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Re: Scooterswapshop DYNO thread Yasuni C16 pipe~
Posted: Tue Dec 23, 2014 11:35 pm
by Wheelman-111
Greetings:
Is there a reason the stock belt can't be used on the dyno? A direct comparison run between a CVT and a cog belt driven pull on the same engine would at last quantify just how much power is lost to belt slip. I would be surprised if the difference were less than 10%.
Re: Scooterswapshop DYNO thread Yasuni C16 pipe~
Posted: Wed Dec 24, 2014 12:37 am
by deuce217
Can the variator and clutch just be altered to keep a consistent ratio. Maybe the rear clutch could be tac welded, and the variator could be shimmed into a fixed position?
Re: Scooterswapshop DYNO thread Yasuni C16 pipe~
Posted: Wed Dec 24, 2014 5:27 pm
by Wheelman-111
Greetings:
Blocking down the variator so the front pulley is fully closed would keep the ratio from changing, and tell us what the belt is costing in terms of performance with the spring pressing full-tight on the belt...
Re: Scooterswapshop DYNO thread Yasuni C16 pipe~
Posted: Wed Dec 24, 2014 8:16 pm
by LMH
Slip or snap, it wouldn't be happy.
Re: Scooterswapshop DYNO thread Yasuni C16 pipe~
Posted: Thu Dec 25, 2014 4:02 am
by deuce217
That makes sense. Ok Brandon, so you ship the pulleys you want to use and Ill do the fab work.
Re: Scooterswapshop DYNO thread Yasuni C16 pipe~
Posted: Fri Dec 26, 2014 5:22 pm
by johnny248
That is such a good looking pipe. Even if it was just as good as something else, I'd want it simply because it looks so darn good. Can't wait for these.
Re: Scooterswapshop DYNO thread Yasuni C16 pipe~
Posted: Sun Dec 28, 2014 2:27 pm
by curtis966
Does the yasuni come with any different silencers? I would really like kevlar
Re: Scooterswapshop DYNO thread Yasuni C16 pipe~
Posted: Sun Dec 28, 2014 2:46 pm
by DirtyE
So the first batch of three is the black can right?
Re: Scooterswapshop DYNO thread Yasuni C16 pipe~
Posted: Sun Dec 28, 2014 3:05 pm
by curtis966
Awesome!! I'm very intrested but I think I'm gonna wait till after the first batch I wanna hear a little more about the performance first. Where did your chart go btw?
Re: Scooterswapshop DYNO thread Yasuni C16 pipe~
Posted: Sun Dec 28, 2014 3:07 pm
by curtis966
Nevermind I found it lol I guess I thought I read that here in this thread.
Re: Scooterswapshop DYNO thread Yasuni C16 pipe~
Posted: Wed Dec 31, 2014 3:28 pm
by Revolutionary
I did some measuring and think I have a good idea how to make this work and still use the clutch. I have some sprockets and belt on the way from Gates to see if I can mock this up. I need an extra complete clutch unit if someone has one to donate for research...
graphite9 wrote:spoke with rich @HGT today. This is what he had designed. I need to do the same for the dio. Any talented machinists want to take this project on? Only issue I see is incorporating the kickstart gear..
Re: Scooterswapshop DYNO thread Yasuni C16 pipe~
Posted: Fri Jan 02, 2015 10:13 pm
by johnny248
Do these pipes make so much power because of the expansion pipe design?
Re: Scooterswapshop DYNO thread Yasuni C16 pipe~
Posted: Sat Jan 03, 2015 8:25 am
by DirtyE
you can see here:
http://www.scooterinvasion.net/forum/vi ... .php?t=253 where the c16 falls into the realm of things, just in general.
Re: Scooterswapshop DYNO thread Yasuni C16 pipe~
Posted: Wed Jan 07, 2015 3:26 pm
by johnny248
graphite9 wrote:The expansion chamber, pipe diameter, and lengths all contribute to the amount of power, for that specific cylinder/CC. Not all pipes are created equal, as can be seen on the first post. This yasuni pipe beat out all the other pipes in the scoot-tuning dyno article. Thats why I chose it. You could take an ebay pipe, and put it up against this one, or a windjammer, and the difference would be night and day. Pipes are a HUGE deal on two strokes.
So with the Corsa build that I am sloooowly doing, would you recommend this over one of the other pipes you sell? I was reading some of the for sale stuff you had with all of those Scorpion and other pipes you had built.
Re: Scooterswapshop DYNO thread Yasuni C16 pipe~
Posted: Wed Jan 07, 2015 3:45 pm
by Rip_City_Spree
And it sounds great! Not to loud but loud enough
