CBR929 and CBR954 riders

[LouisB]

Originally posted by FunkyChicken@May 21, 2007 01:00 am

hey bros.....im planning for a pump petrol session at 2nd link. need support once again frm u all, hopefully full squad like the yishun dam... hehehhe

 

juz need ur opinion:

 

-weekdays or weekends

-after midnight or before

than i shall confirm the date asap.

 

:thumb:

I anitin...as long dun beyond midnite will do...

[MiddleAgedBiker]

Originally posted by Aalex82@May 21, 2007 12:40 am

the front number 0W, 5W, 10W, 15W and 20W is not the viscosity at cold temp..

the numbering is to inform u when the engine oil freeze up when hit certain low temp..

i forget the range..

for 0W is abt -10 degree..

so for 20W is abt 10 degree..

i dun really remember the range le..

as for the second number, is the viscosity after 85 degree..

Hi,

 

Hope this helps. Taken from this website:

 

http://www.carbibles.com/engineoil_bible.html

 

I remember in my studies that the numbers represented viscosity too.

 

Viscosity and Viscosity Index (VI).

The proper viscosity is the single most important criteria of a lubricating oil. The basic performance of machinery is based on the viscosity of the lubricant. Viscosity is, if you like, the resistance to the flowability of the oil. The thicker an oil, the higher its viscosity. The chart on the right shows a rough guide to ambient temperatures vs oil viscosity performance in both multigrade (top half) and single grade (lower half) oils.

Multigrade oils work by having a polymer added to a light base oil which prevents the oil from thinning too much as it warms up. At low temperatures, the polymers are coiled up and allow the oil to flow as it's low number (W number) indicates. As the oil heats up, the polymers unwind into long chains which prevent the oil from thinning as much as it normally would. The result is that at 100°C, the oil has thinned only as much as it's higher rating. Think of it like this: a 10W30 oil is a 10-weight oil that will not thin more than a 30-weight oil when it gets hot.

The viscosity index of a lubricant is an empirical formula that allows the change in viscosity in the presence of heat to be calculated. This tells the user how much the oil will thin when it is subjected to heat. The higher the viscosity index, the less an oil will thin at a specified temperature. Multi-viscosity motor oils will have a viscosity index well over 100, while single viscosity motor oils and most industrial oils will have a VI of about 100 or less.

[MiddleAgedBiker]

Originally posted by FunkyChicken@May 21, 2007 01:00 am

hey bros.....im planning for a pump petrol session at 2nd link. need support once again frm u all, hopefully full squad like the yishun dam... hehehhe

 

juz need ur opinion:

 

-weekdays or weekends

-after midnight or before

than i shall confirm the date asap.

 

:thumb:

Interested....depending on which day and time..

[Aalex82]

Originally posted by MiddleAgedBiker@May 21, 2007 11:15 am

Hi,

 

Hope this helps. Taken from this website:

 

http://www.carbibles.com/engineoil_bible.html

 

I remember in my studies that the numbers represented viscosity too.

 

Viscosity and Viscosity Index (VI).

The proper viscosity is the single most important criteria of a lubricating oil. The basic performance of machinery is based on the viscosity of the lubricant. Viscosity is, if you like, the resistance to the flowability of the oil. The thicker an oil, the higher its viscosity. The chart on the right shows a rough guide to ambient temperatures vs oil viscosity performance in both multigrade (top half) and single grade (lower half) oils.

Multigrade oils work by having a polymer added to a light base oil which prevents the oil from thinning too much as it warms up. At low temperatures, the polymers are coiled up and allow the oil to flow as it's low number (W number) indicates. As the oil heats up, the polymers unwind into long chains which prevent the oil from thinning as much as it normally would. The result is that at 100°C, the oil has thinned only as much as it's higher rating. Think of it like this: a 10W30 oil is a 10-weight oil that will not thin more than a 30-weight oil when it gets hot.

The viscosity index of a lubricant is an empirical formula that allows the change in viscosity in the presence of heat to be calculated. This tells the user how much the oil will thin when it is subjected to heat. The higher the viscosity index, the less an oil will thin at a specified temperature. Multi-viscosity motor oils will have a viscosity index well over 100, while single viscosity motor oils and most industrial oils will have a VI of about 100 or less.

i think u nv read properly..

the sentences below i paste come from the webby u give..

"What about 0W oils then?

 

Good question. Given that you can't have 50ml, 60ml or 200ml of oil flowing through any size hole in zero seconds, what on earth does the 0W rating denote? Well it's a special case denoting a difference in the 'pour point' of the oil. Most 5W oils have a pour point at -40°F (-40°C) The base oil is the same in 0W40, but it's pour point has been lowered even further - sometimes to as much as -50°F (-46°C)

 

Pour point is 5°F above the point at which a chilled oil shows no movement at the surface for 5 seconds when inclined. This measurement is especially important for oils used in the winter. A lot of manufacturers tend to quote pumping temperature rather than pour point. Pumping temperature is the temperature at which the oil will pump around the engine and maintain adequate oil pressure. This is typically 20°F above the pour point - ie. 25°F above the point at which the oil is basically a gel.

 

So 0W oils don't flow through a viscometer in zero seconds - they rate at 5 seconds like a 5W oil, but they will be pourable at a much lower temperature. The bottom line then is that if you think your car is ever likely to see a cold morning in the -45°F (-43°C) range, you should be considering 0W40 oil. If not, 5W40 will do. Note that at -45°F, you'll probably have more to worry about than your engine oil - like your radiator fluid, brittle tyres, frozen locks, permafrost on the windscreen etc.etc.etc....... "

[Aalex82]

if u notice the chart in the webby u give..

diff rating engine oil can flow within diff low temp... or pour point..

[MiddleAgedBiker]

Just for friendly discussion, no hard feelings hor...

 

The only statement I disagreed with you is this:

the numbering is to inform u when the engine oil freeze up when hit certain low temp..

 

The numbers do not denote when the engine oil freezes up, but the viscosity (or flowability) rating of the oil at low temperatures.

 

Taken from http://www.dictionary.com

 

Viscosity:

the property of a fluid that resists the force tending to cause the fluid to flow.

 

Taken from another engine oil website (emphasis on bolded and underlined part):

 

Viscosity is a measure of the "flowability" of an oil. More specifically, it is the property of an oil to develop and maintain a certain amount of shearing stress dependent on flow, and then to offer continued resistance to flow. Thicker oils generally have a higher viscosity, and thinner oils a lower viscosity. This is the most important property for an engine. An oil with too low a viscosity can shear and lose film strength at high temperatures. An oil with too high a viscosity may not pump to the proper parts at low temperatures and the film may tear at high rpm.

 

The weights given on oils are arbitrary numbers assigned by the S.A.E. (Society of Automotive Engineers). These numbers correspond to "real" viscosity, as measured by several accepted techniques. These measurements are taken at specific temperatures. Oils that fall into a certain range are designated 5, 10, 20, 30, 40, 50 by the S.A.E. The W means the oil meets specifications for viscosity at 0 F and is therefore suitable for Winter use.

[Agogo]

thumbs up 4 e pump session....will c hw e plannin goes then.

[FunkyChicken]

hey i agogo i met u at jurong izzit the other day?? i waved at u??

 

aniwae need more i/p from u all regarding the pump petrol session via 2nd link.

 

so far 2 guys said before midnight.

[Aalex82]

Originally posted by MiddleAgedBiker@May 21, 2007 06:28 pm

Just for friendly discussion, no hard feelings hor...

 

The only statement I disagreed with you is this:

the numbering is to inform u when the engine oil freeze up when hit certain low temp..

 

The numbers do not denote when the engine oil freezes up, but the viscosity (or flowability) rating of the oil at low temperatures.

 

Taken from http://www.dictionary.com

 

Viscosity:

the property of a fluid that resists the force tending to cause the fluid to flow.

 

Taken from another engine oil website (emphasis on bolded and underlined part):

 

Viscosity is a measure of the "flowability" of an oil. More specifically, it is the property of an oil to develop and maintain a certain amount of shearing stress dependent on flow, and then to offer continued resistance to flow. Thicker oils generally have a higher viscosity, and thinner oils a lower viscosity. This is the most important property for an engine. An oil with too low a viscosity can shear and lose film strength at high temperatures. An oil with too high a viscosity may not pump to the proper parts at low temperatures and the film may tear at high rpm.

 

The weights given on oils are arbitrary numbers assigned by the S.A.E. (Society of Automotive Engineers). These numbers correspond to "real" viscosity, as measured by several accepted techniques. These measurements are taken at specific temperatures. Oils that fall into a certain range are designated 5, 10, 20, 30, 40, 50 by the S.A.E. The W means the oil meets specifications for viscosity at 0 F and is therefore suitable for Winter use.

this i understand cos i oso study fluid mechanic before..

i call it as freeze up cos is not flowing to protect and lub the engine internally..

juz like a ice..

 

[LouisB]

great dispute...

keep on ..it may enhance our view on tis ..

[Agogo]

Originally posted by FunkyChicken@May 22, 2007 03:15 am

hey i agogo i met u at jurong izzit the other day?? i waved at u??

 

aniwae need more i/p from u all regarding the pump petrol session via 2nd link.

 

so far 2 guys said before midnight.

yo bro...wen isit ar tat u saw me?time n date if u cn remember?dun recall ar bro...btw u pump at gp rite testerday if 1 of ur frend...1 2 say hi but malu lar...haha...

[Aalex82]

Originally posted by CBR379@May 22, 2007 08:13 am

great dispute...

keep on ..it may enhance our view on tis ..

u always like that..

keep eating popcorn and see show..

u oso contribute yr knowledge lah..

[LouisB]

Originally posted by Aalex82@May 22, 2007 01:58 pm

u always like that..

keep eating popcorn and see show..

u oso contribute yr knowledge lah..

i know nut abt engine .....

[Aalex82]

Originally posted by CBR379@May 22, 2007 04:42 pm

i know nut abt engine .....

dun bluff lor..

u ride bike longer than mi..

[Dire Straits]

Hi Guys... anyone know anyone selling 954 or 919 ? pls pm me ty.

[GRassCuTTeR]

Originally posted by Aalex82@May 22, 2007 06:58 pm

dun bluff lor..

u ride bike longer than mi..

he not bluffing... he really know nut about engine. but if u ask him eat peanut, No. 1 lor ~!!

[FunkyChicken]

Originally posted by Dire Straits@May 22, 2007 09:18 pm

Hi Guys... anyone know anyone selling 954 or 919 ? pls pm me ty.

hey boss pm this guy......929 for sale.

 

http://www.singaporebikes.com/forum/index....howtopic=163194

 

[Aalex82]

Originally posted by GRassCuTTeR@May 22, 2007 10:56 pm

he not bluffing... he really know nut about engine. but if u ask him eat peanut, No. 1 lor ~!!

oh..

i din noe i hav a monkey friend..

[LouisB]

Originally posted by Aalex82@May 23, 2007 07:58 am

oh..

i din noe i hav a monkey friend..

Yes, soon u will b one of us if u mess wif us long innuf...

[Aalex82]

Originally posted by CBR379@May 23, 2007 08:12 am

Yes, soon u will b one of us if u mess wif us long innuf...

lucky i dun eat peanuts or bananas..

if i become a monkey..

sure strave to death..

[takala21]

Originally posted by FunkyChicken@May 21, 2007 01:00 am

hey bros.....im planning for a pump petrol session at 2nd link. need support once again frm u all, hopefully full squad like the yishun dam... hehehhe

 

juz need ur opinion:

 

-weekdays or weekends

-after midnight or before

than i shall confirm the date asap.

 

:thumb:

weekday/ end no problem..

i can make it b4 midnight .

u hav my support babe ~

[takala21]

Originally posted by FunkyChicken@May 23, 2007 01:59 am

hey boss pm this guy......929 for sale.

 

http://www.singaporebikes.com/forum/index....howtopic=163194

 

hey babe!

u refering to replica issit ?

[colintee]

wah takala21, went pg nv jio, 31/5 anione gg? i may be there...

[Aalex82]

wah takala21, went pg nv jio, 31/5 anione gg? i may be there...

 

i going on the 3rd june..

think going to give a miss on 31st may..

too siong for my pocket..

[colintee]

i going on the 3rd june..

think going to give a miss on 31st may..

too siong for my pocket..

 

ey alex, weekday cheaper...