Somewhere I got a "Shorter" K&N that I use on the front carb. It has two
mounting posts -tio and bottom, I just use the top one. Fit is tight, but
it works fine.
On Fri, Feb 22, 2008 at 7:02 AM, Robert Lang <lang@isis.mit.edu> wrote:
> On Fri, 22 Feb 2008, Foster, Stan wrote:
>
> > Hi.. This is a question for anyone that has done the 3xDCOE 40mm
> conversion
> > and has a later model TR6 (it has extra clearance between carbs and
> inner wing
> > wheel arch). I would like to know what length trumpets you used and what
> > thickness filter enclosures and how much clearance you ended up with
> between
> > the filter enclosure and the inner wing.
>
> Use the short trumpets and the shorter K&Ns. If you get the long trumpets,
> the 3 inch K&N's don't fit unless you hack the inner fender. There are
> "socks" and other airfilters out there for the triple webers that will fit
> with the long horns, but not the K&N 3". ITG was one of those options. Not
> cheap, but it should work.
>
> The problem is not the actual clearance but how the K&N attaches. The K&N
> has a center "lug" that the filter goes over and then there's a cover that
> slips over the top and attaches via a center screw. With that lug in the
> way, you can't deform the filter enough to clear the lug. Then there's the
> issue of securing the center screw...
>
> There MAY be an oval K&N cone that might work, but the vast majority of
> street-driven TR6's that I've seen just use the short air horns and the
> short filters (I think the short filters are 1.75" tall).
>
> The power difference between the long and short horns is not a big deal
> unless you pay a lot of $$$ for "constant radius" air horns from the likes
> of TWM and even then the advantages aren't huge unlees you get on a dyno
> and tweak.
>
> > Thanks...
> >
> > Stan
>
>
> regards
> rml
>
> ---------------------------------------------------------------------------
> Bob Lang NER/SCCA | This space for rent
> Solo Chair 2008 TR6 40 F Prepared | Triumph!
> Voice:781-438-2568 FAX: 617-258-9535 | Cell: 339-927-4489
>
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--
Chuck Arnold
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