draggsxr750
Novice Class
Posts: 65
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posted April 16, 2004 07:15 PM
60 foot times
i am having trouble getting 60 foot times down past 1.8 cant seem to break out of rut
2000 gsxr 750 dropped one if front 47 tooth in rear 50 shot nos rider weight in lower 300lb range thanks
  
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BA
Pro
Posts: 1592
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posted April 16, 2004 07:33 PM
tell us how you launch, what rpm, is your head and chest leaning over the tank?
Do you have a strap on the front of the bike? Stock tire, stock pressure?
Is that back gear +1 or +2? 3?
Have you lowered the rear of the bike??
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zx12girl
Pro
Adrenaline Junkie
Posts: 1740
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posted April 16, 2004 08:26 PM
At what point are you at FULL throttle? I bet that you are not hitting the throttle stop fast enough or leaving the clutch engaged too long.
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RAC4IT
Needs a job
Bergie
Posts: 3009
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posted April 17, 2004 12:09 AM
1.8 is good for a 300 rider, your bike doesn't have the torque to get up and go much quicker than that unless you are leaving on the spray.
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AnotherRedHead
Expert Class
Posts: 348
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posted April 17, 2004 06:13 AM
no shit, big uns, Id be happy with those times on a little 750
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CrotchRocket
Moderator
Bracket Racing with Betsy
Posts: 8038
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posted April 17, 2004 03:03 PM
How long have you been DragRacing?...Get an extended arm, make it a 60"...
Go to Jason Millers test/tune seminars 
____________
Jason Miller StreetBike Seminars
*****DragRacers do it better, because they dont cut Corners*****
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draggsxr750
Novice Class
Posts: 65
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posted April 17, 2004 03:19 PM
rac4it launching at about 9 grand dumping clutch bike is stock geared 17 42 my bike is geared 16 47 thats what local racer told me to use bike is lowerd and straped and yes im tryin to spray as soon as i can sometimes wheelies bad so cant spray a lot thanks guys
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draggsxr750
Novice Class
Posts: 65
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posted April 17, 2004 03:21 PM
crotch rocket i have only been racing this year been to track about four times thanks
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ninja12
Needs a job
Posts: 3310
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posted April 17, 2004 08:01 PM
Don't take this the wrong way.
300# and 750's don't go together.
Small bikes don't have the torgue to pull you if you don't slip the clutch ALOT. try 6-7k and slip the clutch more.
crotchrocket is right an arm will help. You may want to try a bolt on
then if you dont like it you can go back and sell the blocks of most of your money.
good luck
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draggsxr750
Novice Class
Posts: 65
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posted April 18, 2004 05:47 AM
the bike has an arm on it sorry for got to add that last time streched 9 over
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draggsxr750
Novice Class
Posts: 65
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posted April 18, 2004 05:48 AM
bike is not stock bored and stroked as well 208 hp on spray its still my fault anyone think progressive nos is gonna help and any suggestions on which one thanks
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BA
Pro
Posts: 1592
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posted April 18, 2004 06:46 AM
do you think it may be spinning a little off the line? it's certainly possible, even with a bar and good tire.
stock clutch springs??
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CrotchRocket
Moderator
Bracket Racing with Betsy
Posts: 8038
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posted April 18, 2004 08:03 AM
Dude, you left out alot of details...All you need is seat time!!!
I recommend Jason Millers test/tune seminars!!!
____________
Jason Miller StreetBike Seminars
*****DragRacers do it better, because they dont cut Corners*****
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draggsxr750
Novice Class
Posts: 65
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posted April 18, 2004 02:35 PM
what details do u need went to track today never got out of 1.80 tried slippin and dumpin clutch dont think traction is much of a prob dumped clutch one time on the rev limiter didnt spin but wheelied bad lol go figure but it was my best time im new to everything be patient with me i truely dont have a clue best time bike has run is 6.958 in 1/8 mile not sure how bad that is but where im from its very fast for a 750 bike has beat several bigger bikes any ideas are help full by the way i am a body builder so yall talkin about my weight is a compliment have no fear lol thanks guys and girls
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draggsxr750
Novice Class
Posts: 65
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posted April 18, 2004 02:39 PM
2000 gsxr 750 bored 2mm stroked 1 50 shot nos stock clutch barnet springs rear metz road race tire super soft adams swing arm 3-9 arm set at about 8 or so dropped one tooth in front went to a 47 tooth rear i think its 42 stock 530 chain chrome wheels pingle air shifter with ign kill set to 40 milli seconds lower by links in rear set on middle hole and lower by tubes and straps in front power commander pc2 any thing else ya may need
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BA
Pro
Posts: 1592
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posted April 18, 2004 06:31 PM
granted, you're a big guy with a lot of mass to get moving but I'm curious....
anyone else think that a -1T and +5T is just a little too much? I mean, we're launching at 7-9k on an arm AND trying to use nitrous while still in 1st.
I might have stopped at -1 and +2 or +3. Thoughts???
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MadMike
Moderator
FEAR THE BLACK FLAG!!!!!!!!
Posts: 6579
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posted April 18, 2004 11:08 PM
you need to have some one video tape you. and then watch the video on slo mo! that will help you out! or have a buddy, go to the track with you! and help out with your setup and launch!
practice will make very good...
____________
200-MPH CLUB MEMBER!
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quikrr
Parking Attendant
Posts: 29
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posted April 19, 2004 09:22 AM
he is flying for lower 300 lbs you gotta go to 1000 or 1300.that's good times for a rider your size on 759.try not to deep stage on the light give yourself a little room to roll and might see 60ft's drop still slip the clutch though and use gas a little later.lot of your 60ft's being high has to do with using the gas early and getting out of it not to loop the bike.
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draggsxr750
Novice Class
Posts: 65
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posted April 19, 2004 12:27 PM
thanks guys very much
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draggsxr750
Novice Class
Posts: 65
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posted April 19, 2004 01:07 PM
the reason we went with such low gearing was bike was fallin on its face out of the hole the gear swap made about a half second on my et bike was running in the 2.0 range for short times great really helped bike out but lowered mph on runs go figure i have no clue do yall really think that is good see where i live i really dont have any comp around but when i go off i get spanked bad lol thanks guys
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quikrr
Parking Attendant
Posts: 29
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posted April 19, 2004 01:17 PM
the guys you go off to have more power and less weight.never be upset what you have is what you have but you probably run guys out your class because your bike is fast but weight vs power i bet they find you hard to bet.If i can help you any call Daniel 503-572-2396 I'm here 24/7.
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