Put 290 on Rmz250 with stage 2 hot cams didn’t seem to lose any top felt torqueie down low like a 450 or 350. Put a GET on it but couldn’t ever get it to work. Dan hooked me up with one for my 23 kx so couldn’t be happier.
Maybe one day I can bring you this 290 and the get ecu we couldn’t get working. Would love to bring you my yz2fiddy and have you dyno the way it is then with a new DEP pipe and Lectron to see if it had any gains.
Very cool to see the hp and tourqe under the curve. 4 hp at the top of the curve means nothing, but 3 hp and 5 tqlbs of tourqe everywhere is huge.👍 Great video. I assume head porting and valve work would help the big bore make even more.
It is running out of air, thats why the top end drops off. Additionally the header pipe has a deficit where the dog leg is just before the resonator, in fact would it be better that the whole primary header be on a similar plane which would put the resonator more rearwards keeping the same lengths?
Header turns are not much an issue. Header sizing is a huge variable in tuning, and for a 290 could be helpful. While it "is running out of air" it's not as simple as to WHY. Intake length, camshaft selection, and port are a big role all together. The CRF made a bunch of changes from 21 to gain bottom but the lost top. The intake port wasnt one of those changes
This is great, thanks for this video! I’ve been looking at the Red Moto 300 kit for my crf250 bikes. Looks like the power is gained most right where I like to ride, the midrange. I am curious though, what is the effect of a big bore kit like this on the longevity of the other engine components? Does it drastically shorten the lifespan of the valvetrain, crank, clutch, gearbox, etc?
We can sell you this combo and I think you will more extremely happy. The red moto kit is the same cylinder design but the retune a stock ECU, it is 1mm larger as well which IMHO is worse with piston weight and gain in power vs the size. These parts dont effect valve train, it will stress the rod, clutch and gear box more.
@@HPRaceDevelopment thank you for the response, I do value reliability so something to consider for myself. Have you ever looked into downsizing a 450, is it possibly to convert one into a 350? I would think you would be limited by the valve placement. If done right, a big market for the Japanese bikes.
Hi, I have a Athena 290 kit on my CRF 250 2022. recently installed the GET RX-1 Pro. The maps are custom made by GET for the 250. At what percentage should I raise the fuel injection and should it be the same at all rpm? Maybe you have a picture of your ECU settings? Thanks
@@HPRaceDevelopment Thanks for the answer. I took the bike to a professional. The GET Ecu is too limited and we weren‘t able to give the bike enough fuel. We decided to go for a Carrot ecu with Lambda sensor. Now we have 3 customized mappings . Autotune, without autotune(in case the lambda sensor breaks) and a map with traction control. I Will pick up the bike this week. It‘s a beast on the Dyno
@@999-sandor-korossy I can assure you / vs a good tune up, autotune is worse. I have carrot ecus here - and have have tested a lot with them. They offer no additonal tuning features from a get - but are an excellent ecu. That said, the autotune is always too far behind in making a correction to be useful in moment you need it most. The right way to do it is a good tune up. Its faster to respond and produces better on track performance.
Cant wait to try out my 270 kit next year. Do you think i would have more to gain getting the 270 dyno tuned or even send out the ignition to be tuned on its own? Again its a vertex ign already tuned for the 250 love the videos!!
If you like to rev the difference is small If you like to ride the torque curve the difference is bigger. Our website currently has the 290 on sale if thats something you are interested in.
@HPRaceDevelopment I get that I was just wondering maybe u could to one for a 21 ktm250sxf factory edition lol. I have that bike with the stock header and the akrapovic silencer, I'd like to see the difference with a bills pipe
Hi, do you have played with raise the fuelpump pressure? Because new dual inj bike have 50psi fuel pr and older ones 45psi. Think you when you rais the fuel pr. Engine getting better respons by inj. More fuel ?
Thanks, im installed a get evo ecu with 2e inj in airbox. Its a rmz 270 with pc cams hgs exh. What hp would I expect ? Im now the 2019+ rmz250 have 50 psi. D Must also 50psi because added 2e inj. Thanks
Most of the bikes are in the 50-55 range... Often it has to do with injector sizing and duty cycle. Without head work, id guess you to be 39 ish on our dyno@@bernardvanderveen7656
Thanks the head im did some work on it, blending the valv 0:59 e seats on the castings. So smooth transover port to seats and seat to chamber. Ex ports smooth finish and maching the ex port from head to pipe include the ex seal so its all straight flow line. Its a 2014 model
@@aodhanking2539 “oxygen sensor” is a wideband. We add them to the headers to collect data so we can tune the bikes more precisely. once we have a setting that runs best on the dyno, we use a special data collection box to read what the bike does while racing on track so we can then further improve the tune up to replicate what is shown best on the dyno
A little more gain than I expected. Nice work as always. Ty
Put 290 on Rmz250 with stage 2 hot cams didn’t seem to lose any top felt torqueie down low like a 450 or 350. Put a GET on it but couldn’t ever get it to work. Dan hooked me up with one for my 23 kx so couldn’t be happier.
Gotta work with a tuner to tune the ecu, they dont self adjust…
Maybe one day I can bring you this 290 and the get ecu we couldn’t get working. Would love to bring you my yz2fiddy and have you dyno the way it is then with a new DEP pipe and Lectron to see if it had any gains.
If you get the time@@michaelkritter1694
If I had the money I could find the time
Very cool to see the hp and tourqe under the curve. 4 hp at the top of the curve means nothing, but 3 hp and 5 tqlbs of tourqe everywhere is huge.👍 Great video. I assume head porting and valve work would help the big bore make even more.
Always great work , looking forward, to head work to show down home. Regards
Excellent video.
When will the dual injector video be released?
Someday…shot it twice and wanna do better on it
the top HP number with the tune and 290kit is the same as stock KTM/Kawi, or am I reading something wrong here?
thats about right
It is running out of air, thats why the top end drops off.
Additionally the header pipe has a deficit where the dog leg is just before the resonator, in fact would it be better that the whole primary header be on a similar plane which would put the resonator more rearwards keeping the same lengths?
Header turns are not much an issue. Header sizing is a huge variable in tuning, and for a 290 could be helpful. While it "is running out of air" it's not as simple as to WHY. Intake length, camshaft selection, and port are a big role all together. The CRF made a bunch of changes from 21 to gain bottom but the lost top. The intake port wasnt one of those changes
This is great, thanks for this video! I’ve been looking at the Red Moto 300 kit for my crf250 bikes. Looks like the power is gained most right where I like to ride, the midrange.
I am curious though, what is the effect of a big bore kit like this on the longevity of the other engine components? Does it drastically shorten the lifespan of the valvetrain, crank, clutch, gearbox, etc?
We can sell you this combo and I think you will more extremely happy. The red moto kit is the same cylinder design but the retune a stock ECU, it is 1mm larger as well which IMHO is worse with piston weight and gain in power vs the size.
These parts dont effect valve train, it will stress the rod, clutch and gear box more.
@@HPRaceDevelopment thank you for the response, I do value reliability so something to consider for myself.
Have you ever looked into downsizing a 450, is it possibly to convert one into a 350? I would think you would be limited by the valve placement. If done right, a big market for the Japanese bikes.
would moving the rev limiter lower help with the drop off. let it run into the limiter before the big drop off.
If you want a lower limiter - sure...but it's stil above stock HP - so why drop the limiter...
Hi, I have a Athena 290 kit on my CRF 250 2022. recently installed the GET RX-1 Pro. The maps are custom made by GET for the 250. At what percentage should I raise the fuel injection and should it be the same at all rpm? Maybe you have a picture of your ECU settings? Thanks
We dont do wifi map changes for the 290, we custom map the ecu correctly for the 290
@@HPRaceDevelopment Thanks for the answer. I took the bike to a professional. The GET Ecu is too limited and we weren‘t able to give the bike enough fuel. We decided to go for a Carrot ecu with Lambda sensor. Now we have 3 customized mappings . Autotune, without autotune(in case the lambda sensor breaks) and a map with traction control. I Will pick up the bike this week. It‘s a beast on the Dyno
@@999-sandor-korossy thats hilarious. too limited means he doesnt tune get…
the autotune on a race bike is garbage
@@HPRaceDevelopment we will see. The Dyno charts are excellent. Will let you know hoe it does on the track
@@999-sandor-korossy I can assure you / vs a good tune up, autotune is worse. I have carrot ecus here - and have have tested a lot with them. They offer no additonal tuning features from a get - but are an excellent ecu. That said, the autotune is always too far behind in making a correction to be useful in moment you need it most. The right way to do it is a good tune up. Its faster to respond and produces better on track performance.
Lmfao on the thumbnail my baby took a picture of me and I looked like a Koopa from the mariobrothers live action movie
Great video! What gearing would recommend on this bike?
drop 2-3 teeth
@@HPRaceDevelopment Appreciate that. Also, just noticed "Real Good At Doin' Stuff!!!" replied to your comment. Interesting stuff.
Cant wait to try out my 270 kit next year. Do you think i would have more to gain getting the 270 dyno tuned or even send out the ignition to be tuned on its own? Again its a vertex ign already tuned for the 250 love the videos!!
It wont be tuned correct for a 270 if it's for a 250.
@HPRaceDevelopment would sending out the ign be good or is dyno tuning the best?
No question, dyno tune it. Every motor is different. @@thedirtdigger5990
@@SidewaysFord kinda what i was thinking too
270 vs 290.. Just more power? Different power? Less top, more top? I'm interested in freshening up my 22 crf250r. At 210lb, I'm thinking 290 kit lol
If you like to rev the difference is small
If you like to ride the torque curve the difference is bigger.
Our website currently has the 290 on sale if thats something you are interested in.
Can you do a test with a bills pipe vs others or just I'm general
Every bike and pipe company will have different results. It's not like a pipe company will always get the same results on every bike
@HPRaceDevelopment I get that I was just wondering maybe u could to one for a 21 ktm250sxf factory edition lol. I have that bike with the stock header and the akrapovic silencer, I'd like to see the difference with a bills pipe
We wont buy it just for a test@@HennyTRX3773
@HPRaceDevelopment worth a try lol 😆
Can u share the link where you bought? Is real 290 or 280?? I only found 280cc for 04-09 engine
Any news !? We are waiting for the result and part 2 and 3
@@mahaniamir Got sidetracked on a bigger project on this bike
Hi, do you have played with raise the fuelpump pressure?
Because new dual inj bike have 50psi fuel pr and older ones 45psi.
Think you when you rais the fuel pr. Engine getting better respons by inj. More fuel ?
They do not need more fuel in most instances
Thanks, im installed a get evo ecu with 2e inj in airbox.
Its a rmz 270 with pc cams hgs exh.
What hp would I expect ?
Im now the 2019+ rmz250 have 50 psi. D
Must also 50psi because added 2e inj.
Thanks
Most of the bikes are in the 50-55 range... Often it has to do with injector sizing and duty cycle. Without head work, id guess you to be 39 ish on our dyno@@bernardvanderveen7656
Thanks the head im did some work on it, blending the valv 0:59 e seats on the castings. So smooth transover port to seats and seat to chamber.
Ex ports smooth finish and maching the ex port from head to pipe include the ex seal so its all straight flow line.
Its a 2014 model
39 likely close, probably 21.5-22 lb ft - which is really good torque@@bernardvanderveen7656
Do u have video of double injection and bills pipe with exu
Nope
All the power is 3th and 4th gear ⚙️
Hi I’ve got a 2023 Crf250R and I’m thinking about getting this kit but my friend said if I do this kit without a full system my bike will be a bomb ?
Huh? If you purchase from us we can steer you correct on set up
Does the new Yamaha 250F have a 290 big bore kit made for it?
300cc kit, we can get them for you if you wish
If u compare ur fastest crf250r engine against this big bore 250 in the video than which one is faster?
Depends what yuo call faster. No 250 makes that sort of torque at that low of an rpm. But we make considerably more pea HP on a full mod 250 honda
Ecu
Did I really see a catalytic converter and a oxygen sensor on the bike? That sucks
lol, you see a wideband for tuning and improvement purposes, no CAT.
@@HPRaceDevelopment please explain what a wide band is, I assume then that the plug and cable coming out of the side is for measuring something?
@@aodhanking2539 “oxygen sensor” is a wideband. We add them to the headers to collect data so we can tune the bikes more precisely. once we have a setting that runs best on the dyno, we use a special data collection box to read what the bike does while racing on track so we can then further improve the tune up to replicate what is shown best on the dyno