T&T 9-2-16

[2006FXDCI]

I made a clutch and suspension change to my dyna and went out to the track last night to see if it made any improvements . My dyna has been wheelstanding pretty bad off the line so i softened up my rear shocks quite a bit to try and avoid the big wheelies . It felt very odd at first , my 60' times are a little slower than normal but my mph picked up like crazy . I ran 9 mph faster than ive ever went . Here are my slips for my 3 passes , im #875 . Left lane on the first pass and right lane on the last 2 passes

[2006FXDCI]

Here are links to videos for my 3 passes . 2 videos for each pass , one from the stands and also from my gopro . My gopro angle was a little low , wish i got a little better footage for you guys .
https://m.youtube.com/watch?v=yVyWuHL9hAM

https://m.youtube.com/watch?v=omu0BdVzth8

https://m.youtube.com/watch?v=_b3ixRWrdzk

Gopro videos
https://m.youtube.com/watch?v=5SE4PN2zIl4

https://m.youtube.com/watch?v=YYbvqZgtWK0

https://m.youtube.com/watch?v=d8V8NuBc3sw

[2006FXDCI]

Some of you guys in the know will recognize who i ran against in the 2nd and 3rd rounds . I couldnt be happier with how my bike performed against his . He wanted to use a pro tree which ive never used . I didnt pull out a win but in round 3 he only got me by .09 seconds . I couldnt be happier with how it all turned out . Another great night at the track !

[No Cents]

 that was a T143 you was up against on the 2nd and 3rd passes...wasn't it 
Your bike sounds good...and it looks like it is running very strong Josh! 

Ray

[2006FXDCI]

You are correct Ray ! Thank you for the compliments . Im really impressed on how well this little basement built 107" is performing on the track .

[westcomb]

Nice! 11.66 is that your best pass yet? ............. 11 sec Harley's are pretty fun! 

[2006FXDCI]

Nice! 11.66 is that your best pass yet? ............. 11 sec Harley's are pretty fun! 

My fastest pass to date was an 11.52 . And youre right , 11 sec harleys are a blast ! Hoping in the next few years to find out how fun a 10 sec harley is !

[Don D]

That motor has more than what the dyno showed. MPH shows that.
Good job Josh.

[2006FXDCI]

Thanks Don ! And thanks for the great machine work you did for me . Exceeded all my expectations

[2006FXDCI]

That motor has more than what the dyno showed. MPH shows that.
Good job Josh.

One thing ive learned this year is a dyno sheet doesnt tell the whole story of how a bike will perform at the track . There are many other factors at play . Pretty dyno sheets to show your friends at the bar are nice . Time slips are even better 

[pwmorris]

That motor has more than what the dyno showed. MPH shows that.
Good job Josh.

One thing ive learned this year is a dyno sheet doesnt tell the whole story of how a bike will perform at the track . There are many other factors at play . Pretty dyno sheets to show your friends at the bar are nice . Time slips are even better 

Bingo-

Don't drink the mph kool aid right now. Your HP is showing, which is sweet mph on the big end.
Motor or other factors at play...
60' is down, but thats OK for now. 60 is all that matters now with what you are dialing in.
60', 60', 60'!
60 equals ET in your situation at this point.
60 down, ET down...

[2006FXDCI]

Thanks Paul ! It was amazing the difference the suspension change made . It was a bit too soft , 60' times suffered but mph picked up . Today I set my shocks midway between the original setting and where i ran them on friday . Hoping to gain 60' time back and keep some of the mph . If theres anything ive learned from you guys its that 60' times rules ! Just experimenting with what i have right now to do the best i can on a stock chassis . 4-6" swingarm and air shifter are in my future 

[pwmorris]

I made a clutch and suspension change to my dyna and went out to the track last night to see if it made any improvements . My dyna has been wheelstanding pretty bad off the line so i softened up my rear shocks quite a bit to try and avoid the big wheelies . It felt very odd at first , my 60' times are a little slower than normal but my mph picked up like crazy . I ran 9 mph faster than ive ever went . Here are my slips for my 3 passes , im #875 . Left lane on the first pass and right lane on the last 2 passes

That is 10 Second MPH right there.
I got in the 10 Second Club with a 10.88 @ 122 mph so you have the HP!
Bring those revs up and work that clutch out of the hole or get a lock up, dial it in, and let the clutch do the work...
First 1/8 mile is where you need to focus..
7.50-7.80 1/8th means slow out of the hole, maybe shift points too low, gearing not pulling hard enough, bike weight, slow gear changes (with rpm/power drop and having to climb back into power band) and maybe other factors which you will solve, for sure.

Awesome progress-great with the skills you are learning now...

[2006FXDCI]

Paul , thank you for all the compliments ! So nice to hear that from one of the fastest street guys out there . I will attach a pic of my gearing , maybe you could suggest some changes ? As it stands now its tough to 60' it without shifting into 2nd . I go through the traps at the end in 5th gear right around 5850 rpm's . Thank you for any help , Josh

[pwmorris]

No wonder you are wheel standing out of the hole.
Aren't you running a Bandit Sportsman? Great clutch but it comes in instantly and grabs.
I run lower numerically gearing in first (I think around 2.95 but I have to check).

Basically, your clutch is instantly locking up, and your first gear is deep, which, combined with the torque of a built VTwin, is either gonna spin your tire or wheel stand if you hook up.
Result=Crap 60'-
You can work on finessing the clutch out of the hole, but without a lockup you are going to smoke that pack in no time.
Basically, I like to drive the bike out of the hole hard. You can hear the motor up and revving, then release the bike by clutch control, unleashing that store energy. A lower first gear helps keep the front wheel down as well and drive that bike forward...
I run a 5 speed so I can't help with overall gearing but I am around 3.50 overall-1:1 by 1/8 mile and horsepower all the way to the traps...
I would like to see you at a higher rpm thru the traps, maybe 6,200, depending on your powerband.

Also, couldn't tell for sure by the video, but are you rolling off the throttle to shift each gear?
This ain't the street!
Most of your shifting is in the first 1/8 so your rpm must be dropping big time with each shift.
You then have to start building up that power all over again with each shift, so basically you are fighting yourself uphill till you get a full head of steam on the big end.

[2006FXDCI]

Paul , would this tranny gearing be the way to go ? If so its a grudge box z that i need to buy . Im kind of stuck with my tranny gearing for now until i can afford a new one . I dump the clutch pretty hard when i leave thus the big wheelstands . I am running a bandit sportsman . Sometimes when my tranny is agreeing with me i will roll off the throttle as quickly as i can to shift without the clutch . Most times it will kick out of 3rd so ive resorted to fanning the clutch most times . Thank you for your input , i just wanna go in the right direction .

[Jonny Cash]

Getting the bike closer to the ground will help with the wheelie problem too, been going through some of the same  learning curve.  A lower center of gravity helped me a bunch as did lowering my final drive ratio.  I finally broke into the 1.60's 60' Friday. 

[2006FXDCI]

What final drive ratio are you running ?

[Jonny Cash]

What final drive ratio are you running ?

23/54 for a final of 3:38, its a 5 speed bike and I did the 2.94 first gear.  I probably could have went to a 55 rear for a final of 3.44. The front tire is back to just skimming the ground in 1st, but it yanks about a foot high all the way through 2nd.  I will find out what kind of 1/4 time it will run in a couple weeks, I'm going to the bagger race in NC and running street class.  Its been a long year of trial and error but I feel I am finally getting there.  A front end strap helped me quite a bit, got me lower and limits upward travel. 

[westcomb]

11.52 that's fast! .......... I'm around the same place as you and I also need to work on my 60ft .......... All of my pass's seem to be the same once you look at the 60 .....if I'm a tenth slower on the 60 I'm about a tenth slower at the end and so on .......... Looks like we both could use a lock up! 

My gearing is way off as well ......... no wheelies at the track unless I role off the line ..... I just blow the tire off! ...... on the street tho rolling and crack it open I stand right up! ..... Its fun to ride for sure!

Good luck to you I'll be paying attention! 

[2006FXDCI]

Thanks Westcomb ! I would love a lockup for my bandit amongst a ton of other goodies ! Swingarm , air shifter and a grudge box Z would be a great start . PM me anytime if you want to discuss anything , maybe we could help each other out . Josh

[pwmorris]

Paul , would this tranny gearing be the way to go ? If so its a grudge box z that i need to buy . Im kind of stuck with my tranny gearing for now until i can afford a new one . I dump the clutch pretty hard when i leave thus the big wheelstands . I am running a bandit sportsman . Sometimes when my tranny is agreeing with me i will roll off the throttle as quickly as i can to shift without the clutch . Most times it will kick out of 3rd so ive resorted to fanning the clutch most times . Thank you for your input , i just wanna go in the right direction .

I like it-
Lower first and a 1:1 5th, with an overdrive for high speed, relaxed cruzin'. Nice-
Not sure what that trans costs, but you could call Mark @ R&D, and see what a full treatment upgrade of your current trans would be. Similar ratios, back cut, and all the trimmings.

[2006FXDCI]

Paul , thank you ! Ive never heard of R&D . So they can change the gear ratios on my stock 6 speed tranny ? That would be awesome ! Baker wants $3400 for their grudge box tranny . Thats out of my price range right now

[2006FXDCI]

Paul , i called Mark from R&D . There isnt much they can do for the harley cruise drive 6 speed  . No one makes gears for them . They do offer a friction resistant coating and will back cut my gears but thats about all that can be done . With that said Mark said to try going from a 56t rear sprocket to a 54t to see if that helps tame it down some on the launch and help my 60' times .

[jam65]

I did the R&D treatment on my 6 speed and the back cut of the gears makes it shift like butter. Like Paul said, set your gearing up to pull higher rpms through the trap. That second gear shift may raise the front end but power through it and count on it to come down soft and you get ready to shift to 3rd. Have fun and take your time to experiment.