I am planning on buying the racing beat porting templates for a 13BT engine on an FC... I was wondering if I use those templates to port the center housing also? I heard that you might hit the water jacket if you do that... so I am not sure as to how to do it.. maybe someone that knows want to tell me?



Thanks

 

I used the racing beat templates to port my engine. I used them to port my primaries. HOWEVER, I DID NOT go too low on it. It works well with the secondary ports though.

 

I used the racing beat templates to port my engine. I used them to port my primaries. HOWEVER, I DID NOT go too low on it. It works well with the secondary ports though. [/quote]

EXACTLY!!!



Except that the secondaries go lower as from the factory than the RB templates (at least on the FC 13BT). So once you place the template on top of the secondary ports, you won't have to port the lower section of the port at all, since the template port (the bootom part) does not go as low as teh factory port.

 

The trick to the centre port with the RB templates is to follow the instructions...

You don't need to reshape the port, and thats what leads to breaking through the water jacket, you cut the template port shape onto the side housing face and contour the new outlet shape into the existing port at angles, if you go trying to push the new shape into the port, you will cut through, so you don't hold the diegrinder vertical and go to town hogging it out, but you lay it down with a 1/4 inch cylindrical carbide at about a 35-40 deg angle and shave the port outlet into the face of the side housing, then sand roll contour it into the port itself..Maxt

 

Thanks, that helps me a lot!



Anyone here have the RB templates?

 

RB templates are notoriously small.



Take it for what its worth.