ok guys I sold my v-6 rail yesterday and am going back to mc rail. I want to try a different idea and am looking at the yamaha v-max 1.7 ltre or 1697 cc engine. I'm thinking of coupling it to a bmw rear diff since it's shaft driven. the bmw rear diff's have several r&p combo to choose from stock. the primary and secondary reduction are done in the case on the v-max because it's shaft driven. i'm trying to figure which r&p to go with for a 1200 lb rail on 1300 paddles. I would like to turbo this engine as well. here are some specs on the engine and trans.
a thanks to yummi for helping with the info!
ENGINE
Type: Liquid cooled, 4-stroke, DOHC, 4-valve, V-type 4-cyclinder
Displacement: 1,679cc
Bore & stroke: 90.0 x 66.0 mm
Compression Ratio: 11.3:1
Max. power: 147.2 kW (200 PS) @ 9,000 rpm
Max. torque: 166.8 Nm (17.0 kg-m) @ 6,500 rpm
Lubrication: Wet sump
Carburettor / Fuel supply: Fuel injection
Clutch type: Wet, multiple-disc diaphragm spring
Ignition: T.C.I.
Starter system: Electric
Transmission: Constant mesh, 5-speed
Final transmission: Shaft drive
Primary reduction ratio: 1.509
Secondary reduction ratio: 3.082
Gear ratio:
Gear ratio-1st gear: 2.375
Gear ratio-2nd gear: 1.810
Gear ratio-3rd gear: 1.400
Gear ratio-4th gear: 1.115
Gear ratio-5th gear: 0.935
http://www.holeshot.com/dynocharts/dyno_09vmax_fx.htmlhere are some spec on the busa to compare it to.
http://www.aperaceparts.com/tech/specshayabusa.htmlI know from enemy's rail that 4.86-1 final drive ratio works very well in the sand running 1100 paddles, my 1300's are 1" taller and of course 2" wider. the rails should be very close in weight. that 4.86 is after primary reduction.
2-1 r&p any thought's? aslo clutch type, which would be less prone to slipping?
this is just a thought right now and I can't seem to find any wrecked bikes for donars as of yet either.