Author Topic: CB550 Piper Cam H5Y  (Read 537 times)

0 Members and 1 Guest are viewing this topic.

Offline crazypj

  • I'm brill, me
  • Old Timer
  • ******
  • Posts: 4,467
  • first 100,000 miles. 1977 CB550F
CB550 Piper Cam H5Y
« on: January 16, 2012, 05:48:31 PM »
Found cam sheet supplied with Piper cam around 1978 that I fitted to my 591cc '550'
This was the 'Fast Road' cam
IO 30 deg BTDC
IC 65 deg ABBC
EO 70 deg BBDC
EC 30 deg ATDC
103.5 lobe center
 With points it topped out around 11,000rpm, with electronic ignition, 13,500
 With all the building going on I guess someone will be interested
I fake being smart pretty good
'you can take my word for it or argue until you find out I'm right'