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Old 11-05-2007, 07:30 PM   #1
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Default FM Butterfly brace?

Now that it's on sale, I am considering one. My only suspension mods so far are FM sway bars and lowering springs that I haven't even put on yet (before spring, obviously). I know I should just have lovefab weld up some reinforcements but this brace seems reasonable and looks so nice.

Depending on my wife's commissions, I plan on some fatcat mounts and illuminas to go with the set of Victorracers/Konig lightweights I just bought for more track days next summer. ( http://www.honda-tech.com/zerothread?id=2057117 ) The car did great last summer, completely stock, but I really want to go fast on the curves too next time. I overheard several people talk about how fast that miata was, and most of your cars are so much faster. Are you going to gingerman for wmhm, splittime?

RB braces, have it done custom, or FM Butterfly?
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Old 11-05-2007, 07:37 PM   #2
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I didn't notice a huge difference in the handling of the car with the BF brace but it did takes potholes and bumps a lot smoother, no longer jolting the car and rattling the doors and **** like that. It's a pain in the *** to have to remove it everytime you work on something above it though, and it does hang a bit lower than the frame rails so you'll drag it on speedbumps occasionally. Also it sorta just leaves your fuel lines jumbled together. I've yet to find a good way to fit them into the space between the frame rail and brace, but perhaps mine are just bent up from the PO's bottoming of the car.
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Old 11-05-2007, 08:04 PM   #3
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depending on how low your car is it defiently is more vulnerable to hitting speed bumps and other random stuff in the road. Just keep that in mind.
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Old 11-05-2007, 08:09 PM   #4
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Was it worth it for you? Does the car feel significantly more solid and less flimsy? I really miss that about my FD rx7.
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Old 11-05-2007, 08:11 PM   #5
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I am lowering it about 1.5 inches. Slammed miatas look great but my wife won't have it. Thats also why I still have ac.
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Old 11-05-2007, 08:26 PM   #6
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How about the brace on this site: http://www.racinglifestyle.com/.

Anyone tested it? It's cheaper than FM's butterfly
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Old 11-05-2007, 08:39 PM   #7
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If anyone is interested, I have a friend that has one(FM Butterfly) used. It is in good shape. I will contact him to see what he wants to sell it for and handle the sale for him in the "For Sale" section.
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Old 11-05-2007, 08:54 PM   #8
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Quote:
Originally Posted by olderguy View Post
If anyone is interested, I have a friend that has one(FM Butterfly) used. It is in good shape. I will contact him to see what he wants to sell it for and handle the sale for him in the "For Sale" section.
I'm interested.
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Old 11-05-2007, 10:04 PM   #9
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Quote:
Originally Posted by olderguy View Post
If anyone is interested, I have a friend that has one(FM Butterfly) used. It is in good shape. I will contact him to see what he wants to sell it for and handle the sale for him in the "For Sale" section.
If a decent price, I'm interested.
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Old 11-05-2007, 10:12 PM   #10
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You guys might want to check out seam welding. I'm planning on stitching the area by the door sills this winter.
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Old 11-05-2007, 10:54 PM   #11
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Quote:
Originally Posted by Ben View Post
You guys might want to check out seam welding. I'm planning on stitching the area by the door sills this winter.
Sorry for the question Ben but; seam welding? would you mind providing some clarification?

I guess this time is a double whammy for me: first the language (sorry not my native one) and second, is there someone who's done that and would you happen to have a pic?

I'm old and the rattles are driving me crazy!
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Old 11-05-2007, 11:14 PM   #12
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This guy gets carried away, but here ya go
http://www.flickr.com/photos/[email protected]/

Just stitching up the door sill areas is reported to make a huge difference in stiffness.
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Old 11-05-2007, 11:19 PM   #13
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The seem welding post is in here somewhere, I need to look for it again too. What is a good price for a used brace? Anyone else try one on an early car?
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Old 11-05-2007, 11:25 PM   #14
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Quote:
Originally Posted by Ben View Post
This guy gets carried away, but here ya go
http://www.flickr.com/photos/[email protected]/

Just stitching up the door sill areas is reported to make a huge difference in stiffness.
Thanks. My car is going to the paint shop tomorrow so I'll take them that pic. I think doing that with the doors could be a good solution.

Sorry but I had to ask
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Old 11-05-2007, 11:28 PM   #15
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Do you think the Butterfly brace is really worth $160 more than the two racing beat braces?
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Old 11-06-2007, 02:21 AM   #16
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I have the Hard Dog door bars. They stiffened the car more than the butterfly did. However, I still would keep them both.

The downside of the door bars is that not many race seats fit.
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Old 11-06-2007, 03:55 PM   #17
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Thanks for the advice. I think I am going to go with the RB stuff. I have always liked them ever since I bought my first performance exhaust in 1993 anyways.

Hopefully, 8psi, hawk pads and ss lines, FM sways, RB braces, and 205 V700 can give a lowered 04 NSX with eagle F1s a run for his money. And its only like six months away. :(
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Old 11-06-2007, 04:03 PM   #18
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I think you're going to be disappointed about the RB braces in comparison to the FM frame rails/butterfly. While the RB braces may (and most likely will) help, the most pronounced area of chassis flexibility is torsion between the front section and rear sections of the cars, right through the passenger compartment. The RB braces aren't going to help there, but the FM braces will, as would seam/stitch welding the door sills.
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Old 11-06-2007, 07:51 PM   #19
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Old 11-06-2007, 10:24 PM   #20
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Quote:
Originally Posted by Atlanta93LE View Post
I think you're going to be disappointed about the RB braces in comparison to the FM frame rails/butterfly. While the RB braces may (and most likely will) help, the most pronounced area of chassis flexibility is torsion between the front section and rear sections of the cars, right through the passenger compartment. The RB braces aren't going to help there, but the FM braces will, as would seam/stitch welding the door sills.
My deciding factor was really the ground clearance. The roads are not great up here and the short dirt road to my house is very bad. The flex in the car doesn't really bother me too bad, but I would really enjoy more of a coupe like feel. But if it could feel like the FD rx7, I'll buy anything.
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