a rough calculation is to take your 1/8th mile time and multiply by 1.5
again thats just rough and it all depends on your setup and rear end gears. Brian I would say you are good for around 230-250mph in the 1/4 with the right gearing. NOW THATS FAST!!! :D

I think my Nutz Just disappeared on that One....Gulp !

i tried 3 different calculators using the numbers he ran and they all said about the same..... mid 7's and around 170 mph ...... thats got to be a nice ride :)

:lol: :lol: :lol:

Of course that calculation doesnt apply to MPH, but just think if it was and ypu went 250mph!!!!!!
The fastest I ever went in the 1/8th was 108mph. I have had a motorcycle up to 148mph but I was much younger and my balls were a WHOLE lot larger!

much younger with bigger balls huh.....lmao my street bike runs 10.85 in the 1/4 at 131mph..... its got more but im easing my way into the deep end......lol

Those are some damn nice #'s B. That 4.71 @ 150 works out to about 7.53 @ 186 in the 1/4. That would be impressive :!: 8)

1/8th x 1.575 = 1/4

7.40@185 is what it'd run close to. very impressive :D

It was about 25 years ago, when the Yamaha FJ1200 came out it was nasty fast. I weighed about 125 pounds soaking wet and that bike was just a frickin rocket. I think about some of the stupid crap I did back then and wonder how I made it this far!

my buddy still has his fj1200.... its a big ugly bike... but it is fast :wink: