Fujita Cold Air Intakes may be defective!

[compdoc777]

To all:

If you have the Redline and you are using the Fujita CAI you are loosing HP/Torque. The design seems to be bad, I would not say this is a flow issue rather than a flow reading issue.

I heard the bungs on these tubes were messed up at one time, but I made sure my bung that attaches the MAS was in the correct postion.

The people from Hahn told me to put the stock box back on and this would correct the problem. I followed the request just to test and my car is now back up to the performance level it was before I added the CAI.

I don't know if all CAI's have this problem. Also, I don't know if my other mods cause problems, but I can't see how as the MAS is reading air before all of my mods.

So this goes back to Fujita we need a resolution or some change back in our pockets.

[shabby]

The problem with this intake is that the area where the maf sits is 2.5", the stock intake measures around 2.9". This completely throws off your maf readings, last year when i made a big stink about this on the solstice forum fujita said it wasnt a problem... i say bs.
It doesnt take a rocket scientist to figure out that when the area where the maf is smaller than stock the maf will read more air.

Look for yourself...


Btw this is only for the turbo kappa's, not sure how the 2.4L version is built.

[compdoc777]

Anyone have the specs on the GM CAI?

[shabby]

The gm cai is the same size as the stock unit, gm wouldn't mess it up like fujita did.

[Kappasphere]

Originally Posted by compdoc777

To all:

If you have the Redline and you are using the Fujita CAI you are loosing HP/Torque. The design seems to be bad, I would not say this is a flow issue rather than a flow reading issue.

I heard the bungs on these tubes were messed up at one time, but I made sure my bung that attaches the MAS was in the correct postion.

The people from Hahn told me to put the stock box back on and this would correct the problem. I followed the request just to test and my car is now back up to the performance level it was before I added the CAI.

I don't know if all CAI's have this problem. Also, I don't know if my other mods cause problems, but I can't see how as the MAS is reading air before all of my mods.

So this goes back to Fujita we need a resolution or some change back in our pockets.

What specific problem are you having? We dyno tested this when it was developed. Here is the dyno results from our testing.

Do you have dyno results showing power loss? How was your car configured at the time of running your dyno's? If you have any questions, you can always give me a call here at the office.

Thanks,
Abel

[bones]

That dyno sheet belongs in the sunday paper......The funny paper. What a joke. This is actually pretty old news. RPI has tested a lot of these and found 0 h.p or actually lost h.p. Let the buyer beware.

[|V3nom|]

the only problem ive had with my dejon is how loud it is, ima switch to a different filter, ones that more water protective and see if that deadens the sound some.

[shabby]

[SSGTBARCLAY]

If you have the Redline and you are using the Fujita CAI you are loosing HP/Torque.

Does anyone have the HP/Torque readings from the GM CAI? Does the GM CAI improve power?

[Friz]

I'd like to hear from Hahn and RPI on this issue. I bought the Fujita and have not seen any problems, but I do plan on getting a new intercooler in the future. Since we are limited somewhat on what we are able to modify warranty wise, I want to make sure that I am getting the most bang for my buck.

[compdoc777]

Originally Posted by Kappasphere

What specific problem are you having? We dyno tested this when it was developed. Here is the dyno results from our testing.

Do you have dyno results showing power loss? How was your car configured at the time of running your dyno's? If you have any questions, you can always give me a call here at the office.

Thanks,
Abel

My specific problem is when I hit the gas it bogs down when I release off the gas a little it has a burst of speed and accelerates like it should Basically I have to play with the throttle to get it to go when I hammer the gas. Where I should be able to just press the pedal and go. With the stock piece back on I do not have this problem.

[MidniteBlues]

Originally Posted by bones

That dyno sheet belongs in the sunday paper......The funny paper. What a joke. This is actually pretty old news. RPI has tested a lot of these and found 0 h.p or actually lost h.p. Let the buyer beware.

Yes, and lets not dig this old argument back up. Let the masses search the forum and read research this thoroughly. It got pretty bad nasty and heavy between supporting vendors and bottom line nothing was resolved, and nobody tested anything. It is a well known fact that CAI's (AKA Cold Air Intakes) are nothing more than HAI's (Hot Air Intakes). Even GMPP's has been "tested" at least in the 2.4L engines to have not really improved HP, if anything, they basically maintained what the OEM air box does. The only thing these so called HAIs do is give ya a better sound..AND as expensive as they are, your lost dollars..

I am really surprised that Kappa even posted that silly useless dyno test that is obsolete and the test were skewed because they were done with the hood opened and readings not in this real world.. It was also the same dyno posted last year that started all the flaming and counter dynos proving the loss of power.

At one point a challenge was issued to test ALL of these claims against one another and to do dynos in the real world were issued, in the end, nothing was done and the topic died and no tests were performed. The only way to find out is to do your own test on your own car. You make 3 runs with it stock, replace the HAI, do 3 more runs.. THAT will tell the truth..Test after test on "other" kappas, have mostly prove that ALL CAI, err HAIs suck a lot of HOT air..buy it only for the sound "enhancement", you will not see any power gains of any significance AND in some cases, power to the wheels WAS lost...

PS: Oh, I own a GMPP HAI BTW.. The only reason I left it on was it sounds good, and my "but" dyno THINKS it is faster by 6-7HP. Just for that mod, I'm not going spend a few to many dollars (what it cost now to dyno, 50-100 per test) to find out that I am losing power..whoopee..

[Ernest]

My Fujita Intake was found to be faulty. As you know when I had my R/L it would throw MAF sensor codes all the time. After I traded it in and the new owner had the same problem, the dealer finally found the cause. It was a crack in the tube on the underside out of sight. so, intake removed, stock intake installed & problem solved. This may have been an isolated incident, but thought I would post it.

[ceeker]

Originally Posted by SSGTBARCLAY

Does anyone have the HP/Torque readings from the GM CAI? Does the GM CAI improve power?

I've never seen any of the CAI prove they increase power. They can show they improve the air flow volume wise, but this is proving to not increase horsepower.

The issue with the Fujita is that several are having an issue with it throwing codes since the sensor location is in question. Some have said it decreases power or adds nothing HP wise.

The general idea for a CAI is for the looks and sound, nothing else.

If your looking just for a HP increase, keep your stock intake box and add the K&N filter.

There possibly is an issue with the piping size where the sensor is located on the Fujita intake.

I have the Dejon CAI and have never seen a code or an acceleration issue.
The Dejon is loud, but I personally like the way it sounds!

[MidniteBlues]

I agree with the ceeker and what Ernest has posted (altho Ernest problem was probably unique, never the less even without a crack, they throw codes), one more issue that not has mentioned is the fact that the fujita filters are oiled, many reports of them contaminating the MAF sensor, were as, you have to remove the sensor and clean the dang thing to eliminate CELs..

[compdoc777]

Originally Posted by ceeker

I've never seen any of the CAI prove they increase power. They can show they improve the air flow volume wise, but this is proving to not increase horsepower.

The issue with the Fujita is that several are having an issue with it throwing codes since the sensor location is in question. Some have said it decreases power or adds nothing HP wise.

The general idea for a CAI is for the looks and sound, nothing else.

If your looking just for a HP increase, keep your stock intake box and add the K&N filter.

There possibly is an issue with the piping size where the sensor is located on the Fujita intake.

I have the Dejon CAI and have never seen a code or an acceleration issue.
The Dejon is loud, but I personally like the way it sounds!

This is not the case however in the K-series motors from Acura/Honda.

The CAI is a much needed replacement for the stock airbox. In the my Acura is a true CAI. My intake is near the ground fed through a front facing grill on my left side. Cold air it picked up and lowers IAT by a huge number. The stock box sits right next to the engine and over the transmission so you can imagine the heat that gets built up when sitting idle.

I would not say that it adds HP more than it reduces heat soak and allows cooler air into the intake which allows the motor to produce the power it should be instead of robbing it of power from the heat. I also use a heat resistant thermo gasket between the intake manifold and the head which further drops intake temps.

Yet the CAI for the RL looks fine and would work correctly if it was designed to work metering the air like the stock piece in fact I think it would improve performance a bunch. Yet, like I say it is not metering the air correctly hence the bogging on WOT.

I think Fujita needs to look into this and come up with a fix. If it means sending in our pipe to be expanded to correct size at least something. Don't they have a warranty against defects and workmanship? I will look at my paper work tonight.

[K9ONU]

Originally Posted by MidniteBlues

Yes, and lets not dig this old argument back up. Let the masses search the forum and read research this thoroughly. It got pretty bad nasty and heavy between supporting vendors and bottom line nothing was resolved, and nobody tested anything. It is a well known fact that CAI's (AKA Cold Air Intakes) are nothing more than HAI's (Hot Air Intakes). Even GMPP's has been "tested" at least in the 2.4L engines to have not really improved HP, if anything, they basically maintained what the OEM air box does. The only thing these so called HAIs do is give ya a better sound..AND as expensive as they are, your lost dollars..

I am really surprised that Kappa even posted that silly useless dyno test that is obsolete and the test were skewed because they were done with the hood opened and readings not in this real world.. It was also the same dyno posted last year that started all the flaming and counter dynos proving the loss of power.

At one point a challenge was issued to test ALL of these claims against one another and to do dynos in the real world were issued, in the end, nothing was done and the topic died and no tests were performed. The only way to find out is to do your own test on your own car. You make 3 runs with it stock, replace the HAI, do 3 more runs.. THAT will tell the truth..Test after test on "other" kappas, have mostly prove that ALL CAI, err HAIs suck a lot of HOT air..buy it only for the sound "enhancement", you will not see any power gains of any significance AND in some cases, power to the wheels WAS lost...

PS: Oh, I own a GMPP HAI BTW.. The only reason I left it on was it sounds good, and my "but" dyno THINKS it is faster by 6-7HP. Just for that mod, I'm not going spend a few to many dollars (what it cost now to dyno, 50-100 per test) to find out that I am losing power..whoopee..

The GMPP Intake will have better results on the Redline than on the 2.4 because we have an intercooler to cool down the even hotter air(than intake air) coming out of the turbo...

[compdoc777]

Originally Posted by K9ONU

The GMPP Intake will have better results on the Redline than on the 2.4 because we have an intercooler to cool down the even hotter air(than intake air) coming out of the turbo...

Don't know about that. The Intake air goes from the intake directly into the the turbo from there it blasted into the intercooler and then into the intake.

It would have a nice cooling effect on the turbo.

[bones]

My dejon ran 5 to 7 degrees warmer than AAT . My gmpp intake ran the same #s. With the stock airbox back on it runs the same 5 to 7 degrees warmer than AAT. No difference. Those shiny tubes do look better though.