throttle body......

[yosup]

guys,

need help....gud move ba tong gagawin ko?

nasira kasi ung throttle body ng auto namin(Lancer GSR). and nung papagawa na kami, suggestion nung isang past Mitsu Mechanic e palitan na lang daw namin ung TB namin ng pang-Galant Gti. do you think good move na to? he is offering the TB of Galant for abt 4T pesos....

...tpos inexplain sakin na kelangan daw ipa-rebore ung socket ng intake manifold para magkasya yung TB ng GTi....risky ba tong gagawin ko?

some says that if i wud do that, ill need to change the injectors too? wud it harm my engine if di ako nagpalit agad ng injectors??

i do not race naman e...just want to improve performance.....

hope u guys can reply to my questions....suggestion is very much welcome...

[antoy]

I don't think you need to replace injectors. Increasing throttle body size is one way of increasing intake flow so this should help performance a bit. Mag-cocompensate naman ecu mo for the added flow. Compare the price of replacing it with an original throttle body to know if its worth it. BTW, paano nasira throttle body?

[yosup]

nagdrop ng 600 rpm ung idling nung samin e...then minsan bgla na lang mamamatay ung engine....

may nag-comment sakin that not changing the injectors can result to a blown out engine..tama ba to?? kahit di ako nag-dra-drag race?

diba ang knowledge ko e dapat tlaga e mas marami ang hangin kesa sa fuel sa combustion db?

[empy]

a free-flow throttle body is a tried and tested way of getting 3-5 hp...the question is - is the galant's throttle body optimized for use with all the stock lancer's intake components? if it is, then it's a good idea. otherwise, maybe you should get a TB from an aftermarket company (ralliart maybe?) that is engineered for the lancer.

[jackaroo]

Think your mechanic doesn't know the problem that's why he wants the TB replaced. Try cleaning the old TB completely specially the vents for the vacuum hoses. The drop in idling is usually caused by blocked vacuum lines leading to the TB- this happens to other cars too. (I only clean mine with a carb cleaner) Don't think you need to replace if all the parts are working within the TB.

[arl0011]

maraming components attached to the TB...ano specifically ang sira?

surplus galant gti throttle bodies are only 1.5K + sa mga surplusan sa banawe

pero better to stick to the spec of your TB [i.e.' kung pang-4G15, use the 4G15 TB]...IMHO, malaki masyado yung GTi TB

tingin ko, gusto lang kumita nang konti nung mekaniko mo

soory that the clubmitsu boards are still closed, pero if you could explain here what specifically is broken, then maybe i can help :wink:

[DSM619]

aftermarket or bigger injectors ay required for forced induced motors , kung nagpalit ka lang ng TB ay it should not affect the performance of the motor kung stock injectots lang , the bigger the TB the better , for a 1.6 motor , u can go up to 65mm of bore . U can feel the power pero take note that u can notice a drop of fuel mileage .

[yosup]

guys,

thanks for the feedback...im learning a lot

DSM,

ala naman turbo ung auto ko....so i do not need to change injectors? but i think i shud change my fuel regulator...

ano ba exact na fuel regulator na bibilhin ko?? and magkano?

[joreb0]

I would get the GTI TB and find a reliable place to have your intake manifold re-bored for less than what you are being quoted for right now. No need for new injectors, the ECU will compensate for the additional airflow by enriching the mixture.
More air + more gas = more power.

[DSM619]

Originally posted by yosup
guys,

thanks for the feedback...im learning a lot

DSM,

ala naman turbo ung auto ko....so i do not need to change injectors? but i think i shud change my fuel regulator...

ano ba exact na fuel regulator na bibilhin ko?? and magkano?

Check some aftermarket universal regulators . It should work fine pero not necessary ito .

[yosup]

guys,

why do i need to change regulators? ano ba ung difference nung stock fuel regulators na naka-kabit kesa sa aftermarket universal regulators?