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Author Topic: What is your launch strategy??  (Read 6380 times)

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Sinker

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What is your launch strategy??
« on: August 26, 2009, 08:57:53 PM »

I have a 2009 Springer CVO and have been having trouble figuring out the best way to get it off the line fast.  I have tried everything but it just does not want to shoot out of the hole.  As a last resort I can rev it and dump the clutch, but am interested in hearing how others might do it.

Sinker
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Twolanerider

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Re: What is your launch strategy??
« Reply #1 on: August 26, 2009, 09:00:53 PM »

I have a 2009 Springer CVO and have been having trouble figuring out the best way to get it off the line fast.  I have tried everything but it just does not want to shoot out of the hole.  As a last resort I can rev it and dump the clutch, but am interested in hearing how others might do it.

Sinker

I wait for the light to change.  Let cars on both sides notice just how damn good my bike looks.  Then just roll away.  Cool don't need to show off :huepfenlol2: :drink: .
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iski

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Re: What is your launch strategy??
« Reply #2 on: August 26, 2009, 09:11:06 PM »

2LR has a good strategy.  Sometimes I push the mystery button before the light changes, too.
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MontyB

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Re: What is your launch strategy??
« Reply #3 on: August 26, 2009, 09:28:37 PM »

Rev it hard & dump the clutch frquently and you'll be buying a  lot of final drive belts.  Seen it happen too many times at rallies with guys trying too hard to look cool.

Just sayin'
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Re: What is your launch strategy??
« Reply #4 on: August 26, 2009, 10:20:02 PM »

why do you want to do that?   :nixweiss: :nervous:

:devil:
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Heatwave

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Re: What is your launch strategy??
« Reply #5 on: August 26, 2009, 10:27:03 PM »

I have a 2009 Springer CVO and have been having trouble figuring out the best way to get it off the line fast.  I have tried everything but it just does not want to shoot out of the hole.  As a last resort I can rev it and dump the clutch, but am interested in hearing how others might do it.

Sinker

No throttle-by-wire Harley will ever launch hard out of the hole with the stock programming from the factory. By design, the TBW ECU restricts the throttle position so that even if you have the throttle at 100%, the ECU will only deliver a pre-programmed amount (60-80%), if you are operating at 3k rpms or less. The only way around this is to use the ProTuner to override these settings and essentially set all throttle positions to 100% of whatever the operator has the throttle position set to at all rpms.

Only then will you eliminate that soft response you feel when trying to take off hard from a light. Nothing like big brother watching out for you (or perhaps trying to reduce warranty claims by reducing drivetrain shock from hard throttle starts).

The MoCo wouldn't want you hurting yourself or the bike by trying to do a burn out:)
« Last Edit: August 26, 2009, 10:29:10 PM by Heatwave »
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grc

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Re: What is your launch strategy??
« Reply #6 on: August 26, 2009, 10:52:39 PM »

No throttle-by-wire Harley will ever launch hard out of the hole with the stock programming from the factory. By design, the TBW ECU restricts the throttle position so that even if you have the throttle at 100%, the ECU will only deliver a preprogrammed amount (60-80%), if you are operating at 3k rpms or less. The only way around this is to use the ProTuner to override these settings and essentially set all throttle positions to 100% of whatever the operator has the throttle position set to at all rpms.

Only then will you eliminate that soft response you feel when trying to take off hard from a light. Nothing like big brother watching out for you (or perhaps trying to reduce warranty claims by reducing drivetrain shock from hard throttle starts).

The MoCo wouldn't want you hurting yourself or the bike by trying to do a burn out:)


I really don't think the MoCo does this to prevent folks from hurting themselves, they do it to prevent folks from trashing the el-cheapo parts.  I don't think the new crankshaft likes sudden applications of significant torque at low rpm's, as it has a tendency to twist out of shape.  Also tends to be hard on the new compensator design, and the marginal clutch.  And lord knows that IDS sprocket with the little chunks of Chinese rubber wasn't designed to tolerate much of that abuse.  And like previously noted, the new narrow belts may not like it much either.  If someone wants to do lots of drag racing type launches with a recent issue Harley, I suggest they look for a leftover Destroyer or they rebuild the drivetrain of their street bike with some real heavy duty aftermarket parts.

Don't forget, Harley's are old folk's bikes and shouldn't be pushed very hard.  If you really want to launch hard and impress your friends, get a crotch rocket. ;)

BTW, I don't think the Springer Sinker posted about is equipped with Electronic Throttle Control. 

Jerry
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Heatwave

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Re: What is your launch strategy??
« Reply #7 on: August 26, 2009, 11:28:53 PM »

I really don't think the MoCo does this to prevent folks from hurting themselves, they do it to prevent folks from trashing the el-cheapo parts.  I don't think the new crankshaft likes sudden applications of significant torque at low rpm's, as it has a tendency to twist out of shape.  Also tends to be hard on the new compensator design, and the marginal clutch.  And lord knows that IDS sprocket with the little chunks of Chinese rubber wasn't designed to tolerate much of that abuse.  And like previously noted, the new narrow belts may not like it much either.  If someone wants to do lots of drag racing type launches with a recent issue Harley, I suggest they look for a leftover Destroyer or they rebuild the drivetrain of their street bike with some real heavy duty aftermarket parts.

Don't forget, Harley's are old folk's bikes and shouldn't be pushed very hard.  If you really want to launch hard and impress your friends, get a crotch rocket. ;)

BTW, I don't think the Springer Sinker posted about is equipped with Electronic Throttle Control.  

Jerry

I thought all 110's after 2008 came with tbw. I believe the 2009 CVO Springer has a tbw throttlebody.

You're welcome to ride like your Harley as an "old folk's bike". Maybe that fits some riders. I know it's never been the way I ride and don't intend to start riding now like I'm wearing a depends diaper and need drop down wheels like these http://www.landingear.com/09.html. To each his own when it comes to riding but I hardly think Harleys are designed to only be ridden by "Old folks". Although clearly some riders qualify for the description.
« Last Edit: August 27, 2009, 07:50:32 AM by Heatwave »
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Heatwave

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Re: What is your launch strategy??
« Reply #8 on: August 27, 2009, 07:48:40 AM »

No throttle-by-wire Harley will ever launch hard out of the hole with the stock programming from the factory. By design, the TBW ECU restricts the throttle position so that even if you have the throttle at 100%, the ECU will only deliver a pre-programmed amount (60-80%), if you are operating at 3k rpms or less. The only way around this is to use the ProTuner to override these settings and essentially set all throttle positions to 100% of whatever the operator has the throttle position set to at all rpms.

Only then will you eliminate that soft response you feel when trying to take off hard from a light. Nothing like big brother watching out for you (or perhaps trying to reduce warranty claims by reducing drivetrain shock from hard throttle starts).

The MoCo wouldn't want you hurting yourself or the bike by trying to do a burn out:)

The comment about Harley worrying about riders hurting themselves with too much power was definitely said in jest.
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Sinker

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Re: What is your launch strategy??
« Reply #9 on: August 27, 2009, 07:55:48 AM »

I appreciate the feedback so far, but still would like to know the best way to get off the line fast. I won't be doing it all the time but every once in a while it might come in handy.

Sinker
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LarryB

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Re: What is your launch strategy??
« Reply #10 on: August 27, 2009, 08:18:49 AM »

you have to find the sweet spot, if you rev and dump, something is going to happen wheel spin or front comes up.
try reving up and let the clutch out to the friction zone and then hit it, hang on. and then speed shift
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CVORick

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Re: What is your launch strategy??
« Reply #11 on: August 27, 2009, 08:52:28 AM »

Turn on your cloaking device and they will wonder where you went.  Saves on parts and tires.  Don't forget to turn off cloaking or you'll hear that famous line, "Honest officer, I didn't see him!"
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Re: What is your launch strategy??
« Reply #12 on: August 27, 2009, 08:53:33 AM »

..................................................................
Don't forget, Harley's are old folk's bikes and shouldn't be pushed very hard.  If you really want to launch hard and impress your friends, get a crotch rocket. ;)
..................................................................

Jerry

................................................................
You're welcome to ride like your Harley as an "old folk's bike". Maybe that fits some riders. I know it's never been the way I ride and don't intend to start riding now like I'm wearing a depends diaper and need drop down wheels like these http://www.landingear.com/09.html. To each his own when it comes to riding but I hardly think Harleys are designed to only be ridden by "Old folks". Although clearly some riders qualify for the description.

Uhhh, if you look at the end of my statement you will see a little emoticon that show's a "wink".  As in this is a tongue-in-cheek comment meant to be humorous.  Looks like it hit a sore spot with you, however.

btw, those Depends make for a nice bit of extra padding when riding on a stock Harley seat. ::)

Jerry
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miker

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Re: What is your launch strategy??
« Reply #13 on: August 27, 2009, 10:10:23 AM »

I dont have one.  The bike weighs in at 900+, me at 275 and Schmoops, well I believe her data is classified.

Anywho, 1100-1200 pounds and 80 horsepower, "launching" is still descriptive, however it is more akin to ship leaving port.

 ;D

Only having fun with ya.

Profiled cams(take your pick), flowed heads, tuned exhaust and adjusted tbw table may help get you somewhere.

« Last Edit: August 27, 2009, 10:43:52 AM by miker »
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Heatwave

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Re: What is your launch strategy??
« Reply #14 on: August 27, 2009, 10:29:55 AM »

Uhhh, if you look at the end of my statement you will see a little emoticon that show's a "wink".  As in this is a tongue-in-cheek comment meant to be humorous.  Looks like it hit a sore spot with you, however.

btw, those Depends make for a nice bit of extra padding when riding on a stock Harley seat. ::)

Jerry

Missed the wink...I suppose someday a "depends" will be my best friend....just hope my alhzeimer's is bad enough at that point that I won't have a clue:)
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