Modifying the Airaid CAI Intake Tube

[JimIII@JDM]

We did this back when the 6.2L Raptor first came out

http://www.fordraptorforum.com/f24/more-team-jdm-airaid-intake-testing-1346/

 

[pat247]

JimIII, thanks for posting the link to that thread, JDM was the pioneer for this modification. I knew that I had seen this posted long before I ever bought my Raptor. Two speed shops with dyno sheets to show similar results is verification that this mod has positive gains in hp through the entire rpm range.

 

[Ruger]

We did this back when the 6.2L Raptor first came out

http://www.fordraptorforum.com/f24/more-team-jdm-airaid-intake-testing-1346/

That's plumb dandy with all the pictures deleted.

 

[cups]

We did this back when the 6.2L Raptor first came out

http://www.fordraptorforum.com/f24/more-team-jdm-airaid-intake-testing-1346/

I hate to ask for dyno proof..... But I gotta, just friendly like. This all occurred while I was shopping for an intake, so I followed pretty close.
I don't recall any statement or test claiming any gains at lower rpm from the modified (102) vs the 77 intake.

Did you test the modified vs the unmodified?
Am I mistaken about the airflow measurement being adversely affected at lower rpm with the modified tube? (It's ok, I can handle being wrong. Don't fear tell inning me so)


6.2 - Power To Do More

 

[JimIII@JDM]

I hate to ask for dyno proof..... But I gotta, just friendly like. This all occurred while I was shopping for an intake, so I followed pretty close.
I don't recall any statement or test claiming any gains at lower rpm from the modified (102) vs the 77 intake.

Did you test the modified vs the unmodified?
Am I mistaken about the airflow measurement being adversely affected at lower rpm with the modified tube? (It's ok, I can handle being wrong. Don't fear tell inning me so)


6.2 - Power To Do More

I just noticed the pictures weren't loading in that old thread but here are some dyno graphs from the first test we ran.

The truck was a 2010 mods included a custom tune, Kooks Headers with cats, and magnaflow catback. It made 376 RWHP with the stock air box and 388 RWHP after we installed the modified 102mm Airaid intake.

One thing to take note of the stock airbox is 80mm, the Airaid is 77mm. This is going to create a difference in the airflow reading from the MAF sensor and will cause the PCM to add more fuel correcting for any increase in air flow. That is why there is "No tune required" (for a stock truck) however when we bolted it on this truck that was already tuned with Full exhaust it lost 7 RWHP HP and had an obvious rich condition with the AF ratio at WOT. So this "no tune required" air kit does require some tuning if you want to benefit your power.

When we first reported these findings in that original post Airaid contacted us less than happy that we modified their tube and reported a power loss from the air kit. We simply reminded them these are real world tests and modifications the general public is going to do on their own and we want to have tunes that will support it.

This is what we gained from just a Tune on a test truck back in 2010

Here is what we gained (different truck) with a Tune and the modified Airaid intake together, there is a consistent positive gain with the Modified Airaid intake.

 

[Ruger]

Airaid CAIs use a very large filter and are notorious for dismounting during harsh driving conditions offroad and this is even more likely with this mod as the collar has been weakened. However there is a simple solution for this by using something to wedge the far end of the filter to keep it from bouncing.

I have considered wedging a chunk of closed cell foam between the end of the filter and the inside of the air box. I think that would do it.

 

[pat247]

I have considered wedging a chunk of closed cell foam between the end of the filter and the inside of the air box. I think that would do it.

That is what I used but I don't off road much, for spirited driving on rough terrain some other method might work better.

 

[cups]

So far mine has never come off. But I keep checking.


6.2 - Power To Do More

---------- Post added at 09:17 AM ---------- Previous post was at 09:11 AM ----------

I just noticed the pictures weren't loading in that old thread but here are some dyno graphs from the first test we ran.

The truck was a 2010 mods included a custom tune, Kooks Headers with cats, and magnaflow catback. It made 376 RWHP with the stock air box and 388 RWHP after we installed the modified 102mm Airaid intake.

One thing to take note of the stock airbox is 80mm, the Airaid is 77mm. This is going to create a difference in the airflow reading from the MAF sensor and will cause the PCM to add more fuel correcting for any increase in air flow. That is why there is "No tune required" (for a stock truck) however when we bolted it on this truck that was already tuned with Full exhaust it lost 7 RWHP HP and had an obvious rich condition with the AF ratio at WOT. So this "no tune required" air kit does require some tuning if you want to benefit your power.

When we first reported these findings in that original post Airaid contacted us less than happy that we modified their tube and reported a power loss from the air kit. We simply reminded them these are real world tests and modifications the general public is going to do on their own and we want to have tunes that will support it.

This is what we gained from just a Tune on a test truck back in 2010

Here is what we gained (different truck) with a Tune and the modified Airaid intake together, there is a consistent positive gain with the Modified Airaid intake.

Thankyou. Guess I talked to the wrong guy. Do you still use or recommend this mod to the Airaid tube?


6.2 - Power To Do More

 

[JimIII@JDM]

Thankyou. Guess I talked to the wrong guy. Do you still use or recommend this mod to the Airaid tube?

I do, but requires a custom tune for the modification, I always recommend contacting your tuner first!

JimIII

 

[cups]

JimIII. Thankyou very much for your responses. Now I need to revisit the whole intake thing.


6.2 - Power To Do More