Advice for mod engine

[3SGTE]

need advise for built stock 2008 banshee engine

 

I need top speed and high end and wheelie maker too...

 

I need the top for 91 octane fuel

 

exhaust:

reed valve:

cylinder/dome:

carb/jetting:

fire timinig:

rear/front sprocket:

 

any suggestion and opinion is welcome

Edited December 29, 2008 by 3SGTE

[Wildcardracing]

Welcome to the HQ :thumbsup:

 

As for your question, we will need more info. What type of riding is the bike used for and what kind of a budget do you plan on for the build? Also, what is your elevation?

[locogato11283]

need advise for built stock 2008 banshee engine

 

I need top speed and high end and wheelie maker too...

 

I need the top for 91 octane fuel

 

exhaust:

reed valve:

cylinder/dome:

carb/jetting:

fire timinig:

rear/front sprocket:

 

any suggestion and opinion is welcome

 

i would suggest some dune/woods porting. itll give you a good bottom end, but youll also be able to pull taller gearing if you want.

 

pipes: toomey t5

reeds: v force

head: NOSS head, but stock will also work

carbs: stock will be fine

timing: gonna have to stay stock unless you wanna run higher octane fuel

sprockets: depends on terrain, rider weight, mods, tires...

 

builder: FAST!!!

[3SGTE]

tank you

 

I work for Yamaha dealer so I have good deal for part

 

I'm weight 165lbs and use 20x10-9 tire at the back

 

 

I don't know anything in banshee...I love 2 stroke and have old quadracer 250r too!!!

 

I want smoke the yfz450 and raptor 700r of my customer

 

just need to run 91 octane pump gas... race fuel is too costly for my need

 

I don't want spend useless cash...I wanna make right think the first time

 

my easy choice is...

 

exhaust: FMF

reed valve: vforce3

cylinder head porting : the best for my dome and pipe???

dome: the smallest for pump gas???

carb: the biggest for carb boots???

jetting : ???

fire timinig: forget it's if I need race fuel

front sprocket: stock

rear sprocket: -1

Edited December 29, 2008 by 3SGTE

[jbooker82]

If you want to hand it to them then go this route.

 

4mill Stroker Crank

Dune Port

CPI Small Bore Pipes

PWK 33's with a Boss Intake

V Force 3's with Cascades Stuffers

Custome Noss Machine Domes for Pump Fuel and the 4 mill stroker crank

+4 Timing

[Wildcardracing]

You can get away with @ +4 on the timing and around 150psi of static compression on 91 octane. I would need to know your elevation to make a recommendation on the dome size to get you there. As far as your pipes ect, what type of riding do you use it for? ie: fast trails, technical trails, dunes, open fields ect. FMF fatties are a decent midrange pipe, the gnarly's are a good low end pipe. If you're wanting more power in the top end you could consider some t-5's or cpi's. Your portwork is all going to depend on the pipe and type of riding.

[3SGTE]

my elavation is between 150ft and 1200ft ...

 

I ride in fast wood trail

[Wildcardracing]

21cc domes should do nicely. I would probably recommend and aggressive trail type port matched to some Pro-Circuits or FMF Fatties. +4 timing and ported stock reed cages with boyesen dual stage reeds. A pro flo filter setup with a k&n if it gets wet where you ride or dual pods if it's dry. If you want even more power then you could step up to a 4mm stroker and some 22cc stroker domes with all the same mods mentioned earlier. A couple of good insurance type mods would be a billet water pump impellor and a pancake bearing clutch adjuster. And if you're not opposed to splitting the cases I would highly recommend having your crankshaft trued and welded.