| Author |
Message |
    
Froggy
| | Posted on Thursday, June 10, 2010 - 12:52 pm: | 
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Sifo, we are discussing the theoretical changing of the primary gearing to make it twice as tall as it is stock. According to my gear ratio calculator 1324's numbers are correct. 1222RPM at 55mph 
Oh and 1324, I know I am going out on a limb, but I do see it as very possible to do if I don't mind burning out clutches. perhaps a 1.00 ratio would be better. I saw an Aussie website that sold a primary gear set that made the XB12 taller, but I don't know the sprocket sizes or ratios off hand.
And in a vacuum, I wouldn't need to crouch behind the flyscreen. |
Sifo
| | Posted on Thursday, June 10, 2010 - 01:10 pm: |
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I guess I missed where we jumped into the theoretical.
In a vacuum your engine wouldn't run.  |
Froggy
| | Posted on Thursday, June 10, 2010 - 01:22 pm: |
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Damn you and your facts. Oxygen tanks strapped to the backseat piped into the airbox would fix that, for a few miles at least.  |
Vospertw
| | Posted on Thursday, June 10, 2010 - 01:48 pm: |
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Slaughter, yes - changing 12 gearing to 9. That was my first time there and the end of the front straight is faster for me than the 8/9 transition - though I was getting more comfortable by the end of the day. Big difference in style of track from SOW.
I'll definitely give you a shout - you can show me a better line around the track - especially through 4! |
1324
| | Posted on Thursday, June 10, 2010 - 01:52 pm: |
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Yeah, agreed Froggy. It could be done. My 'not feasible' statement stems from clearance issues. I believe the primary and cover won't allow swapping the gear ratios directly. With some custom machining, though...
Engine....won't...run...in a vacuum? Wait??? Kidding, kidding, kidding, I know that. I mean, how am I supposed to fit my bike and me in my Dyson? Now that we have been officially derailed...ha. |
Greg_e
| | Posted on Thursday, June 10, 2010 - 02:22 pm: |
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Swapping them end to end sure would make it difficult to drive around city streets.
That said I did find out one day that my 9r will depart from a stop in fifth gear without too much trouble. Was fiddling with something coming off the highway one day and left the clutch pulled the whole way. NEVER could have done that on my old Katana.
With the gearing swapped it would be like having a normal 9 in about third or fourth at a stop, so definitely workable for a salt flats run (if you could give it enough power to get up to a decent speed). |
U4euh
| | Posted on Thursday, June 10, 2010 - 03:05 pm: |
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Having the 12 to 9 primary swap is the BIG reason I started looking at the I4's. Did a trackday CMP and coming out of turn 9 WOT I was banging off the rev limiter before reaching the kink. But on the street, the bike is an absolute beast! |
Slaughter
| | Posted on Thursday, June 10, 2010 - 09:46 pm: |
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(I HATE 4!) - it's a weird one that pretty much if done PERFECTLY will only save you a half second a lap - but if you set up for turn 5 with a late entry and then lay down HARD to the right coming over 6, you can PIN THE THROTTLE for the next 20 seconds until you roll off and turn-in to turn 9. It takes faith.
I was there on a Friday practice with Hayden and Attack Kawasaki doing testing. Amazing to be laying over at about 130 in turn 8 when Hayden comes ripping by on your left at about 165 and then pitches it sideways going into 9!!! Happened about 5 years ago and I still think about it often!
(I'm NOT WORTHY) |
Vospertw
| | Posted on Monday, June 14, 2010 - 12:18 am: |
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I'm not worthy either, and even less worthy than you!
I never could get a good line through 4. Then in the first afternoon session, I'm watching guys drag their knee through it no problem in front of me so said "screw it, just roll on some throttle and keep leaning." Which worked great until the rear slid out, hooked up, snapped me out of the seat and almost off. Needless to say, my speed through 4 on the next session was not exactly fast... |
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