[Discussion] Exhaust Systems - YOSHIMURA

[Vtec1605198534]

if tong pipe work as gd as after market one, yoshi, micron all close down liao

[S4Sixty]

I'd rather u guys get a full system rather then bolt ons if u are on a serious quest for max power from ur bike.

 

Cheers !

[BOTAKQ]

My bike also hab it "poked" ...

Now seen to be more bassy and noiey then normal one ...

The bike shop also say it will pass the inspection.

But After poking the pipe , i don feel any diff. only the sound change ...

[LastDance]

go inspection yet?

[kazuhiko]

Originally posted by type G@May 31 2004, 06:47 AM

the brand is dyno jet.....

and if there's not jet kit?? what am i having in my bike then?????? :confused:

hi, after you installed the dyno jet to your super 4, will it comsume more petrol?

[BOTAKQ]

I haven go for inspection ... thats y i donno pass anot...

Think can pass , Cos it sounds like sports bike not very loud , even "tong" pipe abit louder then my also can pass liaoz ...

[William Tan]

I am using a street legal yoshi. Bought it @nd hand. What i find that it improves the response of the bike. RPM goes fast and smoother than original pipe. Bike also doesnt sound and feel so stress. If you want more power, remove restrictor in header, remove electrical powercut unit, 1 tooth smaller rear sprocket, and Iridium plugs. Tested by a friend of mine. But be warned, using iridium requires a somewhat more precise tuning of the carbs, or dyno jets. Or it will fry your pistons.

[Axo_vampire]

how much to remove the restrictor in the header? obvious to be caught ?

 

i asked motortiam, 2 shops told me header dun hv restrictor leh...

[Chinthe]

Originally posted by BOTAKQ@Jun 26 2004, 03:07 AM

My bike also hab it "poked" ...

Now seen to be more bassy and noiey then normal one ...

The bike shop also say it will pass the inspection.

But After poking the pipe , i don feel any diff. only the sound change ...

yeah lor.. only sound change

in terms of power no diff...

[Fazli]

Originally posted by Axo_vampire@Jun 27 2004, 07:30 AM

how much to remove the restrictor in the header? obvious to be caught ?

 

i asked motortiam, 2 shops told me header dun hv restrictor leh...

There is a restrictor... You remove your end can and you can see liao.

[Rikk]

Originally posted by Chinthe@Jun 27 2004, 09:47 PM

yeah lor.. only sound change

in terms of power no diff...

gotta poke more mah, poke untill you can see thru..

 

become tong pipe liao

[Rikk]

Originally posted by Fazli@Jun 28 2004, 09:04 PM

There is a restrictor... You remove your end can and you can see liao.

i din see anything except theres a part which narrows considerably, like pipe within pipe, wonder is that what you meant??

[Guest MinistryofAlex]

Originally posted by William Tan@Jun 27 2004, 05:41 AM

I am using a street legal yoshi. Bought it @nd hand. What i find that it improves the response of the bike. RPM goes fast and smoother than original pipe. Bike also doesnt sound and feel so stress. If you want more power, remove restrictor in header, remove electrical powercut unit, 1 tooth smaller rear sprocket, and Iridium plugs. Tested by a friend of mine. But be warned, using iridium requires a somewhat more precise tuning of the carbs, or dyno jets. Or it will fry your pistons.

wad type of "street legal yoshi" ?

[Guest MinistryofAlex]

like wad s4sixty says get a full-system is much better, rather wasting time asking how u tong ur pipe and having more power... personally using a full-system with racing end will give u unexpected surprize then rather trying to get some bhp by destroying ur original exhaust system.

[Chinthe]

Originally posted by Rikk@Jun 28 2004, 09:11 PM

gotta poke more mah, poke untill you can see thru..

 

become tong pipe liao

haha like dat later kenna summon liao ho....

 

aniway like 2 get 2nd had legal yoshi hor how much u tink it will cost

[talos]

Originally posted by BOTAKQ@Jun 26 2004, 02:15 PM

I haven go for inspection ... thats y i donno pass anot...

Think can pass , Cos it sounds like sports bike not very loud , even "tong" pipe abit louder then my also can pass liaoz ...

Ride beside a ROV, blow a few times, then u'll know whether the your pipe can pass or not lor

[William Tan]

Originally posted by @h-Lex@Jun 28 2004, 09:23 PM

wad type of "street legal yoshi" ?

It a Yoshimura with Titanium Catalyst. Or something like that. Got notice from Motorworld (Importer), Pipe registration number transfered to my name, and have to go for an inspection ($50) to get the 'chop'. Pipe has 2 additional tags along with the brand tag. One is the shop registration no and another is the Japanese inspection tag....

 

Carbon-fibre catalyst cost - $550 ++

Titanium Catalyst cost - $600+++++

 

Take your pick.

 

But be warned, for Super 4 Vtec, Sounds nice with faster and smoother pickup and increase in the mid-range to top. But do not expect a miracle. Ours is only a 400cc. One tremendous increase in HP, get a Class 2.

[S4Sixty]

Originally posted by William Tan@Jun 29 2004, 10:27 PM

It a Yoshimura with Titanium Catalyst. Or something like that. Got notice from Motorworld (Importer), Pipe registration number transfered to my name, and have to go for an inspection ($50) to get the 'chop'. Pipe has 2 additional tags along with the brand tag. One is the shop registration no and another is the Japanese inspection tag....

 

Carbon-fibre catalyst cost - $550 ++

Titanium Catalyst cost - $600+++++

 

Take your pick.

 

But be warned, for Super 4 Vtec, Sounds nice with faster and smoother pickup and increase in the mid-range to top. But do not expect a miracle. Ours is only a 400cc. One tremendous increase in HP, get a Class 2.

Yeah even on CL2 bike, a legal exhaust will still be pretty much restricted than a full race system.

 

No point spending money on legal systems.

 

My 2 bahts worth of nonsense !

[Guest MinistryofAlex]

Originally posted by William Tan@Jun 29 2004, 10:27 PM

It a Yoshimura with Titanium Catalyst. Or something like that. Got notice from Motorworld (Importer), Pipe registration number transfered to my name, and have to go for an inspection ($50) to get the 'chop'. Pipe has 2 additional tags along with the brand tag. One is the shop registration no and another is the Japanese inspection tag....

 

Carbon-fibre catalyst cost - $550 ++

Titanium Catalyst cost - $600+++++

 

Take your pick.

 

But be warned, for Super 4 Vtec, Sounds nice with faster and smoother pickup and increase in the mid-range to top. But do not expect a miracle. Ours is only a 400cc. One tremendous increase in HP, get a Class 2.

the power should cum around 4 k rite

[FunkyChicken]

wta fazli said the restictor, u cut ur pipe than u'll be able to see. the diameter actually looks big but when u cut it, u'll see a small hole., almost half of the original hole. the other is below the engine, where the exhaust split 4-2-1

[Fazli]

Originally posted by Rikk@Jun 28 2004, 09:13 PM

i din see anything except theres a part which narrows considerably, like pipe within pipe, wonder is that what you meant??

Yupz... You see some kind of mesh on the inner walls right.

[Fazli]

Originally posted by FunkyChicken@Jun 30 2004, 01:23 PM

wta fazli said the restictor, u cut ur pipe than u'll be able to see. the diameter actually looks big but when u cut it, u'll see a small hole., almost half of the original hole. the other is below the engine, where the exhaust split 4-2-1

Didn't know there's another restricted area of the exhaust... How you got to know bout it?

[kho686]

Originally posted by Fazli@Jun 28 2004, 09:04 PM

There is a restrictor... You remove your end can and you can see liao.

so there is a restrictor?? how to remove it?? which motordiam is recommended to remove it

[FunkyChicken]

Originally posted by Fazli@Jun 30 2004, 04:19 PM

Didn't know there's another restricted area of the exhaust... How you got to know bout it?

hehehehe....was informed by the guy whom i bought my yoshi from. he recommended me a shop at jb...s$100-150. u'll hear the differece when u hit it with a spanner and hear the hollow sound compared to restricted ones.the other one that u refer, kenny77 eva told me and went dwn the shop to take a look.

[Rikk]

if remove everything can hit over 200km/h?