A cold air intake is an aftermarket assembly of parts used to bring relatively cool air into a car's internal-combustion engine.
Aftermarket cold air intake systems are marketed with claims of increased engine efficiency and performance. The putative principle behind a cold air intake is that cooler air has a higher density, thus containing more oxygen per volume unit than warmer air.
Ok... enough...
For my case, the design of the hose is by Proton itself. It's an ancient design by those Japanese designers for our sagas in 1990's. However, due to cutting cost issue (I think) the CAI hose is removed for good for my iswara version.
Originally the air intake box is until the radiator there only, which means more hot air from the engine bay will be drawn to the intake manifold to combust. Hot air generally has less oxygen, while cold air has more oxygen... The more oxygen that the carburator can breath, the better the engine response is... Just like placing one human in a room with less oxygen and another human in a room with more oxygen...
Sometimes, people may felt that their car sometimes have poor response in the afternoon and better performance at night. This is a proof of air intakes does matter in terms of engine performance...
Therefore I installed the CAI which draws air from fenders like 1990's saga. The hose cost me RM60... Expensive loh! But it's rare already... Even proton parts centre in glenmarie ran out of this hose since mid 2007... The hose fits perfectly on a square-shaped hole on the side of the engine bay. (The chassis is the same as saga aerobacks in 1990's)
Originally the hose stops at the metal clip i'm having there...
The air intake pipe is from the round dish towards the front metal and radiator...
This hose for RM60 and another RM4 for the clip... Waliao-eh...
Notice that the air con hose is blocking the CAI hose... I just added 2 pieces of insulflex so that the 2 hoses don't rub against each other... Later CAI hose bocor, then air con hose sama bocor lagi expensive...
Unker wiki again:
Risks
Aftermarket cold air intakes can pose a risk of damage to the vehicle.
- Hydrolock - The intake opening is closer to the street than an original-equipment air intake, and more likely to introduce water into the engine when fording streams or flooded roads.
- Noise - Stock air filtration systems usually include resonator-based muffling tubes. Removing them reduces pumping losses but increases noise.
- Can void the vehicle warranty.
Why I opted for such an expensive RM60 old stock plastic hose?
- Old design by proton... Japanese engineer's original design...
- Old design by proton... Japanese engineer's original design...
- The hose seemed to be removed for this version of iswara cause its selling price is RM 24k/ RM27k... Maybe removing the hose is part of the cut cost programme?
- No risk of having hydrolock as explained above... It's inside fender area and is more protected from water unlike those CAI that is directly in front of bumper. The position is quite high, same level as engine cover! So if go through water most probably your engine will gone first before you choke your engine with water from air intake...
- Dust resistant... No need to change my air filter every service although the filter is below RM10... Fender area has generally less dust compared to normal front CAI facing the roads... You know la, our road ada stone, sand, simen, dust, grass, whatever... Super dirty... Don't even mention plastic bags or socks cover your whole CAI hole... That time you'll really wonder why your car choke like nobody's business...
- Not to worry about warranty, the proton service centre even tighten my CAI correctly for me... I think he must be very curious when he saw this CAI on my ride...
- No fuss installation... Fits perfectly to my engine bay squarish hole!- No risk of having hydrolock as explained above... It's inside fender area and is more protected from water unlike those CAI that is directly in front of bumper. The position is quite high, same level as engine cover! So if go through water most probably your engine will gone first before you choke your engine with water from air intake...
- Dust resistant... No need to change my air filter every service although the filter is below RM10... Fender area has generally less dust compared to normal front CAI facing the roads... You know la, our road ada stone, sand, simen, dust, grass, whatever... Super dirty... Don't even mention plastic bags or socks cover your whole CAI hole... That time you'll really wonder why your car choke like nobody's business...
- Not to worry about warranty, the proton service centre even tighten my CAI correctly for me... I think he must be very curious when he saw this CAI on my ride...
Performance improvement?
- I didn't really drive in the afternoon in the first place... So by adding this there's no significant improvement that I felt yet...
- Maybe need to rumble only know eh?
Okla, enough of expensive RM60 mod... Next post will be cheap mod... VERY cheap mod.... Less than RM10, RM5?
Nah... Ori parts some more less than RM5...
1 comment:
Superchargers and turbochargers that are used to increase horsepower will have an intercooler unit that chills the air before it goes into the cylinder.
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