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Old 09-02-2005, 11:35 PM   #1
Burton4g63
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Default The "Miracle Mod" on an RS

just a quick question, will the grounding mod work on a 2.5 rs? I also have bogging issues at low rpms.

Where should i ground the two points on the intake manifold?

Should I ground my injen intake also?
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Old 09-02-2005, 11:39 PM   #2
FriedIceCream
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the previous thread said it was for MAP sensor I think..05's have MAF...but if it works us as well i would to know!!
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Old 09-03-2005, 12:03 PM   #3
Russell Rogers
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works greta on maf cars.
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Old 09-03-2005, 02:09 PM   #4
El_Kameleon_G
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The mod worked great on my car and I only have 2 wires. One from batt. to strut bolt and the other from batt. to intake manifold. Also, I sanded and cleaned stock grounds as the they ground over the paint. Smooths out engine enough to notice.
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Old 09-03-2005, 04:05 PM   #5
FalconRS
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I posted a thread in the electrical section about my ground kit for my '05. Definitely made a difference. Smoother idle, Volts gauge showed more juice, and it does feel like that low RPM bog is reduced by quite a bit.
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Old 09-03-2005, 09:11 PM   #6
i_luv_my_scooby
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Where at Falcon? And I thought the grounding kit is BS. I've been reading a lot about it and they say its BS.
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Old 09-03-2005, 10:27 PM   #7
FalconRS
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Well, I dunno about BS. If a smoother idle is more of a "subjective" type of result, the extra 0.5V on my Volts gauge from before and after is certain hard evidence it did something. My gauge before always showed just under the 14V mark, 13.7-13.8V. After installing my ground kit, it never drops below the 14.2-14.3 range. And I've always been taught 14.x Volts is what a voltmeter SHOULD show on a running car, always. So it did something.

Best place to look with the most accurate write-up is on my cardomain site...

http://www.cardomain.com/ride/2074176/2

The pictures are out of date, I've since changed things around, but the write-up I did IS correct.
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Old 09-04-2005, 01:00 PM   #8
Yesitsdrew5310
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Paranoid Fabrications makes a grounding kit made to fit the 2.5 RS or the WRX. The kit did alot more than I expected. The jerkiness in 1st gear went away, and now after you hit the gas a bit, you coast instead of jerk to slow down. It feels like my engine woke up and is new (and I own an 05'). I would strongly suggest just getting the kit; it works great for everyone I know that has it. Here is the link:

Well thats really stupid, I cant post url links untill 10 messages. That will get annoying. Well go to camotoy.you know what. Then click on subaru parts, and it will get you there.


Happy driving!


Drew Brashler
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Old 09-04-2005, 03:50 PM   #9
El_Kameleon_G
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Or you could go to home depot and make one yourself, like me, for about $5
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Old 09-04-2005, 04:49 PM   #10
RSimport
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I did this to MY99 rs and it helped it alot. 1st gear jerkyness was gone, seemed to help with the flat spot in the rpm as well. Plus, the car idled much better. I don't think the mod is BS at all. And those who say it is either didn't try it or just didn't notice it as much as everyone else did.

Chris
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Old 09-04-2005, 04:59 PM   #11
Kevin Thomas
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Quote:
Originally Posted by i_luv_my_scooby
Where at Falcon? And I thought the grounding kit is BS. I've been reading a lot about it and they say its BS.
Who are 'they' that said this? Are you talking about here in this huge thread about this mod?
NA 2.5 Hesitation + SPG = New Car
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Old 09-05-2005, 03:24 AM   #12
i_luv_my_scooby
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Will these grounding kits make a difference in an automatic RS?
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Old 09-05-2005, 04:13 AM   #13
zechsiw
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grounding really make a difference and voltage stablizer does too.
grounding for auto, just make sure you run a wire to tranny, you will get smoother gear change. coz I just reconnect my grounding (add a wire to tranny), I really feel the difference.

recently I made some voltage stablizers for my friends. STi w/ catless turbo back, Mazda3 stock auto, civic stock auto. All of them feel more low end torque.
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Old 10-08-2005, 02:08 PM   #14
resident1155
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running a ground wire to your tranny is not going to help your transmission shift. That is the most ridiculous thing I have ever heard.
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Old 10-08-2005, 09:20 PM   #15
Albert
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Quote:
Originally Posted by resident1155
running a ground wire to your tranny is not going to help your transmission shift. That is the most ridiculous thing I have ever heard.
Where is the TCM located on most modern transmissions?...either inside the tranny or bolted to the casing.
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Old 10-24-2005, 01:23 AM   #16
resident1155
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Seriously though, lets use some common sense. upgrading the ground wires is not going to make your transmission miraculously perform better in any way. I have run an 8 guage ground directly to a bolt on my 4eat transmission. I can tell you it doesn't do much.

Somebody needs to remove this thread. I have done this mod. This is no miracle mod. It only helps fix the very minor issues. People need to stop exaggerating it by making multiple threads. More in performance can be seen from adding ngk iridium plugs. I noticed more of a difference from those than the grounding mod. A miracle would be me opening my hood tomorrow to find an ej20T instead of my ej25.

Last edited by resident1155; 10-24-2005 at 01:34 AM.
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Old 10-24-2005, 02:11 AM   #17
Airboy
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Quote:
Originally Posted by FalconRS
Well, I dunno about BS. If a smoother idle is more of a "subjective" type of result, the extra 0.5V on my Volts gauge from before and after is certain hard evidence it did something. My gauge before always showed just under the 14V mark, 13.7-13.8V. After installing my ground kit, it never drops below the 14.2-14.3 range. And I've always been taught 14.x Volts is what a voltmeter SHOULD show on a running car, always. So it did something.

Best place to look with the most accurate write-up is on my cardomain site...

http://www.cardomain.com/ride/2074176/2

The pictures are out of date, I've since changed things around, but the write-up I did IS correct.
Where/what are your voltmeter wires connected to?
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Old 10-24-2005, 08:35 AM   #18
t3hWIT
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I'd do it on my car to fix the bogging probem, but it might be caused by the torqueless 1.8...
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