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Eesti Audi Klubi foorum
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S - Audid
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20vT - tuuning
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Turbod, boost
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[quote][i]Algselt postitas: Maku[/i] When off throttle the 2nd wastegate would open by being triggered off the Vacuum pressure on the backside of the throttle body. Thus, oxygen rich charge air could enter the exhaust manifold and intermingle with the fuel rich exhaust which would be suddenly rich due to the throttle close. This would burn in the exhaust manifold. Which would run the turbo more which would run more air through the exhaust, etc etc. Pretty much a system that feeds on itself until it reaches some happy rate of Rage which is probably at the upper operating limit of the turbocharger. The minute you crack the Throttle back open the 2nd wastegate would shut and all that charge air which was whizzing through the exhaust system would now be blasting through the engine. So it pretty much ran the manifold like a turbojet. I'm sure the crazyfast computers of the day, couldn't keep up with the system and it ran itself into puddles of molten metal. Bruno used it and said it produced 1.5 bar of boost at idle and had instant power with no lag. It was very hard on the exhaust valves as it produced very high exhaust pressures and temperatures. A system very similar to this can be seen on modern WRC cars. They use a mechanical type of Anti-lag as well as a mis-fire type of anti-lag which is so very common to Standalone ECUs. [img]http://84.50.81.66/albums/album03/EM_with_bp_valve1.jpg[/img] [img]http://84.50.81.66/albums/album03/EM_without_bypass_attached1.jpg[/img] [img]http://84.50.81.66/albums/album03/IMG_0771_edited_1.jpg[/img] [img]http://84.50.81.66/albums/album03/IMG_0772_edited_1.jpg[/img] Allikas: [url=http://www.s2forum.com/forum/showthread.php?t=20085&highlight=Evo+exhaust+manifold+sale]S2 foorum[/url] [/quote]
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Eesti Audi Klubi foorum
»
S - Audid
»
20vT - tuuning
»
Turbod, boost
» Vasta
XMB Audi Club Edition
Täiendanud: indro, klem, j6mm & diversion @ 2002-2020
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