starchild
Expert Class
Posts: 366
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posted July 06, 2009 02:59 PM
causes for lower mph
hey guys looking for things that may causes a 5-6 mph drop. i know bad air is one thing that can effect mph. but along with mph my 60ft has also drpped bike seems sluggish out the hole and i'm stuck at one45 mph. my ets. suck they are down 2to3 tenths. clutch may not be the issue. steels and fibers look great,i'm not one to slip the clutch so i dont go through clutches.custom map that pulled a 9.044 et in may cant do more than 9.30s now.any and all help -advice is appreciated. need help i'm lost never had this problem before.
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jay
  
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01smokes
Needs a job
Posts: 2243
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posted July 06, 2009 03:05 PM
how many miles or passes on it could the motor be getting tired?
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PayPal, vigilart22@yahoo.com
Email, artvgl@yahoo.com
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starchild
Expert Class
Posts: 366
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posted July 06, 2009 03:07 PM
probably 50 passes at most
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jay
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starchild
Expert Class
Posts: 366
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posted July 06, 2009 03:08 PM
less tham 2600 miles on motor
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jay
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kawasakijockey
Pro
Posts: 1876
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posted July 06, 2009 03:12 PM
I'm in SE Texas and I have been going through the exact same thing since May. It is the air here. Did the exact same last year. Might not be your issue though but could be if your map was set up on a cool,dry, and dense day.
____________
Get on the shortbus boys 'cause its time to get schooled.
2007 ZX-14
1.38 60ft
9.03 @ 149mph
8.95 @153 small shot n2o
8.68 @160mph 5lbs boost
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starchild
Expert Class
Posts: 366
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posted July 06, 2009 03:19 PM
thought about that also may take some fuel out this weekend. dont know where else to go from there
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jay
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JDC
Zone Head
Posts: 570
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posted July 06, 2009 03:24 PM
Climate/atmospheric change effecting your A/F?
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starchild
Expert Class
Posts: 366
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posted July 06, 2009 03:45 PM
it was definitely hot and muggy - would this effect 60ft times also?
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jay
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14nooby
Zone Head
Posts: 987
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posted July 06, 2009 03:51 PM
It is possible that it hurt your 60ft times but not likely. Your MPH is down due to the the air. I live in Florida and went to the track Friday and everybody was way off.
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starchild
Expert Class
Posts: 366
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posted July 06, 2009 03:55 PM
yea i think my 60ft off due to mental illness
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jay
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FIFTH
Expert Class
The Magnificent Bastard
Posts: 303
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posted July 06, 2009 04:13 PM
kawasakijockey, where in SE Texas are you?? I am in Wichita Falls now, but I am from down Woodville way, by way of Warren, Beaumont, Bridge City, Orange migration...lol....
and to the problem at hand, re-install your map.....it helped mine when the power felt off....
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starchild
Expert Class
Posts: 366
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posted July 06, 2009 04:22 PM
thanks guys i'll try every suggestion
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jay
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CrotchRocket
Moderator
Bracket Racing with Betsy
Posts: 8038
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posted July 06, 2009 04:34 PM
 Edited By: CrotchRocket on 7 Jul 2009 00:35
That's normal for zx12's & 14's during the summer heat and humidity...
Take the air filter out or take out the power commander if you have a stock motor!!!
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Jason Miller StreetBike Seminars
*****DragRacers do it better, because they dont cut Corners*****
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starchild
Expert Class
Posts: 366
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posted July 06, 2009 04:38 PM
interesting point i never ran my twelve with an air filter and never had this problem in fact my twelve ran good in the heat
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jay
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CrotchRocket
Moderator
Bracket Racing with Betsy
Posts: 8038
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posted July 06, 2009 05:12 PM
The 14's head is not as good as the 12's for MPH...
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Jason Miller StreetBike Seminars
*****DragRacers do it better, because they dont cut Corners*****
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smokinZX14
Needs a life
Posts: 10197
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posted July 06, 2009 05:14 PM
We are all having the same problem here in FL .. 98 Deg heat and 90% humditiy sucks ...It seems this year is much hotter and it came sooner than last year ... My 60s are off but not too bad, my MPH and ETs sucks ....
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Smokin Performance Cycles..
Tampa Bay , FL .. Brocks Performance Dealer ..
Gen 2 ZX14R Best ET 8.43 , Best MPH 164.95
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starchild
Expert Class
Posts: 366
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posted July 06, 2009 05:18 PM
thanks for the help guys i really thought my motor may be going.
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jay
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JDC
Zone Head
Posts: 570
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posted July 06, 2009 05:23 PM
Edited By: JDC on 7 Jul 2009 01:24
quote:
it was definitely hot and muggy - would this effect 60ft times also?
If you are running a tuned PC map of some type, that map is good for the general conditions when the tune was made. Cooler or more warm days/hotter days can change the A/F enough to make differences in quarter miles by 1/8 to 1/4 second, though the A/F was only effected by a few tenths change. I have seen a few bikes hit the jump off point in A/F, where up to a certain change, no noticible difference, and then .1 more change and loose 10 HP and notably more poor TTD.
I have three maps for general purpose: summer (hot) spring/fall, and winter.
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starchild
Expert Class
Posts: 366
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posted July 06, 2009 05:26 PM
it is a custom map made in april so it does seem you all are right on the money.
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jay
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smokinZX14
Needs a life
Posts: 10197
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posted July 06, 2009 05:32 PM
quote:
it is a custom map made in april so it does seem you all are right on the money.
You can try a leaner map and that should help some ..You can't get it all the ET and MPH back but you might get a little back ..Not really much you can do, engines just don't run well off hot air and water ..
____________
Smokin Performance Cycles..
Tampa Bay , FL .. Brocks Performance Dealer ..
Gen 2 ZX14R Best ET 8.43 , Best MPH 164.95
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kawasakijockey
Pro
Posts: 1876
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posted July 06, 2009 06:17 PM
quote:
kawasakijockey, where in SE Texas are you?? I am in Wichita Falls now, but I am from down Woodville way, by way of Warren, Beaumont, Bridge City, Orange migration...lol....
and to the problem at hand, re-install your map.....it helped mine when the power felt off....
I am in Lumberton.
____________
Get on the shortbus boys 'cause its time to get schooled.
2007 ZX-14
1.38 60ft
9.03 @ 149mph
8.95 @153 small shot n2o
8.68 @160mph 5lbs boost
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FIFTH
Expert Class
The Magnificent Bastard
Posts: 303
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posted July 07, 2009 02:27 PM
My sister lives in Lumberton. I'll have to holler when we head down that way next time....and bring the 14.....
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kawasakijockey
Pro
Posts: 1876
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posted July 07, 2009 02:59 PM
C'mon, there is a 1/4 mile strip 10 miles from here.
____________
Get on the shortbus boys 'cause its time to get schooled.
2007 ZX-14
1.38 60ft
9.03 @ 149mph
8.95 @153 small shot n2o
8.68 @160mph 5lbs boost
|
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