Diamond Introduces New SBC Sportsman Racing Pistons|

Tech

Diamond Introduces New SBC Sportsman Racing Pistons

By |January 17, 2013

Diamond Pistons has introduced center-of-gravity balancing to Sportsman racing pistons, broken new ground in weight reduction and announced a new 380-gram series for small-block Chevrolet drag racing engines.

In improver to useful weight reductions, achieved mostly through the formation of clever ultra-lite cantankerous sections, Diamond's new center-of-gravity balancing programme ensures the piston travels squarely in its bore. Further, information technology exploits the latest 0.7mm piston rings to their fullest potential.

Though the pistons can exist difficult anodized (within and out) with a molybdenum blanket added to their skirts, they are available uncoated or with a moly coating applied straight to the bare aluminum skirts.

Twin oiling holes are installed in the upper regions of the pin bores. The holes are connected by oiling channels and the pressurized oil supply is delivered from the oil control ring grooves. Equally the oil control ring wipes up and down the cylinder wall it diverts the accumulated oil not only to the crankcase simply as well force-feeds the pin oilers via drain-back holes positioned behind the oil control rings.

Curiously the force per unit area rest groove, placed betwixt the top and second band lands, is larger than customary and not the conventional V-shape but instead resembles the profile of a human being nose. Pressure level balance grooves or accumulator grooves are created to provide a reservoir to collect residuum gases that penetrate across the top ring during the combustion stroke. The chief purpose of the groove is to salvage pressure level between the rings, eliminate top ring palpitate, and maintain ring seal.

To withstand racing pressures the pistons are provided with Trend'due south latest TP1 tool steel piston pins. Originally tested in NHRA Top Fuel engines, the TP1 has the hardness of M2 tool steel and the toughness of the best maraging steels. Of item interest these smooth, shiny finished pins are perfectly circular.

Lastly, weighing simply 380 grams Diamond believes they have invested these new domed pistons with both lightness and force.

For more information contact:
Diamond Pistons
23003 Diamond Drive,
Clinton Township, MI 48033
Telephone (877) 552-2112
E-mail Mike Panetta at MPanetta@DiamondRacing.internet
www.DiamondRacing.net