G
Guest
·first of all, a little backround.... part of a revolving 5 guy roadracing team.... havent actually raced for 2 years as i went back to college, got a new job and moved.... but will be back in 04. team bikes include o3 r6, 01 r6, fzr 400, and a couple sv's. results include multiple regional championships and even a national championship. i'm also an A&P mechanic (aviation)- do all my own bike work, and work everyday as aa mechanic.
now for claims- YES 90+ hp is attainable, but a) its expensive. b) reliability is a definite issue. c) it's not very practical for the street.
i do not believe this is attainable with the stock displacement... 700cc's is a start. flatslides, a worked crank, and maybe some head work. the valve adjustment, or at least checking them, is recommended like every 25 hours of use. the stock valve retainers are an issue on big displacement, and big horse motors.
look for solid 70's with your typical pipe, jetkit, ignition.
80's with maybe some flatslides.
mid 80's with high compression pistons. (milling the head yields good #'s)
so on, and so on.......
the biggest, (and a believable claim from a reliable source) i've ever heard of is 108hp..... displacement was a secret, but guessed to be an 800+ motor.
NOW--- for all of you guys who are jumping up and down with your dyno sheets in your hand saying "but, but ....."...... its EASY to foil a dyno run!!!
one of my best friends for 15+ years owns a performance shop...... with a state of the art dynojet dyno.... all its takes is a slip of the clutch on an upshift and bam.... you have inflated numbers. not to disappoint, but these are factual, and expensively learned (by some)... numbers. just thought i would post because i've seen some pretty big numbers.... 90hp is not impossible....... just VERY expensive. ($4000-5000+)... so unless you're chasing Ed Key..... i wouldnt bother. (shameless plug for you there Ed)......if you dont know him..... he's one of the fastest, smoothest, OLD dudes around a racetrack you'll ever see. :wink:
now for claims- YES 90+ hp is attainable, but a) its expensive. b) reliability is a definite issue. c) it's not very practical for the street.
i do not believe this is attainable with the stock displacement... 700cc's is a start. flatslides, a worked crank, and maybe some head work. the valve adjustment, or at least checking them, is recommended like every 25 hours of use. the stock valve retainers are an issue on big displacement, and big horse motors.
look for solid 70's with your typical pipe, jetkit, ignition.
80's with maybe some flatslides.
mid 80's with high compression pistons. (milling the head yields good #'s)
so on, and so on.......
the biggest, (and a believable claim from a reliable source) i've ever heard of is 108hp..... displacement was a secret, but guessed to be an 800+ motor.
NOW--- for all of you guys who are jumping up and down with your dyno sheets in your hand saying "but, but ....."...... its EASY to foil a dyno run!!!
one of my best friends for 15+ years owns a performance shop...... with a state of the art dynojet dyno.... all its takes is a slip of the clutch on an upshift and bam.... you have inflated numbers. not to disappoint, but these are factual, and expensively learned (by some)... numbers. just thought i would post because i've seen some pretty big numbers.... 90hp is not impossible....... just VERY expensive. ($4000-5000+)... so unless you're chasing Ed Key..... i wouldnt bother. (shameless plug for you there Ed)......if you dont know him..... he's one of the fastest, smoothest, OLD dudes around a racetrack you'll ever see. :wink:
