grdøg wrote:
> John Corliss wrote:
>> grdøg wrote:
>>>
>>> Is the Ness 'Big Shot' anything like the Lloydz 'Power Commander' or are
>>> they completely different items?
>>> Doesn't seem like a lot of people around here are that impressed with
>>> the Ness items more go with Lloydz and K-N filters when looking for
>>> performance. I don't have much of an opinion myself as I'm not that much
>>> into performance and am happy with the stock engines performance.
>>
>> My friend Joe put a Power Commander on his Harley and the thing fried
>> after a couple of years. He was on the road, so he yanked it and the OEM
>> ECM took over and got him home with reasonable performance and mileage.
>>
>> He swears by some other outfit's aftermarket ECM nowadays. Can't
>> remember off the top of my head which one it is, but I'll ask him again.
>> He says that he's seen a lot of those Power Commanders screw up since
>> his did, and he says to avoid them until they take care of whatever the
>> problem is.
>
> Hadn't heard that about the 'power commander' before and did hear about
> another unit that some say is real good but couldn't remember the name of
> it. Don't recall anything really bad being said about the "Ness" items other
> than most seemed to think someone else made something better that cost less.
> Again I'll ask are the "Big Shot" and "Power Commander" simular items? They
> sound like they may do the same thing but each site uses different terms to
> describe what their unit does so I'm not sure.
The Ness Big Shot:
http://shop.arlenness.com/productdet...roduct_ID+7140
and the Power Commander:
http://www.powercommander.com/powerc...x/default.aspx
are similar items in that they're aftermarket ECM addons. When they're
attached to your bike, they work through the stock ECM and take over
control of your bike's fuel system.
Here's from the Ness website:
"Arlen Ness Enterprises introduces their new Big Shot™ Adjustable Fuel
Injection Tuner. The Big Shot™ is a new load-based fuel injection module
that does not require any splicing or modifications to your motorcycle
during installation. Big Shot™ modules come pre-loaded with base maps
for different models which can then be fine tuned for each individual’s
riding style and bike with three buttons. Tuning is so easy that laptops
and dyno machines are not required to maximize your motorcycle’s
performance.
Utilizing the latest in load-based technology in fuel injection
performance, the Big Shot™ detects the exact amount of load on the
engine at any RPM and any road speed and delivers the perfect amount of
fuel to the engine for optimum performance. This is a superior design
over fuel injection modules that work off of throttle position. As
throttle positions can be the same at different speeds and with
different loads on the engine, with the same amount of fuel injected
into the engine in these varying conditions, performance can suffer. "
Here's from the Power Commander website:
"The Power Commander is a fuel injection adjustment unit that plugs
'inline' with the bike’s stock ECU (electronic control unit). The PC
uses original equipment style connectors, so no splicing or cutting of
the harness is required. Most installations take less than 15 minutes,
some as little as 5 minutes.
Changes are made to the bikes fuel and, in some cases, ignition
curves via the PC's onboard microprocessor. Using this technology we are
able to offer a large area of adjustment without making any permanent
changes to the bike’s ECU. Removing the PC returns the bike to its
previous stock condition. Each unit comes complete with software and
cable link that allows you to change between different maps or make
adjustments to a map file."
As you can see, they both do the same thing but claim to do so in a
slightly different manner (Ness uses a "load based" method and PC uses
an "ignition curve" based method.)
Power Commander doesn't make a module that works with the Victory
Touring Cruiser, so I don't have much interest in that company anyway.
I have no idea how the Ness module determines a bikes current load or
which sensors it uses (it does ignore the throttle position sensor I see
though) and how. This site provides a little more info on the subject I
suppose:
http://www.powercardtuning.com/support/load.aspx
but it's still vague. My guess is that the reason they avoid describing
how load is detected is to avoid competition and hey, that's the
American way.
By the way, it looks to me like the Ness unit is simply a re-branded
"Power Card" with a Victory specific mapping added to it. Really.
Compare the pictures of the two:
http://shop.arlenness.com/popuplarge...gShotPR_lg.jpg
http://www.powercardtuning.com/home.aspx
and I also note that Powercard doesn't sell a unit for Victory, probably
by special arrangement with Ness.
I hope that answers your question, but I have to tell you that I don't
use either of these products (yet.) 80)>
--
John Corliss BS206