Boostline Connecting Rods Won鈥檛 Bend Under Big Boost

Boostline Connecting Rods Won鈥檛 Bend Under Big Boost

Perfectly good connecting rods will bend under the incredible cylinder pressure loads of turbocharged and supercharged engines running gobs of boost or engines running large hits of nitrous oxide. There is nothing wrong with those rods鈥攖hey just are not made for these types of engines.

Wiseco鈥檚 Boostline Connecting Rods are designed to survive under big boost. The challenge for Wiseco engineers was how to make a rod stronger while keeping its mass as low as possible. Their solution was a hybrid design that combines the strength of an I-beam rod with the light weight of an H-beam rod.聽 One important area was the big end area of the rod, which sees high loads at high RPM. Boostline rods have triangulated pockets where the big end meets the beam area. This arrangement drastically increases the rod鈥檚 resistance to bending by 60 percent compared to a typical H-beam design, making it ideal for handling the combination of forced induction and high cylinder pressures.

Boostline rods are individually measured using Wiseco鈥檚 coordinate measuring machine (CMM) that logs a literal blueprint of each individual rod. After a production run of rods is measured, they are individually screened and combined into custom-matched sets based on聽overall length, big- and small-end diameter, rotating and reciprocating mass, and total mass. For a typical set of Boostline 6.125 inch rods for an LS engine, center-to-center length variation is less than 0.0002 inch while total mass variation is just one gram.

Other features include:

  • Forged from 4340 steel
  • Heat-treated, shot-peened, and fitted with ARP-2000 cap screws before final finish machining
  • High-quality Ampco bushing material used in the small end
  • Pin clearance between .0009″ and .0011″ to allow an engine builder to set a custom wrist pin spec for additional clearance
  • Each rod is vacuum-wrapped for corrosion protection

Boostline connecting rods are rated up to 1,000 horsepower for four-cylinder engines, 1,500 horsepower for six-cylinder engines, and 2,000 horsepower for V8 engines. You can get plenty of tech information on the Boostline website.

Available Applications

  • GM LS
  • Small and big block Chevy
  • Ford 4.6L/5.0L modular
  • Small block Ford
  • Ford 2.3L, 3.5L/3.7L Ecoboost
  • Mopar Gen III Hemi
  • Mopar SRT4
  • BMW N54B30 and S54B32
  • Honda B18A/C, K20A/K20C, K24
  • Mitsubishi 4G63T and Evo X 4B11T
  • Nissan RB26, TB48DE, VQ35DE, VR38DETT, SR20DET
  • Subaru FA20/FA20DIT, EJ20/EJ25 Turbo
  • Toyota 2JZ
  • VW 1.8T/2.0T

CHECK OUT BOOSTLINE CONNECTING RODS AT SUMMIT RACING

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