Injen "Tru" Cold Air Intake install (pics)

[scrming]

Well... in the V6 world, the Injen is the only intake that has shown any kind of gains in independent testing... I'm very happy with the Injen!

[scrming]

One thing that amazed me was how quick the IAT would come down just by starting the car! With the stock plastic tube, it would take a mile or two of highway speed driving to get the IAT to come down! Forget it you are just driving around town!

Watch how fast the IAT comes down...



Now here is on old video i made with the stock intake... skip to about 1:20 and watch how slowly the IAT comes down...



Again... in the V6 world we have a lot few choices with it comes to intakes... but for the money I think Injen is the best... so far anyways... LOL

[FFPM73]

Glad you guys are happy with the Injen. I know I am.
I drove my car the other day for about 4 hours, came home and left the car running and felt the intake pipe, it was warm by the throttle body but further down the pipe and at the filter, the pipe was still cold.........just sayin

[SGOS252382]

Originally Posted by scrming

One thing that amazed me was how quick the IAT would come down just by starting the car! With the stock plastic tube, it would take a mile or two of highway speed driving to get the IAT to come down! Forget it you are just driving around town!

Watch how fast the IAT comes down...



Now here is on old video i made with the stock intake... skip to about 1:20 and watch how slowly the IAT comes down...



Again... in the V6 world we have a lot few choices with it comes to intakes... but for the money I think Injen is the best... so far anyways... LOL

Difference in outside air temp? That would explain a lot.

[mrray13]

To add to what Jannetty said, aluminium is a great transferring heat from one source to another, like air to air intercoolers, or water to air intercoolers. Now, that being said, I'll argue that the tube isn;t just transferring heat into the tube. Why? I've relocated my factory IAT sensor lower in the tube, away from the engine, radiator hoses, scrming hasn't. His IAT is still in the MAF, and that's just off the throttle body, yet we are seeing the same type of results. If the aluminum tube was only transfrerring the heat into the intake charge, scrming would see way higher IAT temps then I do, but he doesn't. Result? The tube is transferring some, if not all the heat, out of the intake charge, not to mention, the initial charge is cooler anyway due to filter location.

Just an observation.

[scrming]

Originally Posted by SGOS252382

Difference in outside air temp? That would explain a lot.

Yes, there was a difference in the ambient temp... HOWEVER even when the ambient was about the same the stock intake would still do the same thing, come down some what, but very slowly... and as I mentioned would take a mile or two at highway speed to bring the IAT down anywhere close to ambient... With the Injen the IAT drops a lot more rapidly and basically as soon as the car starts moving the IAT is just a few degrees over ambient... This is really noticeable at the track! My IAT is a lot cooler by the time I stage than it ever was with the stock setup!

[axis]

Originally Posted by mrray13

To add to what Jannetty said, aluminium is a great transferring heat from one source to another, like air to air intercoolers, or water to air intercoolers. Now, that being said, I'll argue that the tube isn;t just transferring heat into the tube. Why? I've relocated my factory IAT sensor lower in the tube, away from the engine, radiator hoses, scrming hasn't. His IAT is still in the MAF, and that's just off the throttle body, yet we are seeing the same type of results. If the aluminum tube was only transfrerring the heat into the intake charge, scrming would see way higher IAT temps then I do, but he doesn't. Result? The tube is transferring some, if not all the heat, out of the intake charge, not to mention, the initial charge is cooler anyway due to filter location.

Just an observation.

So you're stating that most, if not all the heat that is built up in the aluminum is defying all known rules and only transfering it's heat in one direction? Not to mention that while driving down the road, the tube will heat up to approximately the same temp as the engine bay, yet still doesn't affect the air inside the tube? Is the aluminum they use made of some special metal taken off the desert floor around Groom Lake in Nevada? I think you aren't thinking about what's happening logically. You're just trying to use the data to make the CAI look like it's doing something thats impossible to do.

If you think about airflow through a tube, the heat coming off the tube wall isn't going to be transmitted evenly throughout all the air in the tube. The air is moving very fast so the heat will stay relatively closer to walls as it's being sucked into the engine. That means the air in the middle (where the MAF sensing hole is) should be cooler than the air closer to the wall.

Where is your IAT sensor located? Is it not built into the MAF? If you did move it, WHY? What advantage is there from moving the IAT sensor?

Originally Posted by scrming

Yes, there was a difference in the ambient temp... HOWEVER even when the ambient was about the same the stock intake would still do the same thing, come down some what, but very slowly... and as I mentioned would take a mile or two at highway speed to bring the IAT down anywhere close to ambient... With the Injen the IAT drops a lot more rapidly and basically as soon as the car starts moving the IAT is just a few degrees over ambient... This is really noticeable at the track! My IAT is a lot cooler by the time I stage than it ever was with the stock setup!

IMO, the IAT's drop quicker because it flows better than the OEM intake. That doesn't mean it's the best thing since sliced bread though. It doesn't take a lot to flow better than the OEM accordian intake pipe. That's not saying that this isn't a good intake. It's just that it isn't the end all/be all of intakes, like yall are making it out to be. It may be the best intake available for the V6 since I haven't seen any of the others. In the end, as long as you're happy with it, that's all that matters.

[wbt]

Originally Posted by Mrniceguy633

Yay nice job wbt. I knew you'd come through! Very impressive. I too thought about getting a real cai myself. One question, has it throw any codes?

- Rico

Thank you!

No codes. It is designed to work without a tune.

[FFPM73]

I don't know if you can tell from the pics, but on the tube where the Injen name tag is, it says it is a "tuned" CAI. Therefore no codes or additional tuning required.

[wbt]

Had a chance to drive it around more today. Outside temp was 85 deg. Car felt more responsive in the lower RPM range than previously. Also, at 3K it is almost like a switch is turned on. The pull of the car is impressive.

Dyno would be the only accurate way to compare however the butt noticed a difference today vs. directly after install.

[JANNETTYRACING]

Originally Posted by mrray13

To add to what Jannetty said, aluminium is a great transferring heat from one source to another, like air to air intercoolers, or water to air intercoolers. Now, that being said, I'll argue that the tube isn;t just transferring heat into the tube. Why? I've relocated my factory IAT sensor lower in the tube, away from the engine, radiator hoses, scrming hasn't. His IAT is still in the MAF, and that's just off the throttle body, yet we are seeing the same type of results. If the aluminum tube was only transfrerring the heat into the intake charge, scrming would see way higher IAT temps then I do, but he doesn't. Result? The tube is transferring some, if not all the heat, out of the intake charge, not to mention, the initial charge is cooler anyway due to filter location.

Just an observation.

We have to look at the laws of Physics, Heat always Seeks cold.

If the incoming air is cooler than the engine compartment then the heat from the engine compartment will dominate and warm the charge air through the aluminum.

A Ceramic Metallic Thermal Barrier coating on the aluminum pipe would Fix that.

Ted.

[scrming]

Originally Posted by JANNETTYRACING

We have to look at the laws of Physics, Heat always Seeks cold.

If the incoming air is cooler than the engine compartment then the heat from the engine compartment will dominate and warm the charge air through the aluminum.

A Ceramic Metallic Thermal Barrier coating on the aluminum pipe would Fix that.

Ted.

but the tube also extends into the cooler air so some of that heat is going to transfer to the air outside the tube...



Laws of Physics or not... All I know is my IATs are a LOT better than with the stock intake and it's plastic tube... especially if I get stuck in the staging lanes...

[scrming]

Originally Posted by wbt

Had a chance to drive it around more today. Outside temp was 85 deg. Car felt more responsive in the lower RPM range than previously. Also, at 3K it is almost like a switch is turned on. The pull of the car is impressive.

Dyno would be the only accurate way to compare however the butt noticed a difference today vs. directly after install.

Did dyno mine... on the V6 it showed a nice improvement in the low end torque... This was over my modified stock intake, so I don't have a good 100% stock vs Injen... but there was definitely a gain... Looks like it shaved a couple tenths off my ET...

[JANNETTYRACING]

Originally Posted by scrming

but the tube also extends into the cooler air so some of that heat is going to transfer to the air outside the tube...



Laws of Physics or not... All I know is my IATs are a LOT better than with the stock intake and it's plastic tube... especially if I get stuck in the staging lanes...

One Thing for sure, The MPH at the Track will Tell All, if you have a consistent baseline to compare to.

As Long As your Happy that is all that counts.

Have Fun and Be Safe.

Ted.