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Discussion Starter · #1 · (Edited)
Carbon Akrapornvic Comparison (Videos/Pictures)

So I got the exhaust, power commander, and block offs last friday, and installed it all Saturday. All I can literally say is WOW! What a GREAT product! I have never heard of such a sound. The exhaust fits perfect, looks good, and sounds GREAT (obviously). I came from an R6, so im not sure if this really means anything to anyone, but when I had that bike I put a full exhaust/PC/Filter/Block offs and had it dyno tuned, and it pretty much felt the same. This exhaust LITERALLY made me feel a performance difference.

I tried my best to make a good before and after comparison video of the exhaust. I had to work with what I had, so this is the best I could do. I recorded it all on my Cell Phone (Droid Maxx), and GoPro HD Hero2. The reason being is because they both record sound differently. In all honesty videos do this exhaust NO JUSTICE. It just sounds amazing in person. (Sorry for poor videos, i was trying to get them done before I went to work last night, but it didnt go as planned)

Quick little story: When I first got the bike, no one was really impressed. This exhaust completely flipped that upside down. I have a friend who wants to get rid of his beloved R1, just so he can get an Fz-09. Another friend with a 600 gixxer feels the same way. They both LOVE it now. The sound has such a deep, crisp tone!

Here is the cell phone video, link to gopro video will pop up on the screen towards the end of the video. ENJOY!

(If anyone would like to see something specific feel free to ask!!!)




















I LOVE IT!!!
 

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How come you used the block off plates when you have the power commander? i was under the impression the block offs were an alternative to increasing the fuel to correct the ratio via pcv.. Cutting down the air instead.
 

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Discussion Starter · #3 ·
How come you used the block off plates when you have the power commander? i was under the impression the block offs were an alternative to increasing the fuel to correct the ratio via pcv.. Cutting down the air instead.
Oh geez. I cant get into detail because i dont know much. Im sure someone will chime in with some info. I did it because from what I know the PC WONT fix it the right way, just kind of puts a band aid over it.
 

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How come you used the block off plates when you have the power commander? i was under the impression the block offs were an alternative to increasing the fuel to correct the ratio via pcv.. Cutting down the air instead.
Without getting into the nitty gritty, to get the most accurate A/F reading into the PCV you have to eliminate the supplemental air that is drawn in through the AIS. There are other threads on the forum where you can find the details you are looking for.

But in a nutshell, you need to kill the AIS in order to get the best tune with any fuel controller.
 

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Great post, I like the comparison of two cameras for audio/video on the exact same runs. If it wasn't for that header, you woulda sold me on the carbon akro ...

Here I'm thinking I'm stoked to ride and rip town up, not knowing my lil pumpkin 9'er sounds that much like a whispering Vespa!

Thanks for the vid/pics!
 

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Discussion Starter · #9 ·
Great post, I like the comparison of two cameras for audio/video on the exact same runs. If it wasn't for that header, you woulda sold me on the carbon akro ...

Here I'm thinking I'm stoked to ride and rip town up, not knowing my lil pumpkin 9'er sounds that much like a whispering Vespa!

Thanks for the vid/pics!
Thanks man, just did the best I could do.
Not sure what's wrong with the headers... No one can see them from behind ?.

I get what your saying, but for the price, quality, and performance I can't complain!
 

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Without getting into the nitty gritty, to get the most accurate A/F reading into the PCV you have to eliminate the supplemental air that is drawn in through the AIS. There are other threads on the forum where you can find the details you are looking for.

But in a nutshell, you need to kill the AIS in order to get the best tune with any fuel controller.
Okie dokie... I actually just installed akra carbon and pcv as well, and ive been playing with multiple maps trying to clean it up with some success but not as well as i'de like.. Im glad someone mentioned this, marthy actually squared me away around same time i posted.... Im under the impression that plugging the left hose from air box is the primary fix right?... Could i get the result with the plug and not digging behind radiator to install actual plates?... Or is it necessary to install the actual plates in addition to the plug as well?

And my throttle is at 7% in the pcv bracket when it's completely rolled to off position... Should i somehow calibrate that to 0% ? ... Im new to pcv and learning.

Looked like the damn matrix to me at first.. Haha

Kaiser
 

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Great post, I like the comparison of two cameras for audio/video on the exact same runs. If it wasn't for that header, you woulda sold me on the carbon akro ...

Here I'm thinking I'm stoked to ride and rip town up, not knowing my lil pumpkin 9'er sounds that much like a whispering Vespa!

Thanks for the vid/pics!
I agree About header, i really wish they forged their headers like scorpion exhaust.. Or followed the lines of the bike, i have slight buyers remorse because of that, but i absolutely love the mid pipe and can.. So im happy with the 700$ spent... Im a metals fabricator and weldor.. Ive been considering trying to do something about it, but it's such a thin tubing schedule im afraid of a snowball effect with problems if i mod it.. Im definitely removing the springs and spring clips and tig welding those socket connections then getting pipes ceramic painted.. I will also trim the rear of the mid pip so can recesses into the bike about 1"
 

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Okie dokie... I actually just installed akra carbon and pcv as well, and ive been playing with multiple maps trying to clean it up with some success but not as well as i'de like.. Im glad someone mentioned this, marthy actually squared me away around same time i posted.... Im under the impression that plugging the left hose from air box is the primary fix right?... Could i get the result with the plug and not digging behind radiator to install actual plates?... Or is it necessary to install the actual plates in addition to the plug as well?

And my throttle is at 7% in the pcv bracket when it's completely rolled to off position... Should i somehow calibrate that to 0% ? ... Im new to pcv and learning.

Looked like the damn matrix to me at first.. Haha

Kaiser
You will get good results plugging that hose to the air box, the Graves kit actually comes with a sealed hose that slips over the air box tube. The reason I went with the block off kit is 2 fold. 1-- I was already in there installing the fuel controller. 2-- You remove a bunch of hoses and a pump that you don't need at all, also a little bit of excess weight. As for my decal pop, it is eliminated completely. The other way is a the flash that disables this AIS system. I have no experience with that but sounds like it would work.
 

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Discussion Starter · #13 ·
You will get good results plugging that hose to the air box, the Graves kit actually comes with a sealed hose that slips over the air box tube. The reason I went with the block off kit is 2 fold. 1-- I was already in there installing the fuel controller. 2-- You remove a bunch of hoses and a pump that you don't need at all, also a little bit of excess weight. As for my decal pop, it is eliminated completely. The other way is a the flash that disables this AIS system. I have no experience with that but sounds like it would work.
+1 on everything. No decel pop. AT ALL (the videos show). The install is rather easy too. I was conveniently doing the PCV at the same time too hah
 

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You will get good results plugging that hose to the air box, the Graves kit actually comes with a sealed hose that slips over the air box tube. The reason I went with the block off kit is 2 fold. 1-- I was already in there installing the fuel controller. 2-- You remove a bunch of hoses and a pump that you don't need at all, also a little bit of excess weight. As for my decal pop, it is eliminated completely. The other way is a the flash that disables this AIS system. I have no experience with that but sounds like it would work.
Have you plugged into the pcv at idle yet?... Does it show your throttle at 7% when it's conpletely rolled forward to "off" position?... I would assume that it should be zeroed when its totally disengaged... I see a throttle calibration in pcv but im not sure what the given value represents when i select the throttle calibration.. Seems like its giving you a minimum and maximum power level of some sort... I dont wanna touch it until i learn more.

Also... Some cliff notes on the gearing calibration would be appreciated.

Im guessing i could reduce engine braking by distributing more fuel up the rpm bracket from 0% (or in my case, 7%) throttle bracket.
 

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Which pre-made pcv map would be most similar to the akra carbon as a base map to start with?... Graves?
 

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Discussion Starter · #16 ·
Which pre-made pcv map would be most similar to the akra carbon as a base map to start with?... Graves?
OK here is what we went with: http://www.powercommander.com/power...name=Yamaha&mdlid=635&mdlname=FZ-09&yrid=2014

We used the "Akrapovic Full Exhaust System (insert removed) stock air filter".

Its only been 3 days and a few hundred miles. I can say with confidence I feel a performance increase. The throttle (to me) feels a LITTLE smoother with the on/off. I see no discoloration or anything in the headers. I can't get enough of it.
 

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OK here is what we went with: Welcome to Power Commander Motorcycle Fuel Injection Tuning Module

We used the "Akrapovic Full Exhaust System (insert removed) stock air filter".

Its only been 3 days and a few hundred miles. I can say with confidence I feel a performance increase. The throttle (to me) feels a LITTLE smoother with the on/off. I see no discoloration or anything in the headers. I can't get enough of it.
Did you actually remove the insert in the akra carbon or is that just the map you went with while using the carbon and baffle installed?

And who is "we"?
 

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Discussion Starter · #18 ·
Did you actually remove the insert in the akra carbon or is that just the map you went with while using the carbon and baffle installed?

And who is "we"?
Sorry. Yes the baffle is removed. And I mean me. Its just the fact that my cousin was loading a map to the power commander while I was putting everything back together haha
 

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Im using graves map, i dont have ais blocked off yet so its still popping, but i think as far as the id of the pipes are concerned, graves is close, and it feels like it pops the least of some of the others i tried, even though akra titanium has same headers, the "mid pipe/can/cat" looks similar to stock breathing so i wanted a map with similar pipes straight out... I wish i knew the inside diameter of the other exhaust systems... Can't seem to find specifications on them.
 

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Discussion Starter · #20 ·
Im using graves map, i dont have ais blocked off yet so its still popping, but i think as far as the id of the pipes are concerned, graves is close, and it feels like it pops the least of some of the others i tried, even though akra titanium has same headers, the "mid pipe/can/cat" looks similar to stock breathing so i wanted a map with similar pipes straight out... I wish i knew the inside diameter of the other exhaust systems... Can't seem to find specifications on them.
If I had to guess, I'd say the diameter is the the same for all exhausts. Could I be wrong? Yes, I probably am.

Did you try the map I suggested? You might find it better.
 
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