while I dont disagree, the reality is no matter how you tune it - its not that big. the ignition changes are not 1 degree per step. more around .2 degree. measured with some extremely trick tech. The video is to show for those who think they are making more power with some of the claimed power maps - they arent. And we test all throttle positions - but it would be a 2 hour video

it would take us way too much time for a video. the power differences are extremely small, the app is designed to not allow a consumer to do much, what you tel the app to do vs what it does is not the same. The aftermarket allow full control - but the oems are extremely smart and typically program the bikes really well. On the ktm, the phone app can only pull power away - but never add. mostly at part throttles

Great question. I'd love to see dyno runs from idle with various throttle amounts. Some bikes are dramatically better off idle and it barely shows on the graph. I had a 125 enduro bike many years ago that could pull up steep hills *if *i didint give it more than 40% throttle.Any more throttle and it would die

You lost me. All zeros is all zeros

I do not for oem tuner We sell get ecus - huge deveolopment and ability within those. for you i would try minus 7 or 8 ignition and plus 3-4 fuel everywhere. starting in gear is hard - clutch more important - drags engine

Adjusting idle to roughly 2000 to 2100 with the bike in gear and clutch in helps. Also pulling clutch fully into bar grip helps too with the drag and starting.

I believe yamaha has posted some maps that smooth it out. Less ignition, more fuel will be the direction they suggest in those maps. In our testing, it takes -5-6 at minimum on ignition to make a decent change

Probably normal, exhaust gasses creat lots of heat, it makes headers glow in many cases

i guess what I'm asking is, you can go as high as +7 or as low as -7 but I see no maps pushed that high. Will the bike gain power with say a dt1 high flow kit, fmf 4.1 system, some renegade pro4, and pushing the maps higher than what we normally see?

why do you think “pushing the app” will make more power. plus just means more fuel or ignition. The bike overall is too rich anyways. more fuel hurts power. the bike already makes max power at stock ignition. more ignition hurts power….

Best value is a air filter kit and air box cover we can sell. After than it becomes pricey. Next would be dual injector and ECU kit

for what

Every dyno can read different. We believe off extensive testing ours is accurate wheel power but I can push a button and make it read any number if I wished to - which I don’t. I have taken bikes from my dyno to others and seen them read “4 hp higher”. The dyno is a tool for comparing things, not for quoting numbers. Most people just can’t understand this. We’ve had engines that make 62 hp on my dyno win races in outlaw karts or hill climb against engines people claim make 80. We publish using sae correction factors so we can have relatively comparable data day to day, summer vs winter. I have tested the same bike on vastly different days and after correction factor applied from our weather station the two results be within a tenth or so. I’ve had the same bike come a year later and repeat results as well. Having repeatable test method adn test data is key, I see a lot of shops not understand this.

@HP Race Development well aware of dyno function and not questioning numbers. Just interested as to how people are testing and quoting MX bike figures and what the manufacturers quote.

@@RBGgermanKX250F ktm quotes countersprocket at stp. I’d rather be low and over deliver when we sell our race packages, which happens quite often for us.

Great question. The current YZF dyno on vital is quite good for the 22 year test. We see nice gains on my dyno with our tuned ecu on the ktm group bikes - which I've published results on - client feedback on our ecu is massive improvement vs std. So that more accurately represents what mags seem to publish. I pride myself on consistent testing and procedure that I feel matches what we see while riding - it has taken a long time to develop our overall test methods. So to answer you - the ktm engine has more potential in stock form than it comes delivered with a better tune up in our testing. I've heard that test bikes often get a little "jazz" up from various OEMs for testing outlets - which I would do if I were them so why wouldn't ktm put their best foot forward... Gas varies across the country - which then varies the mapping. ESPECIALLY euro to usa. And cali to tx I think varies too. The OEM yamaha map was really really good - I don't think many people can actually improve it on a stock bike in a power standpoint (aftermarket ecu included) - I've tested various outlets ECU offerings and that's been my experience. Once mod that all goes out the window - or pipe changes etc. All that to say - I think fuel, testing method, coolant temp, oil temp, tire used, final gear ratio (gears dont' change power per say but if one bike goes 75 mph and another goes 68mph at the end of a pull wheel speed less inertia is used up or stored in the 68mph bike), tire used, tire pressure, strap pressure and test method vary results. And OEM's cheat. These are client supplied bikes, bought off a real showroom...not supplied by oems... Great question. Even oil type and selection, fill level has a huge effect. On yamaha's, I've seen 1.5 hp loss if over filled!

we post all sorts on all sorts of brands

@@HPRaceDevelopment sorry. Auto correct got me. I thought I read in one of the comments that you guys were going to post a video on dynoing power flow kits with aftermarket air box lids. What kind of power are you seeing on stock bikes with just a power flow (twin air or no toil) and a air box lid with extra intake holes and extra height over factory?

2022 yz250f is the bike in question

@@foxracing16after yamaha pulled their bullshit I dont feel the need to give them any press

@@foxracing16 previous reply accurate - but you can get 1 hp or so

did you watch? What map looked best power wise?

@@HPRaceDevelopment yes thank u

@@charlesclapper8982 ok, I like POWER!!! On 250’s that’s what matters most. If the bike feels TOO aggressive for you, then the smoother/slower mapping is a great way to tame it down. On 450’s most owners need a way slower map!

@HP Race Development ya I like the aggressive

What we have learned is the ignition “steps” in the yamaha tuner are small. My educated guess is each 1 equates to .2 degrees - which is essentially nothing. On the fuel side - its bigger steps - 1 is around 3 percent. We will have future videos but on a stock bike with parts - but no ecu is worth huge gains. Yamaha isnt dumb and employs really smart people with really bad ass testing equipment. they do motogp bikes etc… We have a video going up of airbox changes - without a doubt the best dollar per gain thing on any bike Ive ever tested.

I changed the map to the "EXCITING POWER" from Yamaha website and it does makes a noticeable difference, find myself in 3th gear instead 2th in some corners. not sure how it relates to HP but on the track it is a good tool, especially since it's free.

@@husqvarna199 It makes very little difference….if you went back to std you would find you can do the same without the change. The reality is the difference it makes can be done the same but opening the throttle 2-3 percent more in that situation.

@@HPRaceDevelopment Did you try the maps yourself on the track?

@@husqvarna199 Yep. Multiple riders. I can assure you the difference is extremely small. In my opinion the aggressive maps felt snappier in no load rev, but slower all around under load. Certainly top feels longer - it’s just slower and doesn’t hit limiter as quick

Same engine 21 and 22 no changes