Time For Some More Horsepower for the RC390!

[@HK-4545]

Nice job brotha RC 390 are really nice looking bikes also stay safe brotha enjoy.

[@FaerodynMoto]

Thank you brotherman! 😁

[@mikefisher1373]

Thanks for the great content!

[@FaerodynMoto]

@@mikefisher1373 Thank you for the words of encouragement brotherman. I'm glad you stopped by the channel! :-)

[@ericmatrix1]

1st time seeing one of your vids. It was great! Looking to get a 2015 390 soon. Killer sound as well!

[@FaerodynMoto]

Thanks bro! Heck yeah man, I hope you get it!

[@pierrekronbert6741]

180km/h 10200rpm with or without a tune. With raised speed limiter, the speed on display will show 202km/h at 11500rpm. 😊and then you need more power.

[@FaerodynMoto]

Oh nice! Thank you!

[@stevie9361]

Man this thing will never see 60 with just those mods.

[@Flybytweek]

60? Hahaha are you kidding? Or you are just delusional

[@RumiRajbongshi-s6u]

Stick to your tricycle buddy

[@synesthesia2699]

And you just stick to taking the bus

[@Lucas-vu2cr]

I think the linking pipe is for the generation 1 duke/rc

[@FaerodynMoto]

Yeah, that's probably what it was. And the 3rd-party seller on Amazon didn't specify that. Ugh...

[@LuisJimenez-ue7mr]

@@FaerodynMoto Leo Vince ftw!

[@flyingdutchy01]

forget the engine. Swap out the front and rear suspension for some quality parts. you're never gonna make this thing faster but you can make it handle so good that nothing comes close in the twisties.

[@FaerodynMoto]

That's not a bad idea! Do you have any recommendations?

[@flyingdutchy01]

In the rear I have an old shock from a yamaha r6. they fit and are pretty cheap. In the front you should think about swapping the fork internals for cartridges. Andreani offers them but they're pretty expensive. @@FaerodynMoto

[@FaerodynMoto]

🤔 Yamaha R6 rear on a KTM 390? Nice! I would have never thought. Does it change the seat height?

[@ItsThe675]

If I were to buy an aftermarket ECU that I can tune, is that safe to do if you haven't altered anything in your engine like putting a race gasket on or putting stronger racier piston piston rings, coils Etc. Stock internals can handle the higher ram's okay.?

[@FaerodynMoto]

Yes! They usually come with a minor off the shelf tune that just squeezes a little extra power out of the engine: even completely stock. They also open the bike up to things like quick shifters and power modes.

[@VinRence]

Bro which engine oil you use in your machine 10w50 fully synthetic or 20w50 fully synthetic please tell me thanks

[@FaerodynMoto]

@@VinRence I use what the owner's manual says to use: 1.7l (1.8q) of SAE 15w/50 Fully Synthetic. The brand I got was Mobile.

[@MikeyCandela]

How much power did you get out of it? It's been 2 years now so hopefully it got dynoed.. What's the top speed?

[@FaerodynMoto]

Sadly I have been so busy with work and school I haven't had much time to do anything I've wanted to. My schedule has opened up a bit recently and I was able to find a shop near me that has a Dyno for motorcycles, so I plan to take it in and get those questions answered once and for all!

[@dhruvinr1947]

Hello, does keeping the airbox open give a noticeable difference? Because some people saying opening it decreases the air compression into the engine because excess air escapes... I'm new to this modification so I don't know what to do... Would appreciate the help.

[@FaerodynMoto]

Since opening the air box was the very first modification I made to the bike, I did not notice any performance change other than the sound. If you still use a filter and the correct bracket to hold the filter in place, there shouldn't be any air leaks or decrease in performance. In my research, I found that the length of the stock tube leading from the throttle body up to the air box itself was specifically designed to increase torque and that you should not replace it with a cone filter unless you don't mind losing some torque. Once you get an aftermarket exhaust (and a proper tune) then you should notice more of an increase in power having thr air box open than you would with the airbox still closed. Just make sure when you open the air box that you either cut the top off of the air box lid and still use the stock air box lid (like I did), or else get an aftermarket bracket that will still hold the filter in place and make a seal.

[@dougwayne4548]

I want to see dyno results please.

[@FaerodynMoto]

Me too! Hopefully soon...

[@Zehnuss]

Ah, the old china knock-off akrapovic

[@FaerodynMoto]

Haha heck yeah! $35US on Amazon vs $310US... It's a no brainer for me...

[@Zehnuss]

@FaerodynMoto except it's cheap trash not even close to the real thing

[@FaerodynMoto]

@@Zehnuss Meh. It's a muffler. Its sole purpose is to quiet the bike, and it does exactly that.

[@DrewOnTwo304]

Did you ever get the bike on a dyno? I have the competition werks high mount exhaust with the cat delete on mine. I want to do the k&n filter and a power commander next. Nice video!

[@FaerodynMoto]

Thank you Andrew! I haven't had the chance to do that yet, but I really want to dyno the bike. I'm jelly: your exhaust sounds bad@$$! I have a video on how to install a PCV if you get one!

[@RC-br1ps]

@@FaerodynMoto have you done it as yet?

[@juanaliruiz990]

Hey there! I did the full werkes exhaust too with the K&N air filter but noticed it’s too loud for my taste, did you do anything to get the noise to quiet down? I ordered the baffle from werkes but wanted to ask in case there’s something else I could do

[@FaerodynMoto]

@@RC-br1ps not yet. :-)

[@FaerodynMoto]

@@juanaliruiz990 yes: I have a dB killer (silencer) installed in the muffler to keep the noise down, but when I go on long open road trips I remove it for full sound!

[@Vadermoto]

Bro to push the claimed amount of power, you need to have different internals (basically a built engine) no way stock internals push that hard cuz you would damage the piston heads instantly. Also your headers are stock with the cat on so, its basically not 60hp shd be in the ballpark of 45-47hp at the wheel (50hp at crank).

[@FaerodynMoto]

🤔 Hmmm... Makes sense, you could run into those kinds of problems on a car or truck if you heavily modify the power output on stock internals... Still, seems kind of weak for a bike that boasts "Ready To Race". I'd love to see what it's actually making, I just need to look into a motorcycle shop near me that has a Dyno to test it out.

[@ShukoorKawaJr]

Something tells me ur not the brightest

[@kernowboy2556]

Stage 1 map from mantra racing puts out roughly 52bhp think the stage 2 puts out 55bhp check them out MANTRA RACING

[@andrewdrozdzowski5519]

Yea my 2019 RC390 has all the bolt ons and it's not touching 50hp. PCV, custom airbox, large injector, k&n with open lid, full exhaust, dyno tune and it's making 44.5hp to the rear wheel. You'd need to get the high comp gasket kit, upgraded valves, titanium valve spring retainers and a DCR camshaft to start talking 50hp. At that point, may as well add in the gray area fire ring cylinder and upgrade the piston and connecting rod. May as well buy a faster bike lol

[@rubik2379]

How much power is it making

[@FaerodynMoto]

I'm not sure. I've been so busy I haven't had a chance to take it to get dynoed

[@mahyuddinrazali854]

I wonfery how much u can get the power increase if u replace the airbox inlet, it might just add some more power to your tune

[@FaerodynMoto]

I did some research into replacing the stock air box with a simple cone filter to increase airflow into the engine. What I read is that the length of the stock intake stack leading up to the box was specifically designed to increase low-end engine torque. If it is replaced with a cone filter, the engine will gain a little more top end power but sacrifice the low end torque off the line. It was recommended not to do this, since the low end torque is where the 390 engine excels.

[@trminatrcodm]

which ecu are you using?

[@FaerodynMoto]

I'm using the Power Commander V.

[@FaerodynMoto]

DynoJet Power Commander V

[@trminatrcodm]

@@FaerodynMoto ok thnx

[@THALORD503]

What exhaust is that?

[@FaerodynMoto]

Leo Vince

[@outlawraceparts8686]

Bend a coat hanger into a spring puller.

[@FaerodynMoto]

I didn't think of that. 🤔 Thanks!

[@LuisJimenez-ue7mr]

How did you get to the 13hp increase? Honestly I don't think that's the case..... Take it to a dyno and find out....

[@FaerodynMoto]

It's all in the tune, my dude! Yeah, I'm kinda curious too. The butt-dyno says it hauls @$$ now, but we all know that real dyno's are much more accurate. :-) On a more serious note: this wasn't a tune I found on a free chat forum. I actually purchased it from a reputable team that specializes in KTM's, so I feel confident that their claims weren't fallacious. Or, at least, not THAT fallacious. Haha but time will tell!

[@LuisJimenez-ue7mr]

@@FaerodynMoto thanks for replying... I understand the tune.. but there are physical limits you can't bypass.. especially on a single cylinder... with the tune you're able to play around with timing and fuel... but can't make miracles... if you ask me, probably you can increase 5-6 horse power... to a max of 48-50hp.... but nothing beyond that... but it would be good if you can test your bike on a dyno and find out about the real number... of course you need to do a base run with no mods first under the exact same conditions to make it fair... if it does make 13hp more, please send me the link, I'll buy the tune immediately!!! PS: I love RC390s and own one :)

[@FaerodynMoto]

@@LuisJimenez-ue7mr You got it, brotherman!

[@LuisJimenez-ue7mr]

1 more thing... once you take it to the dyno, you will realize that past 8000rpm there's no more power or torque... so is just over revving the engine till 11.500rpm.... I would stick to 10.000 rpms, specially knowing how "delicate" these engines are...

[@FaerodynMoto]

@@LuisJimenez-ue7mr oh, good to know. Thank you!

[@sheaewart7618]

Any links for the midpipe?

[@FaerodynMoto]

I can't remember the exact part name. I'll try and see if I can find it.

[@sheaewart7618]

I need the kink for the midpipe haha

[@FaerodynMoto]

Shoot, I can't remember where I bought it from. I'll have to do some research and see if I can find the exact part and a link for you.

[@jlpedro]

Upping the redline sounds like a terrible idea.

[@FaerodynMoto]

It increases the bike's top speed, but you have to be careful not to raise it too much or else you start excessively wearing down engine components. 😬

[@KittanBachika]

imagine buying motorcycle part on amazon, always a mistake

[@FaerodynMoto]

Amazon often has poor quality parts from China, but there are times in all of our lives where we must choose between quality or affordability based on our $$ budget. To buy the crappy part, or to not buy it at all. 🤷‍♂️

[@KittanBachika]

@@FaerodynMoto or just wait and save money and buy the quality part. I'll never understand that fucking argument... You don't have the money now? Wait and you'll have it at some point. I ain't rich myself but i'll never buy cheap shit

[@FaerodynMoto]

@@KittanBachika everyone has the freedom to make their own choices in life. :-)

[@atncozkan5162]

Dude 75hp 690 makes 210km. potential max hp for duke or rc 390 is 48 hp.rest is fooling yourself

[@tomg6284]

Click bait, BS. 373 cc 60hp, not how your doing it.

[@FaerodynMoto]

*Spits Monster on keyboard* Lol you mad bro? 😂

[@Shmack_]

Bike sounds like it wants to die

[@FaerodynMoto]

Oh really? How so?

[@FaerodynMoto]

I don't know what to listen for...

[@CcTrippy]

@@FaerodynMoto ignore the dork hes just a knucklehead hating on beginners,sounds perfect brotha love the bike

[@FaerodynMoto]

@@CcTrippy Lol thanks bro! I thought maybe the bike was misfiring or not properly tuned and I just couldn't tell. XD

[@THALORD503]

Ignore the haters