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 902 Posts Member #: 111 Post Whore Loughborough |
23rd Jan, 2009 at 08:58:42pm
I'm going to weld the boss in to me exhuast tomorrow. How far down the pipe should I put it? Has any one found a good way to fit them in with out fouling on anything?
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4314 Posts Member #: 700 Formerly British Open Classic The West Country |
23rd Jan, 2009 at 09:12:24pm
Is it wide band or narrow band?
Isambard Kingdom Brunel said:
Nothing is impossible if you are an Engineer |
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493 Posts Member #: 3894 Senior Member sallys gap. garden of Ireland |
23rd Jan, 2009 at 09:58:00pm
On 23rd Jan, 2009 Rob H said:
Is it wide band or narrow band? I believe that wide band should be near the bottom of the down pipe where it is cooler, whilst narrow band should be closer to the turbo. Hopefully someone will correct me if I got that wrong. I would agree with Rob H on this one. If narrow band, assuming T3, 4 inches or so from the elbow joint, pointing at right angles to the engine, toward the drivers side tower. this will allow access to the sensor, and protection for it by the bulkhead. Regards Colin |
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Forum Mod  4828 Posts Member #: 154 Post Whore Midlands |
23rd Jan, 2009 at 10:13:31pm
my widebands in the link pipe by the gear selector box to make running the wires inside easier. On 20th Oct, 2015 Tom Fenton said:
Well here is the news, you are not welcome here, FUCK OFF. |
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 3692 Posts Member #: 1833 Formally mini_majic Auckland, New Zealand |
23rd Jan, 2009 at 10:13:37pm
you dont really want any lambda sensor too close to the turbo. if the sensor tip gets red hot its as good as a nose up your arse.
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 159 Posts Member #: 1997 Advanced Member Lichfield |
23rd Jan, 2009 at 10:42:58pm
according to the instructions that came with my STACK wide band sensor "Turbocharged applications should have the sensor installed 100-125 mm after the turbo on the down pipe" |
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 1424 Posts Member #: 2810 Formally spanner181187 Dublin, Ireland |
24th Jan, 2009 at 12:00:25am
I seem to remember Rod S asking the same before and he found it difficult to get a straight answer. 150mm is rining a bell with me as a minimum though. Don't forget that you can buy or make a heat sink if your concerned about heat.
On 12th Nov, 2009 Paul S said:
I think Gary OS has taken over my role as the forum smart arse  On 30th Apr, 2010 Rod S said:
Gary's description is best |
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493 Posts Member #: 3894 Senior Member sallys gap. garden of Ireland |
24th Jan, 2009 at 12:02:44am
are there many sc's in ireland spanner? |
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1424 Posts Member #: 2810 Formally spanner181187 Dublin, Ireland |
24th Jan, 2009 at 12:22:11am
None that I know of. Theres nobody on here and I've never heard of one or seen one at a show. We are farr too automotively underdeveloped. Theres very few cool cars over here On 12th Nov, 2009 Paul S said:
I think Gary OS has taken over my role as the forum smart arse On 30th Apr, 2010 Rod S said:
Gary's description is best |
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 998 Posts Member #: 2178 Post Whore Leyland, Lancs |
24th Jan, 2009 at 07:59:41am
You've got more AE86's than we have though! On 15th Jul, 2009 fastcarl said:
a breif struggle ensued but Will emerged the victor with a pair of undies in his possesion On 21st Sep, 2009 apbellamy said:
No, but you did chuck your guts up over my front gate the Saturday before! You even managed to get a bit in your arm pit... |
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 (2)[/url] by [url=https://www.flickr.com/photos/150672766@N03/]Rod Sugden[/url], on Fli) 5988 Posts Member #: 2024 Formally Retired Rural Suffolk |
24th Jan, 2009 at 11:30:33am
On 24th Jan, 2009 spanner181187 said:
I seem to remember Rod S asking the same before and he found it difficult to get a straight answer. I did, and you are right - a wide (forgive the pun) variation in opinions. In the end I went through all the usual suppliers' instruction sheets (where I could access them on line) and found they all varied with little reference to turbos and I don't remember any of them talking about SC 
So I located the Bosch data sheets (most wideband LSUs are Bosch) and found it came down to TWO temperature limits, one for the body of the sensor (ie, the housing of the cell) and one for the exhaust gas itself (ie, the gas going into the cell). The most common quoted interpretation of these two temperatures was a minimum of 300mm from the nearest exhaust valve on N/A or a minimum of 300mm from a turbo outlet. You can, as Spanner says, use a heatsink (sandwiched between the sensor and the welded boss) to deal with excessive body temperatures, and you can use an extended boss to take the probe tip into a cooler part of the gas stream, ie, put the tip up inside the boss, but this slows reaction time. That is what I read anyway. Note, the Bosch data made it clear that the figures quoted were to achieve a 100,000 mile life and that higher temperatures, ie, closer to the valves or turbo doesn't necissarily stop it working, it just reduces the life. Schrödinger's cat - so which one am I ??? |
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 8604 Posts Member #: 573 Formerly Axel Podland |
24th Jan, 2009 at 11:38:19am
On 23rd Jan, 2009 Alex1340 said:
I'm going to weld the boss in to me exhuast tomorrow. How far down the pipe should I put it? Has any one found a good way to fit them in with out fouling on anything? Cheers As you are running an LCB, you need to put it in the link pipe. Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
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902 Posts Member #: 111 Post Whore Loughborough |
24th Jan, 2009 at 12:23:33pm
Yeah its a LCB so needs to go after the Y section but worried about hitting the floor. |
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8604 Posts Member #: 573 Formerly Axel Podland |
24th Jan, 2009 at 01:32:34pm
It's tricky to get right.
Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
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