Re: 4stroking with right timing and jetting (video
- Author: steve (---.clrkwv.east.verizon.net)
- Verified User: zaqewq
- Date Posted: 05-17-08 12:45
sounds like backpresure to me. you said you are using a junk i assume factory pipe on a bike with super high rpms? try a straitpipe it sounds to me like its running to good for that pipe in the vidio. with mass air intake and rpms that muffler could not be able to purge it fast enuff and that will sound like steady 4 stroking through the high rpm bands. imo
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