justinb1989 Posted April 20, 2011 Report Posted April 20, 2011 How much hp, 1989 banshee is bored over to 65.50 with wiseco pistons,has hot rods long rod crank(+5mm)trued and welded, fmf gnarly exhaust with toomey t5 silencers,sparky cobra add ons, upp manifolds, boost bottle, cut off air box, w/ pro flow piece and k&n airfilter and pre charger, keihn 35mm carbs,barnett racing clutch, gearing is 17,41, cylinders ported for trail, piston windows ported, advanced timing plate +6 degrees, new rings, noss head and 19 cc domes, and vforce2 reeds brand new pedals, just put brand new rings and all gaskets/ seals in it and a new throttle cable. thanks for answers and help i have no idea im only 15 Quote
MacRacer1 Posted April 20, 2011 Report Posted April 20, 2011 I take that back it isn't ported maybe 55 to 60 Quote
Larry's Shee Posted April 20, 2011 Report Posted April 20, 2011 With that setup I hope you plan on running race fuel. If you run pump gas you're gonna blow it up Quote
Glenyboy Posted April 20, 2011 Report Posted April 20, 2011 I take that back it isn't ported maybe 55 to 60 He says it has a trail port Quote
MorrisJL Posted April 20, 2011 Report Posted April 20, 2011 With that setup I hope you plan on running race fuel. If you run pump gas you're gonna blow it up How and why would pump gas blow up an engine with that set-up....? How is race fuel different...? Quote
FASTOYS Posted April 20, 2011 Report Posted April 20, 2011 With +6 timing and 19cc domes you might wanna run higher octane.. Hp depends on porting but with Gnarly pipes and trail port im guessing 55-60hp range. Quote
FASTOYS Posted April 20, 2011 Report Posted April 20, 2011 With +6 timing and 19cc domes you might wanna run higher octane.. Hp depends on porting but with Gnarly pipes and trail port im guessing 55-60hp range. Who ever did the porting should be the one to ultimately tell you though.. Quote
bansheesandrider Posted April 20, 2011 Report Posted April 20, 2011 (edited) How and why would pump gas blow up an engine with that set-up....? How is race fuel different...? Because with the timing advanced that much and the compression that high, you are going to have pre-ignition and/or detonaton with pump gas. Race gas has higher octane, which will keep this from happening. Pre=ignition and detonation cause all kinds of problemms: spark plug loosening, holes in pistons, collapsed ring lands, damaged crankshaft bearings, blown head gaskets. Edited April 20, 2011 by bansheesandrider Quote
MacRacer1 Posted April 20, 2011 Report Posted April 20, 2011 Oh I guess I missed that thanks bro:) Haha yea 55-60 is my guess also race gas us EXPENSIVE I believe it is 45 for a 5 gallon drum. So be saving your pennies lol Quote
justinb1989 Posted April 20, 2011 Author Report Posted April 20, 2011 Oh I guess I missed that thanks bro:) Haha yea 55-60 is my guess also race gas us EXPENSIVE I believe it is 45 for a 5 gallon drum. So be saving your pennies lol really thats it, well that sucks Quote
Larry's Shee Posted April 20, 2011 Report Posted April 20, 2011 It also depends on elevation. If you are 5000+ you'll be allright. Awful lot of timing for constant running, might back it off to +4. Quote
justinb1989 Posted April 20, 2011 Author Report Posted April 20, 2011 It also depends on elevation. If you are 5000+ you'll be allright. Awful lot of timing for constant running, might back it off to +4. im around 1400 ft, what will happen if i leave it at that timing Quote
WINDYCITYJOHN400 Posted April 21, 2011 Report Posted April 21, 2011 im around 1400 ft, what will happen if i leave it at that timing BOOM! Try +4 and with 19cc domes you'll want 110 race gas. Try looking here. http://bansheehq.com/forums/index.php?showtopic=130851&st=0 It might answer your question. I'm going to say 60 at best. Quote
Jereme6655 Posted April 21, 2011 Report Posted April 21, 2011 really thats it, well that sucks wait a minute....your 15....with a banshee that has around 55-60 hp. What do you mean that "sucks?" These bikes come stock with around 35 hp and are still a front runner in the power even on newer quads today. That kind of power is alot more than i would trust most 15 yr olds with....no offense. Want some more proof? a banshee with 55-60hp is making enough power that weighing in at 386lbs (supposed dry weight) equals 1hp per 6.4 lbs....... Where as the 2011 Dodge Ram quad cab 4x4 tips the scales at around 5100lbs. With the V-8 Hemi motor making 380hp that equals 1hp for every 13.4 lbs. Congradulations......somehow you think that having a QUAD with a power ratio two times greater than a big ass strong truck isn't good enough. lol. But if you'd like a different example let me know...ill think of another one. In all seriousness though.....a 55 hp banshee isn't a joke....it's not going to take shit from alot of other quads. It'll be PLENTY fast... Quote
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