whats the difference btw rally and on-road
#1
whats the difference btw rally and on-road
whats the difference btw say a nova kappo .21 rally ($309) and a nova kappo .21 ($343)?
specs are identical yet the rally is $30 cheaper
and how does the sport n21r7 stack up to either of these
specs are identical yet the rally is $30 cheaper
and how does the sport n21r7 stack up to either of these
#2
From what i seen 1speed trans for shaft and the its the belt driven ones.
#4
Tech Elite
iTrader: (4)
I believe that the stroke may be different between the two. Usually, onroad engines tend to be short stroke whereas offroad engines tend to be longstroke. This places the powerbands in different locations in the power spectrum (short stroke is usually more high mid to top end while long stroke is usually more low end to middle mid-range).
#5
I believe that the stroke may be different between the two. Usually, onroad engines tend to be short stroke whereas offroad engines tend to be longstroke. This places the powerbands in different locations in the power spectrum (short stroke is usually more high mid to top end while long stroke is usually more low end to middle mid-range).
I alway's have had good luck using long stroke /high port .21's in my onroad car's
and Short Stroke. 3 - 5 port motors in my offroad buggys.
??
#7
copy and pasted right off novarossi's website
bore and stroke are the same. im assuming the principle we use in our real cars for drag racing hold true here. This is a larger bore/shorter stroke will rev higher and make more power up stairs while a smaller bore/longer strock yielding the same cubic inch will make more low end grunt and not rev as high. this priciple i know well. my question is what is the difference btw these two motor that spec the same. why is one labeled rally? and why is the rally 35$ less?
KAPPO.21
Displacement: 3,49 cc
R.P.M. (max power): 38.000 RPM
Practical range: 6.000-44.400 R.P.M.
Bore x stroke: 16,26x16,80 mm
Sleeve: 7 ports
Rear ball bearings: steel
Front ball bearings: steel
Crankshaft: 14mm - turbo
Carburetor: aluminium - 9 mm - slide
Glowplug: Turbo (C6TGF)
Exhaust position: rear
Starting: -
Weight: 336 g
Fuel type: 25% nitro
KAPPO.21 RALLY
Displacement: 3,49 cc
R.P.M. (max power): 38.000 RPM
Practical range: 6.000-44.400 R.P.M.
Bore x stroke: 16,26x16,80 mm
Sleeve: 7 ports
Rear ball bearings: steel
Front ball bearings: steel
Crankshaft: 14mm - turbo
Carburetor: aluminium - 9 mm - slide
Glowplug: Turbo (C6TGF)
Exhaust position: rear
Starting: -
Weight: 336 g
Fuel type: 25% nitro
bore and stroke are the same. im assuming the principle we use in our real cars for drag racing hold true here. This is a larger bore/shorter stroke will rev higher and make more power up stairs while a smaller bore/longer strock yielding the same cubic inch will make more low end grunt and not rev as high. this priciple i know well. my question is what is the difference btw these two motor that spec the same. why is one labeled rally? and why is the rally 35$ less?
KAPPO.21
Displacement: 3,49 cc
R.P.M. (max power): 38.000 RPM
Practical range: 6.000-44.400 R.P.M.
Bore x stroke: 16,26x16,80 mm
Sleeve: 7 ports
Rear ball bearings: steel
Front ball bearings: steel
Crankshaft: 14mm - turbo
Carburetor: aluminium - 9 mm - slide
Glowplug: Turbo (C6TGF)
Exhaust position: rear
Starting: -
Weight: 336 g
Fuel type: 25% nitro
KAPPO.21 RALLY
Displacement: 3,49 cc
R.P.M. (max power): 38.000 RPM
Practical range: 6.000-44.400 R.P.M.
Bore x stroke: 16,26x16,80 mm
Sleeve: 7 ports
Rear ball bearings: steel
Front ball bearings: steel
Crankshaft: 14mm - turbo
Carburetor: aluminium - 9 mm - slide
Glowplug: Turbo (C6TGF)
Exhaust position: rear
Starting: -
Weight: 336 g
Fuel type: 25% nitro