- The LSR Launch -

[rustman]

This is a little off topic, but has anyone lifted their butt up off the seat a little in their tuck?  I had this theory about the air flowing better over my back and back down onto the tail if I arched my back a little and raised up just enough to feel the air flow smoothly over my back.  I did that most runs.  I wish I had gathered some hard data on that.

[Frank06]

3rd gear would be a bad idea because it would reduce time/distance to much and you wouldn't build speed quick enough by 1-mile..

Isn't that the point of doing the test?  Use 2nd then, give the clutch a chance too...

Sent from my Nexus 7 using Tapatalk 2

[scott g]

Some years ago - and the whole story was posted here on SUZUKIHAYABUSA.ORG, I
helped a young man at Maxton with "The Launch" question.

If I remember incorrectly, somebody please find my old post(s) and correct me.

This young man was doing drag-race style launches, burning the tyre,
and going all over the place on the first 1/4 mile.  He got the 200 MPH "hat",
but the job was NOT pretty.

AFTER getting "The Hat," he came to me with the
"how should I do my start ?" question.

We went to the start line, and I
coached him into an excellent "tuck."

I then said
" Start in 6th gear, slip the clutch up to 3,000 rpm,
and then drop the clutch, pin the throttle and hang on. 
Keep your tuck the ENTIRE distance, and don't EVER
lose that small frontal area. "

He did just that.

His time was ONLY 7 mph slower
than the all-out, balls - to - the  - wall drag race run.

Sure, if he NEEDED those 7 mph,
the drag - start was the way to go, 
but it shows that a smooth, aero and
controlled start doesn't hurt you that much, does it ?

Maybe a compromise is what is needed.........

[speedduck]

Daveed, Let me suggest the Catalyst LSR fairing. If you don't want to run the long tail just get the front part and the lower. I think it is the best Aero money can buy. I modified two front fairings and lowers. It is a major PITA. I now have the Catalyst fairing. Unfortunately rain on the salt prevented us from any runs this year. Andy Sills BMW ran around 223 ant Bonneville with the Catalyst fairing.

How much better it would be, the Catalyst fairing, do you have some estimate ?
This is the front, i couldn`t find any LSR tail,

http://catalystracingcomposites.com/i-8689328-99-07-hayabusa-lsr-upper-turbo-race.html

[scott g]

Daveed, Let me suggest the Catalyst LSR fairing. If you don't want to run the long tail just get the front part and the lower. I think it is the best Aero money can buy. I modified two front fairings and lowers. It is a major PITA. I now have the Catalyst fairing. Unfortunately rain on the salt prevented us from any runs this year. Andy Sills BMW ran around 223 ant Bonneville with the Catalyst fairing.

How much better it would be, the Catalyst fairing, do you have some estimate ?
This is the front, i couldn`t find any LSR tail,

http://catalystracingcomposites.com/i-8689328-99-07-hayabusa-lsr-upper-turbo-race.html

They have the tail - just email.

You will be faster with
the Catalyst tail (properly mounted) and the STOCK nose,
than with EITHER nose and the stock tail......

[speedduck]

I got this when asked for LSR tail,

http://catalystracingcomposites.com/i-8689325-99-07-hayabusa-low-rider-tail

[firemanjim]

Rustman, Greg and I have both used the "lift the butt" technique. At Bonneville where you have so much time at speed to try stuff I know from watching tach that with my back up and arched with butt almost where the hump would be has netted best speeds. And I am a firm believer in the serious launch vs soft pedaling up through gears then pinning it. I know Karl and I have talked about it before. My best runs are when I leave hard and go through gears to shift light with as much throttle as bike will take.

[scott g]

My best runs are when I leave hard and go through gears
to shift light with as much throttle as bike will take.

Expert opinions from somebody who
has been there, done that and
lived to tell the tale....

Jim is one of the real racers !

[fvance]

You need to call Mike at Catalyst. Neither piece is the "new" LSR fairing and tail. I don't have pictures of the new fairing and tail. I is at least 200% better than what you have.

[zrxdean]

 

[scott g]

Thanks Dean.

Last year, (2013) Hunter / Sills was in
the neighborhood of 205 MPH at BUB's.

This year, they are consistent 222-223 MPH.

Was that all due to the much better fairing ?

Wonder if the back of the tail
was open or closed ?

[scott g]

It is easy to see another 10 MPH - and maybe more - from
this setup with a few inexpensive changes to t
he bodywork - NOT the power plant.

I very much enjoyed helping Andy get
into the Bonneville 200 MPH Club
in the last hour of the last day of Speedweek.

Ask him how "we" did it......

[entropy]

Last year, (2013) Hunter / Sills was in the neighborhood of 205 MPH at BUB's.
This year, they are consistent 222-223 MPH.
Was that all due to the much better fairing ?

It doesn't surprise me at all that they picked up 15-20mph with plastic that extreme.

And IMO he could pick up another 5-8mph by aggressively using every rpm available in ALL gears.

As much as i appreciate the speed that extreme plastic gives, I gotta say i MUCH prefer the "motorcycle" look of stock shaped fairings.

But like Trini Lopez used to sing:
"If you want to be happy for the rest of your life,
make an ugly woman your wife..."

And those BMW guys musta been real happy

karl

[fvance]

That's the one. I can't wait for JC to try mine out next year.

[rustman]

Last year, (2013) Hunter / Sills was in the neighborhood of 205 MPH at BUB's.
This year, they are consistent 222-223 MPH.
Was that all due to the much better fairing ?

As much as i appreciate the speed that extreme plastic gives, I gotta say i MUCH prefer the "motorcycle" look of stock shaped fairings.

But like Trini Lopez used to sing:
"If you want to be happy for the rest of your life,
make an ugly woman your wife..."



karl

I was of the same school of thought regarding the more stockish look.  I can only have one bike, and it needs to turn street legal again soon after returning from the track.  I willingly gave up MPH so that I could do that.

Regarding Trini-  you might add that you defied him in marrying your lovely wife.  I say this in the interest of harmony (and you're not crashing at my pad if you screw it up).   

[entropy]

Regarding Trini-  you might add that you defied him in marrying your lovely wife.  I say this in the interest of harmony (and you're not crashing at my pad if you screw it up).   

hey Russ, remind me of your address!

[speedduck]

Ok, it`s so extreme, no wonder it gives more speed.
Why the tail is closed, i`ve usually seen open ones
I also like the stock fairing look, maybe there is some compromise possible.

It would be just great to get this Catalyst LSR fairing set and then pull some 185mph with 500hp turbobusa, credibility is gone forever 

[osti33]

Rustman, Greg and I have both used the "lift the butt" technique. At Bonneville where you have so much time at speed to try stuff I know from watching tach that with my back up and arched with butt almost where the hump would be has netted best speeds. And I am a firm believer in the serious launch vs soft pedaling up through gears then pinning it. I know Karl and I have talked about it before. My best runs are when I leave hard and go through gears to shift light with as much throttle as bike will take.

I'm with Jim on this one. I have seen positive results at Bonneville with my butt raised off the seat. Even if it's only 100-200 rpm more on the tach. More is more. 

[zrxdean]

Here's a really BIG picture of that fairing;

http://www.scta-bni.org/Bonneville/SpeedWeek%202013/Photos/Aug14/DSCN1471.JPG

[speedduck]

That fairing seems it could really help, on a mile course also.
And that butt lifting thing, it helps on a standing mile also, i got couple mph extra doing it.

[zrxdean]

Wow, I just Googled "butt-lift" to see what you guys are talking about, and I DO NOT SUGGEST DOING THAT. Either the butt-lift thing or the Googling. Wow.

[entropy]

Wow, I just Googled "butt-lift" to see what you guys are talking about, and I DO NOT SUGGEST DOING THAT. Either the butt-lift thing or the Googling. Wow.

60 hits on the BUTT LIFTING site in the last 2 min

[speedduck]

Do you mean the surgery or exercising ? Either one is not what i did.

[entropy]

Mika had a BUTT LIFT!!!!!!

[RansomT]

Lift like this?

Picture was taken at speed back last year (2012) at the July event in Wilmington.  Notice how the sunlight is under my butt reflects off the seat.