cary724 Posted April 8, 2014 Report Share Posted April 8, 2014 timing plate (+5) and cool head 180lbs for compression. Others that don't have much to do with HP , billet impeller and gear, shift star, 200 watt DC conversion, pancake bearing. I've had the bike since new in 2000. it has sat in garage for last 6 years. Never wanted to sell it, I knew the hobby would come back. This time around I almost did sell it to buy a 450 4 stroke, but luckily i rode a friends first and it didn't do it for me. It didn't give the smile per mile the Banshee does :-) So I've been lurking around here getting caught up and slowly getting the bike back in riding shape. This was the first weekend out on it, had a blast and bike was great. Quote Link to comment Share on other sites More sharing options...
cary724 Posted April 8, 2014 Report Share Posted April 8, 2014 yes, race gas. No, 64 does that sound low to you? Quote Link to comment Share on other sites More sharing options...
cary724 Posted April 8, 2014 Report Share Posted April 8, 2014 Also, its his MX port Quote Link to comment Share on other sites More sharing options...
Strm Trpr Posted April 8, 2014 Report Share Posted April 8, 2014 On HJR's site he states 4mil stk cyl up to 85hp. 4th line down. http://www.herrjugsracing.com/Yamaha_Banshee.html Quote Link to comment Share on other sites More sharing options...
Strm Trpr Posted April 8, 2014 Report Share Posted April 8, 2014 @ cary724, what pipes, carbs, reeds and gearing are you running? Quote Link to comment Share on other sites More sharing options...
Strm Trpr Posted April 8, 2014 Report Share Posted April 8, 2014 people.. this is a woods port.. not some dune / drag port where the timings are way up with a narrow ass peaky power range. If you're referring to me because I posted the link to HJR's site, then yes I know that. But don't you think a 4mil stk cyk MX port should easily be north of 70whp, especially on race gas. Here's a stk cyl, stk strk, HJR Dune Port, pump gas, T5's and stk carbs. Third pic from the left, top row. http://www.herrjugsracing.com/photo_album.html Also, if you compare the two dyno plots, the stk strk stk cyl HJR Dune Port makes 50whp before 7k rom. Quote Link to comment Share on other sites More sharing options...
Strm Trpr Posted April 8, 2014 Report Share Posted April 8, 2014 that chart looks so fake, the straight torque line from 7k to like 8750 is just weird. Maybe it is, i don't know. It does coincide with the straight hp line from the same rpm though. Whatever the case may be. A 4mil stk cyl MX Port should make over 70whp on race gas, period... Quote Link to comment Share on other sites More sharing options...
cary724 Posted April 8, 2014 Report Share Posted April 8, 2014 stock carbs, Vforce 4, 15-41 Quote Link to comment Share on other sites More sharing options...
Strm Trpr Posted April 8, 2014 Report Share Posted April 8, 2014 I agree 100% with everything you said. Here's a Redline 4mil stk cyl, stk carbs, VF3's, CPI pipes on pump gas. It's down 10whp at 7k rpm, but makes 76whp at 10k rpms. Personally I prefer cary724's motor with more power down low. I wonder if there's any way to stretch his powerband out to the right another 500rpm or so? http://bansheehq.com/forums/index.php?showtopic=148961&hl=%2Bredline And her's a Redline 4mil Dune Port on race gas. http://bansheehq.com/forums/index.php?showtopic=169881&hl=%2Bredline Quote Link to comment Share on other sites More sharing options...
Strm Trpr Posted April 8, 2014 Report Share Posted April 8, 2014 stock carbs, Vforce 4, 15-41 what pipes? Quote Link to comment Share on other sites More sharing options...
cary724 Posted April 8, 2014 Report Share Posted April 8, 2014 When i dropped it of for tuning and dyno, i asked what he thought it would make. I was told mid 60's. (This wasn't with HJR, but a local shop that is known for good work and tuning) Regardless, I'm happy with the performance. Bike pulls hard and pulls for a nice amount of time, also has a good low-mid letting me stay in 2nd and 3rd in the trails not having to constantly be shifting. Of course more HP would be nice for bragging rights, but overall I'm good with it. Quote Link to comment Share on other sites More sharing options...
cary724 Posted April 8, 2014 Report Share Posted April 8, 2014 T5's Quote Link to comment Share on other sites More sharing options...
cary724 Posted April 8, 2014 Report Share Posted April 8, 2014 how much HP increase will you see from a Dune port to a MX port? Quote Link to comment Share on other sites More sharing options...
Strm Trpr Posted April 8, 2014 Report Share Posted April 8, 2014 When i dropped it of for tuning and dyno, i asked what he thought it would make. I was told mid 60's. (This wasn't with HJR, but a local shop that is known for good work and tuning) Regardless, I'm happy with the performance. Bike pulls hard and pulls for a nice amount of time, also has a good low-mid letting me stay in 2nd and 3rd in the trails not having to constantly be shifting. Of course more HP would be nice for bragging rights, but overall I'm good with it. That's all that matters buddy! I'd be happy with that motor too. In fact I have all of the supporting mods already, just need domes, 4mil crank and an aggressive MX Port for my 2002 play bike. Quote Link to comment Share on other sites More sharing options...
Strm Trpr Posted April 8, 2014 Report Share Posted April 8, 2014 how much HP increase will you see from a Dune port to a MX port? Redline 4mil stk cyl Dune port on race gas. Looks like ~18whp but shift your powerband to the right 1k rpm. http://bansheehq.com/forums/index.php?showtopic=169881&hl=%2Bredline Quote Link to comment Share on other sites More sharing options...
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