Unofficial Royal Enfield Community Forum

Royal Enfield Motorcycles => Bullet Iron Barrel => Topic started by: loftusraider on October 11, 2012, 01:10:19 am

Title: HI PERFORMNCE CONICAL AIR FILTER
Post by: loftusraider on October 11, 2012, 01:10:19 am

has anyone fitted one of these, and did you notice a significant difference in performance ?
thanks

Title: Re: HI PERFORMNCE CONICAL AIR FILTER
Post by: RBHoge on October 13, 2012, 08:34:01 am

You will notice some improvement, but you will probably want to add a silencer with a more "free flowing" design. Either way you will absolutely want need to re-jet your carburettor.  8) check these posts for further advice on the subject. Ace's posts give the best guidance on this.
REgards.
Robert

Title: Re: HI PERFORMNCE CONICAL AIR FILTER
Post by: ace.cafe on October 13, 2012, 02:04:31 pm

We are assuming you mean the K&N filter, or similar style.

They can work fine, and as RB Hoge says, it is best used in combination with a free flow exhaust system, and a re-jetted carb.

Sometimes these short pod filters can introduce a little bit of a "hiccup" in the throttle response at small throttle openings, but other times they don't cause that, and work fine.

The main issue with these pod filters is that they don't have any support, and it causes the entire carb and filter to hang unsupported by the rubber manifold hose. This usually results in a failure of that rubber manifold hose in a fairly short period of time. Making a support bracket for the filter will help.

Title: Re: HI PERFORMNCE CONICAL AIR FILTER
Post by: single on October 15, 2012, 02:42:54 am

There are many posts on here about this install.
If you go to the gallery and look up singles' ride,I have a picture or 2 of mineI used a big cone which I shortened at the small end and set in fibreglass resin to make a new end and have a bolt in that to a bracket which is frame mounted.
I used the big size to avoid the hiccup.