You can see backpressure working on bikes with removable baffles. Baffle in more back pressure, give normaly marginaly more torque at lower rpm but less power at high rpm. And with the baffle out lower torque at lower rpm but quite a bit more power.
Afraid not... Ive had a dyno run with and without baffles in and I gained 2BHP across the board without them in. Id link a picture but it dont seem to like it :(
Do some research on back pressure you tools. Back pressure is BAD! It can be used on a 2 stroke engine to pressurise the air in the cylinder a little while both valves are open but on a 4 stroke your loosing power as the engine uses more power to force out the gasses. Ideally you want narrow pipes to keep the velocity of the gas high so it escapes before it cools, keeping the density low. A muffler is just used to quieten the engine, it will slow the air, you will get more power without one.
You can tune exhausts, but it works because as the exhaust port closes the exhaust gasses leave a vacuum behind them, timed right this can help suck the gas out of the next cylinder to open. This is how exhausts work on a 4 stroke engine.
The backpressure myth most likely started with straping large bore exhausts to there engines and finding reduced power. It makes sence that big tube = less pressure... wrong! The gas cools making it denser and more difficulty to expel thus higher pressure.
@LeeNell04 Now hows that? Ever seen dragsters, Le mans, F1, Moto GP... not a real muffler in the bunch. On somethings back pressure is used to keep a smooth power curve and a pinch of torque but you can tune that stuff out anyways. A motor is an air pump, air in and air out as fast as possible... If you tune a motor the best exhaust is the one that gets the air out the fastest... Look at the Ducati GP bike big pipe short get outta here design and I don't think they lack power.
Explained: An exhaust can (Muffler) doesn't just reduce noise and emissions, it also adds a calculated amount of back-pressure. Sometimes on the road you'll see a car accelerate, and water will drip out of the tail-pipe. That's right, one of the parts of exhaust is a small amount of moisture, and even un-burned fuel. This moisture is back-pressurized, and stays near the valves, thus cooling them.
With an open, back-pressureless exhaust, expect your exhaust valves to overheat.
Uhh... WHAT?! The muffler reduces noise yes, backpressure, yes, but the water part is COMPLETELY wrong. There is moisture in the air, known as humidity. Think of it as water sticking to the outside of a cold glass, Condensation. So, if the outside air is cool comparative to the inside air of the exhaust system, what happens? It will condensate inside of the exhaust system. Thus when you move, it will fall out of the tail pipe.
This was supposed to be replied to Ralekriver, diddnt work aparently :P Anyway, the valves burn becuase of the flame let escape into the atmosphere, this flame is at roughly 5000 degrees, enough to melt steel. but is only flashed at that temp, doesnt stay for more than a fraction of a second. I hope there were headers on this!
The whole point of an exhaust is to funnel gas away from the engine to let i breath out. Although taking the muffler/can/silencer off makes it louder it destroys the funneling ability of the exhaust system and as a result cuts power as more power is used by the engine to force exhaust gas out of the exhaust (thus aiding cooling of the valves). Thats why moto gp bikes still have end cans, but a bike does sound quality without an end can.
We're both right. I didn't explain it properly near the end because I was running out of characters. I was right about water being part of the exhaust, but I was wrong to lead anyone to believe that it was exhaust from the combustion process. You filled that part in with the explanation of it being condensation.
And to yd108.... Nevermind :) Your slack-jawed drooling statement pretty much says it all for me.
classica schiacciatura dello scarico sul forcellone :)
homonovus6 14 hours ago
verry bad
bike and sound.i hate this
kawasakipilotu 2 months ago
Betyár nagyon !
Nekem egy TLR-em van,de imádom az RSV-ket is.. :) nagyon szép darab
SasvariTLR 8 months ago in playlist motorbike
povera rsv
theivax 1 year ago
seems a beast into a cave
Blade4613 1 year ago
bmw m5 v8 sound like
DimakosCelica2JZ 1 year ago
dented swing arm? classed as a right off mate - your insurance is probably invalid!! just thought you might like to know that....
cotter468 2 years ago
I've fired up my RSV w/o pipes, sounded so good, it shouldn't be legal. Oh wait, it isn't.
jonmm3 2 years ago
You can see backpressure working on bikes with removable baffles. Baffle in more back pressure, give normaly marginaly more torque at lower rpm but less power at high rpm. And with the baffle out lower torque at lower rpm but quite a bit more power.
firebladenut 2 years ago
Afraid not... Ive had a dyno run with and without baffles in and I gained 2BHP across the board without them in. Id link a picture but it dont seem to like it :(
Th3Gr33k 2 years ago
You can see my dyno though if you care to look...
Th3Gr33k 2 years ago
Do some research on back pressure you tools. Back pressure is BAD! It can be used on a 2 stroke engine to pressurise the air in the cylinder a little while both valves are open but on a 4 stroke your loosing power as the engine uses more power to force out the gasses. Ideally you want narrow pipes to keep the velocity of the gas high so it escapes before it cools, keeping the density low. A muffler is just used to quieten the engine, it will slow the air, you will get more power without one.
FIREotter1 2 years ago
You can tune exhausts, but it works because as the exhaust port closes the exhaust gasses leave a vacuum behind them, timed right this can help suck the gas out of the next cylinder to open. This is how exhausts work on a 4 stroke engine.
The backpressure myth most likely started with straping large bore exhausts to there engines and finding reduced power. It makes sence that big tube = less pressure... wrong! The gas cools making it denser and more difficulty to expel thus higher pressure.
FIREotter1 2 years ago 3
How much cc ?
pyzokas 2 years ago
It's like he's melted the swingarm....
dee18f 3 years ago
no pipes, no power
Towel1e 3 years ago
sounds like a chopper
Funchiman 3 years ago 2
Obviously hasn't a clue about engineering! He's just LOST 20HP LMFAO!!!!
LeeNell04 3 years ago 5
@LeeNell04 Now hows that? Ever seen dragsters, Le mans, F1, Moto GP... not a real muffler in the bunch. On somethings back pressure is used to keep a smooth power curve and a pinch of torque but you can tune that stuff out anyways. A motor is an air pump, air in and air out as fast as possible... If you tune a motor the best exhaust is the one that gets the air out the fastest... Look at the Ducati GP bike big pipe short get outta here design and I don't think they lack power.
TopGearAmerica 1 year ago
@LeeNell04 Who cares! The sound is amazing! and for sure loud if youre drivin it!
schosal123 1 year ago
Nahát a Balusk8:)
Mekkorát röfög a sárkány:)
mEgy az 5-ös;)
kenyer1979 3 years ago
wtf is up with the swing arm?? dented looks like
13DEVILSDICE13 3 years ago 3
This comment has received too many negative votes show
Eww twins sound so nasty. sound like a boke down cruiser
Darrieau5493 3 years ago
Sounds like a fuckin gp bike.
tsrmotocross 4 years ago 5
give it a decent rev you faggot
conundrumking 4 years ago 4
that woulda been LOUD
supranator 4 years ago
nem rossz, jó hangos lehetett élőbe
bmwking320 4 years ago
I love the smell of burning valves in the morning
ian05rado 4 years ago
Explain please.
Th3Gr33k 4 years ago
Explained: An exhaust can (Muffler) doesn't just reduce noise and emissions, it also adds a calculated amount of back-pressure. Sometimes on the road you'll see a car accelerate, and water will drip out of the tail-pipe. That's right, one of the parts of exhaust is a small amount of moisture, and even un-burned fuel. This moisture is back-pressurized, and stays near the valves, thus cooling them.
With an open, back-pressureless exhaust, expect your exhaust valves to overheat.
The end. :)
ralekriver 4 years ago
Uhh... WHAT?! The muffler reduces noise yes, backpressure, yes, but the water part is COMPLETELY wrong. There is moisture in the air, known as humidity. Think of it as water sticking to the outside of a cold glass, Condensation. So, if the outside air is cool comparative to the inside air of the exhaust system, what happens? It will condensate inside of the exhaust system. Thus when you move, it will fall out of the tail pipe.
RacingMaster2 4 years ago 4
This was supposed to be replied to Ralekriver, diddnt work aparently :P Anyway, the valves burn becuase of the flame let escape into the atmosphere, this flame is at roughly 5000 degrees, enough to melt steel. but is only flashed at that temp, doesnt stay for more than a fraction of a second. I hope there were headers on this!
RacingMaster2 4 years ago 3
The whole point of an exhaust is to funnel gas away from the engine to let i breath out. Although taking the muffler/can/silencer off makes it louder it destroys the funneling ability of the exhaust system and as a result cuts power as more power is used by the engine to force exhaust gas out of the exhaust (thus aiding cooling of the valves). Thats why moto gp bikes still have end cans, but a bike does sound quality without an end can.
firebladenut 4 years ago
We're both right. I didn't explain it properly near the end because I was running out of characters. I was right about water being part of the exhaust, but I was wrong to lead anyone to believe that it was exhaust from the combustion process. You filled that part in with the explanation of it being condensation.
And to yd108.... Nevermind :) Your slack-jawed drooling statement pretty much says it all for me.
ralekriver 3 years ago
hahaha he knows nothing about bikes LOL back pressure? LMFAO
yd108 3 years ago
Comment removed
johgurette 3 years ago
wrong.
benni2k 3 years ago
wah wah waaaaahhh
yd108 2 years ago 2
resulting in engine el fucko :D
yd108 2 years ago
lol
killerlukey 4 years ago
your bike looks fucked on the swingarm
101swales 4 years ago
o yeaa you suck...fuckin bastards...thats stupid..sounds like a caca
SileDevil 4 years ago
sounds like your girlfriend taking it up the choclate pipe
andrew125cr 4 years ago
agreed.
spike69459 4 years ago
Sounds like your eatn the ass out of a rhino while your dippn your nuts in coconut oil!!
sorich 4 years ago
that is stupid
Sadprince298 4 years ago
is your swingarm bent where the muffler should be??
mootavic 4 years ago
Most látom mit raktál ide!:)Alapjáraton tiszta V8.
ddt500hun 4 years ago
Pocsék hagja van puff nélkül!
kkf79 4 years ago
Rox 5 stars sound!
oxcide101 4 years ago
very good...
you can run on public road with that configuratione :D !!!!
kaiserdariusz 4 years ago
sounds like fuckin moto gp!!!
masterknaster 4 years ago
MIért kell levenni a kiput.. le se tagadhatná, hogy magyar xD
mgy850228 4 years ago
danm dat sounds good man ha ha nyce vid
dice1man1 4 years ago
haha i did that to my dirt bike the other day fuck it was so loud took of the muffler
nergish 4 years ago
Király. Mi lett a kipuffal? Hová valósi vagy?
dinkaka 4 years ago
awesome sound !
Philmen 4 years ago
wicked why cant they all sound like that!!! come on the prilla
brittenv1000 4 years ago
hey that's the sound of my stomach when i'm hungry!!!
marco3253 4 years ago
roooaar
xstingrayx 4 years ago
Harley Davidson is coming to get you!
ATown31061 5 years ago
hahahaha thats funny.sound patent lol
powersliding 4 years ago
no cans save lives!
Brendakov 5 years ago
Nice, love the Prilas!!!
beemaa1979 5 years ago
ouch!!!
Thats a damn good sound!
sicz3r0 5 years ago