K1300S Akropovic/Power Commander Dyno Results [174 rwhp]

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K1300S Akropovic/Power Commander Dyno Results [174 rwhp]

Postby Barter on Fri Apr 23, 2010 2:33 pm

Just fitted a Power Commander V to my K1300s, which has also been equipped for several months with Akrapovic titanium full system and Evo race filters. I had it set up yesterday on a Dyno by a well regarded specialist in Yorkshire, Paul of Dynobike. The initial sampling run of 6 produced a best rear wheel bhp of 174 and 96 ft lbs of torque. So the system and filters obviously make a big difference.

The graph showed it to be running a bit rich at the bottom and lean at the top, so 80 miles on the dyno and several hours of adjustment got a consistent fuel/air ratio of (I hope I have recalled this right) 13/2, richened slightly at the top. The sampling run had showed that the fuelling was not too far out anyway, but the patient work of Paul on his Dyno produced some impressive results when it came to riding the bike afterwards. The throttle response is cleaner, the pick up instant and smooth, with none of the hesitation that occasionally accompanied big handfuls of throttle. All the banging and popping in the exhaust has gone and the vibration has reduced, as has the roughness and slight surging on a closed throttle. It is especially nicer to ride when exiting slow corners and can hold low revs in the higher gears more comfortably.

The final HP figure was 173.4, taken with an ambient temperature 8C degrees higher than the first sampling runs and the torque figure was unchanged. So, the PCV does not add power, but it certainly makes what you have more rewarding to use. The total cost, including purchase and fitting of the PCV, was £390 sterling, a very reasonable bill considering that access to the BMW carb bodies is not a swift job. I believe that this is the first K1300S fitment in UK, as Paul was unable to get any guidance from Dynojet UK, but the process does involve closing off the carburettor air bleed by crimping the tubes.

I am well satisfied.
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Re: K1300S Akropovic/Power Commander Dyno Results [174 rwhp]

Postby Drifter1 on Sat Apr 24, 2010 11:29 am

Barter
I'm curious on what your gas milage is?
2009 K1300S Light Grey Metallic, with heated grips, ABS, shift assist, on board computer, luggage rack, Remus slip on, K&N air filters and a CF rear hugger, more CF parts, link to my you tube http://www.youtube.com/user/cak1300sman
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Re: K1300S Akropovic/Power Commander Dyno Results [174 rwhp]

Postby Barter on Sat Apr 24, 2010 5:37 pm

I can't answer that question just yet, but I will do a proper check this week and post the result. As soon as I fitted the Akrapovic and race filters the gas mileage improved by about 20 miles per tankful. Unfortunately, US and UK gallons are appreciably different, so if I said I got 40 miles per gallon, as I did before the PCV was fitted, it wouldn't mean much outside of the UK. I will see what a regular tankful gets me this week. If it is much better than 170 miles, my present norm, I will be well satisfied. For a 19 litre tank, this works out at almost 9 miles per litre. With the bike completely standard I got just over 150 miles per tank, and I haven't changed my "brisk" riding style. Stately progress would improve this figure substantially.

The BMW range calculator seems very accurate, so hopefully I can get reliable figures.
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Re: K1300S Akropovic/Power Commander Dyno Results [174 rwhp]

Postby sundog on Sat Apr 24, 2010 6:15 pm

80 miles on the dyno !! WOW.
Congrats with the result. Thats pretty impressive power. !
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Re: K1300S Akropovic/Power Commander Dyno Results [174 rwhp]

Postby tobiaspalm on Thu May 13, 2010 12:36 pm

Do you have the map for your system? I have just got the powercommander v and hav´nt had it tuned yet.perhaps your map can work for my bike as well??

Tobias
BMW K1300R akrapovic exhaust, K&n filter, powercommander v, Quickshifter. Zumo 660.
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Re: K1300S Akropovic/Power Commander Dyno Results [174 rwhp]

Postby Barter on Sat May 29, 2010 5:54 pm

Tobias,
Sorry, to be slow replying, I have been away. The map is on the PCV, and presumably I can download it to the CD Rom and save it on my PC. If you still are not fixed up, I will do this sometime soon. Of course, this was a specific map for this individual bike, which is fitted with Akro Titanium full race system and Evo race filters. If your bike is fitted with standard exhaust and filters, this map will not be suitable.

The initial sample run showed my bike to be running a bit rich at the bottom and lean at the top, but it was not a long way out. Nevertheless, the dyno fine tuning has greatly improved the fuelling and general rideability, so I am no longer a sceptic about dyno work.

However, I do believe that you need a really good operator. Ask local racers for a recommendation.

Incidentally, in answer to a previous enquiry, I am getting about 160-170 miles to a tankful. Not wonderful, but this could be bettered if I was a little less heavy on the throttle.
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Re: K1300S Akropovic/Power Commander Dyno Results [174 rwhp]

Postby badger on Sun May 30, 2010 5:51 pm

Thanks for the post Barter - very interesting, and very tempting to get a PC.... I like your comment about it not giving more power but just improving ride-ability, which I completely agree with from having a PC on past bikes.
I've the evo filters (dual) with akrapovic exhaust, so a similar set up and I was guessing the bike had around 175 odd bhp.
Do you have the graph print out that you can scan/photo and post? Would be very interesting to see it, especially if you have a before and after. The tuner should have these saved if they have not already given you a set.
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Gone: K1300R
-- silk metallic with comfort package (sport wheels, heated grips, on board computer with oil warning, sport fairing, LED white indicators), alarm, gear shift assistant --
-- Hepco rear rack, R&G protectors all over, Akrapovic full system, Evoluzione dual air-filters, 1/4 turn quick action throttle, disabled full load stop actuator, a permanent grin --
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Re: K1300S Akropovic/Power Commander Dyno Results [174 rwhp]

Postby Barter on Mon May 31, 2010 7:31 am

Badger,
I will ask Paul of Dynobike to email me graphs and will then post them. I have a final graph in hard copy and will scan and post this if all else fails.

The operator found that fitting the PC was no easy task, as the K1300S was not built with accessibility in mind.
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Re: K1300S Akropovic/Power Commander Dyno Results [174 rwhp]

Postby Gimpyz on Thu Jan 06, 2011 12:23 am

Hello, I also have a 09 K1300S with the Akro system and am looking at adding filters and the PCV this spring. Would it be posible to get a copy of your map? It would make a great starting point for tuning mine.

Thanks, Hal
09 BMW K1300S Lt Gray Met, Full Akrapovic, K&N filters, PC V W/ Auto tune.
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Re: K1300S Akropovic/Power Commander Dyno Results [174 rwhp]

Postby Barter on Tue Mar 01, 2011 6:56 pm

Gimpyz, I apologise profusely for not replying to your post before now. It will teach me to change from windows to mac! Unfortunately, all efforts to download the map from my PCV to the mac have failed! Hope you manage to get it sorted. The services of a good dyno operator will work wonders - the best are to be found by recommendation from racers. I recently rode another, newer, unmodified K1300S and was surprised at how inferior the throttle response was compared to mine and how it hesitated when applying too much load. However, it was noticeably smoother, which might be down to evolution of the model on the production line.
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Re: K1300S Akropovic/Power Commander Dyno Results [174 rwhp]

Postby Gimpyz on Tue Mar 01, 2011 9:48 pm

Thanks for trying Barter.

I have purchased the auto tune unit as well. With a bit of luck maybe I will get the stuff on this weekend. It seems the general concensis for AFR is 13.8 down low 13.5 in the middle and 13.2 up high. I guess I'll find out.
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Re: K1300S Akropovic/Power Commander Dyno Results [174 rwhp]

Postby Cblast on Wed Mar 02, 2011 2:38 pm

Hey Gimpy, keep us in the loop on the PC-V with auto tune! I am going with a similar set-up and I want to know how to use the PC-V auto tune feature, thanks.
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Re: K1300S Akropovic/Power Commander Dyno Results [174 rwhp]

Postby Gimpyz on Thu Mar 03, 2011 12:10 am

If all goes well I am going to try to get it all installed this weekend.
One of my friends offered to help and is comming over. He works on cars, used to work for the BMW car dealer, but rides a Ducati. Hopefully it wont be that bad.
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Re: K1300S Akropovic/Power Commander Dyno Results [174 rwhp]

Postby akaps on Tue Dec 11, 2012 1:21 pm

Hi, I have a 2012 K1300s with a full system akrapovic exhaust system along with K&N filter and PC V with auto tune. Does any one have maps for this combo? Pl share...

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Re: K1300S Akropovic/Power Commander Dyno Results [174 rwhp]

Postby Bernardo on Tue Dec 11, 2012 2:34 pm

Hi Akaps, welcome to the forum :)

please, read this thread, perhaps helps you

"Living with autotune for pcv :-)" viewtopic.php?f=12&t=16978
K1300R Fiona (2012 - _______): viewtopic.php?f=38&t=18248
K1300R La Gorda (2009 - sold): viewtopic.php?f=38&t=10735 - viewtopic.php?f=9&t=11251
Me: .........viewtopic.php?f=8&t=13&p=68330
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