Drag techniques......

[Skomansteve]

I've seen loads of guys virtually redlining it in every gear when changing up gears and I've thought for a while that they must be losing time on the quarter miles..........with maximum torque @ 7700 revs and peak power at 9700 revs, my logic is thinking that I should short shift so I'm changing up gears earlier - I'll try it this weekend at Woodbridge to see what result I get and whether my logic is wrong - any ideas anyone?

[Tybalt]

I've seen loads of guys virtually redlining it in every gear when changing up gears and I've thought for a while that they must be losing time on the quarter miles..........with maximum torque @ 7700 revs and peak power at 9700 revs, my logic is thinking that I should short shift so I'm changing up gears earlier - I'll try it this weekend at Woodbridge to see what result I get and whether my logic is wrong - any ideas anyone?

On your K8, you can program the shift light @ which rpm for each gear
Peak power on the K8 is 9500 rpms

IMO, i would launch from 1st @ 4K-5K, i would short shift into 2nd say 7500 rpms

3rd=9000rpms
4,5,6,=9500 rpms

Just an example to try and go from there

[justabusagirl]

you know that is a good point, on my 04 gsxr1000 i did the same thing, i shifted at the rpm were the dyno showed a stock bike made peak hp. wich was quite a bit before redline and i got some really good et,s like that!!! lets us know if you try it both ways and what the diffrence was please

[Skomansteve]

On your K8, you can program the shift light @ which rpm for each gear
Peak power on the K8 is 9500 rpms

IMO, i would launch from 1st @ 4K-5K, i would short shift into 2nd say 7500 rpms

3rd=9000rpms
4,5,6,=9500 rpms

Just an example to try and go from there

you know that is a good point, on my 04 gsxr1000 i did the same thing, i shifted at the rpm were the dyno showed a stock bike made peak hp. wich was quite a bit before redline and i got some really good et,s like that!!! lets us know if you try it both ways and what the diffrence was please


..............That's what I'm thinking as it seems to me to be quite obvious - I'll give it a try and let you know the results........ :thumbs up:

[SteveO]

Goodf luck at Woodbridge Steve.....there's gonna be a lot of S**t flying about if you dont make some good times.

[Skomansteve]

Goodf luck at Woodbridge Steve.....there's gonna be a lot of S**t flying about if you dont make some good times.

.............Cheers steveO.......I'm sure me and Busaboy will be trying our hardest to show the K8 is still king:rocket bike:..........I can just hear JD and Bazz crowing how they've beaten the Slo8's - they forget they both have highly modded engines, where ours are standard out of the crate(except for Yoshi cans in my case)...............No pressure then??......:roll eyes:



......are you coming along to say Hi??

[SteveO]

are you coming along to say Hi??

nope

[toastman]

The lower the rpm you shift at in one gear , lowers the rpm you start in the next gear....so really your not staying in that peak range.
If you take the rpm beyond, then shift, you are staying closer to that ideal torque/horsepower range.

Cheers,

Tony

[FreaK]

I'll wager that you will go fastest shifting at 10500, who wants to bet??:confused:

[Tybalt]

Kneedragger and Fastlif can shed some great insight into launching a hayabusa:not worthy: hopefully they will chime in:whistling:

[Tybalt]

A couple of more:banana: i d like to hear what they set the K8's at to shift each gear, what they launch @ and are they hitting rev limiters? as well as body position and stance?

[fastlif]

I'm shifting mine at 10700, the tach reads way further than that so all you guys shifting by the tach only have a little room there. I try to leave around 4500-5000 at launch and slip the clutch, its hard to explain. I'm 62" and usually keep a low 1.5s 60', every now and then I'll get a high 1.4.

I really have not tried different shift rpms...I may try to lower it and see what happens. BIG race in Hattiesburg, MS the 17th if anyone wants to come play!!!

[Cali Badazz !!!]

though the dyno places a load on the engine it does not compensate for a riders weight wind resistence etc. shifting at 9700 will net you a loss in my book. i know when i shortshift my bike is much more prone to wheelie i'm guessing because there is more torque down lower. however my light is set at 11,500 and the busa pulls right up until till 11,500. if i shift 1-2 at 10'500 i get a big wheelie and have to either drag back brake a lil bit or roll off hence losing time if i shift at 11'500 i feel no loss of steam very little dip in rpm between gears less wheelspin and less movement in the chassis between shifts too. i am no drag racer but i have street raced my busa over 10x now and these are my observations..btw i am on a k8 have only raced liter bikes never another busa and have left everybody way behind except for one 02 gixxer 1000 he was 2 bikes back all the way to 160mph where we let off.. so i guess it may not be making peak power but at 11.500 i am not hitting rev limiter and don't appear to be losing any ground. if i take my bike to 10,500 and gas it it pulls fookin hard to 11,500 don,t believe me go try it ..if you can hang on..lol..my forearms are so tired from the way this bike pulls above 8000 rpm..

[Tybalt]

though the dyno places a load on the engine it does not compensate for a riders weight wind resistence etc. shifting at 9700 will net you a loss in my book. i know when i shortshift my bike is much more prone to wheelie i'm guessing because there is more torque down lower. however my light is set at 11,500 and the busa pulls right up until till 11,500. if i shift 1-2 at 10'500 i get a big wheelie and have to either drag back brake a lil bit or roll off hence losing time if i shift at 11'500 i feel no loss of steam very little dip in rpm between gears less wheelspin and less movement in the chassis between shifts too. i am no drag racer but i have street raced my busa over 10x now and these are my observations..btw i am on a k8..

Innovative Motorsports came out with LM1?????? it is a plug and play hand held palm unit, O2 bung and all, plugs into the busa and records the data while riding with load, under playback you can then upload to a lab top and go back and make changes to optimize. I call it " A hand held dyno in the palm of your hand" really trick tech:thumbs up:

http://www.innovatemotorsports.com/products/lm1.php

[Cali Badazz !!!]

am i crazy or does that seem like a great deal for such great technology:confused:i would love to ride with one of those. just to see how different what my ass tells me is from the truth.

[Tybalt]

am i crazy or does that seem like a great deal for such great technology:confused:i would love to ride with one of those. just to see how different what my ass tells me is from the truth.

Yes, i know alot of guys who are playing with these now on the streets and the track, great tool:not worthy:

[Skomansteve]

I'll wager that you will go fastest shifting at 10500, who wants to bet??:confused:

Seems like freak was right.........:thumbs up:.........That's when I got my best quarter and flyer - blows my theory into the weeds :oh yeah:

[Cali Badazz !!!]

is that as high as you went? cuz i only tried 11,500 after i was told to after saying the wheelie between 1-2nd gear scared the crap outta me. and i was surprised i didn't feel the drop off i expected. and i felt like the bike was rock solid. i have raced motorcycles all my life so i'm not just blowing smoke. my bike is stock except the exhaust i run a 55 profile rear and can't drop my tire pressure in these improptu races cuz i still gotta turn it..36 psi..lol. so maybe i'm comparing apples and oranges. i have made over 50 runs by myself in trying to just control the lateral movement without slowing down too and you drag racing guys&girls are no joke. i never realized how hard going straight could be. but i tried to feel the power falling off above 10,500 and i can't. i know other bikes i had the TLR v-twin would fall on it's face way b4 redline and i HAD to short shift and other bikes dirt too would not pull over a certain point b4 redline. my k8 "feels" like it"s pulling hard to 11,500 in the first 3 gears and i noticed the lil wobble i was getting between shifts was gone too. so i been sticking to it never touched the limiter yet (i'm proud of that) used to piss me off lol..i just want someone to try and tell me what they felt.

[justabusagirl]

i shifted at 1100 rpm every time, it felt very strong, i never felt a drop off in power at all.. first gear gets nasty at about 8500 for me and realy wants to lift the front tire, i just tried to ride it out and was never forced to short shift so i dont know what the E.T would have been shifting at a diffrent rpm.

[Skomansteve]

This is me on my quickest 1/4 - against the quickest K8 on the day...............I nailed him that time:oh yeah:........... :banana:

http://media.putfile.com/SKO

[justabusagirl]

what was your et that run? and 60ft?

[Skomansteve]

what was your et that run? and 60ft?

..if I remember right 10.53 / 1.79 60ft and 139 terminal............I didn't get to try many quarters as I was concentrating on the flyers, but a bit more practice would've got nearer to the 10 second mark...........the lad in the video did a 9.95 later on....:not worthy:

[Cali Badazz !!!]

busa girl that's good to hear..i find if i relax my arms and mine are very long i dont get any deflection in the front wheel as it skims the ground but the pull feels so hard up to 11,500 it's like warp speed and it's almost a stock bike. but it is a manic feeling riding it above 10,000 like my arms are gonna be longer when i get off i also felt it let me drag my feet a lil longer to keep it straighter during the power wheelie. and once i got them up i squeeze the tank so hard or my arms get stretched and i start to slide back.. so fun. i really want to go to a track but all the ones here have closed.

[Tybalt]

busa girl that's good to hear..i find if i relax my arms and mine are very long i dont get any deflection in the front wheel as it skims the ground but the pull feels so hard up to 11,500 it's like warp speed and it's almost a stock bike. but it is a manic feeling riding it above 10,000 like my arms are gonna be longer when i get off i also felt it let me drag my feet a lil longer to keep it straighter during the power wheelie. and once i got them up i squeeze the tank so hard or my arms get stretched and i start to slide back.. so fun. i really want to go to a track but all the ones here have closed.
Same here, we have to travel a good hour and a half to get to the nearest drag strip, SPARTA( St.THOMAS) and TMP (Cayuga) and even longer to get to Grand Bend (London, Ont) On some of the bike days/nights, I know guys that ride out there, do a dozen runs and ride it back home after beatin on it, Clutch must hate them lol

[_WOLFMAN_]

Here in Calgary track is not the greatest. And looks like will be closing October 2009. Closest to tracks which are worth running on is Medicine at or Edmonton which are both close to 3 hours away.

[Cali Badazz !!!]

nothing within realistic driving range without going in debt..willow springs is the closest road course and it"s 2 hours. the big track has a back straight that has you going close to 180mph busa probably needs better brakes to go that fast. i wanna top it out one time so i can say i did it..is that stupid? or does every busa owner want to do that if they havn't already

[justabusagirl]

i have toped out every bike i have ever owned, and that is the honest to god truth, exept for this one. we live in n dakota on one of the staightest roads in the U.S. my bike is at the track were we left it because we race every two weeks, so we left our race trailer their with out stuff in it... its a 2.5 hour drive to the track were we race so its eaiser to leave it than haul it back and forth every time... when my brother gets here in june ill have him vidieo me going all out on the busa and post it, this is a great place to do it and we live wayyyy out in the country so very few cops!!!:oh yeah:

[justabusagirl]

pitdog, if you ever get out this way ill show ya a great place to open it up!!! you can go top end as long as you want, its unbelievabe to go miles like that and pray a pheasent dont fly up or a deer run out.... im sure its stupid but by god you feel alive:rofl:

[Cali Badazz !!!]

there is nothing public close where i feel confident nothing will pull out. i hit 160 easy on one straight and can go faster but then my vision gets tunneled and i don't see the sides of the road so good up ahead. but i feel cheated cuz it feels so solid and just begging to go faster. lol. and thanks i would love to ride all out for miles that would be a rush!

[justabusagirl]

lol but if we ever got out your way ya gota teach me how to lean it over ok:oh yeah: that has to take some serious grit to do that like you do!!! post up some more pics of you tearing it up!!!!:not worthy:

[Cali Badazz !!!]

i had the photographer and titanium knee sliders all ready last weekend and thesuckers threw no sparks!!! waiting for a replacement set. thought it would look cool with a shower of sparks coming off my knee.!