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Old 06-08-2009, 07:37 AM
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fostersice
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Default external wastegate

ok guys need help


pros and cons to using and external wastegate

im building a mk2 escort cosworth
im using a 4x4 cosworth engine
i am going to have the sump big winged
and i was going to stick with the standard 4x4 manifold to get the clearance needed to if the cosworth in the escort

ive been offered an manifold with external wastegate

as i don't know anything about them i need your help

im guessing its going to need i different turbo?

im only looking to get around the 375bhp from the engine


i just dont want to spend money on the wrong things

many thanks for your help guys
Old 06-08-2009, 07:51 AM
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LHD220Turbo
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thought you asked this before mate?

https://passionford.com/forum/genera...wastegate.html
Old 06-08-2009, 08:02 AM
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LHD220Turbo
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to answer some of your questions, as your running 375hp ish i guess you'll be on a t34 turbo?

An external waste gate basically lets airflow bypass the turbo - if using an external wastegate you will need a boost controller, the boost controller basically opens the gate

with a t34 (assuming that's what your using) the internal waste gate is more than capable of doing the job, there is no need to over complicate things
Old 06-08-2009, 08:23 AM
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except the external gates control boost MILES better than any swing flap
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