*BUMP*
Update- Got a SCSW pipe the other day in a deal for a used bike. Bought the whole rig for a steal and swiped the SCSW pipe off the bike and installed it on my Schwinn. All I can say is WOW. There is a noticeable difference between the performance from my SBP expansion chamber and the SCSW pipe. (Mind you, the SBP pipe ALSO improves engine response over stock by a good margin.) The SCSW pipe however, hits harder, and smoother throughout the powerband. I'm currently running a mildly milled stock head, and no head gasket, and the bike just doesn't quit. I tried putting my head gasket back in the other day and ran the bike to and from work and to the city, and the engine response was noticeably hampered. When I run the SBP pipe and a head gasket, I can only get on top of about 5th gear out of the 7 speed freewheel I'm running out back(35-37mph). SBP pipe and no HG- it will let me push into 6th gear on flats and I'll see about 40mph under most normal conditions. With the SCSW pipe and no HG, the bike willingly winds out in 6th and keeps on pushing when I click it up to 7th gear. With the 12t final gear in back and the stock jackshaft drive gear (10t) up front, the bike is pushing 47mph or so as a final top speed. The power coming from this pipe is really really smooth and undeniable. I'm considering swapping back out to the 11t final gear that I got with my shift kit which I have not run very much since I got the bike bc I was losing a little peroformance on hills. I believe though that with this new pipe and the current power being developed by my motor that the bigger gearing will work just fine, get me up and down the hills OK, and put me back pushing 50mph fully winded out.
I need to get a Dellorto type carb on this thing and see what I can wring out of this bike with that thing feeding the pipe better airflow. I'm still running the stock carb and jet and despite that my setup is genuinely ripping.
Thanks SCSW for making this excellent product. For those of you who can't throw down for the SCSW pipe right now, the SBP pipe is about half the price and probably delivers about 80-85% of the performance gains you get from the SCSW, so certainly worth considering as well.
Godspeed, Motonauts..