is: since the drive is going back to Tracy soon, should I switch to the RD-1C or stick with the B-model? 

 

As Buly mentioned, the rotation is different, but you did want a new prop anyway right?   The biggest problem is the thrust offset.  If your current mount offsets the prop to the left, then switching to a -C drive will be somewhat of a problem.  On the RV-3, it was a hand (and foot) full on takeoff when I changed to the -C drive.  Now that I shimmed the mount back to zero offset, it's a pussycat.  Of course you realize what's involved in changing the mount angle...  

 

Since you're determined to make the turbo work, you can get about as much power as you want that way, so I'm not sure I'd bother with the new drive.  I'm still hoping that I can get a significant improvement in power with the new intake, so I won't have to pursue the turbo again.  

 

Cheers,

Rusty (starting to enjoy the continuous sound of chainsaws) 

I didn't realize that shimming your mount made such a difference.  I am not interested in doing that because it would require re-mounting of the cowl.  I do plan on a 3-blade prop to improve smoothness, but cato has a 4-month wait period.  And you are right about power output, cooling is still likely to be my limitation in the foreseeable future and not the ability to make the power.  B-drive it is.

 

Waiting for traffic to go down to drive to the old hangar to get the tools to remove the gear drive.

--
Dave Leonard
Turbo Rotary RV-6 N4VY
http://members.aol.com/_ht_a/rotaryroster/index.html
http://members.aol.com/vp4skydoc/index.html