Back from the Dyno ... Not Happy !!!

[Hobo]

09' Busa, Full yosh R~77, BMC race filter, NO powercommander or any other performance mods.

[Mikael H]

why are you not happy?
Mikael

[Blanca BusaLess]

why are you not happy?
Mikael

I ask same.
HP is right inline of what others are getting even w/pwr commander
but good gosh your torque is way up there ?
Something dont seem right on that ?

147.75lbs of torque ?

Way high from all I have seen ?

I hope others agree with me ?
is that correct y'all ?

who else is even getting above 120lbs of torque on their stock motor Busa ?

[Hobo]

Previous 09' Busa (now deceased), Full yosh R~77, NO Powercommander or any other performance mods.
Same Dyno, same time of year, same operator ???
I guess I wasted my money on that BMC !!

[Hobo]

Newton Meters, the conversion to pounds is about 1.3 something. converted to lb's in the second one is 115, first one 108

[Blanca BusaLess]

Newton Meters

Ok it was small could not see it.
So what does 147.75nm convert into lb feet of torque ?

Still seems fine ?

[crawler]

You could see 4.5 hp from differences in tire manufacturer, tire temp, chain wear, chain temp, chain lube or lack of, iat, how bike is strapped on dyno(i.e. tension), etc...

[Hobo]

The first Busa use to launch up on its back wheel of its own accord in 2nd @ 6k rpm & continue on thru 3rd. This one accelerates sharply but no lifting skyward.

The tuner said as I was leaving the shop "dont worry, you wont even miss 4hp", well guess what mister, I'm missing it !!

It might change when I flash the restrictors out. Other than that, I'm heading (pardon the pun) for a port and polish.

[Commuta_Busa]

like the tuner said... don't worry

[Tufbusa]

45 tooth sprocket!

Problem solved!

[EarlyBird]

45 tooth sprocket!

Problem solved!

or 46!

[Hobo]

That has been suggested, that might be the way to go ! what is standard 44 ?

Thanx Guys

[kairles]

think 43 is stock rear for the genII.

[Fast08]

How many miles where on the first one vs second one?

[Hobo]

Top sheet > current bike 1,056mls

Bottom sheet (deceased) 2,796mls

You reckon those miles would make a big difference ??

More teeth on the back doesn't that give you more top speed & less low down ?

[Got-Busa?]

Miles will help increase the numbers a little but how did you break both the bikes in?

[Dozerdriver]

Some motors just put out more HP from the start...break in makes a big difference too. Numbers look pretty good to me after the tq thing was cleared up...

[Blanca BusaLess]

Some motors just put out more HP from the start...break in makes a big difference too. Numbers look pretty good to me after the tq thing was cleared up...

+1 on that.
My bike was a slug from the factory .
Whereas others were in the 170s stock mine was 164.
Now after mods it's at 186 and change same as yours .
And like Dozer says some bikes are just stronger from get go no matter the HP.

I doubt the diff of 4 hp would make a diff really in 2-3 gear wheelies ?
What 190 will and 186 won't ?
Never been on a track but I think you would have to be and do many laps to honestly be able to see real diff between numbers on paper and in laptimes .
Your seat of the pants feel is connected to your head and this can play games with you as far as how it feels .

[Fast08]

Top sheet > current bike 1,056mls

Bottom sheet (deceased) 2,796mls

You reckon those miles would make a big difference ??

More teeth on the back doesn't that give you more top speed & less low down ?

Yes it does, we have ran 5 gen 2 busa's on the dyno and once they hit 2000 miles or more pick up an average 5 hp.

[Hobo]

The old one was run in what I consider poorly .... flat motorway for the first 250miles of its life (engine under zero load), I had to get it home from the shop and couldn't trailer it.

The second one was run in on a twisty mountain road of up hills and down (1,2,3,4 gears). After about 400miles I took it up the steepest grade I could find, with a fattest chick I could find, on the back.