redline in 6th gear..stock gearing

[greatwhiteninja]

wandering how many of you guys can redline 6th gear with stock gearing? i also have full exhaust/jet/pod filters. im not sure if its my weight holding the bike back ( 330lbs and not easily able to tuck ) but in 6th gear on flat ground im lucky to hit 11k rpms. usually 80mph is the wall i hit around 10-10.5k, now obviously down hill or if the wind is with me i can do a little better. 5th i can redline which is almost 90 but i really dont wanna have to be at redline screaming down the hwy ..loL~ , my reason is i want just a little more top end, i find my self in most situations cruising at 80 on the hwy and i feel like at times i need just a little more, so id be happy to be able to hit 90 as easy as i can hit 80.. considering changing to a 15t sprocket, but if i cant get much past 10k in 6th im wandering what will happen with a 15t..

[alex.s]

stock gearing, normal sized wind-screen, full exhaust and jetted by dealer, but still have the airbox in. easily redlines in 6th at a full tuck. i'm 170lbs

[wtfh4xx]

Flat open stretch max is 108ish fully tucked.
No idea what RPM's were, eyes on the road except for glimpse at speedo :P

[ratlab]

stock gearing -leovince pipe-dynojet kit and bmc filter-zg dubble bubble-i'm 165 and my bike goes 100 i have a friend who is 6'3 and 230 and bike will only go 85 with him on it

[greatwhiteninja]

well if you go by gear commander with stock gearing, 6th gear @ 13000rpms is 105mph, but supposedly the speedos are off by 8% or something at least on the 08-10's so probably puts speeds closer to 100mph when reading 110 . im curious to see when i get my aftermarket screen if it will effect the top end any. debating a 13t also since it may allow me to redline 6th

[ratlab]

it takes forever to get to redline in top gear with stock gearing -have you thought about clip-ons,it's not a huge change,but does get you out of the wind a bit-on 250's i've found every little bit helps

[Live2ride]

Originally Posted by ratlab

stock gearing -leovince pipe-dynojet kit and bmc filter-zg dubble bubble-i'm 165 and my bike goes 100 i have a friend who is 6'3 and 230 and bike will only go 85 with him on it

I'm 245lbs and around 6'2"-6'3", stock gearing got me to 100mph indicated on a flat road, almost no wind. My bike was shimmed, snorkel removed and with the stock windscreen. The bike could have gone faster than 100mph but I had to slow down. I have found that on short straights I can get to around 95mph with my puig db screen with more to go if the straight were longer. Bottom line is that the bike is fast enough for any street use. It's simply the acceleration above 60mph lacks power that 0-60 has. I think your friend could get more speed if he learned to tuck in further and reduce his drag.

[greatwhiteninja]

I just want 90 without tucking LOL

[Kevin2109]

Originally Posted by wtfh4xx

Flat open stretch max is 108ish fully tucked.
No idea what RPM's were, eyes on the road except for glimpse at speedo :P

Thats 108 indicated right??? Ive only hit 104 GPSed, bouncing off redline for 10+ seconds, It would not go faster lol

Originally Posted by greatwhiteninja

I just want 90 without tucking LOL

Not to be an ass but there are really only two things to do, loose weight, or get more HP (Full exhaust, pods, and jet kit)

A double bubble wind screen may help

[rusninja]

shesh the speed you go on 250s id be worryed to see you guys on 600s. XD

[Kevin2109]

Lol you should have been at the Kawasaki ticked to ride event


Going really fast isnt scary, its when you need to slow down that it gets really scary lol Just saying

[rusninja]

lol i wonder how ill be when i finally get a bike :P never needed to go past 80 in my car and that was rage in the freeway of needing to pass a few cars. x]

[greatwhiteninja]

Originally Posted by Kevin2109

Thats 108 indicated right??? Ive only hit 104 GPSed, bouncing off redline for 10+ seconds, It would not go faster lol




Not to be an ass but there are really only two things to do, loose weight, or get more HP (Full exhaust, pods, and jet kit)

A double bubble wind screen may help

Bike is fully modded ,no more HP . And Double bubble is coming .. loose weight is not a option at least enough to make it go faster LOL always been a big guy, even in my gym days ( use to be a bit of a muscle head ) couldn't get below 270. Owell it is doable with you smaller guys so ill play around with gearing and see what I come up with. and 104 sounds right cause gear commander says 105mph in 6th at 13k, stock gearing.

[nah.uhh]

Originally Posted by greatwhiteninja

Bike is fully modded ,no more HP . And Double bubble is coming .. loose weight is not a option at least enough to make it go faster LOL always been a big guy, even in my gym days ( use to be a bit of a muscle head ) couldn't get below 270. Owell it is doable with you smaller guys so ill play around with gearing and see what I come up with.

Don't shortshift
Shift Between 12.5 and Redline in fifth gear and you should be ably to hit atleast high 90s indcated in 6th. I don't go to 6th if I'm driving under 80, if I'm accellerating I don't go to sixth til 90mph.. I find shifting out of fifth at 75mph or lower kills 6th gear accelleration and top speed

[greatwhiteninja]

yeah i can redline 5th @ 90 ruffly, shift into 6th and it doesnt maintain really... drops to 80-85. i mean if im really pushing the bike to its limits i can almost do 85 in 6th on flat ground..but the usualy speed im finding is 80. if i do a 15t im thinking 5th would get me to 90 at a lower rpm , if i do a 13t i can probably run 6th to 12k and do 90. ill buy both gears and see which one is better.

[CThunder-blue]

Honestly, it's your weight. Force = Mass * Acceleration, therefore Acceleration = Force/Mass. Your bike does not have enough HP to change the rate of acceleration past 80mph. Wind resistance plays a major factor as well. If you are not able to tuck in due to your size, it's hindering your top speed. You're acting like a parachute on your bike. When you are on a decline, you're able to slightly overcome this barrier because the larger mass you have, the greater earth's gravity affects you.

[greatwhiteninja]

yep i agree.. ill still play with gearing and see , plus the windscreen.

[almost40]

http://www.ninjette.org/forums/showthread.php?t=77557

[greatwhiteninja]

Originally Posted by almost40

http://www.ninjette.org/forums/showthread.php?t=77557

nice, thats a 15/41 sprocket setup?

[almost40]

Nope 14/41.
Theres another vid there at you.tube that hits redline in 6th with a good tailwind.

[greatwhiteninja]

wander if a 41t in my case would be even lower then my current 10-11k max in 6th or same..

[CThunder-blue]

Gearing won't do much. You can try it, but all it will do is decrease the RPM at the given speed. Instead of doing 80mph at 10k, you'll be doing 80mph at under 10k. It won't change the fact that you are hitting that air/hp wall.

If you're really needing more speed, you should consider moving up to a 500-650.

[rockNroll]

I almost did an indicated 90mph once. I ran outta road.

[greatwhiteninja]

i can go faster in 5th then 6th.. so gearing should help to a extent, i just dont want to be at 12500-13k doing 90 .. like to be a little less then that IF i can. ive had bigger bikes, that was the reason i got the 250 so the temptation of doing 130+ isnt there..loL!

[Alex]

Originally Posted by CThunder-blue

Honestly, it's your weight. Force = Mass * Acceleration, therefore Acceleration = Force/Mass. Your bike does not have enough HP to change the rate of acceleration past 80mph. Wind resistance plays a major factor as well.

Academically, weight has almost nothing to do with top speed. If all other factors are the same, someone who weighs much more than someone else will reach exactly the same top speed, it will just take longer to get there. But in the real world, for motorcycles, weight goes along with size as the rider plays such a large part of the aero profile. And yes, the more wind resistance, the lower the top speed. To markedly change that, one needs to get more aerodynamic, or add more power.

[greatwhiteninja]

yeah i agree its more of my width and sitting up, then weight..loL! for even you smaller guys that are capable of 100+ can you do 90 not tucking down i wander?

[Kevin2109]

Originally Posted by CThunder-blue

Agreed, but weight does play a part in reaching top speed. You must be able to accelerate to reach any given speed. Since acceleration is affected by weight, your top speed is affected indirectly.

Also wind resistance. If your tiny you can hide behind the fairings and windscreen. IMO

[CThunder-blue]

Originally Posted by Kevin2109

Also wind resistance. If your tiny you can hide behind the fairings and windscreen. IMO

I just deleted that post. LOL. I was focusing on his size when I mentioned weight. Alex is right, weight is insignificant to a rider's profile in regards to top speed.

[rockNroll]

Originally Posted by CThunder-blue

I just deleted that post. LOL. I was focusing on his size when I mentioned weight. Alex is right, weight is insignificant to a rider's profile in regards to top speed.

My bike seems a tad slower after a couple burritos. Just sayin'

[alex.s]

Originally Posted by rockNroll

My bike seems a tad slower after a couple burritos. Just sayin'

you mean i'm the only one who gets turbo-jets after burritos?

if you're at redline, flick it into 6th, and can't go any further or even decel like you said, it sounds to me like your bike isn't jetted properly. i would be interested to see a dyno run on your bike

[kkim]

Originally Posted by greatwhiteninja

Bike is fully modded ,no more HP .

what are your mods?

[k-os]

You may be too lean up top that it's starving for fuel and can't accelerate anymore.

[oblivion007]

I have been able to redline with all stock

[FF0000]

It may be a little different because I'm on a 2007 pre-gen totally stock, but I was able to redline in 6th only yesterday. I'm 5'8" 170 lb. As some people have mentioned, the speedo isn't exactly accurate, but I was redlining in 6th at 105 mph. I didn't hit the rev limit, but I'm pretty sure I could have if traffic was on my side.

[EsrTek]

Originally Posted by greatwhiteninja

yeah i agree its more of my width and sitting up, then weight..loL! for even you smaller guys that are capable of 100+ can you do 90 not tucking down i wander?

Yep, I can hit 90 np sitting up like I was doing 25.. tuck and instantly gain more speed, tach stays the same.

[greatwhiteninja]

stock was the same situation once at 80ish.. now modded i just get too 80 faster mods are.. no air box, uni pod filters, keihn 110 mains, shimmed with 3 washers, idle mixture screw like 3ish turns out, carbs synced.. alien P full exhaust. bike has 1200 miles, full synthetic oil @600. the bike runs great IMO, huge improvement over stock. im gonna attempt to tuck down under the screen next time i go out to see if it makes a difference.

[kkim]

try going up on the mains to 112. if it gets worse, try 108s.

[greatwhiteninja]

now if jetting is the issue would i still be able to pull to redline easily in all other gears? i mean its not a big deal to swap jets so i can definitely try that, i just assumed its a size issue and not tucking

[ratlab]

Originally Posted by greatwhiteninja

yeah i agree its more of my width and sitting up, then weight..loL! for even you smaller guys that are capable of 100+ can you do 90 not tucking down i wander?

i can get 90 mph without tucking if i ring it out in 5th

[alex.s]

Originally Posted by greatwhiteninja

now if jetting is the issue would i still be able to pull to redline easily in all other gears? i mean its not a big deal to swap jets so i can definitely try that, i just assumed its a size issue and not tucking

6th gear is the most load you can put on the engine... if you can redline in 6th you can redline in any of the other gears. just because you're able to get redline when you don't have as much load on it doesn't mean it's jetted for optimal high-end power. also "proper" jetting is kinda a subjective thing depending on what you're going for. you can jet for more low-end grunt, or for high-end power. for top speed i believe you would rather jet for the top end.


edit: wait you're trying to redline it without tucking?

now thars your problem!

scoot back on the seat, hunker down... get out of the wind. if you aren't tucking you're basically running with a big parachute open...