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SV650 Gen2 (03-15) Tech Info, advice or questions specific to the 2003-2015 model SV650.

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Old 04-10-2019, 09:52 PM   #1
Urban Kyng
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Power commander vs dyno tune

So I have contacted a few shops, and some say to get both done, while others say a dyno tune with a custom map is all that is needed. I wondering what experiences people have had with either doing both or just one.

Mods that I plan on doing are, full leo Vince race mount exhaust, velocity stacks, cam swap, and maybe bored throttle bodies. My bike is an my sv650s.

And I'm planning to swap the front sprocket to a 16 tooth because the bike seems like 1st gear is short and on the highway, the bike feels like the rpms are pretty high, and it feels like it falls flat on its face anything past 80mph.
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Old 04-11-2019, 03:10 AM   #2
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Re: Power commander vs dyno tune

I've no experience with using a PC, but to me it makes sense to do the mods you're planning (cams, exhaust etc) first, and then book some dyno time to see how the fuelling is after the mods. You can then dial in the fuelling etc as necessary using the PC.

On the gearing, it depends if you want acceleration or relaxed cruising. On stock gearing, a K6 is doing a genuine 6,000rpm at 80mph in 6th, and 6,700rpm in 5th, so you're nicely in the meaty part of the torque curve.

My own bone-stock K6S would quickly pull to peak power in 6th (a genuine 120mph, 130 on the speedo) on open roads with just a twist of the throttle, no need to drop a gear or crouch behind the fairing (I'm 170 pounds and 5'11" in normal riding gear). That's about all I'd get without crouching, but 120 is plenty fast enough for me on the roads.

Going up a tooth on the front sprocket will drop your rpm by about 6% and blunt the roll-on acceleration in the higher gears a little.
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Old 04-11-2019, 06:59 AM   #3
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At 6 foot and 280lbs(was 318lbs so I'm getting there)the bike does reach 130 but takes forever.

And I know with the 16th tooth I'll lose some acceleration, but here in PA I normally cruise at 90 in the interstate for about 40 mins.

But I will go for the dyno tune first and go from there.

Thanks for the response.
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Old 04-11-2019, 08:59 AM   #4
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Re: Power commander vs dyno tune

How are they planning on tuning it without the Power Commander? If they have a way of flashing the stock ECU, I prefer that to a Power Commander.
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Old 04-11-2019, 11:11 AM   #5
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One shop said they can custom tune the stock ecu, while a few other shops said that they need both to fully customize the map. I think they said tuning the ecu can only do so much, so a power commander is needed to fully adjust the maps and timing.
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Old 04-12-2019, 08:59 AM   #6
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Re: Power commander vs dyno tune

tuning the stock ECU with Woolich or similar can do everything a PC can do and more
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Old 04-12-2019, 11:12 AM   #7
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Re: Power commander vs dyno tune

Skip the PowerCommander... I am really not impressed with their reliability. I'have had them brick on my and customer support was HORRID and took months to get them to fix it.

Yoshi box, Woolich, TekaSFI can all be used to directly tune the stock ECU and be MUCH more reliable than a PC.
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Old 04-12-2019, 10:49 PM   #8
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I'll definitely have to check those out, the last think I want is for one to take a dump on me. Thanks for everyone's help
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Old 04-13-2019, 04:01 PM   #9
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Re: Power commander vs dyno tune

I could not find any other platform here in the USA other than power commander for my 2004 sv650S. It is Dino tuned using PCv
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Old 04-15-2019, 01:31 PM   #10
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Re: Power commander vs dyno tune

Quote:
Originally Posted by twag4 View Post
I could not find any other platform here in the USA other than power commander for my 2004 sv650S. It is Dino tuned using PCv
Woolich, Teka, etc let the dyno operator re-tune the stock ECU
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