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Wastegate Explained.
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<blockquote data-quote="KRZ8v" data-source="post: 4285569" data-attributes="member: 80206"><p>Hi there, I got a few question bout WG. Recently I've juz replace my turbine housing/center housing/backside if I m not mistaken, from VR4 to Evo3 housing but I m still using the same VR4 compressor/front housing n fin. Bcuz my old VR4 housing got a big and long crack @ the actuator flap which causing a leak. </p><p></p><p>Rite now, the Evo3 actuator gate and flap have been welded together by the old owner which mean I got no choice but to use a ext WG. I m totally noob in WG stuffs, but I do know how it works... @ certain pressure it will open up and release the excess pressure to prevent overboost. But I m kinda confuse wit the size, I dunno wat size to get for my emgine setup. I've read bout the "Turbo size+Boost pressure=WG size" la... But I m not too sure bout it. Since my last setup wuz a disaster, so I m planning to stick wit 1bar of boost only. My question is:</p><p></p><p>1~Wat size suitable for my setup???</p><p>2~Is a Wastegate adjustable or is there such thing?</p><p>3~Any specific place to mount my WG since I m still on oem VR4 cast iron manifold</p><p></p><p>My engine setup is:</p><p>1.6T</p><p>TD05H VR4</p><p>Exhaust (juz incase) 2" piping, straight bullet 2", Straight Flow muffler 2.5" in and 5" out.</p><p>Evrything else is stock as how it is...</p><p></p><p>Thanks</p></blockquote><p></p>
[QUOTE="KRZ8v, post: 4285569, member: 80206"] Hi there, I got a few question bout WG. Recently I've juz replace my turbine housing/center housing/backside if I m not mistaken, from VR4 to Evo3 housing but I m still using the same VR4 compressor/front housing n fin. Bcuz my old VR4 housing got a big and long crack @ the actuator flap which causing a leak. Rite now, the Evo3 actuator gate and flap have been welded together by the old owner which mean I got no choice but to use a ext WG. I m totally noob in WG stuffs, but I do know how it works... @ certain pressure it will open up and release the excess pressure to prevent overboost. But I m kinda confuse wit the size, I dunno wat size to get for my emgine setup. I've read bout the "Turbo size+Boost pressure=WG size" la... But I m not too sure bout it. Since my last setup wuz a disaster, so I m planning to stick wit 1bar of boost only. My question is: 1~Wat size suitable for my setup??? 2~Is a Wastegate adjustable or is there such thing? 3~Any specific place to mount my WG since I m still on oem VR4 cast iron manifold My engine setup is: 1.6T TD05H VR4 Exhaust (juz incase) 2" piping, straight bullet 2", Straight Flow muffler 2.5" in and 5" out. Evrything else is stock as how it is... Thanks [/QUOTE]
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