You are welcome, I did testing on both set of mufflers on a 103 with 54 cams.. It had true dual head pipes and I ran both set back to back after I had tuned the bike. It had non mellow as my t est pipes are mellows. Test mufflers have come in handy.
Below is another 113 that we did. I was tuning with the mufflers he brought that had a 2.0 core It was giving me fits. I spent a bunch of time checking things as I had never seen a bike do this. It would start the pull and feel like it was breaking up. I checked all kinds of things it had a killer clutch in I banged in the heaviest springs, swapped plugs and wires .. In the end the muffler was the issue.. It had a 2.0 core and the core was 20+ inches long however it was only louvered for maybe 10 inches at the end.. I swapped out for my test crushers.. and what you see is a back to back.. I would not have believed that a muffler would do that.. I have seen some odd test's but this one was bugger.
Now I will add that the muffler worked very well on the bike as both a 103 and 107 with 555 and 777 woods cams. The final runs are with a woods 777 cam. But once we took the engine to 113 CI the mufflers where not up to the task.. For the record they where not fulsac mufflers. Steve and I did have a long talk about it he saw the graphs and I sent him pictures of the baffle as well.. He did comment that the style of baffle that I had in this muffler was not the best based on his own testing.
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Topic: Budget 113 builds (Read 11153 times)