Using throttle to control cornering arc? - Page 2

derf · 12-14-2009, 11:31 PM

Quote:

Originally Posted by TIGGER

I try to set up the corner before entry but if necessary, I will use more brake on corner entry... is this a trick question? You're not on the throttle on corner entry which basically determines your arc. Obviously, you can make adjustments with the throttle on corner exit... I don't know, it just seems like an awkward question....

Pretty much my answer too, but I'm also not sure I understand the original question

was92v · 12-15-2009, 12:09 AM

Interesting question. I don't use it to define my line (arc) through a turn. That is done with visualizing the line, hitting your turn in mark and rolling through on steady to increasing throttle. I use it some on the street if needed and used it extensively when I raced to make quick direction modifications while at high speed with a lot of lean angle. It is (for me) a good way to make corrections or changes when you have too little available traction for brakes or steering input. It is also a way to modify your direction when hanging off without moving your body or putting unwanted input into the bars. For me, it is just another tool to put the bike where I want when other inputs might be inappropriate. The few time I've brought this up with friends they either get a vague look in their eyes or look at me like I have 2 heads, so I figured it was just something that worked for me and STFU on that.
I would imagine that dirt riders use something like this more than pavement guys, but IDK since I don't ride dirt.

No Worries · 12-15-2009, 01:01 AM

Chapter 9 in Lee Parks' Total Control is all about Throttle Control. Basically, he says that you know that you are using the throttle correctly in a turn when the suspension barely moves. That's smooth.

One of the many reasons I like my old GS1000 is that my throttle connects directly with the carbs. When I open the throttle, the piston/needle rises exactly the same as my throttle, letting in as much fuel as my right hand says.

There are no vacuum operated pistons that rise up due to air pressure like the constant velocity carbs on my old CBR1000. And there are no fuel injectors that have a dozen sensors that let in exactly as much fuel as the computer tells it to.

Is my right hand better than a computer? Hell no. I've bogged the engine many times, opening the throttle too fast or being in the wrong gear. One place I think I'm better than a computer is going into and coming out of a downhill corner. I feel that I can transition between the brake and throttle so smoothly that there is little suspension movement.

FT BSTRD · 12-15-2009, 02:00 AM

Strange you should ask. I actually consciously did this while riding this afternoon.

I think in limited traction situations the benefits/application options are diminished.

I find, though, that cornering arc decreases with the input of throttle and increases with throttle reduction.

I must be doing it wrong.

Amber Lamps · 12-15-2009, 02:17 AM

Quote:

Originally Posted by FT BSTRD

Strange you should ask. I actually consciously did this while riding this afternoon.

I think in limited traction situations the benefits/application options are diminished.

I find, though, that cornering arc decreases with the input of throttle and increases with throttle reduction.

I must be doing it wrong.

Hmmm... so you are on the throttle entering a corner? I'm on the brakes, sometimes right up to the apex and then I apply the throttle... I don't know, I must be missing something. I'm going to bed, goodnight all!

Dnyce · 12-15-2009, 02:29 AM

Quote:

Originally Posted by FT BSTRD

Strange you should ask. I actually consciously did this while riding this afternoon.

I think in limited traction situations the benefits/application options are diminished.

I find, though, that cornering arc decreases with the input of throttle and increases with throttle reduction.

I must be having fun.

lol

OTB · 12-15-2009, 05:15 AM

I use it in everyday riding..especially on long open sweepers. Keeps me at a constant lean without making scalloped turns. High speed twisties...not so much..

try it, you'll like it...

shmike · 12-15-2009, 09:04 AM

Quote:

Originally Posted by FT BSTRD

Strange you should ask. I actually consciously did this while riding this afternoon.

I think in limited traction situations the benefits/application options are diminished.

I find, though, that cornering arc decreases with the input of throttle and increases with throttle reduction.

I must be doing it wrong.

You aren't doing it wrong but you aren't at the threshold of traction.

It should be even more obvious in low traction situations (think ice).

Here is an extreme example but it shows it well.

If he used less throttle, he could hold a tighter line, more throttle pulls him toward the outside of the turn.

http://www.youtube.com/watch?v=mRHoAKn4KnY

smileyman · 12-15-2009, 10:21 AM

In everyday riding i sometimes modulate throttle in long corners at normal highway speeds to keep my line. Its a lazy way to maintain your arc. In high speed situations like racing I am applying all the throttle the rear tire and corner radius will stand. Backing it off at any point will just kill your drive down the next straight. Pause if you must, but dont lift.

Fleck750 · 12-15-2009, 05:33 AM

Quote:

Originally Posted by No Worries

One of the many reasons I like my old GS1000 is that my throttle connects directly with the carbs. When I open the throttle, the piston/needle rises exactly the same as my throttle, letting in as much fuel as my right hand says.

There are no vacuum operated pistons that rise up due to air pressure like the constant velocity carbs on my old CBR1000. And there are no fuel injectors that have a dozen sensors that let in exactly as much fuel as the computer tells it to.

Is my right hand better than a computer? Hell no. I've bogged the engine many times, opening the throttle too fast or being in the wrong gear. One place I think I'm better than a computer is going into and coming out of a downhill corner. I feel that I can transition between the brake and throttle so smoothly that there is little suspension movement.

Someone else understands!!!!!

I've tried to explain this to people about the KZ, but they don't get it.

It was something I really enjoyed on the 1977 350 4 barrel Pontiac, too.

12-15-2009, 02:00 AM	#4
FT BSTRD Tractor Driver Join Date: Jun 2008 Location: Franklin, TN Moto: Buell XB12X Ulysses Posts: 1,007	Strange you should ask. I actually consciously did this while riding this afternoon. I think in limited traction situations the benefits/application options are diminished. I find, though, that cornering arc decreases with the input of throttle and increases with throttle reduction. I must be doing it wrong. __________________ "I do get tired of reading,'my buddy is a racer and says the Buell will never work' I always want to say 'Who the FCK is your buddy and is he faster than Shawn Higbee?" --Erik Buell*

12-15-2009, 10:21 AM	#9
smileyman White Trash Hero Join Date: Mar 2008 Location: NW Arkansas Moto: Buell 1125R Porco Rosso Edition Posts: 4,895	In everyday riding i sometimes modulate throttle in long corners at normal highway speeds to keep my line. Its a lazy way to maintain your arc. In high speed situations like racing I am applying all the throttle the rear tire and corner radius will stand. Backing it off at any point will just kill your drive down the next straight. Pause if you must, but dont lift. __________________ Arkriders.com To be the best you must first be willing to risk the worst!

12-15-2009, 12:09 AM	#2
was92v Nowhere Man Join Date: Nov 2008 Posts: 558	Interesting question. I don't use it to define my line (arc) through a turn. That is done with visualizing the line, hitting your turn in mark and rolling through on steady to increasing throttle. I use it some on the street if needed and used it extensively when I raced to make quick direction modifications while at high speed with a lot of lean angle. It is (for me) a good way to make corrections or changes when you have too little available traction for brakes or steering input. It is also a way to modify your direction when hanging off without moving your body or putting unwanted input into the bars. For me, it is just another tool to put the bike where I want when other inputs might be inappropriate. The few time I've brought this up with friends they either get a vague look in their eyes or look at me like I have 2 heads, so I figured it was just something that worked for me and STFU on that. I would imagine that dirt riders use something like this more than pavement guys, but IDK since I don't ride dirt.

12-15-2009, 01:01 AM	#3
No Worries Keyboard Racer Join Date: Feb 2008 Location: Mile High City Moto: Old Superbikes Posts: 1,016	Chapter 9 in Lee Parks' Total Control is all about Throttle Control. Basically, he says that you know that you are using the throttle correctly in a turn when the suspension barely moves. That's smooth. One of the many reasons I like my old GS1000 is that my throttle connects directly with the carbs. When I open the throttle, the piston/needle rises exactly the same as my throttle, letting in as much fuel as my right hand says. There are no vacuum operated pistons that rise up due to air pressure like the constant velocity carbs on my old CBR1000. And there are no fuel injectors that have a dozen sensors that let in exactly as much fuel as the computer tells it to. Is my right hand better than a computer? Hell no. I've bogged the engine many times, opening the throttle too fast or being in the wrong gear. One place I think I'm better than a computer is going into and coming out of a downhill corner. I feel that I can transition between the brake and throttle so smoothly that there is little suspension movement.

12-15-2009, 05:15 AM	#7
OTB The Man Join Date: Feb 2008 Location: CrabTown USA Moto: 00 Bimota DB4 Posts: 823	I use it in everyday riding..especially on long open sweepers. Keeps me at a constant lean without making scalloped turns. High speed twisties...not so much.. try it, you'll like it...