Akrapovic Full System Dyno Chart

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wmcdonal said:
If I am reading the current posts correctly we have a few people here who think the PCV is the reason the dip is gone.

Others think the two tuned lines are for the RexXer flash followed by the final tune with PCV.
Unless my eyes are playing up it looks like dyno run 001, 063 and 064.
This would make me think that run 63 and 64 are both in a tuned state (After PCV tuning).
You should also take care when you compare dyno run 001, this is always the lowest value and does not reflect the true starting power.
Dyno operators should always do three runs to get a good base line.
Click to expand...

Pull 1,2,3 were stock everything. Posted pull 1 is representative of the first 3 pulls that is why it is displayed.
After that, it was air filter and Akra full system, ECU reflash and PCV. Pulls 63 and 64 were the last two pulls showing the range of last 3 pulls. Bike makes 179RWHP (rounded) all day long.

Commonwealth's dyno is a conservative dyno. What matters is the before and after on the same one.

My case/bike doesn't prove what gets rid of the DIP, it only shows that with full Akra, PCV and air filter, the dip is gone and more power everywhere. This assumes competent tuner.
 
Was pull 001 the strongest of the first three pulls ?
Most dyno operators use the lowest of the before runs and the highest of the after runs, this is not a problem as long as the first run was not way down on power.
Do you have a run to show power with the RexXer flash before you tuned with the PCV ?

Out of interest why didn't they use the RexXer to do all the tuning.

I don't know what would be gained by comparing the Akra, AR, Termi without any tuning.
The one that is closest to the standard pipe would work the best with the standard tune.
I would expect the Akrapovic to perform poorly with the standard tune.
The more that the pipe changes the character of the bike (better or worse) the greater the need for tuning.
 
wmcdonal said:
I don't know what would be gained by comparing the Akra, AR, Termi without any tuning.
The one that is closest to the standard pipe would work the best with the standard tune.
I would expect the Akrapovic to perform poorly with the standard tune.
The more that the pipe changes the character of the bike (better or worse) the greater the need for tuning.
Click to expand...

I get what you are saying but the AR and Full Termi un-tuned both show a biggish hole/plateau in the power (and tq) and to-date I've not seen a tune that has been able to overcome what appears to something to do with physical construction whether its the big bore of those pipes or the way they are constructed i.e right angle bends etc. So therefore I want to understand whether Akra have just perfected a better race pipe even un-tuned or whether the tuning is the thing that has managed to get rid of the hole.

ProTwin did a good job with Tuneboy software on the AR compared to how it ran just bolted on but there's still that plateau, albeit its smaller when tuned. Justin is adamant that its the shape/construction of the pipe that is causing it and fabricated a section that did away with the 'right angle' join. I'd like to see the Akra bolt-on performance to compare.
 

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wmcdonal said:
Was pull 001 the strongest of the first three pulls ?
Most dyno operators use the lowest of the before runs and the highest of the after runs, this is not a problem as long as the first run was not way down on power.
Do you have a run to show power with the RexXer flash before you tuned with the PCV ?

Out of interest why didn't they use the RexXer to do all the tuning.
Click to expand...

Assuming he used PCV and Rexxer so he could charge me more ;)

I don't have access to any of those runs to post. Only to say pull #1 was representative of the first 3 pulls. Not particularly low or high. Average.

I like the final result and haven't seen one better to change my mind yet, so I was happy to pay for the Rexxer and the PCV.
 
Dynos are dynos. Some read high, some lower. The real deal is the curve and how they tune the bike. Chad has done a great job with that map!

Mine was also dyno'd there and the graph was much lower than what I saw somewhere else. So, I agree that Commonwealth has a lower reading dyno... With what we have done to the motor and the Rexxer/PCV tuning Chad did, the results are amazing. He took away the on/off feel with the throttle also.

I am going to try and do some more dyno tuning to get maybe some different results as we are trying some cam timing changes. We will see what they result in, but my 1199 showed low numbers on Common's dyno, but I didn't have an 1199 that I wasn't able to pull or at worse, stay with and we had a STRONG 1199R in our region that was pulling well higher figures. I think the curve and how smooth it was and how well I can manage throttle proves the bike is done well. I worry less about the number results and more by what I compare against and it was solid.

I think you'll be happy with that graph as mine was well short of that figure. So, it should be a ripper!
 
wmcdonal said:
Was pull 001 the strongest of the first three pulls ?
Most dyno operators use the lowest of the before runs and the highest of the after runs, this is not a problem as long as the first run was not way down on power.
Do you have a run to show power with the RexXer flash before you tuned with the PCV ?

Out of interest why didn't they use the RexXer to do all the tuning.

I don't know what would be gained by comparing the Akra, AR, Termi without any tuning.
The one that is closest to the standard pipe would work the best with the standard tune.
I would expect the Akrapovic to perform poorly with the standard tune.
The more that the pipe changes the character of the bike (better or worse) the greater the need for tuning.
Click to expand...


I in fact have one without the PCV. The air fuel mixture was way too rich without the PCV. There was also a stronger dip and the response was more light switch. Chad is amazing with the tuning side and the PCV. I firmly believe that he COULD get a better tune with Rexxer, but the issue is that he provides results to have them make it happen. They do not have the ability to write the programs and such. I think only Rexxer can do that and it seems that they are somewhat conservative on the race side of things.

Chad can then get in with the PCV and dial it in more exact. All I know is that I have a before graph and what I saw of mine after Chad dialed it in, the results were WAY better. And better yet, could be felt SOOOOO much more than before. He really got it running better...
 
maybe if you have PC autotune that could be a nice starting point for autotune cause PC still didnt put Akrapovic map on their website for PC V
 
not related or stockholder of this shop, but some forum members might still be looking for christmas presents

(although i'd recommend going for the exhaust mod route with me and not wasting multiple thousands on this):

AKRAPOVIC S-D11E1-T EVOLUTION TI FULL EXHAUST SYSTEM DUCATI PANIGALE 1199 S R

sweet deal if you don't want to save 3 grand for trackdays, hookers and blow and ignore my signature ;)

#spammingformybusiness

.
 
Randall at Bellissimoto is also running the Akra at $3395. No affiliation.
 
Seems like a awful amount of work to get the akra working optimally. The pipe itself being $3500, installation, a tuning device, and then subsequent tunes to get it all in line is really expensive. Makes me think one can just go out and buy a brand new 600 jap bike for that kindof money lol. Granted, I still would really love to get this pipe but it it's evident a lot of 'kinks' still need to be worked out in regards to the best tuning solution. I'll wait a few more months for the more technically inclined to polish it all up before finally purchasing.
 
bane said:
Seems like a awful amount of work to get the akra working optimally. The pipe itself being $3500, installation, a tuning device, and then subsequent tunes to get it all in line is really expensive. Makes me think one can just go out and buy a brand new 600 jap bike for that kindof money lol. Granted, I still would really love to get this pipe but it it's evident a lot of 'kinks' still need to be worked out in regards to the best tuning solution. I'll wait a few more months for the more technically inclined to polish it all up before finally purchasing.
Click to expand...

Love the pioneering spirit, does your ass get sore sitting on the fence
 
1199 with Rexxer

This is what I personally got out of it with the Akra.
I gained a lot at mid-range
 

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