Air filter - again...

Technical advice Q&A
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ralphr1780
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#1 Air filter - again...

Post by ralphr1780 » Sun Feb 03, 2019 9:23 pm

Could not resist and acquired this which was on a US import and the owner returning to original set up:

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It is clearly a homebrew made of stainless steel, well done with nice welding all around.
Did read the very detailed posts conc the original plenum and filter canister performance, but nevertheless very tempted to fit and test.
So my lack of experience brings forward my question as to which filtering element to fit inside? Foam cut to dimension and oiled and stored inside, an external sock, where to procure? Or a paper element?
Dimensions look to be: 44cm x 13cm x 7cm.
Thanks already for the response.
Ralph
'69 OTS + '62 OTS - Belgium

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JJC
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#2 Re: Air filter - again...

Post by JJC » Sun Feb 03, 2019 9:43 pm

Just beautiful !! Great find !! I would go the way of the wrap around foam....several companies will make you one, if you give them the dimensions..They might have something in stock. Might even ask previous owner what he did. Easy to clean. You will notice a slight bump in performance, and the sound from the carbs with a less restrictive filter system will be glorious !! Bravo !

JC

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#3 Re: Air filter - again...

Post by ralphr1780 » Mon Feb 04, 2019 12:25 pm

Thanks JC, the previous owner bought the car as a US import from a dealer, he has no info or contact with previous owner. The filter box was empty when he got the car, he could not give me any hint.
Initially I thought I could use an S3 filter element, but these look to be a bit smaller with only about 33cm long. Maybe I should take 2 then cut and reassemble to fit.
Did you notice the fuel filter bowl location? Also very interesting.
Ralph
'69 OTS + '62 OTS - Belgium

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Heuer
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#4 Re: Air filter - again...

Post by Heuer » Mon Feb 04, 2019 12:42 pm

Try ITG who can supply a wide range of filters or even produce a custom one for you - http://itgairfilters.com/

No idea why anyone would have fitted the fuel filter there as it would be difficult to examine and even harder to remove/change!
David Jones
S1 OTS OSB; S1 FHC ODB
1997 Porsche 911 Guards Red

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#5 Re: Air filter - again...

Post by JJC » Mon Feb 04, 2019 3:23 pm

Mr.Jones is correct....ITG can set you up. As for the fuel filter, yes...very strange place. I would remove, and if it were me, I would mount some place visible, or at least in the trunk, as I did, where it can be examined without to much fuss.. Fabricate a small piece of any metal, and simply cover the whole once you remove the bowl. Easy enough.

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#6 Re: Air filter - again...

Post by JJC » Mon Feb 04, 2019 3:25 pm

I believe mounting the bowl in a position away from that kind of heat would be prudent also !
JC

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Jeremy66
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#7 Re: Air filter - again...

Post by Jeremy66 » Mon Feb 04, 2019 4:11 pm

Looks like an XK150 ‘S’ air box, particularly given the fuel bowl mount position in which case there are several off the shelf standard and performance elements available.

Jeremy

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#8 Re: Air filter - again...

Post by ralphr1780 » Mon Feb 04, 2019 4:33 pm

Jeremy, seems you nailed it up :yellow: :
https://coventryautocomponents.co.uk/st ... uct_id=295
I will first check fitment on my car and clearance, and if ok for testing and ordering the appropriate filter.
Ralph
'69 OTS + '62 OTS - Belgium

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#9 Re: Air filter - again...

Post by bitsobrits » Tue Feb 05, 2019 12:28 am

If it is in fact an XK150 airbox it will fit the engine, but not the car (E-type). The element area will foul the engine frame. Been there, done that, bought (and returned) the airbox.
Steve
'65 S1 4.2 FHC (early)

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#10 Re: Air filter - again...

Post by ralphr1780 » Tue Feb 05, 2019 8:01 am

Steve, the one I have is a home brew which came out of an E.
I will make a trial fit on my car coming week-end and report, it should look like this (Brian's car on JL):

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Ralph
'69 OTS + '62 OTS - Belgium

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#11 Re: Air filter - again...

Post by bitsobrits » Sun Feb 10, 2019 8:30 pm

I see the one pictured has no apparent length to the "trumpet" tubes. The one you have has tubes similar in length to the standard E. I would think that when you try to fit yours, it will foul the mudguard, if not the engine frame also. Note how the original E set up has the fiberglass airbox/adaptor "swept back" to clear the mudguard.
Steve
'65 S1 4.2 FHC (early)

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#12 Re: Air filter - again...

Post by ralphr1780 » Wed Feb 13, 2019 9:49 pm

Steve you are absolutely right: it fouls strongly the mudguard :cussing:.
I have contacted the fellow who sold it to me and he admitted that the mudguard had been "adapted" (read cut) to accomodate.
Any XK150 fellows around? :helpsos:
Ralph
'69 OTS + '62 OTS - Belgium

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