Yaxy Posted November 9, 2003 Report Share Posted November 9, 2003 I found this on the web earlier in the year. Sometimes it works and sometimes it doesn't. I am not sure how valid the information is but it appears to be a good tool for judging RPM vs Horsepower and what pipe works at what. Let me know how valid and useful this infomraoitn is? From the type of riding I do PC seems to be the way to go (Tight trials, seasonal roads, dunes) Chris www.angelfire.com/extreme2/yambanshee/techtips/pipes/pipeinfo.html This appeared to work fine Quote Link to comment Share on other sites More sharing options...
Yaxy Posted November 9, 2003 Author Report Share Posted November 9, 2003 See above. I corrected the URL Chris Quote Link to comment Share on other sites More sharing options...
Banchetta Posted November 9, 2003 Report Share Posted November 9, 2003 There is one thing that those dynoes don't tell you and thats the torque.....A trail rider would rather have more torque than hp. A desert rider would rather have more hp than torque.....After looking at those dynoes, I wouldn't bother choosing from that.....Those charts are all very close, but I can tell you that those pipes don't act the same at all....Notice a HUGE difference in pipes. Some pull harder down at the lower rpms and others pull harder on top. Thats where the torque comes to play.... Quote Link to comment Share on other sites More sharing options...
PassionRE Posted November 9, 2003 Report Share Posted November 9, 2003 Another thing you must consider is that most of these pipes are developed with basicly stock engines. Different porting arrangements may yield more peak rpm with pipes that normally are not considered great top end pipes. In contrast I have also found that different porting arrangments yield more low-end power with pipes that are not considered great low-end pipes over pipes that are...go figure..It really is rocket science...Jim Quote Link to comment Share on other sites More sharing options...
Banchetta Posted November 9, 2003 Report Share Posted November 9, 2003 Another thing you must consider is that most of these pipes are developed with basicly stock engines. Different porting arrangements may yield more peak rpm with pipes that normally are not considered great top end pipes. In contrast I have also found that different porting arrangments yield more low-end power with pipes that are not considered great low-end pipes over pipes that are...go figure..It really is rocket science...Jim Have you done any porting w/ the PT mids?? If so, then can you get even more low end as well as top?? Quote Link to comment Share on other sites More sharing options...
Yaxy Posted November 9, 2003 Author Report Share Posted November 9, 2003 It is confusing to understand what is best. Ideally we all want to buy the best set of pipes for our mods and riding. I currently have a 89 banshee that I have had since 90. I have a mx port, FMF Powercore pipes and silencers from 1990, a cool head, V-Force and 28 flat sides. YOu can chug the bike all day in the woods. I actaully ride it like a Raptor a gear high go into a corner and nail it. Even before the powerband the lowend is good and I have no problem keeping up with raptors in the woods. Between the good lowend and light swith powerband it may seem to have more lowend than it actually does just because of the wheel spin that is always there. I am buying an new banshee and will run the exact same set up. The only choice is between pipes. There are many more to choose from now a days. Ideally i want a pipe that goes from 0-70 and 20 to 70 quick. In my current set up the faster I shif the faster I get there which I like, you may have to rev out a little more in 5th but it depends on traction. I am more into low to mid then a pipe that works best and continues to climb as you hold it wide open more. My current excelerate quick and fizzles out a bit and revs nice but does not have continous pull, but it has teremndoues torque in 6th gear crusin on the fire roads that we ride. I don't have to shift very often. So just shopping and I wish I could have 15 sets of pipes to test, that would make this easy. Chris Quote Link to comment Share on other sites More sharing options...
PassionRE Posted November 9, 2003 Report Share Posted November 9, 2003 Banchetta, actually I just shipped a motor for that particular application and goal in mind! One of the board members will be giving us a progress report in the next couple of weeks on how it turned out. Although, I can already tell you that the top end increases with that particular engine will be enhanced bigtime with bigger carbs than he plans on using...but I think he might be leaning torwards a set....we'll see ...Jim Quote Link to comment Share on other sites More sharing options...
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