2 pipes coming from exhaust manifold
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2 pipes coming from exhaust manifold
hi guys im sure this has been brought up before but i searched and couldnt find anything.. ive seen pics of 2 small pipes on the stock exhaust manifold on non-u.s. model evos... the u.s. model exhaust manifold doesnt havethese pipes.. anyknow what there used for? EGR?
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i thought it was some sort of air injection system to clean up the exhaust fumes...
so its the anti lag system.. is the anti lag driver controlled? and are we (USDM) missing much? how does it come from the factory like that, wouldnt it cause massive unburned fuel out the taillpipe? not really tree friendly
thanks!
so its the anti lag system.. is the anti lag driver controlled? and are we (USDM) missing much? how does it come from the factory like that, wouldnt it cause massive unburned fuel out the taillpipe? not really tree friendly
thanks!
Originally Posted by Deceit
There's a small little pipe to the right of the manifold on non-usdm models for the anti-lag system.
Last edited by D1_EVO8; Jul 18, 2004 at 10:38 AM.
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It is the Secondary Air Supply System. The Non-US evos have a very, very, EXTREMELY small version of Anti-Lag. Some people say it is only active when in 5th gear at full speed for over 3 seconds, and letting the throttle out.
But others simply say the stock ECU does not really control this system, and it's only used in conjunction with aftermarket ECUs that support Anti-Lag.
Regards.
But others simply say the stock ECU does not really control this system, and it's only used in conjunction with aftermarket ECUs that support Anti-Lag.
Regards.
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#10
well check out this picture of a stock US manifold, it looks like it does have ALS
http://cgi.ebay.com/ebaymotors/ws/eB...ayphotohosting
http://cgi.ebay.com/ebaymotors/ws/eB...ayphotohosting
#15
it is a air injection system thta will clean up the exhaust gas and provied SOME anti lag capabilities but not the same as a bang-bang system would. by allowing air into the manifold when off the throttle, the theroy says you should keep the turbo spinning, but in practice i dout there would be any diffrence.
i have seen an aftermarket system fitted to a Ford RS200 that was every effective, but i think that system dumped all the boost into the exhaust manifold (or at least much more then this system does) and when combined with "bang-bang" anti-lag system kill all lag! wouldn't do the turbo much good but it was effective.
thanks Chris.
i have seen an aftermarket system fitted to a Ford RS200 that was every effective, but i think that system dumped all the boost into the exhaust manifold (or at least much more then this system does) and when combined with "bang-bang" anti-lag system kill all lag! wouldn't do the turbo much good but it was effective.
thanks Chris.