Used Honda Motorcycles | Used Yamaha motorcycles | BSR yamaha motorcycle R6 porting performance

12 Responses to “BSR yamaha motorcycle R6 porting performance”

1. wfofz1 on November 14th, 2008 6:17 pm

   I unshroud the valves by hand & only slightly, I’ve found that the gains in flow don’t make up for the loss of compression.

2. wfofz1 on November 14th, 2008 6:17 pm

   I unshroud the intakes very lighty by hand because I’ve found that the compression loss is not worth the flow gains.
   P.S. this head did get them unshrouded as part of the valve seat cut, if you look in the nlast scene you can see the big silver circles around all of the valves. I have since changed that practice.

3. Thumper47 on November 14th, 2008 6:17 pm

   I didnt see any work done to the combustion chamber. Do you ever unshroud the valves and clean up any steps and corners?

4. wfofz1 on November 14th, 2008 6:17 pm

   what am I supposed to do with that?
   I do some stuff with FZ1’s as well…..
   let me know!

5. 909fz1 on November 14th, 2008 6:17 pm

   949…isn’t that in california heh….. sounds like you guys are local hehe i believe thats around irvine area, laguna nigel

6. fmftrx300ex on November 14th, 2008 6:17 pm

   ya id do all the work getting it out, and just mail it out, i live in Reading, PA.

7. wfofz1 on November 14th, 2008 6:17 pm

   all depends, are you doing all the work & just mailing me the head? where are you located?

8. fmftrx300ex on November 14th, 2008 6:17 pm

   nice job!!! how much would u charge for a 300ex head port?

9. wfofz1 on November 14th, 2008 6:17 pm

   each head is different, obviously, but this one I took 20 thou.

10. schoeylikesvagina on November 14th, 2008 6:17 pm

    wow how much did u deck off the head the combustion camber it had a step before ??

11. marcaztls on November 14th, 2008 6:17 pm

    Excellent stuff BSR, I’m sure people will find that really interesting to see. You do some top work and you have the numbers to back it up in the past ;o)

12. blur1ss on November 14th, 2008 6:17 pm

    hey bsr, not bad bro!

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