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Author Topic: Another Brick Wall.  (Read 30479 times)

Offline rhight1340

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Another Brick Wall.
« on: April 08, 2009, 11:36:55 PM »
Hey guys need some serious help here. I am 245 suited and have a little bit of seat time underneath me. But my scoot is lagging bad compared to the othr posts I have read. Here are my specs.
2005 70 inch wheelbase 530DRK Chain
Revalved shock
U -soft 190 shinko
17-45 gearing
2005 Stock motor 170 compression across the board
Muzzy sidewinder
Brocks  billet clutch Mod hvy duty springs
Remapped ECU +10% Fuel 75-100%TPS
MPS air shift with Auto shift box
Dynatek CDI Box with 2-step set to launch 5500-6500
My lites are good .069 to .157 Pro Tree
My 60's are weak 1.7's
1/8ths are  6.5' to 7.0's  
My 1/4 times SUCK 10.4 gimma Break I should in the 9.0's easy.
Whats going here? where am losing all the tiime, I have every pass videoed. The bike feels good launching stays down. I ve got pngel drag pegs almost at the axle. I am fully laid out at 100 foot easy.  i am shifting out at 10,800 every gear crossing line top of fourth. I started with 10 psi this weekend and launched at 5500, hooked good. I lined up after a big tire car made their pass right in ther foot print. Went to the pits raised 2-step to 6500. Bike stuck real hard and fell on its face. (Bogged real hard) came back raised air to 15 psi. Next pass back to launching and sticking good. Best pass 10.4. What? Are you kidding me. Either I suck at this or somebodies fu--ing with me and the timclock. Conspiracy right> LOL. Seriously what do you all think I am doing wrong. :cry:
 
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Offline Coryonbusa

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Re: Another Brick Wall.
« Reply #1 on: April 09, 2009, 05:41:47 AM »
Think you might be blowing the clutch out on the top end? Have you checked your stack height?
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Offline dave3.4

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Re: Another Brick Wall.
« Reply #2 on: April 09, 2009, 06:02:05 AM »
 sound like you need to raise your RPMS at launch and  slip the clutch a little more so it doesnt bog :thumb:  whats your MPH? at 1/8th and 1/4.
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Offline rhight1340

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Re: Another Brick Wall.
« Reply #3 on: April 09, 2009, 09:52:09 AM »
ok stack  height I did verify, set almost right 2.00 with extra steel placed in center of stack per advisement of board memebers several months back. Fibers were good no warped steels. If i hand clutch very little creeping. Dont like to hand clutch. That's why I went to a 2-step I want to pin it and go. compared time slips with another boarde memeber on hitting a brick walll and heres what were seeing
Mine                                            His
reaction .1576 Pro Tree             reaction--N/A
60'--1.7564                              1.747
330ft--4.5063                           4.319
1/8--67905                               6.404
1/8MPH--107.09                        117.80
1000ET--8.7277                        8.216
1000MPH--121.16                      N/A
1/4ET--10.4966                         9.763                       
1/4MPH--131.23                        145.39
Seems I am falling off  from the 60' Im losing power all the way through the pass. I am 25 lbs heavier maybe thats were its at. The bike sounds and feels good on top end, pulling hard, it actually sounds better on top end rather than down low according to a buddy that I race with. He stated bike sounds lazy down low. Ive got a 50 shot (dry) ready with spray bar and big Zex noid-triggering off window switch, buts thats only going to gimme MAYBE a second. That only gets me to 9.5. I wanted all I could get (as we all do) motor wise first, then spray. Would love a 9.7 right now.
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Offline GSXRTURBO1

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Re: Another Brick Wall.
« Reply #4 on: April 09, 2009, 12:58:21 PM »
Have you dynoed the bike? A/F ratio? Your low MPH tells me you're quite a bit down on power, did you make sure the throttle bodies are opening up all the way? Are you sure you're opening the throttle fully?
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Thomas

Offline rhight1340

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Re: Another Brick Wall.
« Reply #5 on: April 09, 2009, 01:16:21 PM »
I want to say yes, but the numbers dont reflect it. Somethings going on, Im not aware of. Like your suggesting, Im not getting the throttle open all the way or something. The power is just too far down. I havnt dynoed yet, Time and money just cant get enough. Maybe here this next month, then Phoenix air gets terrible along with the ensuing heat. Small window of opportunity out here to race consistintly for very long. Thanks for the input I am all over this throttle possiblity.
« Last Edit: April 09, 2009, 01:22:03 PM by rhight1340 »
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Offline dave3.4

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Re: Another Brick Wall.
« Reply #6 on: April 09, 2009, 06:09:23 PM »
Even with a two  step you have to slide the clutch a little unless you have a lock up :thumb:

 you need to raise your rpm and make sure you elbow is up when your sstaging it helps with making sure you get wot. Alot of times if I dont do that I think I am wot till I look at my slip then  realize I wasnt :thumb:
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Offline rhight1340

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Re: Another Brick Wall.
« Reply #7 on: April 09, 2009, 08:24:37 PM »
I listening to you the throttle issue, how about this R6 thrott. tube mod. sounds like that would help. Doesnt that shortn the WOT time? or am missing what that mod does. As far as slipping the clutch I stay away from that with the two step, I like to set it and nail it, maybe that's part of the problem, I tend to be a all or nothing. I tried to slip last week after starting to launch and she backfired, sputter when stepper kicked in again, it was a pretty nasty start to that pass.
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Offline dave3.4

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Re: Another Brick Wall.
« Reply #8 on: April 09, 2009, 08:57:26 PM »
The r6 throttle tube mod shortens the twist of the throttle to get wot faster and with less throw :thumb:

 The clutch thing I am talking about  I think is playing a big part in your times  simply cause your not leaving hard enough,which is were it counts the most. I  had pretty much the same set up as you minus the two step and I'm 225.  I would leave at 6500 and my 60' were 1.50. I think you said your 245lbs so your going to need more rpms to leave .

 Theres two easy ways of seeing if your  the problem or the bike is.Get it on a dyno and  tune it or let a TRUSTED  and experienced friend take it down the track and see what his results are. If your anything like me  the later part of that wont happen :D

 
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Offline dave3.4

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Re: Another Brick Wall.
« Reply #9 on: April 09, 2009, 08:59:49 PM »
also post one of your runs
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Offline rhight1340

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Re: Another Brick Wall.
« Reply #10 on: April 09, 2009, 09:07:09 PM »
I have beeen considering the latter. Hate being showed up if it is rider error. Damn pride thing.LOL After tuning with dyno Ill try again, if it doesnt feel right then or look right on the slip, then I will have to find a heavy hitter my weight to replicate all factors. Im looking through passes now I will try to post one later.
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Offline gnd111

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Re: Another Brick Wall.
« Reply #11 on: April 09, 2009, 09:14:41 PM »
Go 17/47 and launch at 6800 on the 2 step.  70" and your weight will be no problem.

What track?
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Offline rhight1340

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Re: Another Brick Wall.
« Reply #12 on: April 09, 2009, 09:19:33 PM »
out west Speedworld Surprise, AZ
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Offline rhight1340

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Re: Another Brick Wall.
« Reply #13 on: April 09, 2009, 09:58:54 PM »
Here's a pass this last weekend, excuse video quality my 14 yr old she's getting better at it. <embed width="440" height="420" type="application/x-shockwave-flash" src="http://v5.tinypic.com/player.swf?file=9fxjt0&s=5">
<font size="1">Original Video - More videos at TinyPic</font>
« Last Edit: April 09, 2009, 10:05:44 PM by rhight1340 »
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Offline Kurt

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Re: Another Brick Wall.
« Reply #14 on: April 09, 2009, 10:19:14 PM »
<a href="http://v5.tinypic.com/player.swf?file=9fxjt0&amp;s=5" target="_blank" class="new_win">http://v5.tinypic.com/player.swf?file=9fxjt0&amp;s=5</a>
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Offline rhight1340

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Re: Another Brick Wall.
« Reply #15 on: April 09, 2009, 10:23:24 PM »
Thank you. I needed that. Looks like time got capitated was a 10.5 at 132MPH
« Last Edit: April 09, 2009, 10:25:46 PM by rhight1340 »
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Offline Kurt

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Re: Another Brick Wall.
« Reply #16 on: April 09, 2009, 10:25:16 PM »
 :thumb: 
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Offline cstraubs1

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Re: Another Brick Wall.
« Reply #17 on: April 09, 2009, 11:50:22 PM »
Sounds like your riding the clutch too long,or its slipping....hear the rpms going up & down till about the 120ft
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Offline tattooedfreakrider

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Re: Another Brick Wall.
« Reply #18 on: April 10, 2009, 06:06:55 AM »
do you have 2 steels side by side?
if so ditch that setup and go back to factory setup with steel/fiber
your clutch has real issues in that pass
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Offline GSXRTURBO1

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Re: Another Brick Wall.
« Reply #19 on: April 10, 2009, 07:39:16 AM »
Quote from: cstraubs1 on April 09, 2009, 11:50:22 PM
Sounds like your riding the clutch too long,or its slipping....hear the rpms going up & down till about the 120ft

I agree, and it also doesn't sound right at the upper RPM, I would get it on a dyno, I suspect your problem is 2 fold: the clutch issue, and low peak power... the power issue could be as simple as the throttle not being opened fully, or the A/F is way off... (I suspect the A/F ratio is off)

Good luck, please keep us posted  :thumb:
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Thomas

Offline GSXRTURBO1

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Re: Another Brick Wall.
« Reply #20 on: April 10, 2009, 07:42:31 AM »
Another thing to consider is that you are spinning the tire, at 70" if your suspension isn't right or any number of other things, you're going to be spinning the tire. Can you shorten it up some? I'd try that if you can, if your MPH goes up you know you've been spinning the tire excessively.

That could even be why the clutch sounds like it's slipping too much at the start, the tire may be grabbing and spinning, grabbing and spinning, etc.
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Thomas

Offline gnd111

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Re: Another Brick Wall.
« Reply #21 on: April 10, 2009, 09:24:40 AM »
Clutch slip almost all they way thru 1st and very slow rev...
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Offline rhight1340

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Re: Another Brick Wall.
« Reply #22 on: April 10, 2009, 09:31:11 AM »
I felt more wheel spin on that pass than clutch, BUT your rt I have a 2 steel set up which was questioned before I setup about giving pssible issues. Feedback was no. Dyno is Key to solving this power issue. I have large air box mod with Muzzy sidewinder and no real map per say for it. Tried winging it from here with +10% fuel which may be killing me with large air box mod from what I have been told. Needless to say scoot runs like a wounded duck looking at these slips. 10.4 best 134mph best I dont run PCIII equipment, Ive access for ECU reflash and beleive in it. BUT (hate that word) You gotta dyno or have a map to intergrate into ECU for mods. Thanks for all the input I do appreciate it and will keep posted progression of problem.
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Offline GSXRTURBO1

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Re: Another Brick Wall.
« Reply #23 on: April 10, 2009, 09:48:51 AM »
If you can't get to a dyno yet, try adding 5% fuel 100% throttle at 8K and up and see if MPH goes up...  if it does, keep adding 5% more fuel until MPH drops. It's not the best way, but it'll show if you're not getting the fuel you need. I'd also try another air box with the small box mod if possible.
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Thomas

Offline rhight1340

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Re: Another Brick Wall.
« Reply #24 on: April 10, 2009, 09:52:35 PM »
Will do. I think Ill soften the clutch a little with the spring setup. Throttle mod. it. May try playing with maps , if I can get some board members to share one that is suited for the Brocks air mod and sidewinder setup. Hint! Hint! If not its going to the tuner with dyno somewhere. I really beleive playing with the maps could get me close enough at WOT. Hurry up and wait, thats why this shit is my drug. Drives me insane.
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