What do you guys think would win in a 1/4 mile, a basically stock f3 or a ninja 500r that has been stroked to 650cc and has a lot of "engine mods" as I've been told.

I've still never seen the 500r but the guy that has it said he would easily beat me in a race.

I still am having trouble figuring out why anyone would ever do that much work to such a crappy little bike.

ps he's trying to sell it for $6000, (msrp on a new one is $5000).

 

it's either crap or he spent too much money on it.

650 from 500 in a parallel is alot... I meant that's a huge change in stoke... enough I'm not even sure there would be enough room in the head to get that much.

Anyhow, 600 for sure.

 

the only sensible mod would have been the ex650 engine, also a parallel twin - but that only makes ~60-70hp and would loose miserably to the 600.

 

I figured my f3 is faster but every time I talk to this guy all he says is that his bike has "tons of engine mods", so i'm pretty sure he has no clue, I just didn't know if it was even possible to make a 500 fast.

 

well just tell him to man up and meet ya @ the track . im always tired of hearing ppl brag about their **** and never show it. so go beat that ninja then come back and brag that your stock f3 (f3 pride ) beat his "super modified bad ***" ninja 500.. if possible bring pictures or a time slip

 

The guy that worked on my F1 years ago raced in the 250 and 500 class.
IIRC he had a Yamaha Seca(?) that was race modified and WAY fast. Of course this was a few years ago, and 600's weren't the monsters they are today.
Size alone does not always dictate how fast a bike can be......track times alone, his 250 smoked my 600 every time.

 

Those old racing 250's are two stroke and of course would smoke you. Never mess with a two stroke....

 

He's right 2 strokes are wicked fast but a stroke of 150 extra cc is insane I'm calling Bull**** on that one.

 

haha this is really funny that you'd post this up I just want into a guy at the stealership ridinga 96 600 f2/3 (I don't know which) with "every mod possible"who said he smokes hayabusas and my 954 "wouldn't stand a chance"...

I basically called him out on it like "if you have to say its fast its never as fast as you want me to think" then we all laughed at him and I walked away

 

lol thats apples and oranges, the rs250 or tz250 of today puts down just less than 10 hp shy of 100, and only weigh 250lbs dry as compared to a 600 usually nearly 100 lbs heavier.

were talking a ninja 500, which kawasaki never intended to be a "fast" bike vs an f3 which was at one point the pinnacle of honda's 600cc racing design.

now he may have bored +stroked it to 650cc, its possible, but simply "hot rodding" a jap enginelike you would an inefficient stock musclecar is not going to take it's numberseven close to an ultra efficient, straight from the factory600cc racing machine.