Very nice. I was told by a few guys that were using them last year that Dragy was supposed to be coming out with a feature that lets you select 500 feet as a data point to make it even simpler to use. I had purchased one three seasons ago and in the area that I test phone reception (and apparently satellite reception) are both poor and it would not always work. Not the devices fault.

 

My Dragy has a 500ft option, I was using it two seasons ago so they must have updated it then. It was probably your phone that was the issue? I know with an iPhone they don't need any cell service to use the Dragy. I was in the middle of nowhere Canada this last April, had no cell service because my carrier doesn't offer it there but the Dragy still worked perfect.

I think this is a better discussion for the GENERAL FORUM than here in the MATRYX Threads?

Nah, its perfect right here, guys with the latest performance Polaris sleds need to know they can get a inexpensive devise for all of their testing and throw away the porta tree. We don't need the competition finding out, do we?

 

I think this is a better discussion for the GENERAL FORUM than here in the MATRYX Threads?

 

I figure if it's good enough for the Snow Outlaws it's good enough for me. I few fast guys from my area that I respect use them and believe in them. I will be buying one before next season. I was under the impression that you could select 500ft on the current version????

 

Mike, if you don't mind sharing what are you getting for ET in 500? On a good, hard tight track with no spinning... At hayday's last year Ron won the stock 800 class with a 5.14 and I know his stuff is fast. Obviously this was on grass.

 

I ran the 500ft feature on my 14 Indy and when I reset my phone I lost all those runs. I can’t remember what the et’s were but I think around
mid 5’s on trail type conditions. Yeah grass with a clay starting line should be quicker then any snow surface I would guess. Next season I’ll do 500ft testing with the 850.
I was looking at the Haydays 1000 stock runs and I think a good setup 850 could take that class.

 

Too many variables to say what’s Fast one day Vs the next. Some days if the tracks crap, 5.4 could be “fast”. My box was one of the early ones. When I returned it they were telling me the 500’ option was “coming”.

 

Lots of guys on here are using Dragy's to help test their sleds because ass dyno's don't work and your buddy your testing with is making changes to his sled as well and after a test run no one knows who's sled got better.

If you don know what a Dragy is, do a quick search. Basically its a performance measuring device that uses GPS to track every increment you need to know about your sleds acceleration. It then uploads the data to your phone. The fastest sleds on snow use these...
Somone on the forums here, says they are not accurate, hes never used one but said they are 2 seconds and 10 mph off? So I went to a NHRA drag strip with my car and made a ton of passes to compare the Dragy to actual time slips. The most it was off was .02sec in both 660ft and 1/4mile, most runs it was within .01. Reason it was off at all is the Dragy has a built in rollout where at the track its impossible for me to stage the car exactly the same as the Dragy.
View attachment 2134248 View attachment 2134249 View attachment 2134250 View attachment 2134251

(1) 2000 LS1 Camaro 1/4 mile Dragy vs dragstrip - YouTube

And the time slip after that pass.

View attachment 2134252

Agreed. I love my dragy, and it s accurate. AND, nice work with the Camaro. Low 11's is moving for a street car. Details on car? I see a 5.7 LS1.

 

Yup LS1 5.7, headers, FAST 92, just put a cam in couple weeks ago 226/230 112 LSA. Car is T-Top full weight with 3:42 gears, 4000 stall with drag radials.

I do see a price $159, currently. And some FAQ's. A claim about 1/100 of a second update intervals. But not much more. Very little technical info there. Do you have any more to share about it ? It's an interesting device though.

Quick Tech: Dragy GPS-Based Performance Meter - DSPORT Magazine

What if there was an easy-to-use, accurate performance timer for under $150 that could measure dragstrip and 60-130MPH performance? The Dragy claims to be just that. When it arrived at the office, we unboxed it and found a small black device in a package reminiscent of an Apple product.

dsportmag.com

That site has more info. I’ve tested the dragy at two other tracks and it’s always very close.

 

Can't recall exactly what it was called but there was a similar device way back in the late 1980's, I still have it somewhere, tried it against my Port a Tree and Radar gun and it was very accurate.

 

It depends on the device processing power as whether or not it's accurate. GPS must maintain and collect the data from the satellites to compute a position. Then the cpu must calculate the next positions and the GPS signals must be strong (higher satellites acquired usual equals better data). This is an inherent failing of GPS in general. On a lot of cell phones we use both satellites and known fixed tower positions (satellite references) where they can fix a position much more accurately. Is there a technical description somewhere on the draggy and the accuracy ? I'd like to read about it.

 

Yup, just search it. The Dragy will not validate a run unless it has enough satellites and a good signal. Also it won’t validate if the surface your on slopes downward too much, like going down hill.

 

I do see a price $159, currently. And some FAQ's. A claim about 1/100 of a second update intervals. But not much more. Very little technical info there. Do you have any more to share about it ? It's an interesting device though.

 

The Dragy device has builtin GPS tracking electronics, it does NOT use the phone GPS. The Smartphone connects to it thru a free app, and uses bluetooth communications to receive information from the Dragy and to control and display that information.

The Dragy does not require Cell service either, other than the download of the app and updates to the software onto the Smartphone. The Dragy itself has NO cell connection electronics or service. It has no physical connection to the snowmobile, other than a metal mounting plate, for it to attach magnetically, and possibly a USB power connection to recharge the 10 hour battery.

Here is their website: Dragy GPS based Performance meter Click on the FAQ tab for some additional details.

I have used something called a G-Tech in the past, when I was working to get an 8,000 pound FORD 7.3 Powerstroke Excursion into the 12.0 second mark. (NOT quarter mile, just 0-60mph)

 

Nah, its perfect right here, guys with the latest performance Polaris sleds need to know they can get a inexpensive devise for all of their testing and throw away the porta tree. We don't need the competition finding out, do we?
[/QUOTE]

Depends? Who's the competition?

 

Nah, its perfect right here, guys with the latest performance Polaris sleds need to know they can get a inexpensive devise for all of their testing and throw away the porta tree. We don't need the competition finding out, do we?

Depends? Who's the competition?
[/QUOTE]
We’ll definitely not you, you’re kind of a nobody 😂

 

I love my draggy and so do my buddies. No more guess work. I put Velcro on the draggy and opposite on all our sleds. One device and as long as I give them my phone during testing we get tons of data off each sled. To keep connection you need to keep the phone with the unit. So I Velcro draggy on sled. And just pocket the phone for each pass. It’s a great tool works awesome. Nobodies ear or ass dyno Can give this real time data this accurate.

 

Not going to throw water on the Draggy fire but I will say that there are times and they acknowledge it that Draggy won't have a good lock on the satellites and gives errors. It takes time for the acquire and time for a good lock on a GPS unit. If someone says they saw error rates higher than others have seen there's no reason to doubt them. If you know the technology and understand how it works you would agree. Otherwise it's a waste of breath.

And I'm seriously thinking of buying one just for the fun factor. I'd have loved to had one on the 900 when I ran it on the North Bay shaved ice years back.

 

Yes but the Dragy has a fail safe, it will not validate a run unless it has a good lock on enough satellites, so essentially it is error proof.
Out of the hundreds of passes I’ve made using it not once has it given me any reason to believe it’s been not accurate. I’ve seen NSSR timers, drag strips and radar give out bad numbers. Smoke, snow, dirt will all mess them up but not bother a Dragy.
I will doubt someone like northstarrick that says they are inaccurate but he has actually never even used one.

 

On mine once it’s locked and validated I believe it to work very well. Like I mentioned we switch it from many 850s and when we race them (minus a fluke for bad or wonky start ) the sled that the draggy said was fastest wins

 

Finally... You get to your whole of reason for dragging in the Draggy thread to the Matryx threads? Your little obsession with Rick.
I reached out to Rick a week ago and he has been straight out busy working. I was hoping to bring him some sled work soon and he said to call him back in 2 weeks to see where he's at, at that point.
The fact he didn't tell me to bring my shit right over tells me he is busy as hell. "Just like me"

I'll speak this for myself. Not going to put words in Rick's mouth that he hasn't said.
I think coming here to argue with a guy that spends all Winter tuning one sled as he fixes hundreds gets old after a while.
With the sledding season over I'd guess he has less time to come here wasting time with this?
Just my guess

 

Finally... You get to your whole of reason for dragging in the Draggy thread to the Matryx threads? Your little obsession with Rick.
I reached out to Rick a week ago and he has been straight out busy working. I was hoping to bring him some sled work soon and he said to call him back in 2 weeks to see where he's at, at that point.
The fact he didn't tell me to bring my shit right over tells me he is busy as hell. "Just like me"

I'll speak this for myself. Not going to put words in Rick's mouth that he hasn't said.
I think coming here to argue with a guy that spends all Winter tuning one sled as he fixes hundreds gets old after a while.
With the sledding season over I'd guess he has less time to come here wasting time with this?
Just my guess

I'll translate this for you:
Battlestorm is doing a lot of testing so he can provide accurate information. He isn't being paid to do this.
Rick is a known BS'r. Plus, he makes a living by selling to gullible people like you.
He often provides wrong information.
When this is pointed out, gullible people like you insist on defending him anyway.
If seeking truth is called an obsession, and demonized, then something's wrong with your thinking.
Misinformation must be revealed for what it is, not defended by a blind supporter like yourself.
You talk a lot about helping others to learn.
Maybe you should be just as concerned with providing factual, truthful information.

 

Already moved to the General Snowmobile Forum. - There is a redirect in the Matrix one temporarily for 30 days.

 

The thread should never have been moved. I just wanted to establish the Dragy’s credibility then show data I have from spending weeks testing and tuning a 21 Matryx 850. Maybe I should just start another thread on that, or should we move this back to the Matryx forum?

 

Let's leave it here and see how it pans out. Lots of these threads get blown up by the battling of whomever anyway. I can see this one going that direction now too anyway. If you can keep it on topic then it'll stay open. Otherwise it'll end up like all threads that end in name calling and arguing.

 

Maybe something should be done about the guys that are name calling?

 

 

Back on topic...
The Dragy sounds like a good affordable tool for the guys real serious about fractions of a second.
Are there more accurate and more expensive timing tools out there? Probably, but frankly in my opinion not worth the argument from where I stand.
Yes, I'm not the straight line guy that lives to line up for bragging rights so owning a Dragy or any other timing tool so far in my riding career hasn't been a need.
I realize that for the serious straight line racing guys that in my opinion are a little uptight about this stuff the Seat of the Pant's judgements are laughable.
I'm 6'5" and 285lbs and pack 20 more pounds of luggage in my tunnel bags. So I don't have the build to be a sled Jockey and I never will.
Seat of the Pants Yank and Stank is real enough for me. Beyond reaching for the fraction of the second I know when something works.

 

The Dragy is for people who want the most performance out of their machine. The average guy who buys a trail clutch kit may not care what the sled is doing as long as it at least gives the feeling that it’s better then stock and that’s just fine, nothing wrong with that.

 

You may be right in saying the Draggy helps you get the absolute most out of your machine if the user is the type to spend hours looking to achieve straight line fastness through trial and error of small tweakings. Most aren't out there tweaking their mapping on their own though in my opinion. If straight line racing is your thing and being beat in a straight line by a half a sled length hurts your ego badly then I guess getting every little millisecond out of it is a must then putting in the time with a Dragy or another timing tool is a great idea. It's more of a straight line racer thing in my opinion. Not saying there's anything wrong with that but to shit on other people that don't fall into that category is kinda F**KED UP if you ask me.

Maybe some guys Seat of the Pants feel for pull and power isn't as keen as others. Some people are easily fooled with placebo products so I guess to some extent I get why insinuating that seat of the pants doesn't work. I've bought Clutch Kits that have sucked. Pipes that have sucked. Clutch Weights that have sucked. I've also bought 850 BMP Stage 0 kits that really sucked. On the flipside, I've bought and used Pipes that have worked, Clutch Kits that were better than others and have played with clutch weights that I've found work better than others with different clutching. I guess maybe some people don't know when to trust what the seat of the pants tells them? My Battlebuddy and his friend Patsy can run their flaps but my ass knows when something works because I get a Giddy feeling inside when something rips and adds power. When I spend money on performance products and I'm left scratching my head wondering if I feel anything at all from it I trust what I feel and know it sucks. Some things suck bad enough that with an hour of riding you know it was a step in the wrong direction. When in question a few old school line up runs with a buddy can let you know if your ass dyno is on track or on the wrong track. So maybe some asses don't have a clue but there's a lot of us out there that don't need a Dragy to know when something works or doesn't.

I'll say this too. Some care about tuning for 600' or 1000' and tune their whole sled to not be beat in short quick blasts on flat straight surfaces. "Boring to me but to each is own"
I prefer to ride all day in all kinds of conditions. There is a difference between playing at the lake all day and hitting the woods.

 

I just noticed one of my runs from last weekend was not validated, I think this is the first time I’ve had this happen. It says Invalid and low satellite, my guess is I turned it in right before I staged the car and didn’t give it enough time. Typically it takes 30 seconds or less to connect. Even though it was still within .02 or less on that run.
Dragy has a leadership board that lets you submit your results to. They will not accept an invalid run. It would be fun to get a Dragy results board setup for sleds..

 

The Dragy shows g forces, which is an awesome feature. It really helps with clutching, tuning the ecu, and just to compare for consistency with other runs. You can’t see this with a porta tree or other similar timing system. Does anyone see what’s wrong with the circled areas in my g force graph? Those are where the car made the 1-2 and 2-3 shifts and there is a g force dip before the shift, meaning I have the shift points set too high, the engine was nosing over and not pulling. Paying attention to AFR, listening to the engine and driving I didn’t notice this by seat if the pants. So next time back I will tune the ecu for lower shift points in hope to smooth it out and drop ET. This works with sleds as well when changing gears, clutching and especially tuning.

 

So could a Dragy be used to see if a matryx 850 is faster in ethanol mode or non eth mode?

 

Yup, it definitely can and I think I have some runs from doing that with a 850 Matryx but since the thread is in the general forum and not in the Matryx I guess we will keep more on topic.

 

The three of you have problems. Keep it clean and threads won't get locked or deleted. Pretty simple actually.

 

I'll try my best to ignore them. I realize it isn't fair to others to have to read the crap that we argue about.
I'm an easy guy to get along with but these two definitely rub me wrong and bring out the worst in me.
CHEERS to better reading for a while!!

 

This is some good off season discussion. Unfortunately someones cheer leader cant STFU.
I have been using the dragy for 4/5 seasons now.
Major gains in clutching and gearing and as shown it shows the G forces.
IT WORKS…FTR!