mark chandler
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| posted on 17/5/09 at 06:57 PM |
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Lambda takeoff after the turbo, is this okay?
Hello
I'm now busy shoving a turbo on, got one off Scootz a few weeks ago, very happy with the aerocharger turbo BTW.
So its going on my blade engine, but due to size constraints I will really struggle to get a lambda probe in before the turbo so....
If it goes in after the turbo will it really matter, it will still be within 12" of the exhaust ports, just after a fan.
I can only see it being an issue if it gets cold, but as a wideband with its own heating element it should be okay ???
Whats the opinion.
Cheers Mark
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matt_claydon
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| posted on 17/5/09 at 07:21 PM |
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It'll be fine. I've seen more OEM setups with the O2 sensor post-turbo then pre.
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ashg
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| posted on 17/5/09 at 07:54 PM |
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my old lancia delta evo II turbo had the lamba right on the elbow straight out of the turbo. it should be fine.
Anything With Tits or Wheels Will cost you MONEY!!
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Exocet (Finished & Sold)
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tomgregory2000
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| posted on 17/5/09 at 08:08 PM |
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I fount this site which might help you
Click me
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andkilde
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| posted on 17/5/09 at 08:11 PM |
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Probably better in fact -- wideband O2 sensors don't hold up that well to combustion chamber levels of heat -- a foot or so downstream is a much
happier environment for them.
t
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flak monkey
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| posted on 17/5/09 at 08:36 PM |
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Mine is after the collector on my 4 into 1 system and works fine, so after your tubos will be fine 
Sera
http://www.motosera.com
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matnrach
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| posted on 17/5/09 at 08:53 PM |
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You can't put a wideband pre turbo anyway as it is affected by pressure and will not read correctly (unless it is compensated for in the
software)
All (as far as I know) UEGOs controllers are caliibrated at atmospheric pressure only.
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mark chandler
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| posted on 17/5/09 at 09:23 PM |
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Thanks for all the replies, the link also included a warning:
Turbo installations require the sensor to be positioned even further from
the exhaust valve. Initially try 1 metre distance from the turbo outlet. Don’t
be fooled by manufacturers placing narrowband sensors right after the turbo
outlet – wideband sensor will overheat under boost.
So its staying well back now!
Cheers Mark
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