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 kelebihan dan keburukan port & polish Head

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nomo
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nomo

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kelebihan dan keburukan port & polish Head Empty
PostSubject: kelebihan dan keburukan port & polish Head   kelebihan dan keburukan port & polish Head Icon_minitime4/6/2008, 2:23 pm

saya nak tau apa kelebihan dan keburukan kalau kita port and polish head enjin
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tony84
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tony84

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kelebihan dan keburukan port & polish Head Empty
PostSubject: Re: kelebihan dan keburukan port & polish Head   kelebihan dan keburukan port & polish Head Icon_minitime4/6/2008, 2:29 pm

jln rata laju lah.....tp naik bukit.,hangkang...kurang power...
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blugu
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blugu

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kelebihan dan keburukan port & polish Head Empty
PostSubject: Re: kelebihan dan keburukan port & polish Head   kelebihan dan keburukan port & polish Head Icon_minitime4/6/2008, 2:36 pm

Cylinder head porting refers to the process of modifying the intake and exhaust ports of an internal combustion engine to improve the quality and quantity of the gas flow.
Cylinder heads, as manufactured, are usually suboptimal due to design and manufacturing constraints. Porting the heads provides the finely detailed attention required to bring the engine to the highest level of efficiency. More than any other single factor, the porting process is responsible for
the high power output of modern engines.

This process can be applied to a standard racing engine to optimize its power output as well as to a production engine to turn it into a racing engine, to enhance its power output for daily use or to alter
its power output characteristics to suit a particular application. Daily human experience with air gives the impression that air is light and nearly non-existent as we move slowly through it. However, an
engine running at high speed experiences a totally different substance.
In that context, air can be thought of as thick, sticky, elastic, gooey
and heavy (see viscosity). Pumping it is a major problem for engines running at speed so head porting helps to alleviate this.

http://upload.wikimedia.org/wikipedia/en/8/81/Port_modification2.GIF

Source : wikipedia.org
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shalina7981
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shalina7981

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kelebihan dan keburukan port & polish Head Empty
PostSubject: Re: kelebihan dan keburukan port & polish Head   kelebihan dan keburukan port & polish Head Icon_minitime4/6/2008, 2:36 pm

betul tu tony jalan rata dialah punya tu jalan naik bukit mampuslah..lagi-2 bukit kimanis keningau...
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blugu
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blugu

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kelebihan dan keburukan port & polish Head Empty
PostSubject: Re: kelebihan dan keburukan port & polish Head   kelebihan dan keburukan port & polish Head Icon_minitime4/6/2008, 2:42 pm

Biasanya porting ini utk melancarkan angin dari karburator/airbox masuk kedalam enjin, tp jikalau salah porting, power lost & Fuel Comsumption mendadak naik
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blugu
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blugu

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kelebihan dan keburukan port & polish Head Empty
PostSubject: Re: kelebihan dan keburukan port & polish Head   kelebihan dan keburukan port & polish Head Icon_minitime4/6/2008, 2:47 pm

shalina7981 wrote:
betul tu tony jalan rata dialah punya tu jalan naik bukit mampuslah..lagi-2 bukit kimanis keningau...

Ada pengalaman P&P ka bro, share2 la ilmu tuh? dont know
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codeng
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kelebihan dan keburukan port & polish Head Empty
PostSubject: Re: kelebihan dan keburukan port & polish Head   kelebihan dan keburukan port & polish Head Icon_minitime4/6/2008, 2:48 pm

shalina7981 wrote:
betul tu tony jalan rata dialah punya tu jalan naik bukit mampuslah..lagi-2 bukit kimanis keningau...
bule bagi penerangan ka bro kenapa jalan lurus diala punya, klu jalan naik bukit diala mampus?? Suspect
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blugu
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blugu

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kelebihan dan keburukan port & polish Head Empty
PostSubject: Re: kelebihan dan keburukan port & polish Head   kelebihan dan keburukan port & polish Head Icon_minitime4/6/2008, 2:51 pm

Check this website out;

http://www.bcheads.com/twincamgraph.htm
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codeng
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kelebihan dan keburukan port & polish Head Empty
PostSubject: Re: kelebihan dan keburukan port & polish Head   kelebihan dan keburukan port & polish Head Icon_minitime4/6/2008, 2:55 pm

blugu wrote:
Check this website out;

[url=http://www.bcheads.com/twincamgraph.htm
http://www.bcheads.com/twincamgraph.htm[/quote[/url]]
TengQ bro blugu.... Very Happy
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blugu
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blugu

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kelebihan dan keburukan port & polish Head Empty
PostSubject: Re: kelebihan dan keburukan port & polish Head   kelebihan dan keburukan port & polish Head Icon_minitime4/6/2008, 2:58 pm

Port and Polish


Porting and polishing your intake manifold or cylinder head(s) is an
important upgrade that can have a dramatic impact on your engine.
Alone, a ported and polished intake manifold will add about 7hp at the
wheels. However, the important aspect of this upgrade is that it
reduces the air resistance in your engine. Without a port and polish,
the more air your engine tries to pull in, the more resistance is met,
and the harder it is to get the neccesary air. When your air passages
are bigger and smoother however, the air flows with less resistance,
and more air is pulled in. Think of it like trying to drive fast. In a
semi-truck, it takes a lot of energy to drive at high-speed. What you
want is a sports car, that cuts through the air and goes faster for its
horsepower.
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shalina7981
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shalina7981

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kelebihan dan keburukan port & polish Head Empty
PostSubject: Re: kelebihan dan keburukan port & polish Head   kelebihan dan keburukan port & polish Head Icon_minitime4/6/2008, 2:58 pm

nilah pengalaman ni di hadapi oleh kawan aku jugak...polish nikan head makin nipis...jadi jalan berbukit tinggi..cepat panas so lost powerlah...jalan rata...ok..saya pun tak tau mengapa.. nantilah aku tanya kawan aku tu,....
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shalina7981
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shalina7981

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kelebihan dan keburukan port & polish Head Empty
PostSubject: Re: kelebihan dan keburukan port & polish Head   kelebihan dan keburukan port & polish Head Icon_minitime4/6/2008, 3:01 pm

kwn aku ni banyak bikin keta..sekarang dia tenga pengajar(mekanik) kat ikm kuching..sarawak... dulu kat kk dia pernah test dgn toyota turbo..1.6 keatas..dia pakai toyota 1.3 standard tapi power dia bikin...tinggal ooohh...tak tau..dia bikin mcm mana..
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blugu
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blugu

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kelebihan dan keburukan port & polish Head Empty
PostSubject: Re: kelebihan dan keburukan port & polish Head   kelebihan dan keburukan port & polish Head Icon_minitime4/6/2008, 3:07 pm

shalina7981 wrote:
nilah pengalaman ni di hadapi oleh kawan aku jugak...polish nikan head makin nipis...jadi jalan berbukit tinggi..cepat panas so lost powerlah...jalan rata...ok..saya pun tak tau mengapa.. nantilah aku tanya kawan aku tu,....

Ini kes terlebih porting suda nie, sepatutnya port dlm 2mm beza saja, kalau lebih... mcm fakta yg telah dikatakan sebelum ini, power loss & kuat makan petrol
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tony84
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tony84

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kelebihan dan keburukan port & polish Head Empty
PostSubject: Re: kelebihan dan keburukan port & polish Head   kelebihan dan keburukan port & polish Head Icon_minitime4/6/2008, 3:16 pm

klu setakat 2mm mungkin xpala...masi bule lagi...tp tetap ada beza tu...
saya sendiri pernah rasa bw keta suda kena porting....1.3 stanted bule swap vigo jln lurus...memang power lah..tp time saya turun kk jln kimanis..,
haiz...berat betul...
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codeng
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kelebihan dan keburukan port & polish Head Empty
PostSubject: Re: kelebihan dan keburukan port & polish Head   kelebihan dan keburukan port & polish Head Icon_minitime4/6/2008, 4:13 pm

aiya, saya baru mau port n polish head....
xjdila klu gni...
TengQ bro2 skalian.... Very Happy
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shalina7981
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shalina7981

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kelebihan dan keburukan port & polish Head Empty
PostSubject: Re: kelebihan dan keburukan port & polish Head   kelebihan dan keburukan port & polish Head Icon_minitime4/6/2008, 4:17 pm

Port & polish ni klu mau test ble lah.. tp jalan jauh.. berbukit lagi siap kita susah..
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RBN76
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kelebihan dan keburukan port & polish Head Empty
PostSubject: Re: kelebihan dan keburukan port & polish Head   kelebihan dan keburukan port & polish Head Icon_minitime4/6/2008, 4:35 pm

ter over P&P buli jadi disaster tu...mekanik inda pandai kan Blugu...kalu mau buat,konfident yg mekanik tu cunnnnn...
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tony84
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tony84

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kelebihan dan keburukan port & polish Head Empty
PostSubject: Re: kelebihan dan keburukan port & polish Head   kelebihan dan keburukan port & polish Head Icon_minitime4/6/2008, 4:38 pm

ya...cari mekanik yg cun...supaya x berlaku kemalangan.... Very Happy
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shalina7981
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shalina7981

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kelebihan dan keburukan port & polish Head Empty
PostSubject: Re: kelebihan dan keburukan port & polish Head   kelebihan dan keburukan port & polish Head Icon_minitime4/6/2008, 4:41 pm

sokong mesti cari mekanik cun /campin
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RBN76
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kelebihan dan keburukan port & polish Head Empty
PostSubject: Re: kelebihan dan keburukan port & polish Head   kelebihan dan keburukan port & polish Head Icon_minitime4/6/2008, 4:41 pm

ko tau lah mekanik..ooops i did it again..kring kring skru jatuh..peduli lah,bukan kerita saya..yg penting $$$$$$$..sssstttttt diam diam..nanti owner tau hahahahaha geek
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tony84
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tony84

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kelebihan dan keburukan port & polish Head Empty
PostSubject: Re: kelebihan dan keburukan port & polish Head   kelebihan dan keburukan port & polish Head Icon_minitime4/6/2008, 4:46 pm

haha.....ngam tu... cheers
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blugu
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blugu

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kelebihan dan keburukan port & polish Head Empty
PostSubject: Re: kelebihan dan keburukan port & polish Head   kelebihan dan keburukan port & polish Head Icon_minitime4/6/2008, 5:33 pm

RBN76 wrote:
ko tau lah mekanik..ooops i did it again..kring kring skru jatuh..peduli lah,bukan kerita saya..yg penting $$$$$$$..sssstttttt diam diam..nanti owner tau hahahahaha geek

Mmg betul tuh, kadang² kita juga yg mau porting yg besar², trip lagi besar lubang lagi banyak angin yg masuk, tapi lupa pulak... lagi banyak angin, minyak tidak cukup, mestila semput, kalau main kreta NA, enjin masi selamat, tapi kalau main turbo suda, tambah lagi dgn boost 20psi, komfom Kebaabooommm!!!
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LoLLiPoP
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kelebihan dan keburukan port & polish Head Empty
PostSubject: Re: kelebihan dan keburukan port & polish Head   kelebihan dan keburukan port & polish Head Icon_minitime4/6/2008, 7:05 pm

port and polish mmg bagus klu mau enjin kuat... but 1st mmg klu angin dah banyk, minyak pun kena big flow... penjimatan petrol mmg nda wujud lagi...

klu port n polish jak, ndada guna klu piston masi std.. at least low compression, valve tukar besar.. aku pernah try pakai valve toyota... setakat 38psi no problem.. but at least engine management kena ada mcm 5 button.

tepuk dada tanya selera.. buat apa port and polish klu stakat mau pakai keta tu pi kerja atau pi pasar atau bw anak bini pi tg aru makan jagung... klau mcam gila kuasa lenlah... terpulang dgn individu itulah klu mau kuat, jgn mengomel klu pulang balik kk-putatan minyak rm10.. lol!
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blugu
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blugu

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kelebihan dan keburukan port & polish Head Empty
PostSubject: Re: kelebihan dan keburukan port & polish Head   kelebihan dan keburukan port & polish Head Icon_minitime5/6/2008, 2:23 pm

Antara contoh porting,
kelebihan dan keburukan port & polish Head PPHead
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LoLLiPoP
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kelebihan dan keburukan port & polish Head Empty
PostSubject: Re: kelebihan dan keburukan port & polish Head   kelebihan dan keburukan port & polish Head Icon_minitime5/6/2008, 4:05 pm

codeng wrote:
aiya, saya baru mau port n polish head....
xjdila klu gni...
TengQ bro2 skalian.... Very Happy

rugi ko pakai turbo besar klu nda port.. kurang2 1mm dah cukup.. pastu polish licin2.. naa best gila.. ko rasa tu sentakkan melakat di kerusi... hehehe...
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PostSubject: Re: kelebihan dan keburukan port & polish Head   kelebihan dan keburukan port & polish Head Icon_minitime

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