-E4340 vacuum melt chrome moly forging – CNC machined
-Heat-treated to Rockwell C36; full coverage shotpeened; end-to-end balanced in sets.
-Pauter 220k psi tensile strength MSP220 steel, J-formed, rolled thread racing rod bolts (standard.)
-Aluminum-bronze wrist pin bushings (standard.) EDM pressure-fed oiling to pin (available at extra cost.)
-Custom pin diameters and center-to-center rod lengths can be ordered at no additional cost. High-performance bearings, tool steel wrist pins and forged aluminum pistons can be ordered specifically coordinated to your rod order (please inquire.)
Years of hands-on experience, working with rods of all shapes and materials, of all types of racing and racing-related abuse, with design failures (and successes), has resulted in a fairly comprehensive file on just what works - and what doesn't - on the subject of high performance connecting rods. From this body of knowledge we have selected and incorporated the elements into what it is we think a great rod should be. Right off, our rod looks different, that's obvious, but for some not so obvious and very good reasons.
For starters, the simple beam design completely eliminates thin and non-uniform cross sections over the total length of the beam. This feature greatly improves resistance to crack-induced metal fatigue. In addition, the non-tapered profile of the beam helps to spread potentially harmful stress over a larger area, dispersing instead of concentrating these destructive loads. The design also efficiently places needed material in critical transitional areas, giving maximum support exactly where it is needed (such as directly under the wrist pin). The streamlined contour also provides subtle benefits in the form of windage reduction and breather/catch can function (so our customers tell us). The main beam rib itself continues around the wrist pin boss, perfectly integrating the beam to the pin boss, a small, but important contribution to overall structural unity. Pauter rods are indeed, different by design.
Specifications:
- Pin Diameter: .905"
- B E Bore: 2.165"
- Length: 5.135"
- B E Width: .840"
- Weight: 600 grams
Part number: SUB-230-550-1305F
Fits: Subaru WRX STi 2.0L & 2.5L
Note: Subaru WRX & STi EJ25 motors must use pistons designed for 5.135 rod length
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