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Old 08-12-2002, 12:02 PM   #1
Ginseng
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2002 WRB WRX Sedan
2011 Sky Blue Forester Pr

Thumbs up Cusco Lower Arm Bar

Installation was straightforward. Two 19mm bolts on the inboard A-arm mount and two 17mm bolts on the side frame rails. The piece fit absolutely perfectly and symmetrically. It’s a shame this piece sits under the car as the paintjob and welding were both flawless. The color was a metallic blue, a darn good match for the WR Blue Pearl on the shiny side of my car. Cusco makes good stuff.

I was prepared for the steering and turn-in to be more precise but I was truly startled at the effect. While on my setup it did not add much more understeer push, it dramatically sharpened the turn and turn-in feel. The car pretty much is at the limits of what the sad RE92s can do even under relaxed driving. The crispness of left to right transitions is remarkable. On my drive in today, a totally unexpected and delightful benefit made itself clear. The crispness and reduction of excess movement in the steering-frame system made the steering feel quicker! That’s right. Especially on the soft RE92s, I was totally unaware of how much countersteering compensation I was doing even on simple lane changes. The only way I can understand this is that the Lower Arm Bar takes out a major component of the chassis flex, revealing the tires as the only remaining significant weak point.

At $130 bucks, this ranks right up there as yet another great “bang for the buck” tuning value.

My suspension/drivetrain mods:
1. Whiteline polyurethane rear diff washers
2. Cusco 9-position rear swaybar
3. Kartboy aluminum rear droplinks
4. STi Group N transmission mount
5. Kartboy shifter bushing
6. Redline tranny fluids

Wilkey

Thanks yet again to German-Autowerks and the crew there for getting me a great product, cheaply, efficiently and with no hassles whatsoever.
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Old 08-13-2002, 01:38 AM   #2
garface
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Do you have a pic of it?
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Old 08-13-2002, 09:06 AM   #3
CTKAG
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Is there a difference in design between the Cusco lower brace and the STi lower arm brace? I'm sure it's much cheaper than the STi.
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Old 08-13-2002, 11:19 AM   #4
Ginseng
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Sorry Garface,

I do not have a picture of my install but if you do a search in the Suspension Forum, you'll find some pics of this as well as STi trailing links and lateral arm installs.

CTKAG,

From what I can tell from looking at the STi website, they only offer a single bar type brace, similar in function to the Cusco Type 1 brace. Check out http://www.subaru-sti.co.jp/parts/index.html. That is to say, it ties together only the subframe side rails. The Type 2 Cusco bar ties these two points as well as the inboard A-arm mounting points. I think this is the connection that provides the greatest benefit.

Wilkey
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Old 08-13-2002, 12:36 PM   #5
CTKAG
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Ah, OK, for some reason I had thought the type 1 was for the 'GC' and not a different type for the WRX. Thanks for the clarification.
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Old 08-14-2002, 02:23 PM   #6
Tex-WReX
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Default good info

From one cheapskate to another
Always a good write up. Been following your posts since the days of the HUD boost gauge.

John

ChemE
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Old 08-15-2002, 11:17 AM   #7
Ginseng
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Hey John,

Thanks for the comments As I drive this setup more, I'm finding that it does make the car understeer a bit on short sweepers and less than abrupt lane changes. It is clearly not dead-on neutral as before I installed the LAB. Since I'd like to keep the 34/32 F/R tire pressures (for general ride quality), it looks like my next add will be the Whiteline Rear Strut Tower Brace. I had planned on going all Cusco but Jim at Whiteline has been so helpful I thought it'd be the gentlemanly thing to do to send a little business his way. Stay tuned.

Wilkey
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Old 08-17-2002, 10:15 AM   #8
Dayf
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Ginseng,

Thanks for the post. This is one product I have been tempted to buy for a couple of months.
I noticed you have the transmission mount installed without the upgraded motor mounts. Did this help noticably with shifting at all? I was thinking of installing only the trans mount for now to avoid the NVH of the motor mounts.
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Old 08-17-2002, 11:34 AM   #9
Ginseng
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Dayf,

Here's a quote from a recent review in this forum that I think will answer the question. I am also a bit concerned about the additional NVH of the motor mounts. After all, this isn't a dedicated track car. I haul myself and my family around in it.

Quote:
The one thing you did not comment on was the ease of shifting. I found that the greatest benefit was that all the gears are exactly where you left them. The 2-3 shift now is rock solid even under full throttle, high RPM conditions. I did notice a bit more vibration on the shift knob and yes, the majority of the vibration is in the floor pan. This makes sense as the mount bolts to the subframe which bolts to the main frame rails.
This was from the thread http://forums.nasioc.com/forums/show...sti+and+tranny

Prior to the install, I often had trouble with a fast 2-3 shift especially under load. Other guys have found that it also makes the 4-5 shift feel closer. I feel this is one of the best "feel good" cheap and easy mods that can be done to significantly enhance the WRX fun quotient.

Hope this helps

Wilkey

Wilkey
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Old 08-23-2002, 09:18 PM   #10
DetroitWRX
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I don't notice any real differance I got it for the potholes in the fine Michigna roads. It feals more solid but don't know if it's for real or just my mind playing tricks on me. The steering is not faster. Does it strengthen the front end yes. Is it worth the money yes. Will you put it on and say wow no. My car is stock with Sumitumo HTR tires on it.
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Old 08-24-2002, 05:59 PM   #11
Ginseng
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DetroitWRX,

Your experience is exactly why anyone considering a mod should research it and do a ride along if possible. It just goes to show that much of tuning is so subjective and what's the cat's meow for one person will be warm milk for another.

Wilkey
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