Here is my 03' busa dyno, i have some questions

[FLY-N-PUMPKIN]

This is what I have:
2003 40th Anniversary Hayabusa
Dynojet PC3R
Yoshimura Duplex w/carbon can
K&N filter
the rest is stock.

If I do the "small" airbox mod. will these hurt my torque? How much HP can one expect extra? Does that occur mainly on the end of the RPM range or through out?

I plan on installing the "smart" TRE (bike is soo jerky on and off throttle), 16/42 sprocket set-up, Muzzy fan and a bunch of appearence items.

What do you guys think?



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[BigBSBusa]

Am I missing the dyno results?

 

[FLY-N-PUMPKIN]

OOPPS!!

Should be there now!!!

 

[boribusa69]

From what I've seen with the air box mod you will lose some torque and the HP gain is not throughout, is at the end. By the way those are some good numbers you got there.

 

[FLY-N-PUMPKIN]

Why is there a spike in the A/F graph?

 

[GPW]

I have heard 13 to 1 is the fuel air sweet spot for the Busa. But those numbers look pretty good. That spike looks like a crack of the throttle. Same spikes I saw on my custom dyno run. When we activated the accelerator function on the PCIII no matter where I cracked the throttle that same 17 to 1 lean spike was gone. Very nice.

 

[FLY-N-PUMPKIN]

Thanks!!

 

[PaceMaster]

With those numbers-- you have a very quick and fast Busa--- Enjoy and ride safe....

 

[FLY-N-PUMPKIN]

I have not had a chance to take it to the track as of yet, but I'm looking forward to doing so. I still need to get some items required to allow me to race. Hopefully in the next month or so.

 

[ks-waterbug]

Why the 2004 date on Dyno graph?

 

[pward76]

(GPW @ Aug. 13 2006,18:03) I have heard 13 to 1 is the fuel air sweet spot for the Busa. But those numbers look pretty good. That spike looks like a crack of the throttle. Same spikes I saw on my custom dyno run. When we activated the accelerator function on the PCIII no matter where I cracked the throttle that same 17 to 1 lean spike was gone. Very nice.

I've never heard of the "accelerator function". Can you clue me in as to what that is, and is it on a PCIII-r?

Thanks!

 

[Bigbody]

It's only on the usb versions

 

[ZXALAN]

you need to get some fuel in that bike. I bet it makes 168hp on the same dyno if you get the AFR in the 12.8-13.0 range. Its lean as sh*t.

 

[Johnnycheese]

(FLY-N-PUMPKIN @ Aug. 12 2006,15:25) This is what I have:
2003 40th Anniversary Hayabusa
Dynojet PC3R
Yoshimura Duplex w/carbon can
K&N filter
the rest is stock.

If I do the "small" airbox mod. will these hurt my torque? How much HP can one expect extra? Does that occur mainly on the end of the RPM range or through out?

I plan on installing the "smart" TRE (bike is soo jerky on and off throttle), 16/42 sprocket set-up, Muzzy fan and a bunch of appearence items.

What do you guys think?

lets see PC3r on the bike and you want to add a bandaid due to the bike is not smooth and the A/F is not right.

I think you need to find a tuner instead