What is the best intake for FR-S?

[SkAsphalt]

Originally Posted by 2forme

Do you have a dyno showing safe AFR?

I remember reading (in a lot of places) that it is only in WOT instances where unsafe AFR's actually present themselves. Furthermore, according to multiple tuners/sellers/engineers/experts/hobbiests/moms, etc who have posted here, it is only "unsafe" when running at WOT consistently for long period of time. An example of this? Non stop tunes to prove unsafe AFRs.....

[2forme]

Originally Posted by SkAsphalt

I remember reading (in a lot of places) that it is only in WOT instances where unsafe AFR's actually present themselves. Furthermore, according to multiple tuners/sellers/engineers/experts/hobbiests/moms, etc who have posted here, it is only "unsafe" when running at WOT consistently for long period of time. An example of this? Non stop tunes to prove unsafe AFRs.....

Yea, running unsafe AFRs at high load is what worries me. It doesn't take a lot to hit high load cells in the fuel map (doesn't need to be WOT either).... so depending on your driving style, it might happen more often than not. And if you're buying an intake, chances are you are going to be more prone to drive aggressively.

I've seen what a motor with hot spots in the cylinders can do. Not fun. No one likes dumping money into a car if they don't have to.

[SkAsphalt]

true true

[WiKKiD]

Originally Posted by jpit

Diconnecting the ground terminal is the recommended procedure. Disconnecting does reset the ecu somewhat. However Toyota had said that once the ecu has seen a few hundred miles most of its learning has been accomplished and resetting it doesn't do all that much.

Yes it does it resets fuel trims. And once you do that it will take about 50-100 miles to relearn them

[Accurate Race Shop]

Originally Posted by L3P47

I'm looking at getting the Injen intake for my FR-S. What kind of adjustments without an aftermarket exhaust do you recommend?

You could try to adjust the throttle body if it runs lean but I think you will be fine ounce the car's ECU reset is done. Thats just unhooking the battery and hooking it back up after you install it.

[WiKKiD]

Originally Posted by jasper

You could try to adjust the throttle body if it runs lean but I think you will be fine ounce the car's ECU reset is done. Thats just unhooking the battery and hooking it back up after you install it.

Adjust it in what way? It's drive by wire there's no adjustment on it. Even if there was it wouldn't do anything but slow the car down.

If you want the benefits of a intake get a tune for it. You should be fine with a intake on a stock tune just disconnect the negative terminal for about 15 mins minimum. And once you connect it back start your car and let it idle for 5 mins without touching the throttle. After that it will learn fuel trims as you drive. If its over the threshold for fuel trims you will get a cel. It's normally -10% To +10 before it throws a code.

Only gain you will get from a intake is a louder intake. No hp or trq. The power all intakes showed on a stock car were in the margin of error on a dyno meaning the gain was so little that they could not prove it was from the intake or from other differences like air temp or less humid air. Or waiting a little longer between dyno.





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[Sony]

I have a Perrin CAI on order as of this weekend. They are shipping in the next 2 to 3 weeks I think. I will write a full review after I receive it as well as Dyno's after I get my Re-Tune. I have high hopes that it will perform better than the Airaid Intake that I had.

[jpit]

This was Toyota's explanation for the rough idle issue:

The two automakers diverge on the remedy, however. After 100 miles of learning the powertrain and the driver's driving style, AN reports that the ECU's mapping is pretty much baked in. If engine operation exceeds the established parameters, at low revs the engine succumbs to uneven idling and stalling as the ECU tries to recalibrate to a new range of tolerances. Toyota has said that if the issue is suffered by a car with less than 100 miles, the ECU should be reflashed, but that cars with more than 100 miles should have their ECUs replaced. Subaru, though, has said that the ECU doesn't need to be replaced no matter the mileage – a reflash is all that's required. It appears that some owners who have had the reflash have suffered the problem again.

[Accurate Race Shop]

Originally Posted by WiKKiD

Adjust it in what way? It's drive by wire there's no adjustment on it. Even if there was it wouldn't do anything but slow the car down.

If you want the benefits of a intake get a tune for it. You should be fine with a intake on a stock tune just disconnect the negative terminal for about 15 mins minimum. And once you connect it back start your car and let it idle for 5 mins without touching the throttle. After that it will learn fuel trims as you drive. If its over the threshold for fuel trims you will get a cel. It's normally -10% To +10 before it throws a code.

Only gain you will get from a intake is a louder intake. No hp or trq. The power all intakes showed on a stock car were in the margin of error on a dyno meaning the gain was so little that they could not prove it was from the intake or from other differences like air temp or less humid air. Or waiting a little longer between dyno.





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I don't know much about fuel injection all my hobbies have had carburetors and my thinking was to adjust the throttle cable to get rid of the lean condition that the injen causes in some cases. Mine was fine after I disconnected and reconnected the battery. It felt a little better to me and I trust all the dyno runs that it puts out a gain I think it would be a big risk for a false advertising lawsuit if it didn't. I do not know anything about how a dyno runs work besides they tell you torque and HP I have only had them done when selling a car and I dropped it off and came back to pick it up with the results.

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[sosick]

Originally Posted by mashal

Afe intake hasn't caused any cel with the fa20club tune


-AKA

He said no tune

[OICU812]

lol post over a year old re born...

[m.wood0213]

AEM has been great for me nearly 1 year and no CEL or ECU tune. The MAF tune included is eliminating the CEL.

[frs10]

lol waiting to get my hands on the TRD CAI

[Hanni_0176]

There was just a recent review about different intakes done by Dsport:

http://www.ft86club.com/forums/showthread.php?t=35125

I was pretty dead set on just getting a K&N drop in filter anyway, since I eventually plan on going FI. The Dsport review solidified my choice, and I purchased a K&N Air Filter online yesterday while ordering some Motul Gear 300. Can't wait to install it this weekend!