Something isnt adding up

Nastee said:
Here you go then. If they like wheelies, going around town or light to light better set up than yours. From a dig they will take you no doubt. But at 40mph your set up with a taller tire and stock gearing shines bright & is just getting going (longer legs picture a runner with long strides against one with shorter stride). Stock in this case does not mean bad. the Gen 1 & Gen 2 have nearly the same numerical gearing & Suzuki did not do that by chance. They did a lot of research & selected this final drive ratio combination is a do all well kind thing; a fair balance between everything a street bike could be asked to do while not being to extreme one direction or another like a stunt bike with a 60 tooth rear sprocket or larger. Cool in the parking lot but not anywhere else on the limiter at 50-60mph. Did not see the 10" stretch that brings in tire width is it regular a 240, 300, 330 or 360 tire they are sporting which is weight and possibly a JACK SHAFT which all robs HP like the Grinch on X-Mass so not Apples to Apples if that's what they have. Like I said trade off looks over speed, handling, & HP.
Click to expand...
Great write up my friend thank you, they say u learn something everyday and I think I jus did

But no one runs no bigger a tire than a 200 in my group of riders

So if I understand correctly with what u stated, since we went from a roll on instead of a standing start, it put me in a good initial power band to hold my own with a geared bike, plus the stock gearing and taller tire aided in allowing me to stay in that powerband for a longer period which resulted in me being able to topside the win...

Makes sense to me
 
AsleepAtTheTree said:
Great write up my friend thank you, they say u learn something everyday and I think I jus did

But no one runs no bigger a tire than a 200 in my group of riders

So if I understand correctly, since we went from a roll on instead of a standing start, it put me in a good initial power band to hold my own with a geared bike, plus the stock gearing and taller tire aided in allowing me to stay in that powerband for a longer period which resulted in me being able to topside the win...

Makes sense to me
Click to expand...
Yes your set up for down low okay but by 40 you are well into making power midrange = to them & catching up by the second & top end with the taller diameter tire means the they have no chance to catch you it is a stacked deck. From a dig very different story but you will still have a higher possible top end speed as they have limited their top end for a quicker start. Trade off.
 
So is it safe to say I would be going backwards if I went 16/43...unless from a standing start of course

Keep in mind, this will be a 1/8mile bike

I have the sprockets on the bench now, this has me debating if I should wait to install
 
moko said:
16 front... What a stupid gearing for a busa

Do they think their on 600's
Click to expand...
So what do u recommend

250hp is the goal

Jus want a decent setup for a full exhaust tuned bike for the moment to bump with these guys cause that's what most of them run, give or take other things of course
 
sixpack577 said:
A gen1 stock is 17/40
A gen2 stock is 18/43

So a -1 front is common, and no big deal.
Makes for a quicker bike.
Click to expand...
I wonder why suzuki chose to go up 1 in the front

What advantage did it give if any

Does anyone know

Seems odd bc they went lower in the rear, given of course the Busa is a torquey bike which makes sense for the taller front but odd to me to go lower in the rear as a combo

Explanation anyone
 
AsleepAtTheTree said:
Great write up my friend thank you, they say u learn something everyday and I think I jus did

But no one runs no bigger a tire than a 200 in my group of riders

So if I understand correctly with what u stated, since we went from a roll on instead of a standing start, it put me in a good initial power band to hold my own with a geared bike, plus the stock gearing and taller tire aided in allowing me to stay in that powerband for a longer period which resulted in me being able to topside the win...

Makes sense to me
Click to expand...
I am a fan of the 17/40 and depending on fueling/tune have been 95 in 1st if I stay in it, 120 in 2nd but it fell on its face so tuned it to top 2nd at 115mph to avoid that. All with the 17/40 set up. This year have gone with 18/46 for power wheelies not just in 2nd or 3rd with a drop in the road. Look at a gearing chart to get a good idea of what is going on with what set up instead of hear say or guessing. c-10 runs if I remember correct 19/43 for increased range/gas mileage & crazy amount of speed wheelies at over 100mph in 2nd gear due to the tall gearing his bump technique & low body weight. Toad runs something like 17 or 18/47 with the 200/55 tire I also have been running the 55 tire about a 1 & 1/2 years and love the difference. Top speed is my thing so may go back to that stock gear ratio or taller eventually. I also love to wheelie so time will tell.
 
AsleepAtTheTree said:
I wonder why suzuki chose to go up 1 in the front

What advantage did it give if any

Does anyone know

Seems odd bc they went lower in the rear, given of course the Busa is a torquey bike which makes sense for the taller front but odd to me to go lower in the rear as a combo

Explanation anyone
Click to expand...

The overall gear ratio of 17/40 and 18/43 is very similiar, as are the gen1 and 2 engines.
The different sprockets for the gen2 are just what the design engineers felt was an improvement.
Keep in mind that an 18 tooth is a larger diameter than the 17(and 43 bigger than 40), so there is less chain wrap(stress) where the chain bends around the sprockets.
 
Man great info hear, thanks guys:super::thumbsup::banana::beerchug:

No wheelies here, all straight line as fast as I can in the 1/8

So with jus a full exhaust tune, 12" over and 200/50 tire, what do u guys would recommend for gearing in the 1/8 mile....with future plans to 250 turboed hp

I have 16/43 sitting on the bench as we speak
 
AsleepAtTheTree said:
I wonder why suzuki chose to go up 1 in the front

What advantage did it give if any

Does anyone know

Seems odd bc they went lower in the rear, given of course the Busa is a torquey bike which makes sense for the taller front but odd to me to go lower in the rear as a combo

Explanation anyone
Click to expand...

The transmission gearing is different between gen 1 and 2. That’s why the sprocket sizes are different.
 
moko said:
-1 may help in low speeds.... But not above 80mph... Especially high speeds...all that torque just overwhelms that gearing .... And the chain rap around 16t not good
Click to expand...
I ran 16/43 for years on a gen 1, like Six said -1 is no big deal. Bike topped out around 175, but it would get there in a hurry. Gear ratio doesn't change at higher speeds, the effect is linear.
 
Yes... It just feels to me, it runs through its torque curve too fast, and I have to shift to much
 
10+ over with a 250-280 lb rider on the street is already at the disadvantage. Like somebody else said earlier...good chance for too much spin. I think if they brought it in some it'd be a different outcome.
Also 250 to 280...30 lbs that's a big weight difference especially in a race.
Last factor...rider.
 
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