yamaha nytro=600cc?

JohnBoyTurbo

Active VIP Member
Joined
Jan 24, 2009
Messages
177
Reaction score
21
Location
Kinuso, AB
Good question. I always thought it was an 800 class sled. Unless a stock nytro was put in the 600 modified class.
 

Silhouette

Member
Joined
Dec 28, 2008
Messages
11
Reaction score
0
Location
Edson AB
power to weight ratio, the nytro's is a little behind the 600 in hp./lb, but ahead in torque/lb.
 

SLY

Active VIP Member
Joined
Sep 11, 2008
Messages
409
Reaction score
13
Location
Slave Lake
4 strokes make less power per cc than 2 strokes because there is one power stroke every 4th stroke instead of every 2nd stroke. That's why in MX you have 450cc four strokes racing with 250cc 2 strokes (both around 50hp) and 250cc 4 strokes racing with 125cc 2 strokes (both 30ish hp). The 2 strokes are a little lighter as well, just like the sleds but you've seen what's happened with the MX'ers. Same thing will happen with 4 stroke sleds eventually and its already starting, the weight will come down and the hp will come up.....then there's boost:d just run a boosted 600 2 stroke against a boosted 4 stroke :p
 

TheLonelyIsland

Active VIP Member
Joined
Sep 22, 2009
Messages
5,189
Reaction score
11
Location
JESUS' BEAUTIFUL TOWN OF SOOKE BC
4 strokes make less power per cc than 2 strokes because there is one power stroke every 4th stroke instead of every 2nd stroke. That's why in MX you have 450cc four strokes racing with 250cc 2 strokes (both around 50hp) and 250cc 4 strokes racing with 125cc 2 strokes (both 30ish hp). The 2 strokes are a little lighter as well, just like the sleds but you've seen what's happened with the MX'ers. Same thing will happen with 4 stroke sleds eventually and its already starting, the weight will come down and the hp will come up.....then there's boost:d just run a boosted 600 2 stroke against a boosted 4 stroke :p

thanks man , that question has been bothering me for 2 yrs!!!
 

all-4-stroke

Active VIP Member
Joined
Nov 19, 2007
Messages
182
Reaction score
11
Location
saskatchewan
4 strokes make less power per cc than 2 strokes because there is one power stroke every 4th stroke instead of every 2nd stroke. That's why in MX you have 450cc four strokes racing with 250cc 2 strokes (both around 50hp) and 250cc 4 strokes racing with 125cc 2 strokes (both 30ish hp). The 2 strokes are a little lighter as well, just like the sleds but you've seen what's happened with the MX'ers. Same thing will happen with 4 stroke sleds eventually and its already starting, the weight will come down and the hp will come up.....then there's boost:d just run a boosted 600 2 stroke against a boosted 4 stroke :p

your pretty much exactly right. i still think its unfair to group the 4 strokes with the 2 strokes cuz they each have characteristics that make each one unique. im sure you all know what they are. but the basic reason they put the nytro in the 600 class is just the horsepower is equal with that of a 2 stroke. but if you really wana see the fine differences, check out dyno charts for both and that should explain a little more to you of the benefits and disadvantages of both :d
 

akhunter66

New member
Joined
Sep 1, 2011
Messages
1
Reaction score
0
It is only competitive in that class lol just kidding I have raced against them and beat them on a tight track with a 500d p-word
 
Top Bottom