I have a set of round K&Ns and billet air horns that I bought from APT
<http://aptfast.com/> in Riverside, CA, for the NOS L-4 SU setup that I have
for whichever 510 it ends up on. They're about 6 inches in diameter and at
least 4 inches tall so there should be plenty of room for fairly tall
velocity stacks. I think they're available in filter element heights down to
2 inches, maybe shorter. The billet stacks I got are basically just rolled
lips designed to channel and smooth the air flow into the carb throat.
I'm pretty sure that TWM has some nice bolt-on stacks, too, in different
heights and base diameters. I would suggest that you let any clearance
issues dictate the height of the filter elements first and then you can
decide what height stack to use while keeping at least as much clearance
above the stack throat as the throat is wide. This allows for a much
smoother air flow into the carb. You can also get filters with the mounting
holes offset to help when things are cramped or get them with blank bases so
you can roll your own.
The APT folks were really nice to work with. They also do Webers as well as
Sus.
HTH,
Ron
> Leigh Brooks
> If you just replace the filter element with a K&N the air flow should
> be the same. Someone posted a trick to use a round filter and make it
> fit the stock housing (can't remember where I saw that).
>
> I had a set of very small round K&N housings on my 1500. The seemed to
> work fine, but I have no idea what they originally fit. Midget, B or
> TR, maybe?
>
> I just watched the Z Therapy carb rebuild video, and he mentions that
> SU's flow better with airhorns (and not to use brit airhorns, as the
> diameter is not right, creating a venturi before the venturi).
>
> Anyone have a K&N setup with room for airhorns?
>> Perry Smith:
>> I've been watching the threads on air filters for quite a while and I
>> still have the original air filter setup on my car (although not the
>> original air filter, of course). I want to replace the original
>> filter with a K&N, but dont' know what to buy to do it. Mostly I'm
>> curious because I want to get the setup right so that it has the
>> correct air-flow through the SU's. Do you know what I need to buy
>> (p/n's, etc.) to get this setup?
>>
>> Thanks,
>> Perry
>> '68 2000
|