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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain.


View Poll Results: Are you experiencing the same problem?
Yes - I have an aftermarket intake only. 14 9.21%
Yes - I have an aftermarket intake and a tune. 15 9.87%
Yes - I'm all stock. 11 7.24%
No - I have an aftermarket intake only. 43 28.29%
No - I have an aftermarket intake and a tune. 3 1.97%
No - I'm all stock. 66 43.42%
Voters: 152. You may not vote on this poll

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Old 08-27-2012, 02:07 PM   #71
xjohnx
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Quote:
Originally Posted by sportsguy83 View Post
But it feels held up in the higher end.

Your observation along with this one is what I found when I removed the K&N drop in filter to go back to stock.
in my case, i didn't notice any power difference going back to stock, it was much quieter though.
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Old 08-27-2012, 02:07 PM   #72
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out of curiosity I removed my K&N Panel Filter and reinstalled the stock filter on my Visconti Tuned BRZ. Engine seems a lot smoother in the 1500-3000 RPM range.

Doubt that will help anyone here, but just an observation.
hmmm i have the hks filter and my car runs better with it than it does with the stock filter.
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Old 08-27-2012, 02:24 PM   #73
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Is it me, or does every time Memphis posts, I read it like Kevin Bacon is saying it with the tone of his avatar? haha
Just think, I actually look like that. There is a reason he is my avatar.
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Old 08-27-2012, 03:01 PM   #74
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Maybe its unrelated?

http://www.ft86club.com/forums/showthread.php?t=15577
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Old 08-27-2012, 03:07 PM   #75
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Several posters have confirmed that the issue goes away when the stock intake is reinstalled.
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Old 08-27-2012, 03:07 PM   #76
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I never had that issue. I've been very lucky with my BRZ. The only common issue I've had was the chirp. Everything else had been flawless.
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Old 08-27-2012, 03:18 PM   #77
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I dont have any CELs either. The idle dips when the a/c clutch turns on and I have chirping, but nothing else.
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Old 08-27-2012, 03:27 PM   #78
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I know in the LS1/2/3/4/6/7/9 crowd, most tuners won't touch a car without a MAF "screen/honeycomb," because the air is so turbulent that it throws off MAF readings, thus affecting the tune.

I bet something like this in the intake pipe would reduce or eliminate the bog:
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Old 08-27-2012, 04:11 PM   #79
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I know in the LS1/2/3/4/6/7/9 crowd, most tuners won't touch a car without a MAF "screen/honeycomb," because the air is so turbulent that it throws off MAF readings, thus affecting the tune.

I bet something like this in the intake pipe would reduce or eliminate the bog:
Posted this earlier too from treadstone for around $20. I don't think it'll work but it's worth a shot if someone wants to experiment.
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Old 08-27-2012, 04:42 PM   #80
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Posted this earlier too from treadstone for around $20. I don't think it'll work but it's worth a shot if someone wants to experiment.
The lowest diameter I saw on treadstone was 3".... I think that's too big for our intake?
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Old 08-27-2012, 04:44 PM   #81
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How big is the velocity stack/MAF housing in the Airaid intake?
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Old 08-27-2012, 05:20 PM   #82
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I think the ID is 2.5-2.75, but I could be wrong. I didn't have my calipers on me when I installed it.
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Old 08-27-2012, 08:15 PM   #83
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I think the ID is 2.5-2.75, but I could be wrong. I didn't have my calipers on me when I installed it.
2.70-2.75", my dial calipers don't reach all the way in down in to the throat of the velocity stack.
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Old 08-29-2012, 08:07 AM   #84
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2.70-2.75", my dial calipers don't reach all the way in down in to the throat of the velocity stack.
Exactly, I heard the stock tubing size around the MAF was 2.5... We may have found another contributing factor to this problem.

Took @Sony for a ride in the car last night with the AIRAID. He got to witness the hesitation first hand. In addition, the car also decided to cut power for him too. Took off from a stop, 1-2 was fine, shifted from 2-3 and bam... no power at 2250 RPM. Car started sputtering and losing speed.

I'm going to see if I can fab up some kind of removable straightener and see if it makes a difference.

If I can't get this solved, I will officially be @AJUSA.com 's first returned product. But not before I do a complete review with photos, dynos, videos and a more in-depth article about driving experience. I have the aFe coming in very soon so I'll be pitting these two head to head.
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