HKS Intake (2.2D)

RedPanda

Member
:
CX-5 AWD 2.2D
Ok I just installed the HKS intake for the 2.2 Diesel engine.

First impressions of the intake kit, the pipes are made of cast metal, and seem to be rough on the inside. Also the green panel filter looks like something made for an aquarium filter haha....

Installation was pretty straight forward, other than having some difficulty fitting the top part of the metal pipe due to lack of space. If you look at the battery mount screw area close to the intake pipe, you can see that they are pretty close in distance. Just to be sure that it won't rub, I used a metal file and filed down the edge of the battery mount metal plate.

I went for a quick test drive and can't really feel any difference in performance. There might be slightly louder intake noise coming from the foam panel air filter, but the diesel engine noise is still the loudest thing I can hear.

nPQ4Crx.jpg

OqIJYfP.jpg

MLiHIpP.jpg
 
Last edited:
More performance or not, that LOOKS GREAT!!

I think the airflow is gonna be okay, the small dimples doesn't add much resistance since the cross section of the pipe is significant larger compared to the height of the dimples. (where as compared to porting on the engine cams). And besides, it got rid of the stretch folds on the original intake pipe!

Well done! Especially doing it late in the night during Taiwan's sticky summer!
 
Testing something new, but having issues with MAF at the moment. I think it's not perfectly aligned...

ET1y2rp.jpg
 
Last edited:
Looks good but as with any intake or K&N-like filter it won't add any performance.
 
Sorry for Hijacking the tread RedPanda, I'll move my post to a new thread.

My goal has always been adding move induction noise instead of adding power/performance. So if it adds power then it's a bonus =)
 
Looks good but as with any intake or K&N-like filter it won't add any performance.
Lol in most cases boosted motors are the ones that benefit from more airflow, as long ad the turbo can eat it... seeing as they actually compress the air..

Testing something new, but having issues with MAF at the moment. I think it's not perfectly aligned...

the maf may be to close to the intake, that looks like you'd have to do some more welding then lol
 
Last edited:
Ok I just installed the HKS intake for the 2.2 Diesel engine.

First impressions of the intake kit, the pipes are made of cast metal, and seem to be rough on the inside. Also the green panel filter looks like something made for an aquarium filter haha....

Installation was pretty straight forward, other than having some difficulty fitting the top part of the metal pipe due to lack of space. If you look at the battery mount screw area close to the intake pipe, you can see that they are pretty close in distance. Just to be sure that it won't rub, I used a metal file and filed down the edge of the battery mount metal plate.

I went for a quick test drive and can't really feel any difference in performance. There might be slightly louder intake noise coming from the foam panel air filter, but the diesel engine noise is still the loudest thing I can hear.


jpg

MLiHIpP.jpg

Imo, if you are adding parts that potentially affect the motor/performance, you should have some way of even basic data collection/monitoring.. torque for example free or pro ~$3.00 (android) + a $10 Bluetooth OBD2 adapter. There are other programs too. These will allow you to see the change in 0-60 boost level, *estimated* (regardless of the actual hp number it's pretty consistent on a given set up) hp intake temp, airflow CFM etc.. all those for less than $15, as long as you have some android device.
 
Lol in most cases boosted motors are the ones that benefit from more airflow, as long ad the turbo can eat it... seeing as they actually compress the air..

the maf may be to close to the intake, that looks like you'd have to do some more welding then lol

All the above setup will do is suck hot air into the engine. To gain any benefit (if you are lucky) he'd have to route cold air, ie: CAI: Cold Air Intake, from a low point in the engine bay or directly from the front (like the stock setup already does).
 
All the above setup will do is suck hot air into the engine. To gain any benefit (if you are lucky) he'd have to route cold air, ie: CAI: Cold Air Intake, from a low point in the engine bay or directly from the front (like the stock setup already does).
how is that really significant in a (twin) turbo, intercooled set up??? the air is being compressed anyways this is the turbodiesel we are talking about not the gasoline engine. "cold" air is not really cold it will only be as cool as the ambient temp lol. Once you are moving the air in the bay will be ~ 10f higher on an open set up like that (at least in my similar case and my ambient temps are recently 90-100 deg). a diesel engine generally runs cooler than a gas engine as well..
 
Turbo'd engines gain performance from intake upgrades with less restrictions, whether it is pulling air from the engine bay or a CAI setup. Of course CAI setups are better but that does not mean that you will not get any gain from a setup that pulls from the heated engine bay it just simply will not be ideal at all.

I would also never suggest adding bolt-on upgrades to a turbo'd vehicle unless you have a way of tuning the car. Any upgraded parts can change the performance of an aspirated vehicle dramatically over a non aspirated vehicle, especially under boost.

Intake items can also be trickier to upgrade than one would think, they put the MAF or whatever method they are using to calculate and read incoming air in certain spots for a reason. Changing the location even an inch will negatively affect your cars performance based on how it was tuned, and again, if you do not have a way to retune the car to compensate for this problems can occur.

Usually the biggest bang for the buck is exhaust upgrades before intake.
 
Chris_Top_Her...

My data logging shows the inlet air temps of the Diesel (post intercooler) around 4-6C higher than ambient. And that's pretty damm good in my opinion. Especially for a stock factory system. You'd be hard pressed to get much better aftermarket. And I doubt the expense would be really worth the benefit.

It is hard to say how much higher a pod filter pulling air from the engine bay would be without data logging. Depending on the scan tool, this should not be hard to measure.

KevShu...

The problem with the MAF sensor is "mainly" twofold.

1: Turbulence around the sensor causing it to misread airflow,
2: Incorrect pipe diameter, causing it to misread airflow.

Point 1 is a result of poor design, and should be avoided.

You need to consider the airspeed generated by the same amount of air flowing through different diameters. This is where the error occurs. The same amount of air will flow through a larger diameter slower than a narrow diameter. And based on the MAF readings, and other factors, the ECU will target a certain amount of fuel to match.

I certainly would not want to fiddle with the MAF calibration due to a poorly designed and thought out intake.

I must respectfully disagree here......

As for "bang for the buck" exhausts are far from it in my opinion. If you consider the idea of dollars per kw ( $/kw ) exhausts systems can rate poorly. As do intakes.

The best is generally a tune. Even more so when you buy the software and hardware yourself. On my old CX7, the gain was about 25kw and the cost was under $500. So that's $20/kw.

Too many time we spend money on aftermaket parts with the belief they will add huge performance gains. Sadly, I believe this isn't true in the real world. If we step back for a moment and consider the $/kw idea, you begin to realise how much you are paying for little benefit.
 
Sassimac,

I agree with you fully, except on the exhaust, but that is just the experience I have had modifying Turbo'd vehicles.

As far as the MAF sensor you are 100% correct, my comment on moving it "even an inch" deals with #1, move it closer to a bend, you get more turbulence.
 
Ok I just installed the HKS intake for the 2.2 Diesel engine.

First impressions of the intake kit, the pipes are made of cast metal, and seem to be rough on the inside. Also the green panel filter looks like something made for an aquarium filter haha....

Installation was pretty straight forward, other than having some difficulty fitting the top part of the metal pipe due to lack of space. If you look at the battery mount screw area close to the intake pipe, you can see that they are pretty close in distance. Just to be sure that it won't rub, I used a metal file and filed down the edge of the battery mount metal plate.

I went for a quick test drive and can't really feel any difference in performance. There might be slightly louder intake noise coming from the foam panel air filter, but the diesel engine noise is still the loudest thing I can hear.

nPQ4Crx.jpg

OqIJYfP.jpg

MLiHIpP.jpg
That looks really good.... even using the OEM box!
 
Back