Topic: Seeking 500/550 Turbo Motor Advice

[Greggo]

I'm one trip to the shop away from finishing my 750, so naturally my mind has moved on to the next project...a turbo motor for my 500/4.

My objective:

Build a reliable, low boost turbo 500/4 motor for my (almost) daily rider.

Here's what I've got:

ATP turbo kit w/original Rajay unit, and Solex carb.
CB650 cam shaft.
An oil cooler kit w/filter adapter.
I have two choices of motors, both '71 500/4's, one in my current bike running, the other needing rings.

My Questions:

Will a 650 cam work well with a low boost turbo? 

Will I need forged pistons for this type of set up?


Here's my set up.  The header needs some work, but it's not that difficult to fix.

[JLeather]

Greggo, according to Mr Turbo's old literature on these kits a bone stock motor oughta be fine for 5psi or more.  That's not even changing the timing.

Check out this old CB550 turbo install article:

http://s86.photobucket.com/albums/k113/JLeatherman_CF/Blog%20Pics/

[Greggo]

Thanks J!  That pipe cleaned up real nice. 

[JLeather]

Wow, it sure did!

[Greggo]

As far as the cam goes, I have a nice stock early 550 cam.   But, the 650 cam gives a nice boost to my current 500 in the mid range.  Would that characteristic be desirable in a turbo set up?