Tks for the Info, stretching my 2014 this week for next weekend. Curious are you In 6th with that gearing? Tk you again very Informative:)
Yep, I'm in 6th gear in the 1/4 mile. I've found it easier to launch with more gearing but it is a hard thing to learn what gearing helps you with the launch and 60' times but will still do well in the quarter mile. I liked my -1/+7 and the +6 seemed to work pretty well at the track a few weekends ago when I went. Gearing commander is a good site to help figure out top speeds with different gearing combos, although my top speed seems to be about 5mph off what it said for some reason.
Originally Posted by Yogotta B. Biking
I read through last half the thread with great interest..
My gen4 is atill a streetbike, but I made some changes to it coz in my country we have events where we can do one run and get the following read outs. quarter mile time/speed, half mile time/speed and fifth mile speed.. fifth mile is -1/+1 gearing for me as I just shy of limiter in 6th on the fifth mile
My interest in the threat is gearing and of course the use of mr12.
I have bought parts out of the gen4 race catalogue to assist the bike a bit.. what changes do I need to make, hardware for mr12? I did a race gasket with cam degree work.. limiter set to 14k rpm
Did you do ceramic bearings in wheels and gearbox?
I wouldn't think you'd need to do anything hardware wise to run MR12. You will want to tune for mr12 as the tunes are way different from MR12 and pump gas. I'm not an expert tuner by any means but I think you'd want to talk to a tuner and see if they'd do anything with timing on mr12 or just keep it stock.
I did do ceramic wheel bearings but haven't touched the gearbox. Since my bike is really mostly a track bike or nice weather bike at this point, I also left out the rubber seals on the wheels. This with the ceramic wheel bearings allow the wheels to spin for what seems like forever. I wouldn't leave the seals off for a street bike.
Hi man!luv reading your thread!the Arata full system is a beautiful piece of Japaneses workmanship!if I didn't already have a Nassert Beet I would of purchased the Arata system for sure!good luck and what's your ultimate 1/4 time?
Thank you! I honestly wasn't a huge fan of the full can systems but the Arata has really grown on me. The Nassert Beet is a beautiful exhaust as well
Goal wise, I don't think I really have any goals for the 1/4 mile anymore. I'd like to get a bit deeper into the 8s but I'm happy that its consistently a 8 second pump gas bike that can be ridden on the street whenever I'd like. I would eventually like to try to do 200mph again but with my son being 9 months old and wife talking about trying for another before too long, I'll just be happy with my 8s and a few track days a year :)
Think you better concentrate on the gearing and do some test.
also if you can put a woolich with data loger and see your AFR and adjust...
work on your body position A LOT... free hp
I would put a busa front fender.
deleting a caliper would do more than the bearings.
seal your airbox chassis, mouth, 2 lids....
For top speed stuff, definitely listen to mpp as he knows his stuff. Another tip I've seen for top speed stuff is to remove anything that sticks out on the bike as that is just something else to catch air and theoritically slow you down. Levers, bar ends, mirrors, body positioning, etc.
I did make it to the track in the beginning of October and bike went 8.9s but was pretty rusty from not having raced or really ridden much this year. I was also 200ish in boxers too which didn't help anything lol. If I could get back down into the 180s or even 170s like I was last spring, get my clutch hand to work and get the tune dialed in a bit more I think it'd go a bit quicker.
I also picked up a used DME flat oil pan, found a used one for sale for a decent deal and scooped it up as you never see these things pop up used. Going with the flat pan makes me kind of want to go with a side winder too. I LOVE the Arata but the system does hang a little lower than the stock header did and with being so low for a drag bike I do not have much clearance. I think I was honestly holding back a bit on my launching as I was afraid to wheelie and come down on my fancy new exhaust.
With my son being born my motivation to go out street racing has been reduced greatly as I want to be around when he gets older and thinking back I've done a lot of stupid shit in my days lol. With not doing much if any street racing I was thinking of getting a slightly longer swing arm over the winter to help take some of the skill required out of my left hand. See if I can find a used one pop up this winter I might jump on it.
Then maybe just a few small things this winter, like try painting my race fairings from green to black as I don't love the green and just other little dumb things like grind down the extra rear brake caliper mount I have to make it not look so dumb/bulky on the back wheel since I don't run a rear brake.