MotoCreations Boom Tube Exhausts

Started by DuctheMonster, March 16, 2011, 11:48:37 AM

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xskiervh

#15
Quote from: DucatiTorrey on March 17, 2011, 05:30:28 PM
awesome, second person ive seen do that. if you dont mind, what did it run you? 800 for the arm and 400 for the wheel?

800 for the swingarm, 700 for the rim. Plus longer brake line and other misc oem parts you may need such as the plastic pieces that mount/route the brake line and speedometer line to the underside of the swingarm. Mine didn't come with this :/

rcmcfly

Quote from: stopintime on March 17, 2011, 05:50:20 PM
Extremely loud, not smooth, VERY lean (= engine-damaging heat), loosing power.

The Boom Tubes are not just straight pipes.

Could you elaborate?

stopintime

Quote from: rcmcfly on March 18, 2011, 04:00:01 PM
Could you elaborate?

Cut pipes....
Almost like no pipes at all - extremely loud
Exhaust will escape too easily and there won't be enough fuel in the cylinder to cool down the head/valves. (= damage)
A four stroke engine needs exhaust resistance to run well - if it doesn't have that, it won't be smooth and it will lose power.

BoomTubes....
There is some resistance and sound damping, which makes them much better than cut pipes.

(more or less accurate)

252,000 km/seventeen years - loving it

rcmcfly


Quote from: stopintime on March 18, 2011, 04:26:52 PM
Cut pipes....
Almost like no pipes at all - extremely loud
Exhaust will escape too easily and there won't be enough fuel in the cylinder to cool down the head/valves. (= damage)
A four stroke engine needs exhaust resistance to run well - if it doesn't have that, it won't be smooth and it will lose power.

BoomTubes....
There is some resistance and sound damping, which makes them much better than cut pipes.

(more or less accurate)



From what I gather there is thin to zero baffling in the boomtubes...and it seems that there are a number of ways to baffle and/or provide back pressure to straight pipes...not trying to be contrary just honestly curious because the boomtubes look awesome but there doesn't seem to be much more to them than than what straight/cut pipes plus some exhaust tips would provide...

stopintime

Quote from: rcmcfly on March 18, 2011, 05:06:52 PM
From what I gather there is thin to zero baffling in the boomtubes...and it seems that there are a number of ways to baffle and/or provide back pressure to straight pipes...not trying to be contrary just honestly curious because the boomtubes look awesome but there doesn't seem to be much more to them than than what straight/cut pipes plus some exhaust tips would provide...

Maybe you're right.
I was talking about straight/cut pipes with no tips.
252,000 km/seventeen years - loving it

Raux


Kopfjager

#21
Quote from: Raux on March 19, 2011, 12:35:30 AM
Where is Mark on this question?

+ A whole bunch
Woohoohoohoo! Two personal records! For breath holding and number of sharks shot in the face.

ungeheuer

I think Boomtubes look cool.

I also think that this cool almost certainly comes at a cost to power.  Although I'd be happy to be proven wrong. 

Anybody?
Ducati 1100S Monster Ducati 1260S Multistrada + Moto Guzzi Griso 1200SE


Previously: Ducati1200SMultistradaDucatiMonster696DucatiSD900MotoMorini31/2

DucHead

 [laugh]  If you're really concerned about power, you have the wrong bike.

I have the airbox off my bike and I have Boom Tubes.  I think I can feel a little less power on the top-end.  So what?  It's a streetbike and it'll hit 100mph in short order.  You really don't need more than that (let alone that much) for a streetbike.



If you want top-end power, get a GSXR-1000.  With a little tuning it'll smoke most any Ducati in the lineup.   :)
'05 S4R (>47k mi); '04 Bandit 1200 (>92k mi; sold); '02 Bandit 1200 (>11k mi); '97 Bandit 1200 (2k mi); '13 FJR1300 (1k mi); IBA #28454 "45"

ungeheuer

Quote from: DucHead on March 19, 2011, 05:11:14 AM
[laugh]  If you're really concerned about power, you have the wrong bike.
I'm not concerned at all about making absolute max HP, very happy with what I already got  8).

Just sayin' that perhaps boomtubes cost a little power....
Quote from: DucHead on March 19, 2011, 05:11:14 AM
I think I can feel a little less power on the top-end.
Seems like you think so too.



Ducati 1100S Monster Ducati 1260S Multistrada + Moto Guzzi Griso 1200SE


Previously: Ducati1200SMultistradaDucatiMonster696DucatiSD900MotoMorini31/2

Bill in OKC

'07 S4Rs  '02 RSVR  '75 GT550  '13 FXSB  '74 H1E  '71 CB750

ungeheuer

Quote from: Bill in OKC on March 19, 2011, 06:38:38 AM
Nice bike DucHead  [thumbsup]
+1   (and you cant even see the cockpit in that pic.....   [drool]).
Ducati 1100S Monster Ducati 1260S Multistrada + Moto Guzzi Griso 1200SE


Previously: Ducati1200SMultistradaDucatiMonster696DucatiSD900MotoMorini31/2

mattc7

Quote from: ungeheuer on March 19, 2011, 03:24:37 AM
I think Boomtubes look cool.

I also think that this cool almost certainly comes at a cost to power.  Although I'd be happy to be proven wrong. 

Anybody?


They make make a pony or two less, but there's a significant reduction in weight, which I think may more than offset this.  Actual testing hasn't been done (that I know of) to see how it stacks up on the dyno.  I wish I could test it, but I don't have easy access to one