Carbs without air filters

[Jay_harrier]

 

 

I'm probably going to look into getting some sort of bespoke carbon fibre box made to go around the trumpets, with a filter element running the length of the top of it. I can hear my wallet crying at the very mention of the term carbon fibre though

 

I think you should be able to squeeze filters in there, might be worth borrowing one first for a trial fit. If you can, find someone who has an airbox & is dyno proven, the volume, shape & size has been known to have some weird inlet harmonic effect that rob power (mainly at higher revs). This has been seen off inner wings with open bellmouths too.

 

I think K&N used to do their own cold air box.

 

To remove the fire risk on mine, I'm putting in a pukka fire extinguisher system, well worth a couple of hundred quid.

[Guest MK1gaz]

Vista i reckon K+N's will fit on yours mate , worth a try before making an airbox etc . A Fiat strada Abarth 130tc has a good airbox on it that fits twin dcoes so maybe one of those may be what your looking for . The main problem with fires from the sponge type filters is all the residue/fuel dripping from the bell mouths of the carbs etc , if you clean the filter regular this will lower the fire risk a great deal . If you've got throttle bodies like the nice 100e has then you won't catch fire no where near as easy due to fact they don't store any petrol inside them so don't drip etc

[Vista]

Vista i reckon K+N's will fit on yours mate , worth a try before making an airbox etc . A Fiat strada Abarth 130tc has a good airbox on it that fits twin dcoes

 

Ok Gaz I've been out with the Box Brownie, take a look at these and if you can suggest or know of anything that's going to go in here without me being raped by somebody for a custom made airbox then I will owe you some beers

 

 

 

 

 

 

 

[james p]

mine are like yours vista only on a cross flow i just run em open

 

but im interesed in any sugestions ppl may have

[Noodles]

Can you not get a shorter manifold, my dad had to get one for his kit due to lack of space?

[rs new boy]

ive got one of those short manifolds about an inch thick there about a ton from rally design havent got mine fitted up yet but ive got short k&n for them so shouldnt be a problem dont how it will affect performance

[James HPE Motorsport]

Vista i reckon K+N's will fit on yours mate , worth a try before making an airbox etc . A Fiat strada Abarth 130tc has a good airbox on it that fits twin dcoes

 

Ok Gaz I've been out with the Box Brownie, take a look at these and if you can suggest or know of anything that's going to go in here without me being raped by somebody for a custom made airbox then I will owe you some beers

 

 

 

 

 

 

 

 

I run mine open and no plans on putting any on!!!

 

Vista, you would get then k&n`s in there no worries if you moved you wiring slightly!!! After all you cant be the only one in the world thats running a WCXM in a Mk1 with sidedraughts!!!!

 

Still sound 100% better with them off tho

[Mr Sam]

apparently the socks can drain upto 20bhp from a tuned pinto

 

i use a filter and take if off for the track

 

however listning to a mate last night (mainly for turbo'd cars this) use filters on turbos for the track think of all that rubber on the track you really dont want that in your valves now do you

[Guest MK1gaz]

Vista i've not got this engine anymore so i'll get some measurements from my mates car on saturday , here's a pic without filters for a space referance

[Guest MK1gaz]

Here's the same set up with the K+N's fitted , looking at the pics it seems your inlet manifold ends inline with the centre of the dizzy cap the same as mine did

[Guest MK1gaz]

Here's an atmo cossie with 48mm jenveys , this is a tricky one to get filters for , i've sent back a few already as i'm not running the motor without them

[Vista]

Vista i've not got this engine anymore so i'll get some measurements from my mates car on saturday , here's a pic without filters for a space referance

 

It looks like you have a similar gap at the end of your trumpets, BUT (and here's where my problem is), your trumpets are 3 times as long as mine to get that gap. My carb ends are much closer to the bulkhead than yours.

[Guest MK1gaz]

It's weird because the engine must be in the same place as mine was because a wcxm and a standard one are both supporting the engine in exactly the same position i would have thought or else nothing would fit once the engine was bolted in , i'm confused

[Vista]

I reckon the mounts on my world cup X member are different to yours, look at the difference the rocker cover has at the back in relation to the heater bubble drain hole in these two photos. Mine sits a good two inches further right than yours does. On the plus side that enabled me to fit a 2 1/4" 3 piece manifold without junking the servo