Under tank filter

[Jim/Maine]

True but it's also less restricted air.

I'd also be interested to see pressure flow data caused by turbulence from legs, screens etc

The under seat snorkels are also easily blocked by jackets/jeans - I have that T-Shirt - well OK my wife does as they were her jeans.

Finger's crossed that Ramair have filters ready for me in a fortnight, when I'm in the UK.

Yes, real temperature and volume numbers would be interesting. One real test obviously is dyno's but not many have true side by side comparisons on this one swap I suspect. No negative comments meant for triple K's -- I just have an aversion to the type of sound generated but I am perhaps the least informed/educated one here on that subject.
And I never thought of any restriction from the plenum other than from the snorkel intakes. I have seen the six VERY SMALL inlets blocked by passenger legs.
KY, you asked the question, and my experience is that it often allows for a lot of information. If you would like the under seat storage I'd do the easy under tank filter.

 

[captain jack]

Can anyone give further info on these ramair filter systems?

 

[barbagris]

Can anyone give further info on these ramair filter systems?

Yes and no. Ramair Filters

This all started as an initiative by Battersea with ITG filters. To make a 1-pce filter that will fit under the bear claw. But after some time ITG decided it was not feasible.

We found RAMAIR filters in the UK and they decided they wanted to make it. The last I heard (last week I spoke with their R+D boss) the final production tooling was still not 100% finished. They hoped to start some first tests Friday past or tomorrow.

We have No Pictures YET. Fair if they've not actually made one YET.

It is a custom built filter for the R3 - not a standard filer that happens to fit. But they are making this a commercial venture (not a one off) and have expressed their intent to make the best filter possible but without going OTT on price.

1. We do know it should flow more air than triple K&N's,
2. We do know it should have built in radius-ed inlets to smooth airflow to the throttle bodies. This is known and proven technology - basically mini-bellmouths.
3. We do know it should have a hole for the Air Temp Sensor in the base so it correctly measures INTAKE air temp.
4. We do know It will eventually come with a wiring extension to move the sensor without bodging the wiring.
5. We do know it will eventually come with a crankcase breather.

Both Colin (Battersea) and I hope to make it to RAMAIR's premises on or about 11th Sept. If they have samples made up I will be walking away with a couple. As soon as I'm back home - it'll be going on my R3.

They have Wayne Tripps details - and I'm hoping they'll also be sending him one to test.

If it works as designed - I'm pretty sure it'll kill the triple K&N option stone dead.

For those worried about fire and foam filters - I understand Colin has convinced RAMAIR to fit special fire trap mesh inside. But I'm not 100% sure.

Long term we understand they want to also offer a replacement Bearclaw that feeds in COLD AIR to the filter.

:::::

Whilst this was all going on Colin and I modified standard Triumph OUTER plenums to allow more air in without all the plumbing under the tank - This retains the Triumph rubber bellmouths - which must offer a substantial benefit as it's what Carpenter uses on their RACE engines. And it's what prompted the test.

My experience is that this is as good and in many respects BETTER than triple K&N's. Certainly quieter, fuel trimming is far less erratic. More power - can't say as I don't have Dyno access.

If you're in the UK and are interested - CALL RAMAIR. The more interest we show the more likely they are to ramp up. We're aware of a delay or two as Aston Martin seem to have more commercial clout than Colin and myself.

 

[dougl]

If the manifold is restrictive, won't the manifold pressure be lower than ambient with the throttle completely open?