New Induction kit

[NoFace]

Hey there, some of you may have seen my post in the newbie section, my saxo vts is still very standard, I got it with Max Power air filter on it so that was my first thing to change, Last night i won a bid on a pipercross induction kit for 56 pounds in total so that should come some time this week, I was quite happy with that because i was going to get it from potn.com for 90 including p&p.

Righ so i have also been looking at some pipercross hosing to get some cold air feed to it, will this improve it much or just a little and where would the best place on a vts engine bay to locate it, i was think about running it to bottom of the front left corner. Any one with a vts engine bay, where did you place it. would be a great help. aby basic tips on induction kits for newbies :A:

[Sean]

you won't see any gains at all from that filter, in fact you'll lose power as it sucks in hot air. The 'which air filter' discussion has been covered many times mate so best have a search around the engine section, but basically the open filters are for noise, enclosed filters (green, simota, bmc) are for performance gains.

[VTS_16v_Boy]

you won't see any gains at all from that filter, in fact you'll lose power as it sucks in hot air. The 'which air filter' discussion has been covered many times mate so best have a search around the engine section, but basically the open filters are for noise, enclosed filters (green, simota, bmc) are for performance gains.



Yep I do agree to a point that a open filter unless properly supplied with a good cold air supply will suffer from Heat Soak (Sucking in warm air rather than Cold) but As long as you can get a good supply of cold air from low down either from the lower part of the front bumper and just cable tie it in postion or from behind the front bumper a bit more involed as the bumper may need to be removed then you should see a small gain in performance.

Take a look on www.espdesign.co.uk and have alook at their Polished tubing and Silicone hoses, then if your a diy person you can relocate the cone to a cooler part of the engine bay say behind the offside headlight and also use a cold air supply and maybe a heat shield - after all, all an induction kit is is a filter on the end of a bit of pipe :y:

If your looking to upgrade agian sometime in the future then a protected filter (enclosed will offer better gains) but for now see what it performes like then if you feel like tryin to improve on the design then relocate it :y:

[NoFace]

Okay then here is an intresting question, so an enclosed filter is better for performance because it stops hot air from the engine getting through, but would an open filter for example with a heat sheild and lets say three direct cold air feeds forcing cold air to it and not allowing any hot air near it have the same performance affects as an enclosed one, or is there some thing different going on inside these enclosed filters that I dont yet know about. or what about if because an enclosed filter only has one cold air feed and if an open filter had more without the efect of hot air would it not produce a little more gain than the encolsed one. I am only trying to understand, please view this with an open mind.

[Predator_R32]

a heat shield will do some good mate but still wont exactly be enclosed

should of bought the raceland one and then bought the green filter to replace the one you get with it at a later date :y:

[NoFace]

I know a heat shield will only help a little but what if yo have cold air blasting at it aswell.

[Predator_R32]

you can only try mate :y:

just dont put the feeds really low to the ground as you will have a water inside the engine if you go through puddles

[VTS_16v_Boy]

Okay then here is an intresting question, so an enclosed filter is better for performance because it stops hot air from the engine getting through, but would an open filter for example with a heat sheild and lets say three direct cold air feeds forcing cold air to it and not allowing any hot air near it have the same performance affects as an enclosed one, or is there some thing different going on inside these enclosed filters that I dont yet know about. or what about if because an enclosed filter only has one cold air feed and if an open filter had more without the efect of hot air would it not produce a little more gain than the encolsed one. I am only trying to understand, please view this with an open mind.


Basically its hard to tell.

I had a Green enclosed and felt it wasnt very good from standing start as if the scoop was flush with the slam panel it was slighly starved of air from standing start - I then changed over to an open Larger filter with a heat shield and cold air feed, much better around town and lower down but suffered more when at high speeds where the scoop was almost be Force feed cold air.

Ive since gone back to the scoop - I still believe a car with a larger open cone PROBALLY supplied with cold air on short runs could out perform a smaller cone in a scoop but its all about overall long running and I think the scoop maybe better for everyday use than the cone.

The open cone filter is still advantage over standard OE airbox system as the cone will have a larger surface area but really needs a good supply of cold air.
This is where BMC and Viper Style kits come into their own - best of both worlds.

Heres mine with the scoop

http://i74.photobucket.com/albums/i277/turpin2000ad/SaxoVTS16v8.jpg

and mine with the Open filter and Heat Shield - Its slighly unclear but the heat shield went under the filter and almost boxed the cone in

http://i74.photobucket.com/albums/i277/turpin2000ad/SaxoVTS16v20.jpg

[VTS_16v_Boy]

If money was totally no object (I wish) then the best setup would be a RaceCar Cold Air Box - Used on Touring cars and very high powered Ford Cosworths - This is basically an large inclosed box feed with cold air with a large open cone inside, the forward motion of the car would force cold atmosphere into the box and the filter would draw as little or as much as it liked.

I have played with the idea and if you relocate the battery to the boot like Mk1 Escort Mexico's then the space freed up could be used to construct a large airbox to house a cone filter.

Not cheap but if its good enough for a Touring car its good enough for a Saxo :-)

Also its worth mentioning the Green Scoops where developed by Rally teams and not just for hot hatches

[Foggy]

Running TB's we use the forced air input train of thought, by running a scoop on the bonnet to force the air into the airbox and down the trumpets.

http://www.smrallying.co.uk/images/SSC/vent1.jpg

There are holes cut into the bonnet

We are currently thinking of getting a new airbox made with a panel filter on the top which would sit against the bonnet when closed al la WRX intercooler.

[VTS_16v_Boy]

^^^

Car Ching - Just what I was talking about :-)

Top stuff.

[NoFace]

Wow thanx guys big help, those are some great postings and those pics have helped me, think i will have to upgrade to a enclosed kit summer time, but for now i am going to go with my pipercross open filter and move it towards the front of the engine bay and get a heat shield and have one or two cold air feeds.

so i have been looking at the BMC filters and the viper and raceland, what makes them all that different from each other, whats the best in your OPINION.

Great Thread this, i think over next couple of weeks I will be working on my engine bay.