Would you like to see info like this on Performance Products?
- Thread starter joey@bmp
- Start date
This is something that would be very informative for us customers if you did a stock vs yours. I know with the skidoo single ring pistons there was allot of builders saying upgrading to a dual ring got rid of the power fade????
I have to get repeatable runs before I'll believe the results. This run is holding the motor at the same rpm for 35 seconds the repeatability is every second for the 35 seconds. The industry standard is to just sweep though the RPM and see what HP you can peak to. Usually these runs are only 10 seconds long and only at each RPM for a blip as it travels through. We have a great facility where we can do way more than just the standard sweeps. On this one I was trying to show how the pipe will hold or fade as it got hotter. We do a lot of different types of testing. This is one of them. I appreciate your input and will use it to determine what I post in the future. Sometimes too much info confuses people.
P
pura vida
Well-known member
LOL! ive been saying this for quite some time now
but all the brand loyal guys are just going to make excuses about why they dont...and blahh blahhh blahh...ohh and btw if you ask for dyno charts on turbos or big bores your going to get flamed
keep up the good work bikeman, going to order some of your pistons and a pcv from you guys this winter...
What I miss in all advertised dyno sheets is elapsed time between full throttle and full Power!
A guy I spoke to said that normal stock 800s usually take like 10-20 seconds to reach full Power...... 150 Horses are plenty if I just can have them any time I want.
A guy I spoke to said that normal stock 800s usually take like 10-20 seconds to reach full Power...... 150 Horses are plenty if I just can have them any time I want.
R
rmkMatt
Active member
Thank you for your explanation. I understand what you are trying to show and I applaud you for exploring that as well as publicizing your test. I also believe you do several test to get a good solid reliable sample, I just want to see it too. I don't pretend to speak for the others on the board, I like to see a few runs so I can decide for myself that the numbers are a good sample. I just like to analyze numbers that pertain to things I like.
I think this is a great idea, BUT... essentially worthless unless compared to stock. Since people aren't used to seeing this kind of data, you need to demonstrate what it means/ does, and the only way to do that is with a similar stock run (or competitors run... whatever).
We test competitors products to see how we compare and see what can be learned from other designs that are working well. That way we know where the mark is across the board. However we don't feel it is our place to promote or bash other companies. I like your idea on comparing to stock though, I value your input.
Dyno numbers on sleds has gotten a black eye. Seems like there was a Hp war in the mid to late nineties with all the triples back then. And the word was inflated numbers...
I love all kinds of tech info and like to believe that posting wrong numbers, designing dyno-queens and other stupid things would just lead to an early grave for the performance company doing it. Maybe not, I just don't know.
Subscribe to DTR, forums and trawl the net for 2-stroke info (since -95).
Wrenching with Rob, David Cameron, kart sites, Aaens books, Graham-Bell, I love it all!!!
simnil; Great input on the time to reach peak power! Really important. A video could show this.
Was told some time back that Cats made good power on the dyno, but it would not quite show in the field. Reason supposedly was a small (read light) cooling system that needed optimal conditions to cool enough. A case for our latest and greatest sleds?
Anyway, give comparisons like mentioned. Or people get hung up on "your" 160Hp w/ a head vs. "his" bone stock machine with 138Hp.
I also found bsfc numbers to be good info, praying they use a good enough system that is able to monitor quick changes in fuel flow!!
In the end you just have to try and see how we respond. Even 100% honesty could backfire, as a guy/gal could purchase your package and still be smoked by his stock buddy if he skimps on inspection and maintenance. Worn out clutches, bad/wrong belt, misalignment, bad engine mounts, suspension setup; the list is long...
Like your style Joey. You put out interesting info and answer the Q's without letting the critics get to you.
Thanks for sharing and best of luck!
I love all kinds of tech info and like to believe that posting wrong numbers, designing dyno-queens and other stupid things would just lead to an early grave for the performance company doing it. Maybe not, I just don't know.
Subscribe to DTR, forums and trawl the net for 2-stroke info (since -95).
Wrenching with Rob, David Cameron, kart sites, Aaens books, Graham-Bell, I love it all!!!
simnil; Great input on the time to reach peak power! Really important. A video could show this.
Was told some time back that Cats made good power on the dyno, but it would not quite show in the field. Reason supposedly was a small (read light) cooling system that needed optimal conditions to cool enough. A case for our latest and greatest sleds?
Anyway, give comparisons like mentioned. Or people get hung up on "your" 160Hp w/ a head vs. "his" bone stock machine with 138Hp.
I also found bsfc numbers to be good info, praying they use a good enough system that is able to monitor quick changes in fuel flow!!
In the end you just have to try and see how we respond. Even 100% honesty could backfire, as a guy/gal could purchase your package and still be smoked by his stock buddy if he skimps on inspection and maintenance. Worn out clutches, bad/wrong belt, misalignment, bad engine mounts, suspension setup; the list is long...
Like your style Joey. You put out interesting info and answer the Q's without letting the critics get to you.
Thanks for sharing and best of luck!
Bikeman isn't a company I have ever dealt with or even given any thought to for that matter. You keep putting up posts like this and that may change. I like to see dyno sheets and the info you are giving seems reasonable and well thought out to me. Don't worry about confusing me with to much info, if I can't keep up I'll ask questions. Keep the info coming and thank you very much for it.
G
ghost rider
Well-known member
Turbo
Until then keep buying from companies that have dyno numbers(not always a bad thing) and watch for us guys on the top with turbos
Ruffrider until u own or ride a turbo you won't understand why no one posts dyno numbers. The question u should be asking yourself is what one has best throttle response, what one is most user friendly, what one is built with the highest quality products, which one has clutch kit dialed for your elevation(goes along with throttle response stated above), which kit can pound a hill over and over again without power fade. Couple all that with the kit that has the best bang for your buck(not the cheapest). Until then keep holding your breath for a company to release turbo hp numbers on a dyno that won't tell u squat on any of the stuff stated above.
Until then keep buying from companies that have dyno numbers(not always a bad thing) and watch for us guys on the top with turbos
yep we have turbo's that work.
another cool thing would be to take a bit of timing out to when the sled starts to lose a bit of power like that. you could if you have the right controller. ect raises 10 degrees and drop 3 degrees of timming to compesate for heat loss the subtract duty cycle from the boost controller raise boost level and rock on!! know that is how the cow eats the cabbage.
another cool thing would be to take a bit of timing out to when the sled starts to lose a bit of power like that. you could if you have the right controller. ect raises 10 degrees and drop 3 degrees of timming to compesate for heat loss the subtract duty cycle from the boost controller raise boost level and rock on!! know that is how the cow eats the cabbage.
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