Topic: Engle cam

[Don R]

 cb750  Engle J #BR21  cam anyone familiar with this one?  I also have access to an RC327, for the stroker motor.

[Don R]

Found it on google, someone posted a chart here. .410 lift, 310* duration, the link didn't copy.  Holy wow, this is one of the bigger ones.  Probably bigger than common sense would call for.

 My Kenny Harmon F is 385/330 and 295/290
     RC 327 is             370/368 and 325*

 These were the days when folks measured cams at different degrees of lift to make the numbers bigger though.

[754]

Lift should be lift , but total duration, is different than when measured at 50 thou. Mine has 310 duration, means that is not from 50 thou.

[Don R]

Correct. Some measured at .040 before .050 became standard. Ramp angles are another matter, my engine guy put a slightly bigger cam in our dragster but it literally ate valvetrain parts. We went smaller, gave up no ET or mph and knock on wood haven't broken anything yet. Well, anything that wasn't self inflicted. L0L!

[PeWe]

RC327 are much more than 315? The numbers do not look much more, but it will act completely different, right?
I have DP315 in and it acts really civilized with nice low idle and smooth all they way without sudden power explosion. I really like it!

[754]

Not sure but I thik a little more make a big difference. Plus two cam with same lift, one may be a higher lift at the same degrees as others.. And race cams, if its hard on valvetrain..its to be expected..to a certain point.
Now the RC clones...the same as RD *** cams.......
 I would like to see a side by side comparison..lift figure for every 4 or 5 degrees rotation.
Then we see if they are really the same ..or same lift, same duration...but ramps are done the we always do them ....that sort of thing..

[Garage_guy_chris]

I saw this the other day screwing around on the computer so here:

[Big Jay]

Engle used to grind Kawasaki cams for me. I would order the billets and when they came in, I would load the dually up and drive down to Santa Monica to that old corrugated building to drop them off. Always managed to spend some time visiting with the legendary Jack Engle.

They did a lot of cams for me back in the day.

[Don R]

 Just by looking at them, the Kenny Harmon F and RC327 appear bigger but the Engle has big numbers. I so wish I could find a living team member that knows this motor and has a picture of this bike.