Honda NSR150SP Riders

FSQ · February 25, 2008

hey guys,

I was wondering if any of you guys paint the tank yourself? What paint did you use and which primer/undercoat. I want to do a white strip around my carbon tank.

Also has anyone here done engine modifications like porting (grinding out material) or engine tuning? Whats the max HP possible 4 SP..

thx.

ZeroKenshin · February 25, 2008

hey guys,

I was wondering if any of you guys paint the tank yourself? What paint did you use and which primer/undercoat. I want to do a white strip around my carbon tank.

Also has anyone here done engine modifications like porting (grinding out material) or engine tuning? Whats the max HP possible 4 SP..

thx.

hmmm .. i wouldnt' paint the tank myself ~ leave tat to the mechanics would be wiser.

engine modification ah, hmm only grinding and sanding my block at the workshop last week to close all possible gap between the block and the casket.. max hp for SP i oso dunno.. think 60? o.o

2k · February 25, 2008

wa sp can get 60 hp ?? ? ?

the older version of gsxr400 b4 the japan restriction law was oni 59 hp ..

sp 60 ?? vtr sp-1 ah ? lol

house · February 25, 2008

ya lo...i heard ur red hair now 0range le ar...btw...wat is come mi out???lolx

ya lo ya lo...ehm ehm ehm....

think ahboy got....u try goin there and ask...

where's my name...lols...jkjk....i nvr help much aso...

eh wat wat... i friendly one ok.. juz joking around only..

th2om8as7 · February 25, 2008

eh wat wat... i friendly one ok.. juz joking around only..

like tt can ar????

th2om8as7 · February 25, 2008

any1 wan go jb tonight???? around 11 go in...msg me 81882605

FSQ · February 25, 2008

ha ha thx for the replies.

Man 60hp!

Actually i should have made my original post more clear when i said porting.

Porting refers to the modification of the transfers and the inlets to increase air/fuel flow and the widening of the transfer ports for various tuning.

Flowing is also similar where the inner surface of the liquid fuel channels, such as transfers are smoothed to a 800-1000 grit. Exhaust ports are smoothed to a mirror finish, so 2000 wet.

If there is a SP racing class in SG then there would exist this kinda stuff it is very specialised and difficult to do which makes it more worth the while for racers.

Anyone know who has done this kindof thing to their machine?

compfused · February 25, 2008

ha ha thx for the replies.

Man 60hp!

Actually i should have made my original post more clear when i said porting.

Porting refers to the modification of the transfers and the inlets to increase air/fuel flow and the widening of the transfer ports for various tuning.

Flowing is also similar where the inner surface of the liquid fuel channels, such as transfers are smoothed to a 800-1000 grit. Exhaust ports are smoothed to a mirror finish, so 2000 wet.

If there is a SP racing class in SG then there would exist this kinda stuff it is very specialised and difficult to do which makes it more worth the while for racers.

Anyone know who has done this kindof thing to their machine?

If you're really from where you location states..Then wow I'm really surprised..

I dunno much but it seems you're gettin all this info to make the bike faster..I assume you ride as a hobby rather than transport like anyone in SG..So you won't really mind about havin a bad FC for your bike..Good luck for your quest..

FSQ · February 25, 2008

Well I actually ride to commute. Which is 30km one-way to uni each day.

The reason I want to find out is so that I can perhaps increase power without loss of FC.

I think I can do this by increasing the mid-range torque, hence ride in lower revs...say 4k - 5k and have the same pull as at 6k -7k in stock setup.

I figure the start stop traffic will mean its more rideable due to more pull.

I'm still tryin to find more info on the racing stuff coz thats where people can afford to spend money on this kinda tuning and I can work out where to start and make blueprints for the porting.

Also I was wondering how you guys get your bikes painted, especially tank. DO you buy new tank or is it sanded down to the primer and repaint?

Also do you buy new fairings? Or paint over the SP paintwork :S ??

thx in advance!

compfused · February 25, 2008

Well I actually ride to commute. Which is 30km one-way to uni each day.

The reason I want to find out is so that I can perhaps increase power without loss of FC.

I think I can do this by increasing the mid-range torque, hence ride in lower revs...say 4k - 5k and have the same pull as at 6k -7k in stock setup.

I figure the start stop traffic will mean its more rideable due to more pull.

I'm still tryin to find more info on the racing stuff coz thats where people can afford to spend money on this kinda tuning and I can work out where to start and make blueprints for the porting.

Also I was wondering how you guys get your bikes painted, especially tank. DO you buy new tank or is it sanded down to the primer and repaint?

Also do you buy new fairings? Or paint over the SP paintwork :S ??

thx in advance!

I dunno much..But my guess is at 4-5k you will still experience some "boggin/stutterin"..Portin will prolly draw in more petrol..Unless you are able to calculate the proper/correct ratio to make the fuel burn more effectively (complete combustion)..Maybe if you are able to do that then you would still be able to get rather good mileage..But its merely just a thought..You sound like an engineerin student..So maybe you could prolly find a way to make it work?

FSQ · February 25, 2008

Yeah, you guessed right Eng student indeed.

My friend is actually modifying his PX200E in the same manner so he is quite experienced.. he is expecting a increase from 12HP to about 30HP. But ofcourse he will suffer a lot of FC, which dusnt matter for him as its purely for fun.

In my case you maybe right about the FC to go up per rev, but it will be running at close to 50%-60% the revs so it maybe possible to get more low down power without FC loss.

compfused · February 25, 2008

Yeah, you guessed right Eng student indeed.

My friend is actually modifying his PX200E in the same manner so he is quite experienced.. he is expecting a increase from 12HP to about 30HP. But ofcourse he will suffer a lot of FC, which dusnt matter for him as its purely for fun.

In my case you maybe right about the FC to go up per rev, but it will be running at close to 50%-60% the revs so it maybe possible to get more low down power without FC loss.

Your friend must be really good..Tho I still think there will be FC loss due to the fact that 2strokers aren't the best at burnin fuel up completely/efficiently as a 4 stroker would..My guess is by portin..More fuel will go in and seein how 2 strokers aren't able to effectively burn the fuel..More wasted fuel will be "produced" out hence explainin why there might still be FC loss..Do post of the results when you're done with it..

arju4n · February 25, 2008

me n my innoncent little lamb 1st collision encounter -.-!! was banged just outside my station by a sunny....thanks god its near stopping..im alive~~~~~~

ost28 · February 25, 2008

any1 wan go jb tonight???? around 11 go in...msg me 81882605

i wan go ..

FSQ · February 25, 2008

If I cant find enough information i cant do it. But maybe later down the track.

Can you tell me about spraying my tank also? What is involved on the technical side? undercoats, primers, paints? type etc.?

I'm going for a white stripe around my carbon tank pad.

compfused · February 25, 2008

If I cant find enough information i cant do it. But maybe later down the track.

Can you tell me about spraying my tank also? What is involved on the technical side? undercoats, primers, paints? type etc.?

I'm going for a white stripe around my carbon tank pad.

Air brush? Or just aerosol spray cans?

I can't be of much help coz I still can't visualize what you want for the tank..But an alternative I can give you is to just paste a white sticker around it..

th2om8as7 · February 25, 2008

i wan go ..

then we meet at ju there lo...at 11pm..ok?

phase_one · February 25, 2008

--------------------------------------------------------------------------------

MALAYSIAN SUPER SERIES CHAMPIONSHIP 2008

Sportbike Cup Championship

TECHNICAL REGULATIONS

APPENDIX 1

A. GENERAL

This Championship is open to all bikes of:

1. Up to 249cc two cylinder two stroke engines*

2. Up to 399cc four cylinder four stroke engines

3. Up to 668cc two cylinder four stroke engines

4. Up to 800cc single cylinder four stroke engines

Bikes must be in original showroom condition in every detail. Only

changes allowed in â€œSpecific Modificationsâ€ would be allowed. Everything

that is not authorised and prescribed in these rules is strictly forbidden

and may merit exclusion.

Bikes may be brought up to the latest specification of that particular model.

A workshop manual pertaining to the model MUST be produced upon registration for retention by the race organiser.

*Certain models are excluded from this race. They include the Honda NSR250 SE and SP (dry clutch), the Yamaha TZR250 RR-SP (dry clutch) and the Suzuki RGV250 SP (dry clutch).

B. SPECIFIC MODIFICATIONS

1. Engine

1. Standard OEM pistons must be used. Pistons that are available as

oversize repair parts in the manufacturerâ€™s part catalogue may be

used. The original number of rings must be retained.

2. Pistons may NOT be modified or lightened.

3. Cylinder heads may NOT be ported or polished.

4. The cylinder barrel may NOT be machined or modified internally.

5. The number and type of cylinder base gaskets are free.

6. The cylinder head may NOT be internally machined or modified.

7. The type of head gasket is free.

8. Compression ratio is free (two strokes ONLY).

9. Ignition advancers are NOT allowed.

10. The spark plug and HT lead are free.

11. Exhausts are free. Exhaust wrapping is NOT allowed.

12. The CDI unit /ignition unit may be modified or changed.

13. The crankshaft and connecting rod may NOT be polished, ligthened or modified.

14. Starter motors (where fitted) MUST be retained. Kickstarters may be removed.

15. The crankcase / gearbox casings, ignition, clutch and generator covers may be protected by additional means, i.e. covers made of stainless steel or carbon kevlar composites.

16. ALL drain plugs and caps MUST be lockwired.

17. Any type of lubricant is allowed.

18. Only WATER to be used in cooling systems. No coolant allowed.

19. A functioning kill switch MUST be fitted on the handlebar.

2. Carburetion

1. The ORIGINAL carburetor/throttle body may NOT be internally modified.

2. The throttle slide/s, springs, needles and jets are free.

3. The carburettor spacer may NOT be internally modified.

4. Reed valves are free (two strokes ONLY). Reed cages MUST remain standard.

5. The throttle twist grip MUST have self-closing action.

6. Piggyback injection systems such as Power Commanders are allowed.

7. Stand alone injection systems such as Wolf 3D are NOT allowed.

3. Gearbox / Clutch

1. The internal gearbox ratios must NOT be changed

2. The final drive sprocket and rear wheel sprocket are free in number of teeth and chain size. The chain size must be compatible with the sprockets fitted to the bike.

3. The type (wet/dry) and number of clutch plates must NOT be changed. However the springs and friction material are free.

4. Quickshifters are NOT allowed.

4. Chassis / Bodywork

1. The original chassis must NOT be altered in any way with the exception of the footrest mountings.

2. Handlebars may be changed provided they are of the same dimensions of the original

3. Fairing, bodywork and mudguards may be replaced with exact duplicates of the original parts. The material may be changed

4. The footrests may be modified or changed.

5. Fitting of non-standard brackets and gear linkage system is permitted.

6. Passenger footrests may be removed.

7. Centre and side stands may be removed.

8. Mudguards may be modified removed or replaced

9. The part of the chassis that holds the seat may be modified to fit a solo race type seat.

10. A duplicate of transparent material of any colour may replace the windscreen.

11. The original combination of instrument and fairing brackets may be replaced.

12. The instruments may be removed.

13. All form of lighting and/or horns may be removed.

14. All lighting not removed MUST be securely taped so as not to allow glass splinters in a crash.

15. Indicators may be removed or otherwise taped.

5. Suspension

1. The original front forks may be internally modified in any way.

2. The springs and seals are free

3. The type and quantity of oil in the fork tubes is free.

4. Additional fork braces are permitted

5. Rear shock absorbers are free provided they fit on to the original mounting points.

6. Steering dampers are free

6. Brakes, Wheels & Tyres

1. Brake lining materials are free.

2. Brake hoses and fluids are free.

3. Wheels MUST remain standard specification.

4. Only road legal tyres as permitted by the organisers to be used.

5. Up to 800cc four stroke singles are exempt from the above (Sections 4, 5 and 6) ie. Chassis modifications are free.

7. Fuel

Only fuel from a pump station is considered legal for usage during the event.

8. Competition Number

1. An area 1 in front and 1 on each side of the rear seat cowl must be made available for the attachment of competition numbers.

Size : 180mm high by 180mm wide

2. Bikes without fairings must be fitted with 3 number plates of the above dimensions.

3. These plates must be mounted 1 in front and 1 on each side of the Motorcycle.

4. On bikes fitted with fairings, the headlight may be removed and a plate must cover the aperture if removed. All glass area must be taped.

9. Minimum Weight

The weight of the motorcycle without fuel but with oils and coolant must NOT be less than 120kg for a 249cc two stroke twin, NOT less than 140kg for a 399cc four stroke four and NOT less than 150 kg for a 668cc four stroke twin. 800cc four stroke singles do not have a weight limit.

Anyone want to join the race..

th2om8as7 · February 25, 2008

--------------------------------------------------------------------------------

MALAYSIAN SUPER SERIES CHAMPIONSHIP 2008
Sportbike Cup Championship
TECHNICAL REGULATIONS
APPENDIX 1

A. GENERAL

This Championship is open to all bikes of:

1. Up to 249cc two cylinder two stroke engines*
2. Up to 399cc four cylinder four stroke engines
3. Up to 668cc two cylinder four stroke engines
4. Up to 800cc single cylinder four stroke engines

Bikes must be in original showroom condition in every detail. Only
changes allowed in â€œSpecific Modificationsâ€ would be allowed. Everything
that is not authorised and prescribed in these rules is strictly forbidden
and may merit exclusion.

Bikes may be brought up to the latest specification of that particular model.

A workshop manual pertaining to the model MUST be produced upon registration for retention by the race organiser.

*Certain models are excluded from this race. They include the Honda NSR250 SE and SP (dry clutch), the Yamaha TZR250 RR-SP (dry clutch) and the Suzuki RGV250 SP (dry clutch).

B. SPECIFIC MODIFICATIONS

1. Engine

1. Standard OEM pistons must be used. Pistons that are available as
oversize repair parts in the manufacturerâ€™s part catalogue may be
used. The original number of rings must be retained.
2. Pistons may NOT be modified or lightened.
3. Cylinder heads may NOT be ported or polished.
4. The cylinder barrel may NOT be machined or modified internally.
5. The number and type of cylinder base gaskets are free.
6. The cylinder head may NOT be internally machined or modified.
7. The type of head gasket is free.
8. Compression ratio is free (two strokes ONLY).
9. Ignition advancers are NOT allowed.
10. The spark plug and HT lead are free.
11. Exhausts are free. Exhaust wrapping is NOT allowed.
12. The CDI unit /ignition unit may be modified or changed.
13. The crankshaft and connecting rod may NOT be polished, ligthened or modified.
14. Starter motors (where fitted) MUST be retained. Kickstarters may be removed.
15. The crankcase / gearbox casings, ignition, clutch and generator covers may be protected by additional means, i.e. covers made of stainless steel or carbon kevlar composites.
16. ALL drain plugs and caps MUST be lockwired.
17. Any type of lubricant is allowed.
18. Only WATER to be used in cooling systems. No coolant allowed.
19. A functioning kill switch MUST be fitted on the handlebar.

2. Carburetion

1. The ORIGINAL carburetor/throttle body may NOT be internally modified.
2. The throttle slide/s, springs, needles and jets are free.
3. The carburettor spacer may NOT be internally modified.
4. Reed valves are free (two strokes ONLY). Reed cages MUST remain standard.
5. The throttle twist grip MUST have self-closing action.
6. Piggyback injection systems such as Power Commanders are allowed.
7. Stand alone injection systems such as Wolf 3D are NOT allowed.

3. Gearbox / Clutch

1. The internal gearbox ratios must NOT be changed
2. The final drive sprocket and rear wheel sprocket are free in number of teeth and chain size. The chain size must be compatible with the sprockets fitted to the bike.
3. The type (wet/dry) and number of clutch plates must NOT be changed. However the springs and friction material are free.
4. Quickshifters are NOT allowed.

4. Chassis / Bodywork

1. The original chassis must NOT be altered in any way with the exception of the footrest mountings.
2. Handlebars may be changed provided they are of the same dimensions of the original
3. Fairing, bodywork and mudguards may be replaced with exact duplicates of the original parts. The material may be changed
4. The footrests may be modified or changed.
5. Fitting of non-standard brackets and gear linkage system is permitted.
6. Passenger footrests may be removed.
7. Centre and side stands may be removed.
8. Mudguards may be modified removed or replaced
9. The part of the chassis that holds the seat may be modified to fit a solo race type seat.
10. A duplicate of transparent material of any colour may replace the windscreen.
11. The original combination of instrument and fairing brackets may be replaced.
12. The instruments may be removed.
13. All form of lighting and/or horns may be removed.
14. All lighting not removed MUST be securely taped so as not to allow glass splinters in a crash.
15. Indicators may be removed or otherwise taped.

5. Suspension

1. The original front forks may be internally modified in any way.
2. The springs and seals are free
3. The type and quantity of oil in the fork tubes is free.
4. Additional fork braces are permitted
5. Rear shock absorbers are free provided they fit on to the original mounting points.
6. Steering dampers are free

6. Brakes, Wheels & Tyres

1. Brake lining materials are free.
2. Brake hoses and fluids are free.
3. Wheels MUST remain standard specification.
4. Only road legal tyres as permitted by the organisers to be used.
5. Up to 800cc four stroke singles are exempt from the above (Sections 4, 5 and 6) ie. Chassis modifications are free.

7. Fuel

Only fuel from a pump station is considered legal for usage during the event.

8. Competition Number

1. An area 1 in front and 1 on each side of the rear seat cowl must be made available for the attachment of competition numbers.
Size : 180mm high by 180mm wide
2. Bikes without fairings must be fitted with 3 number plates of the above dimensions.
3. These plates must be mounted 1 in front and 1 on each side of the Motorcycle.
4. On bikes fitted with fairings, the headlight may be removed and a plate must cover the aperture if removed. All glass area must be taped.

9. Minimum Weight

The weight of the motorcycle without fuel but with oils and coolant must NOT be less than 120kg for a 249cc two stroke twin, NOT less than 140kg for a 399cc four stroke four and NOT less than 150 kg for a 668cc four stroke twin. 800cc four stroke singles do not have a weight limit.

Anyone want to join the race..

cannot join....haha..not stock de...

NewUrbanMale_LSM · February 25, 2008

Your friend must be really good..Tho I still think there will be FC loss due to the fact that 2strokers aren't the best at burnin fuel up completely/efficiently as a 4 stroker would..My guess is by portin..More fuel will go in and seein how 2 strokers aren't able to effectively burn the fuel..More wasted fuel will be "produced" out hence explainin why there might still be FC loss..Do post of the results when you're done with it..

wa.

why all FSQ's post so lengthy?! Hehe. And chim...

Compfused expert seh.

me n my innoncent little lamb 1st collision encounter -.-!! was banged just outside my station by a sunny....thanks god its near stopping..im alive~~~~~~

What happened to you? MSNed you, no reply.

its original piston at xinghock the ah jie let me c.last time they sell 180rm now they say 195rm like tat.mayb ju can gt further disc?

SG change also ard that price?

fx110 · February 25, 2008

hmmm .. i wouldnt' paint the tank myself ~ leave tat to the mechanics would be wiser.

engine modification ah, hmm only grinding and sanding my block at the workshop last week to close all possible gap between the block and the casket.. max hp for SP i oso dunno.. think 60? o.o

my prediction was 50+-hp @ 13000RPM:) :)

Orange- · February 25, 2008

yay!!! i need more CC's!!!!!! hahahha

Nels0n · February 25, 2008

orange start ur 2a liao?

house · February 25, 2008

ooo.. i cant make it so early.. but i going in for petrol.. if i going i call ju u all still in i go find u guys lor.. enjoy!

NewUrbanMale_LSM · February 25, 2008

off to pillion my friend who is in need.

chaoz.

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