Yamaha Discussions about Yamaha ATVs.

What Horsepower Are You Guys Making With Your Banshees??

Old May 5, 2001 | 11:50 PM
  #1  
yamaracer5's Avatar
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Hey everybody,
I am just wondering what horsepower all of you are getting from your tricked out banshees.So let's hear it everyone and be HONEST.
 
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Old May 6, 2001 | 12:09 AM
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rapidrog's Avatar
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I have no idea.

My mods are:

FMF Fatty pipes/pc II silencers
K&N filter
Pro-FLow adaptor
DynoJet Jet Kit
Wiseco pro lite pistons +.020"
Ported cylinders
Cool-Head with 19cc domes

I estimate that I am near 50ish horsepower.

Sometime, I plan on taking it to a local shop and have dyno'd to find out.

Regards,

Rog
 
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Old May 6, 2001 | 05:15 PM
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sik_banshee's Avatar
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See www.mobiledyno.com
 
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Old May 6, 2001 | 05:47 PM
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check www.mobiledyno.com.
I have Graydon-Crapline pipes, a k&N airbox lid on, and not much compression...that'd mean I'm somewhere in the 35 hp...maybe less. I seriously doubt the Graydon pipes gave me any added power (it looks like I lost top end power!).
Stock, a banshee puts out 34hp (that's what mobiledyno says), and with simple mods, it reaches almost 50hp. Add a 400cc big bore, and you aren't far from 60hp.
 
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Old May 6, 2001 | 10:33 PM
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Shananigan's Avatar
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I was at 48 rear wheel with ADA Head 20cc domes, FMF Fattys, stock carbs, V-Force reeds and a rec. port job. Just added PWK 35's, 18cc domes (race gas) CPI inframe pipes, and alot more porting and exhaust porting. Have not had the bike back on the dyno yet, but I would guess between 65-70
 
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Old May 7, 2001 | 01:44 AM
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i have never had mine dynoed but i estimate mine to be between 50 and 55 hp from what i have read in the dirt wheels on diff modifications
 
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Old May 8, 2001 | 03:41 PM
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Not Enough!!!

Banshee with basic mods,

RoostKing...
 
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