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IELASITUNED DIRT! .21 BUGGY - OS MODIFIED - HAND TUNED -HIPEX COMBO 2135 FASTLOCK HD

  • £46500


IELASITUNED DIRT! .21 BUGGY SHAFT WITH DLC COATING, CERAMIC REAR BEARING HANDTUNED

INCLUDED HIPEX 2135 FASTLOCK HD PIPE AND MANIFOLD.

Based on the latest B2103R design. The OS DIRT is hand tuned to improve fuel economy and offer a much smoother mid range curve than the standard engine whilst maintaining the already incredible top end speed of the B2103R.

OS B2103 Type R engine. This 5-port long-stroke engine offers great power at medium-high speeds. The crankcase, the crankcase cap and the carburetor feature a new design. The new DLC-coated crankshaft has two tungsten counterweights for smooth rotation and better balancing. It shares the same new features as the Type S engine except the cylinder and the cooling head which has a standard round shape. 

 

Features:

 

  • The long-stroke off-road engine put a high value on beasty power in mid-high speed range.
  • The crankcase, carburetor, cover plate, crankshaft and inner head are designed new.
  • All the parts are interchangeable to those of TYPE S’s.
  • A newly designed 5-port cylinder & piston set (5 scavenging port+ 3 exhaust port)
  • A standard round type outer head
  • A newly designed 22E carburetor for producing high power

 

Technical specifications:

 

  • displacement 3.49cc
  • bore 16.27mm
  • stroke 16.80mm
  • rpm 4000-42000 rpm
  • max output 2.64hp/34000 rpm
  • weight 354gr
  • exhaust T2100SC
  • port 5-port

 


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