mrsantafe
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posted February 10, 2007 10:56 AM
 Edited By: mrsantafe on 10 Feb 2007 10:58
16-51 gearing top speed???
What would be my top speed with these gears? This of course is on a zx12 with a 190 rear tire. thx
  
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zrexpilot
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posted February 10, 2007 11:08 AM
Just guessing I would say 155-160. Mine is geared 16-49 and it traps 147 at the limiter in 5th gear.
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mrsantafe
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posted February 10, 2007 04:44 PM
Thanks! I also have and extended ecu and one of VHills-brobinson od 5th and 6th gears.
So under the above assumption my bike might run 155 mph then I might actually hit 171 mph.
I'm getting ready to race everyones worst nightmare. A superlight 98 lb rider with -1 sprocket in front and +2 in rear with a slip on. He runs a 05 gixxer 1k. I only weigh 120 lb's more than him and his bike is probably 85 lb's lighter too.
His bike dynoes in the mid 150's and mine about 200 hp. I have a vast selection of gears and that is the steepest gear i have. I want to pull on him right away and continue to have a significant top speed advantage. We will running about a mile and a half.
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entropy
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posted February 11, 2007 01:13 AM
Mr S,
for a 1.5 mi race, why such aggressive gearing? Both of you will be into the limiter WAY before 1.5 miles and you'll bang the limiter before him unless yr OD gearing is tall as hell.
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shane661
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posted February 11, 2007 01:39 AM
Edited By: shane661 on 11 Feb 2007 01:49
171 in 1.5 miles? That is horrible. I ran 184 at Maxton (1 Mile) with bolt-ons...maybe 165 hp.
I am slow and fat (245 suited).
What are the ratio's on your gears? What is your peak rpm?
With 1.5 miles you should gear for 190+.
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psycho1122
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posted February 11, 2007 06:54 AM
quote:
171 in 1.5 miles? That is horrible. I ran 184 at Maxton (1 Mile) with bolt-ons...maybe 165 hp.
I am slow and fat (245 suited).
What are the ratio's on your gears? What is your peak rpm?
With 1.5 miles you should gear for 190+.
He wants to be sure he's out in front for the first mile of it................. 
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psycho1122
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posted February 11, 2007 06:55 AM
Hey mrsantafe; we should talk, I can help you with the math on this one.
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You say PSYCHO like it's a BAD thing!!
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zrexpilot
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posted February 11, 2007 08:20 AM
Eeeeeeeeeeeeeeeek !
Wait wait just wait a minute. 16-51 is not the gearing for 1.5 miles. With 200hp 16-51 will get you to top speed in about 9 seconds and will be about 1/4 of a mile. You need to gear that puppy wayyyyyyyy up. The gearing gods will help you out on that one. My guess would be18-46. for your weight.
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shane661
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posted February 11, 2007 09:37 AM
Also, if the gixxer guy is -1, +2, his top speed will be very low. A stock 12R should be able to take him out...considering the 20 mph difference in top speed! 1.5 miles is a long distance to race!!
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mrsantafe
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posted February 11, 2007 12:52 PM
Edited By: mrsantafe on 11 Feb 2007 13:02
I have one of those lower dollar radar guns. The gixxer guy ran 164 mph in a little over a mile run(-1 in front +2 in rear) he was about topped out.. Keep in mind we are at a mile high location, so are bikes make wayyy less hp than you fellas at sea level. This gixxer guy runs 10.00@140 mph in the qtr with a 122 mph trap in the 1/8th. This is with a stellar 1.84 60 ft. My bike has run a 10.03@142.6 mph with a 1.62 60ft.
If i run him with anything less than 16-48 gearing his bike will get out in front of me. I know this because a buddy of mine has a gxr1k with a kws built motor putting down a 175 hp on pump gas. These guys are very close except for in the beginning the flyweight rider puts a couple of 3 bike lengths on the kws built gixxer. When i run my buddy with 16-48 gearing with my bike I basically run the same as the little fella on his gixxer.
I want to smoke this guy! I realize without some type of power adder i wont be able to beat him easily. In the end i'm trying to figure out what gears to use. Then i'll spray his a-- and say good buy.
To Mr. Entropy, I get to pick the length of the race. I know he will be out of gear (thats my plan hehe). Will have it on film were hopefully im blowing him away by 20+ bike lengths. He will say he ran out of gear and demand a shorter race. Then I'll run him again and i'm sure it would be alot closer but the camera doesn't lie. The damage will have already been done.
then there won't be anymore shi- talking from this guy. I've been one of the fastest guys in this area(i know woopdy freakin do) but my bike broke down over a year ago. Here comes this self proclaimed "im king of the street" and no one can seem to beat him. I own a mild zx14 and its no comp for him. (although i haven't run him because i know better)
Hopefully, this sheds a little light on the situation!! thanks
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9.78@155.13 mph 1.71 60 ft @ a near mile high dragstrip
2006 ZX14 gone
2006 ZX10r (Wifes street bike)
2004 zx10r (her race bike)
2002 ZX12 (still kicking a--)
2007 gsxr 1k (race bike)
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shane661
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posted February 11, 2007 01:16 PM
Edited By: shane661 on 11 Feb 2007 13:21
It is apparent by your 1/4 trap speed that you will easily walk this guy down over 1.5 miles.
Who cares if he is a little in front of you at 1/4 mark? You will kill him by mile 1, and easily more than 20 lengths!
I can email you a spreadsheet that will calculate your top speed within a few percent. You just need to give me the ratios of the OD gears.
I ran 184 at Maxton on 17/46 gearing, with the stock rev limit, in 1 mile. You should be able to gear for about 195 with your hp, and absolutely smoke this guy. Or gear it for 190...then you are covered for a 1 mile race as well.
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dougmeyer
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posted February 13, 2007 03:50 PM
Don't over-think this. If you gear too short you'll be wasting time going nowhere in first and second- maybe banging the limiter and spending too much time shifting 1-2, 2-3, 3-4 instead of accelerating.
Just go 17-46 or 44 and you'll blow by him on the torque like he's paddling. This isn't an E.T. race. Remember, the trick is to spend more time going fast than going slow.
You'll cook him. 
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mrsantafe
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posted February 13, 2007 04:48 PM
Thanks for all the replies.
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9.78@155.13 mph 1.71 60 ft @ a near mile high dragstrip
2006 ZX14 gone
2006 ZX10r (Wifes street bike)
2004 zx10r (her race bike)
2002 ZX12 (still kicking a--)
2007 gsxr 1k (race bike)
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shiphteey
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posted February 13, 2007 08:36 PM
With that type of weight and gearing don't even THINK about trying to see this guy in the 1/4...hell even in the 1/2! But I promise you will catch up and pass before the mile is over....and while he's banging on the limiter you will be long gone and out of sight.
The gearing doug recommended was pretty good, hell I would think even stock gearing would beat him but 17/46 will ensure you have good acceleration and a significantly higer top speed than this gixxer. Like warp said you will be 180ish thru the mile. Why sit on the lmiter @ the 1/2 or 3/4 mile mark @ 150-160ish mph till 1.5 miles is up!?!?!?!
Good luck.....less than 100 lb jockey on a literbike....like I said forget about him jumping out on you, its INEVITABLE. Just get a good tuck, good clean shifts, WOT and you will start to reel him in, my guess is somewhere around 160 ish as he plateaus. You will still have to make up the distance but bro....his gearing will seal his fate in the type of race you mentioned.
Oh....and a "thanks" won't cut it bro....but a video of the race will!
A.
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mrsantafe
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posted February 14, 2007 09:52 AM
Edited By: mrsantafe on 14 Feb 2007 09:55
I'm going to have to spray him. I'll run a 40 or 50 shot any suggestions on when to use the spray and how long? (right away, wait until second gear, etc)
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9.78@155.13 mph 1.71 60 ft @ a near mile high dragstrip
2006 ZX14 gone
2006 ZX10r (Wifes street bike)
2004 zx10r (her race bike)
2002 ZX12 (still kicking a--)
2007 gsxr 1k (race bike)
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shiphteey
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posted February 14, 2007 10:02 AM
Edited By: shiphteey on 14 Feb 2007 10:05
40 shot with a 2.5 bottle...you can spray in 2nd if you are little lowered and not worry too much about wheelies....(3rd never wheelies for me on the button I have geared 17/46 thru 18/44). Hitting the button at the end of 2nd (around the 1/8 mile mark) lasts me till the mile....with it going a little soft at the very end.
40 shot is fine with stock injectors and fuel pump. Supersafe is colder plugs, timing taken out and rich. Didn't realize you were that high up elevation-wise. Still I weigh 120ish and I come thru 118 mph in the 1/8 here @ Sea Level....no wonder this gixxer guy thinks he's the shit! Spraying I come thru 120 mph with a little nos but that was a lil of 2nd and 3rd basically. He is running quicker than I am although total weight diff is well over 100 lbs between him and I so that would explain some of it. But still, props to him for running those times. His 1.8 60 ft to me says he can't come out hard because he fights wheelies, but I'm just speculating, compared to your longer, lower, heavier 12 running 1.6s.
A.
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turbobike
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posted February 15, 2007 10:56 AM
Let me throw in a few facts about MrSanta Fe's bikes and conditions.
It is a built Carpenter 1290. Big cams, big headwork. As far as TQ, it is gutless below 6k and HP peaks at redline of 12,200rpms (ECU extended). Has probably another 500rpms beyond current redline but w/o a good ECU addition this is all he can use.
MrSanta Fe suited is part of TFA.
We are at 5300' altitude.
As far as deadstop dragracing, MrSanta Fe will win hands down w/o NOS. But not by much.
Roll-on races from any speed above 25mph would be close. Too close imho.
The 'lil' guy on the GSXR 1k has ran a best of 10.00et at stock height and wheelbase. This is up here at mile high. Convert it to sea level and what do you get? You get the idea.......
Now if MrSanta Fe was able to achieve 200hp out of his ZX14 and that combined with the TQ spread across the board that it possesses, there wouldn't be a problem.
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mrsantafe
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posted February 15, 2007 12:50 PM
Stock height, stock wheelbase and 230 lb's suited i run low to mid 1.70's all day long. I know for a fact if i was lighter i could get better 60 ft's. I have to kill my bike to get those 60 ft's. The lightweight guy launchs anywhere he wants and typically runs 1.9's on average. His 10.00 run was with a once in a life time 1.84 60 ft. When he averages his 1.9's he still runs low 10 teens. I'm not cutting down his skill level im only pointing out the fact that 122 mph in the 1/8 th mile on an almost stock gsxr1k at 5300 ft is indicitive of his lightweight not skill..... by the way his back half he only gains 18 mph hmmmmm.
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9.78@155.13 mph 1.71 60 ft @ a near mile high dragstrip
2006 ZX14 gone
2006 ZX10r (Wifes street bike)
2004 zx10r (her race bike)
2002 ZX12 (still kicking a--)
2007 gsxr 1k (race bike)
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woppi
Pro
Posts: 1362
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posted February 16, 2007 04:26 AM
you can download geardata - but it is in german-language !!!
http://www.schmidt-sven.de/texte/geardata.htm
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1st TFA Member / Austria !
" if it has wheels or titts - sometimes you will get troubles "
2000 Limited ZX12R NOS
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turbobike
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posted February 16, 2007 10:49 AM
Edited By: turbobike on 16 Feb 2007 10:50
That is what pisses my off about these little hump jockies!!
These guys will run good times and some idiot in the crowd will post up and claim what a great rider this guy is.......but they don't look at the 60's and 330's. Aahhhhhh!!!
Jeez MrSanta Fe, you only get what in the 1/8th? 118?
At this altitude we need to gear a little more too compensate for any reasonable accelleration. Plus Mr SF's fat ass....
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shiphteey
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posted February 16, 2007 03:27 PM
Jeez....seriously you should pat yourself on the back....you and your 1290 run what my 120 lbs ass 1199 run and I'm on sea level in the 1/8 mph-wise!!!!
I'm not that impressed with him only gaining 18 from the 1/8 to the 1/4...to me that just nails the point home that you will get him.
Bone stock I was I think near 30 mph between 1/8 and 1/4.
Seriously now that I think about it....relax....let the 12 do what it does!!!!!!!!!!!!!!!!!!!!!!!!!!!
A.
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