Ok so we get this question very often , which one is better ??? And which one is right for you ???
<Armaspeed Cold Air Intake System
<Armaspeed Open Box Intake System
Firstly let’s start off talking about colder air and why is it better for making horsepower . Denser air ( Colder Air ) has more oxygen per volume and as we know more oxygen equals better combustion in the engine (Bigger Bang = More Horsepower)
Right since we have that out of the way let’s talk about Cold Air Induction and the benefits of using a Cold Air Induction System
1. Design – Basically cold air induction systems are designed with a sealed box enclosing the air filter and by drawing air from outside the engine bay . By doing so this allows the intake system to draw in colder air . As we have previously stated in the introduction, colder air = More Horsepower
2. Heat management– by drawing air from outside the vehicle it reduces sucking in hot air from the engine bay . This is definitely a big advantage when a vehicle is heat soaked. Heat Soaked refers to the heat in the engine bay after a few pulls , the engine temperature generates a lot of heat in the engine bay and we wouldn’t want that hot air being sucked up by the air induction because our objective is to have colder air for more horsepower.
3. Performance Gains – Because we drawing cold air from outside the engine bay we can create a more consistent vehicle that doesn’t lose as much power between runs because we not sucking up the hot air from the engine bay . consistency wins more races
4. On the flip side of the coin , one of the negatives of having a cold air induction system , it reduces the air intakes sounds slightly because the intake system is sealed
So in conclusion the pros of having a Cold Air Induction is
– Colder Air
– More Consistent Power
– Safer for High Performance Applications
And the Cons being
– Slightly More Expensive to Purchase
– Slightly Less Air Intake Sounds
Ok now let’s get into Open Air Box Intake Systems
Design – Open Air Filter sits inside the engine bay and sucks in a lot of hot air from the engine bay . As we said before our objective was to get colder air for more horsepower. By the intake system sucking in hotter air it will reduce engine power
Heat Management– by the air filter being exposed in the engine bay as the engine gets hotter and gives off more heat it will suck in warmer air and reduce horsepower. The engine ECU can read the temperature of the air and it protects itself by reducing the power to accommodate for the warmer air
Performance Gains – in some cases when the engine becomes heat soaked it can actually work worse than a stock air box system . Remember every little bit helps in a race . Don’t always look at peak dyno numbers and that doesn’t simulate road conditions and doesn’t take into account heat soak . Yes both types on intakes might add similar horsepower on a dyno but in real world conditions it could be a whole different story
On a positive side the open air box system will sound abit louder and have slightly better spooling and turbo sounds .
So in conclusion I think there is an intake for everyone’s different need , some people prefer the turbo sounds vs making more horsepower. It all depends on what you are looking for by installing a air intake system , do you need every bit of power you can get or do you just want that loud turbo spooling sounds when you taking your friends for a drive ???
Want to discuss what’s right for your needs , send us a mail on sales@nvperformance.co.za or contact us on 0781276384