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Old 08-14-2013, 03:59 PM   #953
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Originally Posted by evo4g63 View Post
It's more of a pop type sound
Could it be the recirc diaphragm / butterfly slamming shut? You could see that on a dyno run or maybe with a go-pro under the hood.
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Old 08-14-2013, 05:37 PM   #954
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@evo4g63 Are you on the stock clutch?
I am on the stock clutch and flywheel


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Originally Posted by RedLeader View Post
If you want to make the drive to tucson on friday night for our local meet, I'll be more than happy to demonstrate said noise for you. And maybe I'll get abatter idea of whatever popping noise you're experiencing sounds like.
I may take you up on that. It's easy to replicate like I said. WOT and shift at high rpm. You'll hear it each time. There are the other ways as I mentioned to replicate but this is the easiest to do so.

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Could it be the recirc diaphragm / butterfly slamming shut? You could see that on a dyno run or maybe with a go-pro under the hood.
We are hosting a dyno day out here on the 23rd and 24th. Toni @FA20club is coming down to tune some vehicles. I am just paranoid due to DI issues.
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Last edited by evo4g63; 08-14-2013 at 06:24 PM.
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Old 08-14-2013, 05:46 PM   #955
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Anyone else running the fa20club tune? If so how many revisions have you gotten and are you seeing any lean spikes or shuddering below 3k under partial throttle? I am seeing lean spikes up to 19 on my latest tune.
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Old 08-14-2013, 06:08 PM   #956
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I was actually asking about Nick (the guy with 14 flat), sorry I wasn't clear.
245/45/17 Federal 595's with -2.2 camber in the rear. I also was still spinning the tires in 1st n 2nd. I'll be going out again sometime soon and actually airing down the tires + working on a perfect launch to break mid 13's
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Old 08-14-2013, 06:53 PM   #957
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This is interesting and worth discussing. Why are the MAP sensors failing?
I don't think the sensors are failing, i think they are hitting max voltage for a pre determined (by the ecu code) amount of time / capped out. The solution is to install a map sensor with a wider range and redo the map scale table in the rom.

From the FSM:
P0108
Manifold absolute pressure sensor voltage is 3.906
V or more for 2 seconds or more.
(1 trip detection logic)

The cheap fix is to disable to CEL in the rom. the Proper solution is to install a sensor with more range and calibrate it properly since there are port injector scale tables that rely on the map sensor output as an input. Sorta like boost comp tuning on AEM.
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Old 08-14-2013, 07:47 PM   #958
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I am thinking of upgrading my map sensor for when the stage 2 kit comes out. Any one purchased one they would recommend?
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Old 08-14-2013, 11:16 PM   #959
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I am thinking of upgrading my map sensor for when the stage 2 kit comes out. Any one purchased one they would recommend?
Here in Perth Sprintex provided a 2.5 bar MAP sensor with their kits (which includes the intercooler). I will find out what make/brand it is for you.
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Old 08-14-2013, 11:21 PM   #960
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Originally Posted by ft_sjo View Post
A crackling noise from the front?
Hey I get this once the engine is warmed on a couple of WOT's NA in 1st gear.

Is that "Normal"?
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Old 08-14-2013, 11:21 PM   #961
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Just another thing we got screwed out of here in the US..
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Old 08-14-2013, 11:23 PM   #962
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I am thinking of upgrading my map sensor for when the stage 2 kit comes out. Any one purchased one they would recommend?
I believe @moto-mike is working with the omni 3bar, awaiting details on that one.
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Old 08-15-2013, 12:40 AM   #963
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Garage
Just added @Ethan to the list... he got his S/C installed today!
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Old 08-15-2013, 01:07 AM   #964
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o.O just found out that Rockingham is doing a TnT this saturday evening. I may have to go play with the big boys. See what I can get out of her
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Old 08-15-2013, 09:23 PM   #965
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Still have this annoying noise. I have checked the car over and over. Good news is that it's not the DI popping sound. After watching several vids on this I am at least that much relieved. I just wish I could figure it out as its a thorn in my side.
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Old 08-15-2013, 09:25 PM   #966
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Can you get a recording?
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