CAMSHAFT, FAST ROAD 83, LARGE JOURNAL, NEW

  • SKU: TT10505N

Triumph 4-cylinder 1500cc

Fast Road 83 - This is for the city user who requires a very good all round profile for SU/Webers. Will idle at 900 rpm and can produce 105+ bhp at 5250 rpm with a free flow exhaust, K&N air filter, modified cylinder head and Weber/Dellorto carburettor on a very wide power band and with a good idle. Well recommended for average use to produce a quick tractable ‘sports car'. The Weber/Dellorto carburettors will improve this at the top end. See below for more info.

Meaning of Journal Diameter

  • Small for engines with replaceable bearing fitted to cylinder block, originally fitted to engines, 1147-1286cc pre 1969 with twin carbs.
  • Large for all other models, where cam runs in cylinder block. Bearings can always be removed for this range for the cam to be used on early models.

Details

  • Profile: Fast Road 83
  • Cam Size: Large Bearing
  • Inlet Timing: 37-63
  • Exhaust Timing: 74-28
  • Camshaft Duration: 280°
  • Lift: 0.288"
  • Install Figure: 103°
  • Inlet Valve Clearance: 0.022”
  • Exhaust Valve Clearance: 0.024”
  • Power Band: 2500-5500

Note: Use TT1307 double valve springs, without any lower collars or spacers. Installed height - 33-34mm

CHF 346.10
excl. 8,1% VAT , plus shipping costs

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