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| andrewsfutura |
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What are the differences and benefits for internal and external wastegates? Do more people use external wastegates?
_________________ The boogieman checks under his bed for chuck norris |
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| Jim Beam |
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Age: 35 Posts: 3505 Joined: 1st May 2005 Ride: EB Fairmont Location: Northern Suburbs, Adelaide |
More people use external wastegates and from what i have read external is better. I think external can handle more boost, there were a few other reasons but I cant remember them right now. Something about boost spikes I think.
_________________ Doin it for Scotty. |
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| Slabz |
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Internal is cheap and easy and suits low power applications. external is better because large valve sizes are available which means they suit higher power setups. downsides of external are they take up more space and cost more.
_________________ EBII 4.0L GLi | T5 | 3.27 Spool | POD | KKK K27 Turbo | 600x300x76 FMIC | 40mm Wastegate (dead) | RPD Stg1 Cam | B&M Launch Control | Thermos | 3" Dump | Twin 2.25" Zorst | 197kw@3500rpm, 7psi LEAN!
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| fiftyone |
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can you get internal that make that blowoff noise? cause i think external ones are illegal from the EPA cause any atmospheric gases, burnt or not must pass through the cat
_________________ ** For Sale ** {DESCRIPTION} |
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| EFFalcon |
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{USERNAME} wrote: can you get internal that make that blowoff noise? cause i think external ones are illegal from the EPA cause any atmospheric gases, burnt or not must pass through the cat
thats the blow off valve, not the wastegate. wastegates vent exhaust gasses, externally venting ones are pretty damn loud and generally reffered to as screamer pipes.
_________________ FALCN6 - EF GLi Turbo, 20" Rims, Air Bag Suspension, Straight LPG, 225rwkw |
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| Gaz |
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you just plum back the wastegate back before the cat.
_________________ 2007 Steel BF Ghia MKII V8 - 19" GTP's + Superlows |
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| EFFalcon |
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correct.. or i have seen after the cat on a fully complianced turbo car.
_________________ FALCN6 - EF GLi Turbo, 20" Rims, Air Bag Suspension, Straight LPG, 225rwkw |
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| fiftyone |
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so a blow off lets excess boost vent to keep the turbo spooling and a wastegate vents the zorst around the turbo for when s**t loads of boost isnt needed?
_________________ ** For Sale ** {DESCRIPTION} |
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| fritzz |
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basically yes
_________________ # 1997 EL Falcon GLI - 600+rwkw |
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| jjs34 |
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hey there,anyone know what the max boost an internal wastegate turbo can usually handle in a new condition,thanks
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| Squeca |
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that depends on the turbo. it has a lot to do with the compressor size and the a/r ratios. Also depends on when the turbo is efficient.
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| jjs34 |
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hey mate,thanks for that,appreciate it
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