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How much horse-power does a stock Banshee have?

This is a discussion on How much horse-power does a stock Banshee have? within the Yamaha YFZ350 Banshee (1987-Present) forums, part of the Performance /Technical category; Same as title....


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Old 05-19-2003, 04:45 PM   #1
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Default How much horse-power does a stock Banshee have?

Same as title.
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Old 05-19-2003, 05:06 PM   #2
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I have no idea. Good question though, I don't think this has ever been asked in here before. :D
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Old 05-19-2003, 05:42 PM   #3
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Wow, s96, i don't think Ive seen it either. You know someone needs to find it out and then post it on these forums.






35 is what I've heard, but people come up with all kinds of numbers.
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Old 05-19-2003, 07:18 PM   #4
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Quote: Originally Posted by dawarriorman
Wow, s96, i don't think Ive seen it either. You know someone needs to find it out and then post it on these forums.






35 is what I've heard, but people come up with all kinds of numbers.
I heard 35 too but i have no idea how reliable that number is
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Old 05-19-2003, 08:44 PM   #5
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I have heard 35 but I wasn't too sure.
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Old 05-19-2003, 09:39 PM   #6
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I think that is right.. around 35. It is enough to get you killed anyway...

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Old 05-20-2003, 12:05 AM   #7
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I know its between 34-36 for sure!
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Old 05-20-2003, 12:13 AM   #8
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I think its 35.4567 to be exact.
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Old 05-20-2003, 07:26 AM   #9
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I heard from my sister in law that her cousins friend who has a babysiter who sat next to a chinese guy on a train once and overheard him say its somewere in the mid 30s
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Old 05-20-2003, 03:45 PM   #10
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My husband had his banshee on the dyno a couple weeks ago at Sandtech Racing and it made 45.2 hp but it has fmf pipes and silencers, v-force reeds, and a trinity 35mm 2-1 carb if I remember right the guy that had it on the dyno said that a bone stock banshee made only like 29-30 hp he could be wrong but all they do is banshee's and they are in all the magazines and they have a dyno so I'm sure they have had stock banshee's on the dyno before.
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Old 05-20-2003, 03:51 PM   #11
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Dynos will vary, but from my personal experiences, I've seen stock shees dyno anywhere from 33-36hp.
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Old 05-20-2003, 05:39 PM   #12
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i have heard 40 for a banshee, and 38 for a raptor
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Old 02-24-2012, 09:56 PM   #13
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i work at a yamaha dealership and i have heard 34.5 hp stock. our shop built puts out around 50.
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Old 02-24-2012, 09:57 PM   #14
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Edit: i forgot to mention that my 700xx (full ehs racing build) put out 57 hp. :) this , on our dyno.
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Old 02-28-2012, 03:27 PM   #15
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Quote: Originally Posted by xx700xx View Post
Edit: i forgot to mention that my 700xx (full ehs racing build) put out 57 hp. :) this , on our dyno.
Only 57hp for a full race build? It's got some issues then. =P
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Old 02-29-2012, 07:09 AM   #16
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leering

That dont sound right, my 700 puts out 140 h.p.
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Old 02-29-2012, 12:26 PM   #17
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I thought I remember hearing 35ish for some reason.

I think my 97 with Toomy T-6's,.20 milled head,bored,.40 over with wiseco pistons,boost bottle,carbon tech reeds,pro design intake with a foam filter no lid, I wanna say it was around 45 hp??? I just remember a few of my buddies saying they could see my tires flex when it came on the pipe.

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Old 02-29-2012, 04:51 PM   #18
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Quote: Originally Posted by HondaEast View Post
I thought I remember hearing 35ish for some reason.

I think my 97 with Toomy T-6's,.20 milled head,bored,.40 over with wiseco pistons,boost bottle,carbon tech reeds,pro design intake with a foam filter no lid, I wanna say it was around 45 hp??? I just remember a few of my buddies saying they could see my tires flex when it came on the pipe.

Yep, that is about right for a banshee with bolt-on's without cyl porting.
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Old 03-01-2012, 11:53 AM   #19
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Wow! My Built Blaster puts out the same power as a stock Banshee but is about 50 pounds lighter. I'm around 34-35 with my Blaster.
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Old 03-04-2012, 08:55 AM   #20
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Everyone sounds right with the 35hp rating, the RZ engine on the other hand in stock form has around 65hp.
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