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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Mon, Sep-17-2018, 05:36:11 PM   #21
stash1
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Default Re: Feeler: Group Buy Gosling Racing & Independent Designs Front and Rear Brace

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Originally Posted by M3 dude View Post
with rear bars especially, unless its a solid piece, they look good and tough; but how much load are they really taking up, over and above what the floor is taking by itself?
Not a knock against a rear x-brace (as I was considering one myself), but just a cautionary tale for the noobs... while they may provide a degree of RACP reinforcement for the rear subframe mounting points, they do nothing for the front mounting points. Sooo, I wouldn't feel comfortable just installing an x-brace by itself and calling it 'good'...you're still gonna need to install plates or something to address the front subframe mounting points as well.

EDIT: Something else to weigh (and wut's kinda keeping me from pulling the trigger) is that part of what makes the M3 so versatile is that you can fold the seats down and slide all kinds of crap forward (tires, jack, etc. for track rats)...an x-brace pretty much removes that option unless you wanna unbolt it and bolt it back together when you arrive at the track/to your destination-kind of a PITA.
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Last edited by stash1; Mon, Sep-17-2018 at 06:53:30 PM.
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Old Mon, Sep-17-2018, 06:41:16 PM   #22
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Default Re: Feeler: Group Buy Gosling Racing & Independent Designs Front and Rear Brace

Definitely interested in the rear brace!
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Old Mon, Sep-17-2018, 06:44:07 PM   #23
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Default Re: Feeler: Group Buy Gosling Racing & Independent Designs Front and Rear Brace

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Originally Posted by stash1 View Post
Not a knock against a rear x-brace (as I was considering one myself), but just a cautionary tale for the noobs... while they may provide a degree of RACP reinforcement for the rear subframe mounting points, they do nothing for the front mounting points. Sooo, I wouldn't feel comfortable just installing an x-brace by itself and calling it 'good'...you're still gonna need to install plates or something to address the front subframe mounting points as well.
Absolutely. A rear x-brace AND reinforcement plates, however, is a solid route to bulletproof the rear imho.
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Old Mon, Sep-17-2018, 08:13:03 PM   #24
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Default Re: Feeler: Group Buy Gosling Racing & Independent Designs Front and Rear Brace

Was looking into this and doing my own research. I have some questions/comments:

The rear brace mounting where the x brace and top bar are connected to the turret mount, looks horizontally adjustable. The CMP X brace is all welded and Mason is a non-adjustable bolt-on. Gosling being adjustable in an area where there is stress, would the bolts ever shift horizontally since friction is the only thing keeping it from moving?

For the struct tower brace, the advertised 2-piece design for "ease of installation, maximum adjustment and ease of servicing" sounds like a weakness according to Rogue Engineering's RACEBRACE. Would like to hear other folks comments.
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Old Mon, Sep-17-2018, 08:54:04 PM   #25
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Default Re: Feeler: Group Buy Gosling Racing & Independent Designs Front and Rear Brace

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Slotted holes where the front brace bolts to the shock towers seem like they’re limit how effective it is and cause rubbing in an area I wouldn’t want rubbing.

Same on the rear-- hard to see what that is actually going to be accomplishing with slots on the part that attaches to the towers.

Feels like these designs won't do much...

If you are really that worried about the slots reducing the effectiveness of the bar. You could always weld washers where it will lock the bolt into place on both sides. (I might go this route to make sure it doesn't move) I believe that GRID slotted it help ease the install on some customers cars that are not 100% squared as they are suppose to be. The brace once tighten down with all the components should be pretty stout and 100% effective as designed.

Quote:
Originally Posted by M3_Pilot View Post
Absolutely. A rear x-brace AND reinforcement plates, however, is a solid route to bulletproof the rear imho.
I am also planning to foam the rear cavities as well per BMW instructions

Quote:
Originally Posted by dothraki View Post
Was looking into this and doing my own research. I have some questions/comments:

The rear brace mounting where the x brace and top bar are connected to the turret mount, looks horizontally adjustable. The CMP X brace is all welded and Mason is a non-adjustable bolt-on. Gosling being adjustable in an area where there is stress, would the bolts ever shift horizontally since friction is the only thing keeping it from moving?

For the struct tower brace, the advertised 2-piece design for "ease of installation, maximum adjustment and ease of servicing" sounds like a weakness according to Rogue Engineering's RACEBRACE. Would like to hear other folks comments.
It will be more vertical stress and not horizontal. I am waiting for GRID/PSDesign with some answers to clarify your guys concerns and questions. I am install this on my 1000WHP/800+WTQ m3 so it will be tested for sure....

So, here's the list:

1. WALKD_U - 1 Front and Rear Brace
2. lore2486 - 1 Rear Brace
3. FANTASTICVOYAGE - 1 Rear Brace
4.
5.
6.
7.
8.
9.
10.
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Last edited by WALKD_U; Tue, Sep-18-2018 at 01:51:41 AM.
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Old Mon, Sep-17-2018, 11:49:01 PM   #26
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Default Re: Feeler: Group Buy Gosling Racing & Independent Designs Front and Rear Brace

im down for rear brace pending some technical answers to the questions in the thread.
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Old Tue, Sep-18-2018, 01:33:06 AM   #27
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Default Re: Feeler: Group Buy Gosling Racing & Independent Designs Front and Rear Brace

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Originally Posted by M3_Pilot View Post
Absolutely. A rear x-brace AND reinforcement plates, however, is a solid route to bulletproof the rear imho.
Ya, the x-brace ties together the rear shock towers and probably helps to effectively alleviate the stress on the rear subframe mounting points in a similar manner to a Vince bar type solution...just don't forget to weld some reinforcement plates in as well to provide support for the RACP.
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Old Tue, Sep-18-2018, 04:11:02 PM   #28
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Default Re: Feeler: Group Buy Gosling Racing & Independent Designs Front and Rear Brace

Just wanted to share. I purchased a set a while ago see attached photos. Not installed yet but will be once I get them powder coated tiag silver. Also purchased PSDesigns/GRID colab GTS style half cage. If anyone ordered from prismaticpowders.com before which option is the closest color code to Tiag silver? LMK.

I can take closer pictures just let me know what angle you want.

https://flic.kr/p/2a76j1w

https://flic.kr/p/2a76j1S
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Old Tue, Sep-18-2018, 04:36:31 PM   #29
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Default Re: Feeler: Group Buy Gosling Racing & Independent Designs Front and Rear Brace

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Originally Posted by WALKD_U View Post
If you are really that worried about the slots reducing the effectiveness of the bar. The brace once tighten down with all the components should be pretty stout and 100% effective as designed.
I don't agree. Friction caused by a tightened bolt is pretty insignificant compare to the forces twisting the chassis.

My guess is that it won't do much at all, as designed.
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Old Tue, Sep-18-2018, 08:00:54 PM   #30
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Default Re: Feeler: Group Buy Gosling Racing & Independent Designs Front and Rear Brace

Ahh, I just saw the posts about the slots. Looking forward to the technical response.
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Discussing Feeler: Group Buy Gosling Racing & Independent Designs Front and Rear Brace in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)