fast
Novice Class
Posts: 40
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posted June 29, 2002 01:33 PM
4 mph lost 1/4 mile???
how can that be posible one day 150.5 the other 146.5
no wind both day but cooler the day of 150.But still
the fuel injection should take care of setting and
only change 1,2mph?Have pc111r with muzzy map heard that
it was rich is it true? Even with 16 46 gearing the front
wheel dont leave the ground in second!On the cool day
17 46 will keep it in the air?Dam am mad. Whats the problem
is it the pc111? Once when i play with it half of the bord
was full of weird very big numbers in the 1000 all by
it self?If the bike would have pull like the day before
with the better 60' i would have done around 9.5 but
i only match the 9.6 of the day before.
Anyone have the same problem? Please help me before
i Fu..ng quit drag!!!thanks
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9.29@151
  
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Your Car Is Slow
Needs a job
Fuck Nitrous...Got Boost?
Posts: 4089
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posted June 29, 2002 03:07 PM
Bad tank of gas?
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Do not taunt happy fun ball!
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fast
Novice Class
Posts: 40
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posted June 29, 2002 07:45 PM
fresh gas at same gas station!!!Think next time will
try no pc111?just to see!
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mrfast
Expert Class
Posts: 114
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posted June 29, 2002 08:02 PM
like youre screen name!
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fast
Novice Class
Posts: 40
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posted June 29, 2002 08:17 PM
i should have jrfast and call you father !!!!
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kzz1
Zone Head
"Show me whatcha workin with"
Posts: 908
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posted June 29, 2002 08:38 PM
How are your clutches? Tempature (sp)?
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fast
Novice Class
Posts: 40
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posted June 30, 2002 02:54 AM
one thing i put a new clutch in it and was weird
feeling like busa lockup clutch so bad that i open
it to check if there was no broken parts,but one
thing found 1 steel that was a lot more blue then wen i
put the new fiber ? Could it be that ? the steel
was warp a bit? and made it slip?For the heat of the clutch
the day before 6 past one after the other and the last
was the best
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9.29@151
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Zhooligan
Moderator
Post Whore Extraordinaire!
Posts: 3829
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posted June 30, 2002 08:59 PM
Don't poopoo the temp change. The Fuel injection has some corrective capability but it does not make the air denser!
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To those who do not count their life in years, but in how life
has touched them in the past and how much it can hold in the
future; -- Youth is forever.
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hotrodninja
Expert Class
Posts: 121
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posted July 01, 2002 06:48 AM
I write the weather numbers down for every run in a log book. Quality of air is determined by not only temp, but humidity and barametric pressure. Less available oxygen means less power, no matter how good the FI system. I went 147 on a good air day, 142 on a bad. Those numbers are not even at the extremes. I'd say it's possible to have a 10mph difference if you went from max bad to max good air. I don't care, it's the air. As long as I can predict what the change will be, I can win money.
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Be consistent, win money.
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fast
Novice Class
Posts: 40
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posted July 01, 2002 07:20 AM
Yes it was hot and humid but still a almost stock
gsxr 1000 was getting 154 slip on and yosh box
one time my motor stop wen start rev for take off
and three times when comming back?
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TedG
Moderator
Posts: 8222
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posted July 01, 2002 03:16 PM
5mph between two different days is not a big deal. The FI cannot make up for lost air pressure. If it could there would be no power loss at altitude and where I am I lose 20%. There is a calculation called density altitude and that is the determining factor in power produced.
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Ted
2000 Green ZX12 sold
The fast color!!
Green 2005 ZX10R
2009 Concours Black ABS
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BA
Pro
Posts: 1592
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posted July 02, 2002 06:20 PM
 Edited By: BA on 2 Jul 2002 19:26
I don't care if you guys think I'm nutz, but this thread is just killing me so I gotta say something!! 
My MPH never varies more than 4 at the EXTREME's. 147.5mph is a crappy, hot and humid, missin' shifts, wheely-ing run,.....and around 151.5 for an EXCELLENT 55 degree, cool, dense, perfect launch and perfect foot shifting.
On *AVERAGE*, 80-90% of my runs are 147.5-150.
That's with anywhere from 70 degrees and low humidity, w/ average Barometer, and, up to around 88 degrees with medium-medium high humidity, and average Barometer.
Based soley on my experience and the Busa's I race with, I'd say that anything more than 3mph difference means somethings gone wrong and I'd be looking for the cause, but that's just me, because I'm anal! 
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krexken
Zone Head
Posts: 732
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posted July 03, 2002 03:02 AM
I agree with ya, BA. That's my range also. I'd think either clutch or map has gone nuts.
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hotrodninja
Expert Class
Posts: 121
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posted July 03, 2002 04:37 AM
So your saying that with wind and weather combined you don't vary 4 mph? You must not have much of a variance in the weather. It is true that if your running rich, it will amplify the difference, and if your running lean it will minimize it. I have three years worth of records with all the weather conditions that were present on every run, and I'd put the range at 5-6 (counting wind shifts) 3-4 without. My weather extremes in Iowa may be wider than most.
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Be consistent, win money.
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bagster
Zone Head
Posts: 630
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posted July 03, 2002 06:22 AM
altitude affect?
Wouldn't the barometric pressure have a greater "power gain or loss" affect at higher altitude?
If i remember correctly BA lives in california?
how high is your strip above sea level?(BA and FAST)
just curious.
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fast
Novice Class
Posts: 40
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posted July 03, 2002 07:50 AM
Me its almost sea level.Its just that almost stock gsxr1000
was runing 154 that same time so it was not all the weather
but my bike!Will have to wait to next race to found the
trouble!Posible cause found 1 steel a lot more blue than
the others,chain a bit to tight?like it with no lose
shift a bit bether.Maibe chain and weather together?
its hard to test things when a race every 3 weeks
and 4-5 runs a day!with no bike week....
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9.29@151
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your car is slow
Needs a job
Fuck Nitrous...Got Boost?
Posts: 4089
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posted July 03, 2002 08:36 AM
Hell I was down 2-4 mph in the 8th last night!!!
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Do not taunt happy fun ball!
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hotrodninja
Expert Class
Posts: 121
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posted July 03, 2002 08:38 AM
In my world almost stock GSXR1000's are lucky to run 142. I think there's more in the "almost" than you know. Barametric Pressure takes altitude into account. With pressure, humidity, and temp, an "effective altitude" can be determined.
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Be consistent, win money.
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hotrodninja
Expert Class
Posts: 121
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posted July 03, 2002 08:47 AM
One other thing I forgot to mention. NEVER do back to back runs on a ZX12R clutch unless you like buying new plates. The clutch will last over 100 runs with cool down time (at least 15 min), far far less without. In almost every instance I've heard of people wineing about clutch problems, they're out doing roundy rounds at the drag strip. You can fry a ZX12 clutch in one evening, no problem. After I re-read your post and see that you were doing back to back runs, I wouldn't doubt your clutch is part of the problem.
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Be consistent, win money.
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madmike
Moderator
FEAR THE BLACK FLAG!!!!!!!!
Posts: 6579
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posted July 03, 2002 09:32 AM
lol, I can smoke a clutch quick without hotlapping. man I should have bought clutch stock, when I got my 12. hehehh
Mad Mike
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entropy
Moderator
Posts: 8671
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posted July 03, 2002 09:59 AM
quote:
lol, I can smoke a clutch quick without hotlapping. man I should have bought clutch stock, when I got my 12. hehehh
Mad Mike
I'm with you, Mike! I can smoke a clutch faster than a Marlboro!!!
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fast
Novice Class
Posts: 40
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posted July 03, 2002 12:04 PM
the gsxr 1000 it was 144 mph!!!NOT 154!!!
sory about that!!!
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BA
Pro
Posts: 1592
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posted July 03, 2002 07:46 PM
Edited By: BA on 3 Jul 2002 20:59
Hey, FAST, you just might be on to something there. I'd bet that if a poll were taken, we've all seen timing systems that *mysteriously* add 10mph or something to someone's MPH rating every great once in a while, even if the ET remained normal for the run.
Well, I've seen it on enough rare occasions to at least be on the lookout for it.
I've never seen a 'mostly stock' GSXR1000 do more than 149mph though, and THAT was with a VERY good rider and I think the ET was something like 9.49. VERY respectable in my book. Pretty awesome with stock arm, tire and 'motor'. (just lowered w/header, PCIIIR and -1T)
Even at sea level, I'd really question that 154mph!!
Like you said, it may be more 'non-stock' than you think if he can duplicate that kind of mph!!
Anyway, to answer the question above, I'm near Dayton Ohio. Our weather changes every freakin' day. My *KNEE* can give a better forcast for rain than the local weatherman can!!! We are about 1000' above see level.
While our temp and humidity varies a lot, I'd say that we do have decent, but not perfect, wind blocking via a line of tall evergreen trees on one side of the track.
Keeping MPH's close together is easy if you are PHYSICALLY consistent. (meaning, bike prep,like the chain, tire pressure, etc., and Shifting, TUCK, shift RPM,etc)
ET's are the bitch to keep consistent on these little hellions IMHO. That's where the longer arm can really help.
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fast
Novice Class
Posts: 40
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posted July 04, 2002 12:10 AM
Have you guys already had trouble with chrome wheels
in staging beams? I have to put number paint on side
of it to not fuck up the lights!Again i made a mistake
on the 1000 it was 144mph not 154,for sure it would have been hard to belive!!!
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HotRudyRod
Parking Attendant
Posts: 10
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posted December 13, 2007 01:39 PM
I agree with hotrodninja, the clutch on 12Rs is pretty weak, more so in the early models than the newer but still you can feel how the clutch lever starts needing adjustment after a couple back to back launches, hell even in the burn outs. Any one has a spare used '02/'05 clutch basket and gear for sale? LOL
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'74 Z1 900 (sold), '74 Mach IV 750 (sold), '01 ZX12R, All of the above KAWASAKI!
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