Gain 25% more Horsepower Husqvarna VITPILEN 401 with PowerTRONIC v4

we take a husqvarna vitpilin 401 and throw some mods on it and gain 25% more horsepower

[@mr_toads_wild_ride]

Lame and a waste if money, could have easily gotten a 100% hp gain if you just paint your brake calipers red

[@travisshrey6720]

It would be great if the x axis of the dyno printoout was in RPM and not time. Your max hp gain you said was 3k rpm - it is not, it is 3 seconds into the pull. I'm guessing that is about 7k.

[@twobuddiescustoms]

Your right, rookie mistake! Thought I printed it out with rpm.

[@eldenLord_012]

Instead of the powertronic what you think about puttin the rapid bike evo?

[@El_Rudo]

How does a 3 HP gain equate to an 11 HP gain? 🤔

[@twobuddiescustoms]

Meant to say equate to 11% not HP !!!

[@bamboostick5]

Need help, I currently own a svartpilen 250 stock, if I decide to buy the svartpilen 401 and do all the same mods as you, would that be practical? I really like the svart but I feel I need a little bigger engine so why not I just get the bigger cousin?

[@twobuddiescustoms]

Hi buddy it comes down to how you going to use the bike. The 401 with the mods are great, gives it a nice little power upgrade and you still have a bike that feels small and light allowing you to throw it about, especially through traffic. Now the 701 is a different animal all together, you can’t compare the power between the two! So you need to think how you going to use it! If money isn’t a problem I would go straight for the 701 but if you commute through the city like most Londoners then the 401 is better.

[@bamboostick5]

@@twobuddiescustoms I just removed a ton of weight from my 250 svartpilen and did some performance mods passing through traffic at 100+ is now a breeze, bike no more wobbles at 100+ speeds and sound has improved a lot whats better is the bike feels much more agile than before and with a bit of tweaking to the suspension (made the rear shock softer), this has become a really good bike I can keep up with 650cc+ bikes on twisties and stay real close to a 400cc on a straight road torque hits much earlier than stock (it hits around 5.5k rpm stock but now its around 4k rpm) and peak power has gone up slightly I still feel the 6th gear is useless on this bike as it can reach higher speeds in 5th albeit at the top of the red line still a great bike and with all the mods I did I think I can keep using it for a few more years

[@pedroramos531]

Great video! Are you by any chance based in South Africa? I am looking at doing the same thing to my 2022 Svart.

[@twobuddiescustoms]

Hi thanks, sorry we based in London.

[@veraxnutritionandfitness5064]

Good video. Glad to see you put the result. I think he meant to say 31->39 torque. 25% increase on torque huh?

[@bamboostick5]

Nah he meant horsepower bruh

[@wokeydokey6885]

​@@bamboostick5but the 401 already makes 43 hp, not 31.

[@bamboostick5]

@@wokeydokey6885 yes it does, and indeed as you can see from the graph it does make approx 42bhp at around 6000rpm What he is measuring is wheel horsepower, the stock 401 makes 43bhp at the crank, and after losses it comes down to a max of 35bhp as you can also see in the graph, and the time graph here is actually RPM At 3000rpm, the stock bike makes 31bhp whereas after these mods it makes 39bhp at the same RPM This also means the torque figures have gone up as the power band hits much faster than stock

[@veraxnutritionandfitness5064]

Thank you for the clarification. 8 hp on a bike that weighs 350 pounds is huge. And since that horsepower gain is so low in the RPM rage, it probably makes the bike feel a lot quicker with accelerating through traffic.

[@giovanhagar]

He said 3hp equals 11hp 😂

[@bve7397]

Will this impact the reliability... since you are screwing with the hps?

[@twobuddiescustoms]

Obviously adding more HP is going to add a little extra strain on the engine, but the air\fuel is set correctly so reliability should be very good!!

[@konstantinoskourini]

Verry nice!!!!what wheels are they???

[@twobuddiescustoms]

They are standard wheels.

[@konstantinoskourini]

@@twobuddiescustoms Aaarghhh in greece we get the spoked ones which are low quality

[@konfunable]

@@konstantinoskourini Come on. Spoked wheels are much better looking than early model aluminium. Now only poor south-east coutries get aluminium.

[@konstantinoskourini]

@@konfunable thats what i thought at first haha but they are a pain to keep clean and my front wheel spokes were f*cked up chipping away very very quickly! I like the Y spoked like the ones in this vid but the best are from the vitpilen 250 five spoked ones

[@Chad5ter]

Just flash the ECU and you’ll get the same result.

[@skiprats]

Wow. That's a lot of extra ponies for the money. I'm impressed with the gains. 👍

[@twobuddiescustoms]

👍 don’t normally see gains like that, we where impressed as well!!!

[@lucaviviani87]

wow quite a big difference, do you know if this is legal for an a2 license or not?

[@twobuddiescustoms]

In reality, if you want to ride any bike using a full 47bhp then it will need to come in with a minimum kerb weight of 175kg. This means some lightweight bikes with less than 47bhp are not A2 legal. Bike Spec You are restricted to a bike with a limit of 35kW or 47bhp The power to weight ratio must be no more than 0.2kW or 0.26bhp per kilogram. Hope your maths are good!!!

[@kawabungatortueninja]

Do you think it s possible with an auto-tuned piggyback to gain close performance improvement?

[@twobuddiescustoms]

Hi don’t think you’re going to get the same as the auto tune won’t adjust the ignition only going to adjust the afr

[@Bevtherev8]

Wow😮 that’s impressive!!!

[@marcopolo9622]

What year is your bike ? I can’t find any new model vitpilen with silver color

[@twobuddiescustoms]

Hi this one was a 2021 UK model

[@amiresfandiari2470]

why does it only rev up to 6k ?

[@jayford4685]

Is there any performance increase from a v3 to a v4 as i have a v3 on my 2018 vit

[@twobuddiescustoms]

Unfortunately we haven’t used the v3 so I’m sorry we don’t know

[@amiresfandiari2470]

this is fake 401 grapth does not look like this ,it can rev up to 11 after powertronic and stock it goes all the way to 9 , this is bad graph (didn’t set the rev matcher or a fake)

[@miketran4289]

Spending that much money on such little gain is not a wise choice on a small bike, save the money towards a bigger bike. Only really do this if you plan on track racing the bike, on the road it doesn't really do much at all and you'll get better perf from a front sprocket change which costs only $20.

[@konfunable]

Can you elaborate on that. What do you change on front sprocket and why?

[@trroland1248]

You removed a catalytic converter to do it, geniuses.

[@pinpon189]

They did not, cat is still there

[@daegan7293]

@@pinpon189he said it’s been taken out

[@El_Rudo]

He said it was the stock header pipe. The catalyst on these bikes is the bulge at the second bend, where the exhaust header starts to go under the engine. What he removed was the resonator/premuffler, which is the heavy metal box under the shock. This box is pretty much straight through and is meant to give the exhaust gas a place to expand before it exits the muffler to help deaden the noise. This is more of a weight saving then reduction in restriction in the exhaust system. I have a full exhaust on mine, with a true decat and resonator delete, with the power tronic v4 and their FuelX Pro. I am pushing 50hp with a custom map. For you neigh sayers, google closed loop vs. open loop and checkout the Svartpilen 401 Super Marauder on my channel...

[@stephenvincentalejaga6443]

​@El_Rudo can you email me the custom map? Thanks

[@jocajokic6199]

Then 60 HP?? 🤭🤭😂😂

I was thinking the same😂😂😂

[@yomamaa13]

Can you share your map please? I am running the exact sertup. Thank you.

[@twobuddiescustoms]

Hi sorry we didn’t save the map.

[@rodharveyhall9155]

With your setup how does it run with the pre installed map that came with the PT ECU

[@amiresfandiari2470]

lean and still retard ignition my svartpilen250 went from 23whp to 24.95whp and after decat and exhaust ported head i got 29whp now @@rodharveyhall9155