Warren Michigan: Conclusive data shows that DLC coatings (diamond-like carbon) extend the life of piston pins by a factor of four or more-virtually eliminating pin-bore troubles. Coated pins in Pro Stock drag cars now last 32 miles instead of 8 and Cup cars, whose uncoated pins could barely complete a race without sustaining piston pin galling and subsequent loss of power, now run three and four races without concern.

Until today, the chief disadvantage of the coated pin has been its price-the average cost of which has been $52 (pin and coating). But now Trend Performance, the sole supplier of pins to Diamond Pistons, has slashed costs to around $42 each on selected popular sizes because of volume.

Not only is Trend making DLC-coated pins in five popular sizes affordable but also the piston pins are being offered in H13, a premium Sprint Cup quality tool steel. The popular sizes are as follows:

0.927in x 0.185in wall x 2.500in long
0.927in x 0.185in wall x 2.750in long
0.927in x 0.185in wall x 2.950in long
0.990in x 0.185in wall x 2.750in long
0.990in x 0.185in wall x 2.930in long

These new coated premium pins, which are marked by batch numbers, are now available for immediate delivery.

For printable catalog fact sheet click here.

For further information contact:
Trend Performance
23444 Schoenherr,
Warren, MI 48089
Telephone (586) 447-0400
E-mail: Santovski@TrendPerform.com (Saso Antovski)
For latest offerings, visit www.trendperform.com

Clinton Township, MI: For those who wish to add a turbo, or any power adder, to their new 5 liter 2011 V-8 Ford Mustang Coyote, forged pistons will be necessary to transmit the additional power.

For this purpose Diamond is announcing a new series of low-silicon 2618 forgings, comprising a variety of compression ratios from 8.5:1 to 11.5:1. They are available in half-point compression ratios (9.0:1, 9.5:1, 10.0:1 and so on) as well as in four different bore sizes.

The piston illustrated (PN 30113) has a 6cc dish and when used in conjunction with the production 57cc Coyote cylinder head, contributes a compression ratio of 9.5:1, which is ideal for running pump fuel. It will also accommodate a small turbo producing 8-10 PSI of boost.

To protect the top ring from the increased heat generated by power upgrades it is positioned .300in down from the crown. In like manner Diamond also upgraded the piston pins, selecting 4130 chrome molybdenum material.

Double spiral locks have been selected to secure the pins, and access to them is via a small half-moon slot positioned in each pin bore.

A tang shape is featured at the bottom of each skirt. They reach the end of the cylinder when the piston travels to bottom dead center. Interestingly, one skirt of each piston also features a small notch. The notches are machined to provide clearance for factory oil sprayers-a technology reminiscent of earlier Winston Cup engines devised to provide additional lubrication to the piston pins.

Lastly, Diamond offers three optional barrier coatings for these pistons: Hard anodizing, a Teflon skirt coating, and a ceramic thermal barrier crown coating. The anodizing, a Type 3 Hardcoat, is particularly viable, protecting pistons against excessive combustion heat and detonation damage. It also increases corrosion- and wear-resistance, which is particularly useful on nitrous and blown applications. Moreover it creates a surface finish approaching 70 Rockwell and it contributes an excellent adhesive surface for the Teflon skirt coating-a moly-based dry-film lubricant that reduces friction and scuffing.

For a printable catalog fact sheet click here.

For more information contact:
Diamond Pistons
23003 Diamond Drive
Clinton Township, MI 48035
Telephone (877) 552-2112
Visit www.DiamondRacing.net
Or e-mail Ron Beaubien at RBeaubien@diamondracing.net

Olive Branch, MS: Lunati is introducing three new Voodoo high performance billet camshafts for Chrysler 5.7 and 6.1 liter Hemi engines as well as a new custom grind program for the same engines.

Designated mild, intermediate, and aggressive, the three new cams are aimed at high performance Hemi engines in Street Machines, Street Rods, Muscle Cars, Drag Race Cars, 4×4 Off-Road vehicles and, if applicable, Marine.

Though all three of them work well with blown and nitrous applications, the mildest one (PN 61900) provides excellent torque at low speeds through mid-range; it is also ideal for Hemi-engine pick-up trucks pulling boat trailers or similar.

The intermediate camshaft (PN 61901) is ideally suited for higher performance engines with upgraded valve springs, aftermarket programmers, and higher stall-speed converters.

The most aggressive one (PN 61902) serves a wide range of modified applications, including those with an aftermarket converter, upgraded intake, a blower or nitrous induction.

Because these new cams subject the valve springs to increased valve lift and higher velocities, Lunati recommends upgraded Beehive valve springs (PN 74835LUN) and retainers.

Compared with the performance of the original equipment, Lunati has applied faster acceleration and deceleration ramps on their lobes. They open the valves faster, allow them to remain open for longer, and close them faster. This method increases vacuum and builds cylinder pressure with less lobe separation. By reducing the lobe separation angles they improve throttle response. Lunati likens the quick-acting valve acceleration and deceleration process to the sensation of standing by a fast-opening door and feeling the increased air velocity rushing past. The final act in the closing process is to set the valve into its seat gently. Available for immediate delivery, these new cams are priced at $ 413.60.

For printable catalog fact sheet click here.

For technical specs click here.

For further information on these cams and the new custom lobe profile program contact:
Lunati
11126 Willow Ridge Drive,
Olive Branch, MS 38654
Telephone (662) 892-1500
visit www.LunatiPower.com
Or e-mail Shane Pochon at SPochon@LunatiPower.com

Clinton Township, MI: For the popular 2300 Ford overhead-cam race engine, Diamond has created two new series of pistons: a low-drag two-ring design and a conventional three-ring design. Both are constructed to the specifications of Durham Racing and both are available exclusively from them. Durham Racing is headed by Johnny Durham whose engine-building shop, established in the early 70s, is located in Six Mile, SC.

Easily recognized by its minimal ring pack, the benefits of the two-ring piston are lighter weight, less drag, and resulting higher rpm. The undesirable effects of drag are further reduced by the adoption of a thin 1.2mm top ring and a 3.0mm oil control ring. The second ring of the three-ring piston measures a slim1.5mm. All ring sets are by Total Seal.

To provide maximum sealing between the top rings and the cylinder bores, a dozen, tiny side gas ports are featured at the bottom of the top ring lands. These allow cylinder pressure to penetrate the inner edge of the top ring, forcing it out and ensuring a tight seal on the cylinder wall.

Piston pin bosses are sized and positioned to accept the associated Ford connecting rod (5.205in long) with a piston pin diameter of .912in and a compression height of 1.590in. Alternatively a longer Chevrolet connecting rod with a piston pin diameter of .927in and a compression height of 1.090in can be used. This Chevy rod, which measures 5.700in, is often favored over the original Ford connecting rod because its longer length reduces friction on the cylinder wall. Both compression heights are devised to allow ‘decking the block’ by approximately .010in. Where flat-top pistons are mandated by sports regulating bodies, this machining process is considered imperative by racers as it allows the pistons to reach full deck height, gaining maximum compression in an engine that yearns for more.

Forged in 2618 aluminum for strength and reliability, these pistons are offered in standard bore size (3.780in) and also in a multitude of over-sizes up to .060in. To prolong block life, these over-size pistons are conveniently provided in small increments of .005in.

Finally, to complete the piston packs, chrome molybdenum 4130 piston pins (2.5in long) and spiral locks are provided. Each pin bore features double-oiling ports that are force-fed from the oil control ring groove. Where the pin bore intersects the oil control ring groove, as when using the longer rod, oil ring support rails are supplied. Hard-coat anodizing and moly-coated skirts are available if desired.

For printable catalog fact sheet click here.

For more information contact:
Durham Racing
1238 Crow Creek Road, Six Mile, SC 29682
Telephone (864) 868-3005 or (864) 508-1117
E-mail Johnny Durham at contact@durhamracing.com or JDurham97@yahoo.com

Warren, Michigan: Trend Performance unveils a new rocker shaft for 5.7L and 6.1L high-performance Hemi engines. Its advantages are strength, reduced friction, and affordability. The shafts will be sold through Livernois Motorsports of Dearborn Heights, Michigan.

Created to overcome deflection and to improve valve-train stability when used in conjunction with high-performance camshafts and valve train, Trend produces this new shaft from thick-wall 4130 chrome molybdenum, subjects it to two heat treatments-through-hardening and nitriding-and finally applies a DLC (diamond-like carbon) coating.

The nitriding process not only contributes a tough surface skin but also produces the ideal surface for the application of the DLC coating. The DLC coating provides increased wear-resistance and reduced co-efficient of friction. The 4130 chrome molybdenum material is selected not only for its strength and excellent heat-treatment properties but also can acquire a fine surface finish of .5 micro inches (Ra-roughness average).

With a diameter and length of .865in and 19.3125in respectively, the new shaft directly replaces the original (contained within the Mopar rocker assembly, Part Number 053021574AA)

Obviously, this new Trend shaft is equipped with all the correct mounting holes, requisite lubricating holes, and freeze plugs installed in the ends. Trend believes it to be the finest most affordable shaft of its kind.

For printable catalog fact sheet click here.

For further information contact:
Trend Performance
23444 Schoenherr
Warren, MI 48089
Telephone (586) 447-0400
or e-mail JWilliams@TrendPerform.com
For latest offerings, visit www.trendperform.com