Honda NSR150SP Riders

[kwyjibo]

Originally posted by ravenSP@Mar 2 2006, 02:52 AM

gekokujyou: explain why rvf has more stability?

As I said b4, an RVF is a V4.

 

A V-engine is more stable than an Inline due to e way its built (for simplicity case, i will assume that e angles of e V-engine n e no. of cylinders do not play a part in stability.)

Imagine a V shape and compare it with an I shape.

A V shape is obviously wider n flatter (lower height) than an I shape which is upright.

Something which is wider and flatter/of lower height will of course be more stable since it has a lower CG (centre of gravity).

(Try to imagine e picture and you will get it.)

 

Another point being e Inline is longer n takes up more engine space than a V due to its configuration (assuming that both e Inline n V has e same no. of cyliners).

The smaller V-engine will b able to b mount lower in e bike. When e engine of a bike is mounted lower, defintely e CG of e bike will b lower and hence e bike will b more stable.

[kwyjibo]

Originally posted by ravenSP@Mar 2 2006, 02:52 AM

its expensive. buy mine! 2.6k machine i sell u

 

just did so many thing somemore!

 

 

im still thinking if i shld push it in to shop or not.. HMM

 

 

 

gekokujyou: explain why rvf has more stability? and why did you do grounding on... your sp? LOL

Mm i dont understand ur reaction.

There's perfectly nothing wrong with doing grounding on a 2b bike since it requires electricity to operate its parts too, just like e bigger bikes, although e electrical consump may not b that high.

I did a 4pt grounding which is sufficient for our small bike. I did not overdo it like having a 6pt grounding like e bigger bikes.

Furthermore its fully justified since my SP is 5 yrs old n e wirings r old n kinda faulty.

There was no rewiring done b4 on my bike n i feel that rewiring is not worth e money n e time.

 

Okay, maybe u thought that grounding is to limit voltages due to lightning, line surges or unintentional contact with higher voltage lines?

Hahas these were my initial thoughts too (damn malu), so i went to find out more.

 

Grounding actually has another purpose which is to stabilize voltage.

It acts e same as a voltage stabiliser, which is an electronic device able to deliver relatively constant output voltage when input voltage and load current changes over time.

So since voltage now is constant, u will have a stronger spark delivered by ur spark plug, resulting in smoother engine operations.

Other effects including brighter headlights n faster blinking of ur signal lights (sometimes it may c*** up ur signal light causing it to blink rapidly).

May have some effect on FC since ur engine do not need to work as hard now to supply e lost voltages.

[aam_bdg]

Hello bros,..

anybody knows the type of rear bearing for sp?

i mean, the bearing for rear tyre, pro bearing.

because its hard to find it in my country.

thanks before..

[ravenSP]

Originally posted by gekokujyou@Mar 2 2006, 02:30 PM

As I said b4, an RVF is a V4.

 

A V-engine is more stable than an Inline due to e way its built (for simplicity case, i will assume that e angles of e V-engine n e no. of cylinders do not play a part in stability.)

Imagine a V shape and compare it with an I shape.

A V shape is obviously wider n flatter (lower height) than an I shape which is upright.

Something which is wider and flatter/of lower height will of course be more stable since it has a lower CG (centre of gravity).

(Try to imagine e picture and you will get it.)

 

Another point being e Inline is longer n takes up more engine space than a V due to its configuration (assuming that both e Inline n V has e same no. of cyliners).

The smaller V-engine will b able to b mount lower in e bike. When e engine of a bike is mounted lower, defintely e CG of e bike will b lower and hence e bike will b more stable.

im not challenging you or anything. this has been discussed before but i'd like you to explain why you said that.

 

yeah is a very compact engine. its also a bit heavier. yes you are correct in your mentioning that you'll be able to mount the engine lower on the bike hence lower cg. but wait, is that all? lower.. lower cg and? you were saying for simplicity's sake you'll assume the number of cylinders do not play a part in stability? wait, inline4? v4? know what i mean?

its not only that, the firing characteristics of the v4 also gives the rear wheel more grip(it has to do with the timing the power goes to the wheel or something like that). so you also have that to thank for cornering stability. but i dont really think it makes that much of a difference in stability on straights (you mentioned in one of ur prev posts).

 

but wait, have you ridden a rvf before? if you have, you'll know its not only the v4 engine, its the whole bike thats been built very solidly. its still (in my eyes) one of the best bikes ever built. the suspension, the geometry, the engine, everything makes it a very stable bike for bends. its one of the best suited 'street' bikes for sg.

 

 

 

my reaction? okay, i apologise for that 'reaction'. but imo, i think that its NO point grounding your 150. its a stroker after all. you wont really feel a difference. old wiring? nothing beats changing the whole wire harness ^^ yes its to stabilise your voltage, but with only 1 plug, it doesnt make THAT much of a difference. for our (im talking about my sp here) bikes, i feel theres no point wasting this kinda $. its like why some ppl put voltmeters on their sp, for what use? lol. if you put it on a bigger bike, where more electricity is needed and you wana monitor your battery health in order to know when to change the battery to prevent not being able to use the electric start, fine. but okay, im just stating my own opinion

 

Okay, maybe u thought that grounding is to limit voltages due to lightning, line surges or unintentional contact with higher voltage lines?

Hahas these were my initial thoughts too (damn malu), so i went to find out more.

 

nice. it never crossed my mind.

[Cristiano83]

Originally posted by gekokujyou@Mar 2 2006, 02:20 PM

Bro our bike do not need batt to start.

No need push start when e batt die.

Just kick as normal, however u have to switch off ur headlight whenever u r idling n throttle abit.

Yup shinko one is abit purple blue colour with a red led light which indicates that its charging.

Gek.... I got kick it ah.. But cannot start leh... Its like a dead fish....! Lol

[han7]

Originally posted by rinkenkyo@Mar 2 2006, 12:50 AM

cheap one la...IRC...but the tread i see like not bad leh...haha...

eh bro...lol y u buy irc tyres ? i can giv u mine for free..new some more

[han7]

Originally posted by jonse@Mar 2 2006, 03:52 AM

i got k&n air filter... who wanna buy??

wei bro...gimme ur hp no..i col u we meet...need it urgently..

[RollinMao]

eh abt the inline and v4 engine, maybe u can go hou heng at ah gua lane and ask ah hao. he will give u details abt rvf and cbr. i asked him before but i oni remember cbr have better top...

[don_kokchin]

Can anyone tell me what is the rating for IRX tires?

My friend riding SP, wanna change tires...

Anyone recommend any tires? he using bridgestone... any better choice?

[kwyjibo]

Originally posted by ravenSP@Mar 2 2006, 05:36 PM

im not challenging you or anything. this has been discussed before but i'd like you to explain why you said that.

 

yeah is a very compact engine. its also a bit heavier. yes you are correct in your mentioning that you'll be able to mount the engine lower on the bike hence lower cg. but wait, is that all? lower.. lower cg and? you were saying for simplicity's sake you'll assume the number of cylinders do not play a part in stability? wait, inline4? v4? know what i mean?

its not only that, the firing characteristics of the v4 also gives the rear wheel more grip(it has to do with the timing the power goes to the wheel or something like that). so you also have that to thank for cornering stability. but i dont really think it makes that much of a difference in stability on straights (you mentioned in one of ur prev posts).

 

but wait, have you ridden a rvf before? if you have, you'll know its not only the v4 engine, its the whole bike thats been built very solidly. its still (in my eyes) one of the best bikes ever built. the suspension, the geometry, the engine, everything makes it a very stable bike for bends. its one of the best suited 'street' bikes for sg.

 

 

 

my reaction? okay, i apologise for that 'reaction'. but imo, i think that its NO point grounding your 150. its a stroker after all. you wont really feel a difference. old wiring? nothing beats changing the whole wire harness ^^ yes its to stabilise your voltage, but with only 1 plug, it doesnt make THAT much of a difference. for our (im talking about my sp here) bikes, i feel theres no point wasting this kinda $. its like why some ppl put voltmeters on their sp, for what use? lol. if you put it on a bigger bike, where more electricity is needed and you wana monitor your battery health in order to know when to change the battery to prevent not being able to use the electric start, fine. but okay, im just stating my own opinion

 

 

 

nice. it never crossed my mind.

Bro its nice to have a friendly discussion once in awhile.

Its all in the good name of acquiring more knowledge.

 

 

you were saying for simplicity's sake you'll assume the number of cylinders do not play a part in stability? wait, inline4? v4? know what i mean?

 

Of course if we built e V and e Inline to e exact same specifications (same displacement, same valves, same intake n exhaust system, etc) they would most likely perform nearly identical.

Displacement is still displacement.

 

However, to give a better comparision n a clearer picture, let's do a more detailed comparision.

We will compare e V4 with e Inline4:

 

The Inline4 is e most common configuration currently in use n it has many advantages.

It can produce e required amounts of power fairly easily n its smaller cylinders allow for more efficient combustion, aiding rideability and FC.

It needs only half as many camshafts as a V (if using overhead cams), which can lighten things slightly.

However, it is e widest of all possible motor configurations n this increases e bike's frontal area (creating drag which reduces top speed and slows acceleration at high speeds).

It uses a very long crankshaft, which can produce excessive torsional vibrations, leading to reduced reliability of some components.

In a air-cooled engine, it is sometimes harder to cool.

 

The V4 seems at first glance to b ideal.

It can produce e same power as e inline four, but is about 35% narrower, aiding aerodynamics.

It can be mount lower due to e way its shaped, hence lowering e CG of e bike.

It uses a much shorter crankshaft than e inline four.

Its typical firing interval has been theorized to give an advantage in traction and rideability over the traditional firing intervals of an Inline4 (but this advantage seems to have been negated by e modified firing intervals of Kawasaki and Yamaha's Inline4s, which mimic that of a V4. Nevertheless, its no surprise that Ducati and Suzuki both chose e V4 configuration for their MotoGP race machines.)

However, e production cost is higher.

 

 

but i dont really think it makes that much of a difference in stability on straights (you mentioned in one of ur prev posts).

 

I m sorry cos i forgot to add in more assumptions that i made to make this a fair comparision between e 2 types of engine configurations.

This is a very strong pt if we just assume counter-balancing technologies, such as balancing shaft or e way manufactuers like Yamaha n Kawasaki modified their Inlines to mimic e firing interval of a V only in recent yrs, are not taken into consideration.

With such technologies included in our modern day bikes, defintely a normal rider like us will not b able to feel much of a difference.

 

 

yes its to stabilise your voltage, but with only 1 plug, it doesnt make THAT much of a difference. for our (im talking about my sp here) bikes, i feel theres no point wasting this kinda $.

 

On grounding for 2b bikes, i agree that e difference may not b all that great.

At $30, i feel that its significantly cheaper n easier than rewiring/adding a voltage or impedence stabiliser.

Anyway, e bottom line is that a rider’s emotional preference is, as is often e case, e only real measuring stick that matters.

Is it not?

[NightPhantom]

i have simply no damn idea of what u all saying... power siah..

[ChEnZ]

whoa man. i didn't know my question could lead up to a verbal war. LOL. But still, i agree with bert. Having a practical experience on the bike is always better than theory. I'm not saying theory doesn't help, but for some people who don't understand a single word you're saying, there's no point in saying so much. I understand a little only. Which bike is running on inline?

[ravenSP]

Originally posted by ChEnZ@Mar 3 2006, 08:11 AM

whoa man. i didn't know my question could lead up to a verbal war. LOL. But still, i agree with bert. Having a practical experience on the bike is always better than theory. I'm not saying theory doesn't help, but for some people who don't understand a single word you're saying, there's no point in saying so much. I understand a little only. Which bike is running on inline?

well, maybe this will clear things up a lil. gekokujyou cut and pasted some stuff from here i suppose... but thats only half of the picture. maybe if you read the whole article it'll get a lil clearer (its very informative for me also).

 

http://www.motorcycledaily.com/21february0...togpengines.htm

 

most modern bikes are running on inline4s now. almost all the 4stroke sportsbikes u see on the road are inline4s... r1/r6.. cbr4/6/1.. busa.. blah blah. i dont know about cruisers, but i think only the vfr800 is still running on a v4 engine? i forgot lar...

 

if you were to ask me to choose between the 400s (if all were in same condition), i'd take the rvf anyday. its not only for the v4 engine, but for its overall build. as i mentioned before, its one of the best built bikes ever (imho of course). i tried the cbr4 (all models even hurricane), the gsx4 (i duno much about it but i tried 1 before), i sat on the zx4 (never rode it thou).

 

i still feel that the rvf posture is so much better for taking corners than the rest of the 400s. i say again, its personal preference, cause i DONT like a top speed 'shootout'. i want flickability, i want stability in a corner, i want comfort when riding the bike. i got all of these in the rvf. although the rvf has a meatier punch in midrange then the rest, i still will lose out at the top end when the bike loses power a lil. but if you want the bike for riding in the street, it'll be perfect cause you dont really high rev to redline all the time while taking a corner yes? i still miss my rvf, its still at albert motor, awaiting marius(barce) to get his 2a and get the bike.

 

 

On grounding for 2b bikes, i agree that e difference may not b all that great.

At $30, i feel that its significantly cheaper n easier than rewiring/adding a voltage or impedence stabiliser.

Anyway, e bottom line is that a rider’s emotional preference is, as is often e case, e only real measuring stick that matters.

Is it not?

 

yeah true, if you feel happy with it.. why not? of course i have my own opinion on things but hey, my bad for that earlier 'lol' post.

[RollinMao]

power.... informative.

[DM]

LOL COPY AND PASTE

 

how original. no credit to the website too

[rinkenkyo]

Originally posted by flykite@Mar 2 2006, 12:52 AM

2nd hand IRC tyres???

Not Second Hand One...New One Leh...

[rinkenkyo]

Originally posted by infoboy@Mar 2 2006, 06:26 PM

eh bro...lol y u buy irc tyres ? i can giv u mine for free..new some more

You Nv Say Early...i Buy Already///LOlx////

[rinkenkyo]

Originally posted by NightPhantom@Mar 3 2006, 01:32 AM

i have simply no damn idea of what u all saying... power siah..

No idea what they argueing abt also...

[kwyjibo]

Originally posted by ravenSP@Mar 3 2006, 01:26 PM

well, maybe this will clear things up a lil. gekokujyou cut and pasted some stuff from here i suppose... but thats only half of the picture. maybe if you read the whole article it'll get a lil clearer (its very informative for me also).

 

http://www.motorcycledaily.com/21february0...togpengines.htm

 

most modern bikes are running on inline4s now. almost all the 4stroke sportsbikes u see on the road are inline4s... r1/r6.. cbr4/6/1.. busa.. blah blah. i dont know about cruisers, but i think only the vfr800 is still running on a v4 engine? i forgot lar...

 

if you were to ask me to choose between the 400s (if all were in same condition), i'd take the rvf anyday. its not only for the v4 engine, but for its overall build. as i mentioned before, its one of the best built bikes ever (imho of course). i tried the cbr4 (all models even hurricane), the gsx4 (i duno much about it but i tried 1 before), i sat on the zx4 (never rode it thou).

 

i still feel that the rvf posture is so much better for taking corners than the rest of the 400s. i say again, its personal preference, cause i DONT like a top speed 'shootout'. i want flickability, i want stability in a corner, i want comfort when riding the bike. i got all of these in the rvf. although the rvf has a meatier punch in midrange then the rest, i still will lose out at the top end when the bike loses power a lil. but if you want the bike for riding in the street, it'll be perfect cause you dont really high rev to redline all the time while taking a corner yes? i still miss my rvf, its still at albert motor, awaiting marius(barce) to get his 2a and get the bike.

 

 

 

 

yeah true, if you feel happy with it.. why not? of course i have my own opinion on things but hey, my bad for that earlier 'lol' post.

Yup i used e paragraph from e website so as to substantiate my previous postings which were not as detailed.

Really very sorry cos I did not expect u to believe that i wrote it, so i did not bother to credit e website.

I thought e language difference was qte obvious.

Anyway thanks for thinking so highly of me.

 

I have no personal preferences on whether e V or e Inline is better as i believe e purpose of ur ride determines e engine type u should go for.

However no offence but i defintely prefer e smoother engine sound of an Inline (engine sound is a touchy issue).

 

I rode a gsxr400 on e road b4 a few times.

I regret not being able to give my personal comparision between e other 400cc sports bikes since i did not get to try e other bikes.

I firmly believe in e case that unless u r involved in a serious racing programme, personal preference is still e no.1 consideration when u r choosing a bike.

However, if u r unable to ride another bike for long n since everybody has their own opinions, theory will b e 2nd best consideration one can use for choosing a bike.

Btw i m thinking of an rs250 for my 2a.

I m totally in love with e look of e twin arrow.

 

Truthfully, i m just glad i found someone to hold such a discussion.

Hope u dont think this is a verbal war which both sides want to win.

Yup.

[DM]

language difference? english and ? russian ? btw, when someone uses another person's material online regardless of wheter it is copyrighted or not, it is only polite to indicate where it was extracted from. plenty of so-called 'engineers' and 'professors' with imaginary phds copy and paste in their stupid posts so hey that's the norm here. when i read that, i wondered why some paragraphs were so rhetorical inclined while the other's sounded plain dumb so yeah more or less knew that was someone else's words. just didn't shoot the gun without any proof no offence but you replaced all the 'the's with 'e' in the copied text, an obvious attempt to pass it off as your own. how remarkable

 

btw, the cbr400 has the lowest ground clearance compared to all the other bikes in the 2a sports category. food for thought, it's an inline 4.

[kwyjibo]

Originally posted by enfant@Mar 3 2006, 09:16 PM

language difference? english and ? russian ? btw, when someone uses another person's material online regardless of wheter it is copyrighted or not, it is only polite to indicate where it was extracted from. plenty of so-called 'engineers' and 'professors' with imaginary phds copy and paste in their stupid posts so hey that's the norm here. when i read that, i wondered why some paragraphs were so rhetorical inclined while the other's sounded plain dumb so yeah more or less knew that was someone else's words. just didn't shoot the gun without any proof no offence but you replaced all the 'the's with 'e' in the copied text, an obvious attempt to pass it off as your own. how remarkable

Why do i get e feeling that u r trying to flame me?

Hahas after seeing countless verbal wars in sbf, finally i m engaged in one myself too.

Anyway, i totally agree with u that alot of pple plagarize e internet.

Most of e time u r able to tell e difference in lang.

I apologized for not not bothering to credit e website n giving u e false impression that i m also an "engineer".

Btw e ironic thing is that i take mechanical engineering in NTU.

 

Why i replaced all e "the" with "e" n other replaceable words is cos i retyped e whole piece of information myself as a way of memorising them.

Rewriting is just a practise which i employed to aid in memorisation.

Knowledge is power.

 

You can say that what i said was to defend myself after being "caught" red handed.

If u r here to share valuable information, i defintely welcome that but if u want to put me down as a loser who copys from web sites n pass them off as their own, all i can say to u is that i fully regret my action which causes u to doubt my credibility.

 

Hopefully this topic of plagarizing will end here.

 

Last thing,

i wondered why some paragraphs were so rhetorical inclined while the other's sounded plain dumb

 

I do not agree with u that my previous posts sounded plain dumb.

Defintely they r not as detailed since i do not have a photographic memory, but i can say that they r accurate to e best of my memory.

Please do not insult n try to put me down in such a manner.

If you think that whatever i have posted is wrong, feel free to point them out. I m always willing to engage in productive discussions.

[ravenSP]

Originally posted by gekokujyou@Mar 3 2006, 08:22 PM

Yup i used e paragraph from e website so as to substantiate my previous postings which were not as detailed.

Really very sorry cos I did not expect u to believe that i wrote it, so i did not bother to credit e website.

I thought e language difference was qte obvious.

Anyway thanks for thinking so highly of me.

 

yeah first glance told me you got it from somewhere, im just saying that article is a better read. its really quite informative and easier to read.

 

 

Truthfully, i m just glad i found someone to hold such a discussion.

Hope u dont think this is a verbal war which both sides want to win.

Yup.

 

im also taking it as a discussion, verbal war? harrr we're not talking also! typing war? :/ win what? got prize if i win ma? haha

[ravenSP]

Originally posted by enfant@Mar 3 2006, 09:16 PM

btw, the cbr400 has the lowest ground clearance compared to all the other bikes in the 2a sports category. food for thought, it's an inline 4.

u sure? maybe someone needs to lose some weight

[kwyjibo]

Originally posted by ravenSP@Mar 3 2006, 09:58 PM

yeah first glance told me you got it from somewhere, im just saying that article is a better read. its really quite informative and easier to read.

I did not post e whole article because most of e information there did not pertain to our discussion.

 

So do u have informative webbies to share?

I have lots of interesting overseas forum's addresses.

They teach alot abt DIY.

Anyway u r in my msn acc.

[kwyjibo]

http://www.vsource.org/VFR-RVF_files/BModelinfopage.htm

 

This website is super informative on e CBR400 n e RVF.

U can compare e specs n dimensions of e 2 bikes.