Lambda/O2 sensors

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daniboi328
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Sat Mar 28, 2015 12:59 am

I have fitted the s50b30 into my e30 and it now turns over, I'm just waiting for my manifolds to arrive which I have had modified to clear the linkage.
I've managed to acquire a full stainless 325i system which I intend to use for the time being until I can afford to have a full system made.

My question is where should I place the 02 sensors ?

On a standard m3 3.0 there in between the manifold and the cat where as the 3.2 has them on the manifolds them selves.

Where have you guys fitted them ?


Cheers in advance [/code]
jmc330i
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Sat Mar 28, 2015 6:08 am

Mine were here...

Image
James
'91 325i Sport
'93 318i touring 16v
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daniboi328
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Sat Mar 28, 2015 6:31 pm

was that on a 3.0 james ?
jmc330i
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Sat Mar 28, 2015 6:35 pm

Yup, although they were the same for the 3.2 as well.
James
'91 325i Sport
'93 318i touring 16v
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daniboi328
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Sun Mar 29, 2015 9:49 am

Brilliant stuff.

I couldn't see why the sensors were in such differant places from the 3.0 to the 3.2
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badger88
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Sun Aug 23, 2015 9:14 pm

How much did you pay for your manifold to be modified to fit the e30? Looks like someone's done a good job is it something they could knock up again or just a 1 off?
"IF It's not right it's wrong"
jmc330i
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Sun Aug 23, 2015 9:38 pm

badger88 wrote:How much did you pay for your manifold to be modified to fit the e30? Looks like someone's done a good job is it something they could knock up again or just a 1 off?
They were done by BTB as part of a group buy (back in 2006/2007 iirc). They were spot on and still made proper power on the S50, but they weren't cheap!!! 8O
They won't do one-offs, I believe they needed a minimum of 5 orders (possibly 10) before they'll set up to make them - tbh, I don't know if they'll still do them.

I do know the guy who 'commissioned' the Predator manifolds and exhaust system which is the next best thing... drop me a PM if you want to know more.
James
'91 325i Sport
'93 318i touring 16v
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