BMW Motorcycles

[Cyclop aka Sideways]

Hey Guys,

Are we chilling out at Carmen tonigt??? http://jkhouw.smugmug.com/photos/15658754-M-1.gif

[SDR]

Originally posted by Cyclop aka "Sideways!&q@Jun 3 2005, 09:44 AM

Hey Guys,

Are we chilling out at Carmen tonigt???

Sorry, don't think I can join you guys @ Carmen 2nite, I will drop by Technoflex supplier to see if my oil belly pan arrive.

[Guest koma]

Originally posted by SDR@Jun 3 2005, 09:22 AM

Where did you park your bike? What do you think of Mystic with your exhaust. hehehe.

haha no prob i gibe u can liao then i got excuse tell the missus i bo bian exhaust kenna stolen need to get the 1 with scorpion logo liao~~~

[Guest koma]

Originally posted by Cyclop aka "Sideways!&q@Jun 3 2005, 09:44 AM

Hey Guys,

Are we chilling out at Carmen tonigt??? http://jkhouw.smugmug.com/photos/15658754-M-1.gif

cant make it wil be workin 2nite, will be goin dwn technoflex dealer place tml round 4plus`~~cya

[SDR]

Originally posted by koma@Jun 3 2005, 10:45 AM

haha no prob i gibe u can liao then i got excuse tell the missus i bo bian exhaust kenna stolen need to get the 1 with scorpion logo liao~~~

Aiyo, better not, later yr mrs saw ur exhaust on my bike and report to police.

 

wonder if i can make it, 2 nite - 4 x anoneh coming, tomorrow - wedding lunch, in-law house dinner, wife re-training am, biz for nothing. hiaz.

[SDR]

How do exhaust headers work to improve engine performance?

 

Headers are one of the easiest bolt-on accessories you can use to improve an engine's performance. The goal of headers is to make it easier for the engine to push exhaust gases out of the cylinders.

 

When you look at the four-stroke cycle in How Car Engines Work, you can see that the engine produces all of its power during the power stroke. The gasoline in the cylinder burns and expands during this stroke, generating power. The other three strokes are necessary evils required to make the power stroke possible. If these three strokes consume power, they are a drain on the engine.

 

During the exhaust stroke, a good way for an engine to lose power is through back pressure. The exhaust valve opens at the beginning of the exhaust stroke, and then the piston pushes the exhaust gases out of the cylinder. If there is any amount of resistance that the piston has to push against to force the exhaust gases out, power is wasted. Using two exhaust valves rather than one improves the flow by making the hole that the exhaust gases travel through larger.

 

In a normal engine, once the exhaust gases exit the cylinder they end up in the exhaust manifold. In a four-cylinder or eight-cylinder engine, there are four cylinders using the same manifold. From the manifold, the exhaust gases flow into one pipe toward the catalytic converter and the muffler. It turns out that the manifold can be an important source of back pressure because exhaust gases from one cylinder build up pressure in the manifold that affects the next cylinder that uses the manifold.

 

The idea behind an exhaust header is to eliminate the manifold's back pressure. Instead of a common manifold that all of the cylinders share, each cylinder gets its own exhaust pipe. These pipes come together in a larger pipe called the collector. The individual pipes are cut and bent so that each one is the same length as the others. By making them the same length, it guarantees that each cylinder's exhaust gases arrive in the collector spaced out equally so there is no back pressure generated by the cylinders sharing the collector.

 

So, is the "collector" important? someone had replaced the "collector" with a (_Y_) pipe connector, will there be "back pressure" generated by the cylinders? Olden days bike don't come with "collector", is the introduction of "collector" to pass emission test or to reduce back pressure? Will it be better if "collector" is retained and just change to a straight thru muffler, as the function of muffler is more or less to reduce sound? Or if it is best to eliminate the collector and change to a straight thru muffler? Can anyone here advise?

[GSGabes]

Originally posted by SDR@Jun 3 2005, 03:42 PM

So, is the "collector" important? someone had replaced the "collector" with a (_Y_) pipe connector, will there be "back pressure" generated by the cylinders? Olden days bike don't come with "collector", is the introduction of "collector" to pass emission test or to reduce back pressure? Will it be better if "collector" is retained and just change to a straight thru muffler, as the function of muffler is more or less to reduce sound? Or if it is best to eliminate the collector and change to a straight thru muffler? Can anyone here advise?

My bike in stock condition has the collector box with the cat inside.... removing it removes the back pressure leh. Now it's kinda striaght thru now.....

 

 

 

CYCLOPS, tonight CARMEN MEH??

[Guest koma]

will be goin dwn usual place later at 5plus c u guys there

[Cyclop aka Sideways]

Not a (Y) like Gabes, but............ http://www.advrider.com/forums/images/smilies/headscratch.gif

 

http://www.spieglerusa.com/prodimg/R1200GSheader.jpg

[RT]

Yo,

 

anyone can tell me the new add for M-teknik at Paya UBI,

 

Thxs

[Guest koma]

Originally posted by RT@Jun 4 2005, 11:11 PM

Yo,

 

anyone can tell me the new add for M-teknik at Paya UBI,

 

Thxs

its at paya ubi industrial estate blk 53 5th floor juz ride around u wan miss it,its a corner shop

paiseh overslept juz now went dwn mtech round 8plus juz 1min after u guys left~~

[Guest koma]

yo cyclop check tis out~~~

[Guest koma]

c how the pipes blend in so well with the bike~~~

[Guest koma]

dont u juz love this scorpion logo`~~

[SDR]

Is This The Right Oil For My Bike?

[SDR]

Motorcycle Oils vs. Automotive Oils

[SDR]

BMW SUPER POWER = MOBIL 1?

[SDR]

WHY HARLEY OWNERS CHOOSE AMSOIL

[Cyclop aka Sideways]

Originally posted by koma@Jun 5 2005, 11:33 AM

yo cyclop check tis out~~~

Nice!

 

I'll give the carbon version a miss and go for Ti

[PL]

TRAIL BLAZING WOMEN BIKERS?

 

Man...I think I'll be riding for quite a while for opportunities to meet them... heh heh heh

[Cyclop aka Sideways]

Originally posted by PL@Jun 6 2005, 11:01 AM

TRAIL BLAZING WOMEN BIKERS?

 

Man...I think I'll be riding for quite a while for opportunities to meet them... heh heh heh

If you get to meet any of these lovelies, don't be like the previous encounter and just http://www.advrider.com/forums/images/smilies/eekers.gif, give them a http://www.advrider.com/forums/images/smilies/wave.gif, who knows.......... you might get invited for a http://www.advrider.com/forums/images/smilies/beer.gif

[PL]

Originally posted by Cyclop aka "Sideways!&q@Jun 6 2005, 11:50 AM

If you get to meet any of these lovelies, don't be like the previous encounter and just http://www.advrider.com/forums/images/smilies/eekers.gif, give them a http://www.advrider.com/forums/images/smilies/wave.gif, who knows.......... you might get invited for a http://www.advrider.com/forums/images/smilies/beer.gif

Or maybe I invite them to join us to http://www.advrider.com/forums/images/smilies/beer.gif at Carmen's ? http://www.advrider.com/forums/images/smilies/mwink.gif hehehe...see how lah, if I have the guts at that time. But if the lady is someone with pierced navel and tattoo of a werewolf on her entire back doing wheelie at 100km/h, think I'll just head home and http://www.advrider.com/forums/images/smilies/sleep.gif

But if she's lovely and friendly, then http://jkhouw.smugmug.com/photos/15658754-M-1.gif

[Cyclop aka Sideways]

Originally posted by SDR@Jun 5 2005, 04:40 PM

Motorcycle Oils vs. Automotive Oils

Excellent article SDR

 

Hmmmm..... since our boxers are basically evolution of their WWII engines, maybe we could track down some Luftwaffe vintage...... probably goes for 60cents a barrel http://www.advrider.com/forums/images/smilies/lol.gif

 

And Mr Technoflex can probably use Chai U for his now "Enhanced" 11 http://www.advrider.com/forums/images/smilies/ricky.gif

[Cyclop aka Sideways]

Originally posted by PL@Jun 6 2005, 12:28 PM

Or maybe I invite them to join us to http://www.advrider.com/forums/images/smilies/beer.gif at Carmen's ? http://www.advrider.com/forums/images/smilies/mwink.gif hehehe...see how lah, if I have the guts at that time. But if the lady is someone with pierced navel and tattoo of a werewolf on her entire back doing wheelie at 100km/h, think I'll just head home and http://www.advrider.com/forums/images/smilies/sleep.gif

But if she's lovely and friendly, then http://jkhouw.smugmug.com/photos/15658754-M-1.gif

Aiyah..... Counter impress her and Bua your RT's engine cover while leaning over and giving her a http://www.advrider.com/forums/images/smilies/wave.gif at the same time lah. And don't forget to lift your chin guard and give her a http://www.advrider.com/forums/images/smilies/smooch.gif

[SDR]

Many vehicle owners believe that higher octane fuels are better for their vehicles since they are labeled "PREMIUM." The logic is that since it is a premium fuel it must be better. In reality, the premium label originates from the higher cost to refine and the resultant higher retail cost. Some refiners label their high octane fuels "SUPER." Some owners think that these fuels will make their vehicles more powerful. Only engines with high compression ratios can deliver all the potential energy from higher octane fuels! Always consult the manufacturer's octane recommendation to determine the proper octane requirements for any given vehicle. Generally, engines with compression ratios of 9.3 : 1 or less will safely operate with unleaded 87 octane fuel. Engines with higher compression ratios usually require higher octane fuels.

 

Many owners who operate vehicles designed to operate on 87 octane fuel experience ping and knock. They usually "fix" this problem by purchasing the higher priced, higher octane fuels. Most owner's manuals indicate that some light and intermittent ping is normal but that heavy or sustained ping or knock should be attended to by either purchasing the correct octane fuel or servicing the engine.

 

FUEL OCTANE SELECTION

 

The Low-Down on High Octane Gasoline