Tom1809 Posted September 27, 2011 Share Posted September 27, 2011 sitting tonight trying to work out what i want to do with the exhausts on my v8, my friend suggested what about splitting it and running twin exhausts, 1 for lh bank and another for rh bank of cylinders. This then leaves me wondering would i need 1 or 2 lambda sensors? if just 1 do i just swap it from one side to another to make sure all is ok while tuning it? cheers tom Quote Link to comment Share on other sites More sharing options...
Hybrid_From_Hell Posted September 28, 2011 Share Posted September 28, 2011 Twill run like a dog if lh and rh exhaust aren't joined ! V8s should be y joined or have a balance pipe Nige Quote Link to comment Share on other sites More sharing options...
zim Posted September 28, 2011 Share Posted September 28, 2011 Nige just curious, is it possible to run MS with 2 seperate exhausts ? 2 lambdas ? Saleys LS runs like this iirc (i realise this isn't an ms ecu). G Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted September 28, 2011 Share Posted September 28, 2011 There is 2 lambda inputs in MT, so I assume as much.... But as above I would rather run a balance pipe and get a much nicer running engine Quote Link to comment Share on other sites More sharing options...
Dave W Posted September 28, 2011 Share Posted September 28, 2011 It's debatable if there's any advantage with MS to running 2 Lambda sensors as you don't have any control over the fuelling per cylinder/side. Generally a single lambda sensor is fine and many people fit the sensor (on a V8) before the Y piece on one side as it's better to get the lambda close to the cylinder head but after the 4 cylinders are joined together. I wouldn't run a V8 without a balance pipe or a Y system though, I don't pretend to fully understand the theory behind it but in simple terms it's to do with the exhaust flow from one cylinder helping to ease the flow from the next cylinder by creating a low pressure area on the other side of the Y or balance pipe. Without it you get less performance and a rougher running engine, especially if you have a silencer in the system. Quote Link to comment Share on other sites More sharing options...
Tom1809 Posted September 29, 2011 Author Share Posted September 29, 2011 Ah I see. I will just make up a nice stainless manifold and into a cherry bomb and have to work out where to exit it on the side. Cheers chaps Quote Link to comment Share on other sites More sharing options...
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