3.3T Intake comparisons

[Ghee70]

I went with the AEM intakes after going back and forth between them and the BMS. What sold me on the AEMs was that the heat shield seemed to be a better shield from engine bay heat without the cutouts the BMS had. The install took me about 2 hours but that was because I couldn’t fit my hand to easily do certain steps and I had to reverse others. Super satisfied with the look and sound.

Debating between the BMS and AEM, have they held up as expected?

 

[Arive117]

Debating between the BMS and AEM, have they held up as expected?

The AEM intakes have been well worth it. Haven’t had any issues with figment, loosening or breaking parts, and the car has such an awesome sound when you first turn it on as well as open up full throttle. The car feels faster but I’m assuming that’s more in my head and not supported by any measurable data.

Honestly I don’t think you could go wrong with either system but I do like the look of the AEM set and have been incredibly satisfied.

 

[Ghee70]

The AEM intakes have been well worth it. Haven’t had any issues with figment, loosening or breaking parts, and the car has such an awesome sound when you first turn it on as well as open up full throttle. The car feels faster but I’m assuming that’s more in my head and not supported by any measurable data.

Honestly I don’t think you could go wrong with either system but I do like the look of the AEM set and have been incredibly satisfied.

Thanks! Will be ordering today

 

[knealy2]

Installed the Injen CAIs today

 

[dcmr1888]

Did anyone install the aFe MagnumForce intake yet? Seems like it's the only fully sealed aftermarket CAI for the 3.3T.

 

[Slip_Angle]

The Injens look the part. Love the red!

I would be curious to compare the aFe to stock with the initial inlet removed and Velossa Tech snorkels. I'm running the stock intake with AEM dryflow and VT snorkels and the high pressure effect is quite noticeable. Really makes the car responsive and certainly quicker vs. the stock intake setup.

 

[knealy2]

The Injens look the part. Love the red!

I would be curious to compare the aFe to stock with the initial inlet removed and Velossa Tech snorkels. I'm running the stock intake with AEM dryflow and VT snorkels and the high pressure effect is quite noticeable. Really makes the car responsive and certainly quicker vs. the stock intake setup.

Thanks! My next project will be the VT snorkels

 

[Volfy]

Installed the Injen CAIs today

Beautiful piece of kit, but no heat shield?

 

[knealy2]

Beautiful piece of kit, but no heat shield?

Unfortunately the Injens don't come with a shield

Looking at adding these: Air Filter Carbon Fiber Heat shield Cover for INJEN Intake 2018-up Kia Stinger / Genesis G70 3.3T

 

[Genny Guy]

Beautiful piece of kit, but no heat shield?

I wonder if they fit with the stock boxes like the BMS kit?

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[Volfy]

My son and I just installed Injen CAI kit on the G70. Their 2.0T kit does come with a heat shield. Still, I was not happy with all the openings that would allow underhood hot air to be sucked into the intake. What's worse: the polished aluminum intake duct is an excellent conductor of heat - right on top of the hot exhaust manifold. Say what you will about the stock intake system, but with a totally enclosed air plenum and rubber duct, it had a better chance of sucking outside (colder) air and keeping it relatively cool going into the turbo.

Anyhow, we ended up sealing the open top and all the crevices with this radiant barrier and aluminum foil tape. We also wrapped the intake duct. Looks ugly as sin, but effective nevertheless. We are not interested in Car Shows, so I don't much care how the engine compartment looks, as long as things in it do what they need to do. We do run AutoX's, where we quite often keep the engine running inbetween heats to keep oil going through the turbo. Heat soak is a real problem.


I know with my other vehicles with naturally aspirated engines, the intake temp can rise dramatically when just sitting in traffic, especially on a hot day. Just this weekend, I was driving my GMC Savana 3500, which I have an OBD2 display that has intake temp. When the van was moving at hwy speeds, the intake temp was basically same ambient temp (which was 90-100F this past weekend), but as soon as we came to stop, the intake temp starts to rise. At one point, after being stuck in traffic for some 10mins, it got as high as 160F. If we kept getting stuck, I'm sure the intake temp would've kept rising still. When that happens, the normally quite peppy 6.0L V8 became an absolute dog, and with horrible off-line throttle response. As soon as we start moving at higher speeds, the intake temp started to cool down, eventually reaching ambient temp again. Sure enough, the engine felt back to normal power again.

With the G70/Stinger, while I can monitor intake air temp with bluetooth OBD2 adapter and Torque app, that is at the intake manifold just before going into the engine. That is a long way off from the Injen air filter, with an intercooler, turbo and long ducts inbetween. Still, it exhibited a similar trend, just not quite the magnitude of temp rise/fall as NA engine.

 

[MichaelJohnson]

Did anyone install the aFe MagnumForce intake yet? Seems like it's the only fully sealed aftermarket CAI for the 3.3T.

Yes.
Post in thread 'Rim, coil over and lowering springs help!'
Rim, coil over and lowering springs help!

I'll install mine tomorrow.

 

[Slip_Angle]

My son and I just installed Injen CAI kit on the G70. Their 2.0T kit does come with a heat shield. Still, I was not happy with all the openings that would allow underhood hot air to be sucked into the intake. What's worse: the polished aluminum intake duct is an excellent conductor of heat - right on top of the hot exhaust manifold. Say what you will about the stock intake system, but with a totally enclosed air plenum and rubber duct, it had a better chance of sucking outside (colder) air and keeping it relatively cool going into the turbo.

Anyhow, we ended up sealing the open top and all the crevices with this radiant barrier and aluminum foil tape. We also wrapped the intake duct. Looks ugly as sin, but effective nevertheless. We are not interested in Car Shows, so I don't much care how the engine compartment looks, as long as things in it do what they need to do. We do run AutoX's, where we quite often keep the engine running inbetween heats to keep oil going through the turbo. Heat soak is a real problem.

View attachment 46295
I know with my other vehicles with naturally aspirated engines, the intake temp can rise dramatically when just sitting in traffic, especially on a hot day. Just this weekend, I was driving my GMC Savana 3500, which I have an OBD2 display that has intake temp. When the van was moving at hwy speeds, the intake temp was basically same ambient temp (which was 90-100F this past weekend), but as soon as we came to stop, the intake temp starts to rise. At one point, after being stuck in traffic for some 10mins, it got as high as 160F. If we kept getting stuck, I'm sure the intake temp will keep rising still. When that happens, the normally quite peppy 6.0L V8 became an absolute dog, and with horrible off-line throttle response. As soon as we start moving at higher speeds, the intake temp started to cool down, eventually reaching ambient temp again. Sure enough, the engine felt back to normal power again.

With the G70/Stinger, while I can monitor intake air temp with bluetooth OBD2 adapter and Torque app, that is at the intake manifold just before going into the engine. That is a long way off from the Injen air filter, with an intercooler, turbo and long ducts inbetween. Still, it exhibited a similar trend, just not quite the magnitude of temp rise/fall as NA engine.

We should do a little study and compare ambient/intake temps. I run the stock intake with VT snorkels.

 

[MichaelJohnson]

We should do a little study and compare ambient/intake temps. I run the stock intake with VT snorkels.

What type of parameters are you proposing for the test? I can always delay my install and get some numbers. I'll check out my IATs on the way home from work. Right now I've got the stock intake. I removed the factory snorkel behind the bumper cover. Plenty of pictures of that part can be found in this thread for those who are wondering what part I'm talking about.

I actually started installing the AFE kit but they didn't send 2 hose clamps. The driver's side went in without any issues. The passengers side was a pain and I had to do some trimming with my Dremel. I'll get some pictures of it tomorrow.

 

[MichaelJohnson]

Forgot to mention I'm running the BMS Intercooler as well.

 

[Volfy]

As I mentioned previously, turbo+intercooler complicates the intake temp comparison. What would be perfect is to have an RTD or thermocouple right at the air filter, since that is exactly what an COLD AIR intake is supposed to do. Sucking hot engine compartment air really defeats the whole purpose of it.

I could probably rig something up some instrumentation display directly to temp sensor, which won't be through the OBD2 system.

 

[Slip_Angle]

As I mentioned previously, turbo+intercooler complicates the intake temp comparison. What would be perfect is to have an RTD or thermocouple right at the air filter, since that is exactly what an COLD AIR intake is supposed to do. Sucking hot engine compartment air really defeats the whole purpose of it.

I could probably rig something up some instrumentation display directly to temp sensor, which won't be through the OBD2 system.

Yeah, I understand but it may still be interesting to compare equivalent ambient temp to intake temp regardless of the sensor location.

 

[MichaelJohnson]

As I mentioned previously, turbo+intercooler complicates the intake temp comparison. What would be perfect is to have an RTD or thermocouple right at the air filter, since that is exactly what an COLD AIR intake is supposed to do. Sucking hot engine compartment air really defeats the whole purpose of it.

I could probably rig something up some instrumentation display directly to temp sensor, which won't be through the OBD2 system.

I must have missed that post. My bad.

 

[Volfy]

No problem. It's all good. I agree whatever data points we can come up with collectively still are good to know, provided we all understand how the numbers correlate.

I'll start writing down some numbers. My Stinger still has stock airbox, so that would be a good comparison.

 

[MichaelJohnson]

Here are some numbers from my trip home this evening. Again, I have removed the stock snorkel behind the bumper cover and I have the BMS Intercooler installed.

On cold start from parking lot at work:
These were taken during the first minute of idle in the parking lot.
99 exterior temp according to car
107 IAT (via JB4)

On highway at 65mph:
96 exterior temp according to car
105-107 IAT (via JB4)

City streets/traffic at roughly 40mph:
95 exterior temp according to car
111-113 IAT (via JB4)