I just looked inside my air box.

[OB_Kirk]

I can't believe that an engine could inhale enough air through that thing to make 180hp. When I do my exhaust and tune the FI system on a dyno, I'm getting a Motorhead air box. Anybody know if it will hurt to do the mini-mod while I'm waiting? I'm talking all the way out to the lip.

 

[OB_busTa Kaw]

I installed a muzzy and did the mini mod and picked up 9 hp. on the dyno however there is a stumble around 3k rpms but it could be due to the pipe I'm not sure. I ran about the same mph in the 1/8th but it was the first time I ran at this track so there could be a difference in tracks.

 

[OB_Johnnycheese]

Just do the big mod.don't waste your time to do it twice.

 

[OB_Kirk]

I don't have the money right now to do a Muzzy full titanium exhaust, a Motorhead air box, dyno time and tweak the FI system all at once. I also am not going to waste money doing it one step at a time and then having to go back to the dyno to tweak the FI system more than once. If there is no harm in doing the mini-mod, then I can have the satisfaction of whittling on plastic, the additional intake noise at part throttle, and maybe a horsepower or two, without spending any money. I just don't want to create a driveability issue. What do you think?

 

[OB_tinhead]

Johnnycheese I hate to disagree with one I have such respect for, but mine doesn't bog. All stock, not even a remap except small airbox mod and 4 long stacks. Or if it does bog, it even bogs strong! But really, I noticed no difference re bogging.

 

[OB_THE MOTORHEAD]

a map is getting made but in the meantime you use the tiforce map on the pc2 and set the idle circuit with a yosh at 1030-1100 and the pc2 at 0+1+2 i just did this with mine (after 30 damn pulls though).this morning i did some test driving and this is great.i had 150 hp stock added ti muzzy all long stacks and the airbox mod and got 165 hp and 102#torque and my dyno is stingy as helll.over 90#torque from 5200-9200rpm!over150hp from8,000-10,800!tried mixed stacks etc.lost2-3hp and 2#torque

 

[OB_Johnnycheese]

Tinhead you are not dissagreeing with me<I agree with you but every so often you get a bike that unless you map it it bogs.
Just keep in the back of your mind I am use to CYA.
Yes mine does not bog.

 

[OB_GSX1360R]

A word to the wise... 200 HP. Busas don't have ram air or airboxes...

 

[OB_THE MOTORHEAD]

because no one makes a big enough airbox and fuel tank to accept the bigger airbox.

 

[OB_Turbo Rick]

GSX1360 what do you meen by that statement?
I have a 200HP busa with ram air and an air box and it still produces positive pressure at speed

 

[OB_Johnnycheese]

Even with stock pipes you will have a little bit of a bog with the half mod

 

[OB_Kirk]

Well, Dr. Kirk the phenolic surgeon has emerged from the operating room. Performed a very clean mini-mod. No bog. Noise level is very close to stock. Seems to rev nice and crisp from any load / speed / gear. As far as power goes, I usually use the scales at the drag strip, the mile per hour lights, and a calculator to figure horsepower, but my skills are not ready for the drag strip yet.

 

[OB_GSX1360R]

TurboRick, I meant to say "Busas set up for the quarter don't have 'em."

 

[OB_GSX1360R]

Besides TurboRick, you don't get positive pressure until most races are decided... Therefore, it's useless in most situations other than to say you're running a filter...