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4-2-1 collector ???????????

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Old Jul 14, 2002 | 08:32 PM
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Default 4-2-1 collector ???????????

I'm trying to configure an exhaust that's a little different the the normal and I know most people have seen this- <img src="http://www.burnsstainless.com/Xdesign/4-2-1_wcutaway.jpg" alt=" - " /> But my question is that to run this configuration the O2 sensor is going to be further away from the engine than normal. Is that going to cause any problems with the tune? Or since the velocity should be greater the added distance won't matter?

LAter <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
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Old Jul 14, 2002 | 08:35 PM
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Default Re: 4-2-1 collector ???????????

You would be better off putting the O2 in the header primary. Putting it to far away would cause code HO2S, insufficient O2 sensor heater circuit. Also you will have terrible ground clearance with those mongo collectors.
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Old Jul 14, 2002 | 11:27 PM
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Default Re: 4-2-1 collector ???????????

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">You would be better off putting the O2 in the header primary. Putting it to far away would cause code HO2S, insufficient O2 sensor heater circuit</font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I'm not sure this is good because number one, the LS1 uses heated O2 sensors so it doesn't matter where they go, number 2 the O2 sinsor needs to read all cylinders firing, not just one.
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Old Jul 14, 2002 | 11:53 PM
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Default Re: 4-2-1 collector ???????????

That is commonly known as a "tri-y." Lot of cup cars use them now with large radius mandrel bent tubing. They create unreal lowend torque with out sacraficing topend. Good choice, but expensive. Those you see are worth about 6 grand. Pro-Fabrication out of Charlotte charges about 7k a set now <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" />
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Old Jul 14, 2002 | 11:53 PM
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Default Re: 4-2-1 collector ???????????

BTW, O2 placement is not a problem, Put it in the collector, not the primary.

<small>[ July 14, 2002, 11:55 PM: Message edited by: G2 LS1 ]</small>
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