. This forms the basis from which each part is subjected to high loads and measured for thermal expansion to accuracy of 1/1000(mm). The top edge of the piston uses a castellation design to reduce sticking, improve lubrication and sealing. The design also acts as a scuff-band to reduce run in time.

 

TODA piston also feature improved oil drainage with redesigned oil channels. Improved oil drainage reduces piston weight during engine operations which is ideal for high rpm use

Displacement	2157cc	2182cc
Crown Volume *1	4.35cc/10.3cc	4.35cc/10.4cc
Projection Height	+1.0mm (from the deck of the block)	+1.0mm(from the deck of the block)
Reference C/R *2	Standard head GK t=0.6mmξ≈12.11:1	Standard head GK t=0.6mmξ≈12.25:1
Based on standard piston pin diameter. *1:Crown volume is measured "from the piston shoulder"/"from the deck of the block". *2:The compression ratio given above are only to be taken as a guide, measurements are required.

Displacement	2157cc	2182cc
Crown Volume *1	4.35cc/10.3cc	4.35cc/10.4cc
Projection Height	+1.0mm (from the deck of the block)	+1.0mm (from the deck of the block)
Reference C/R *2	Standard head GK t=0.6mmξ≈12.11:1	Standard head GK t=0.6mmξ≈12.25:1
Based on standard piston pin diameter. *1:Crown volume is measured "from the piston shoulder"/"from the deck of the block". *2:The compression ratio given above are only to be taken as a guide, measurements are required.