Bracing Recommendations?

Started by chrismscotland, October 21, 2018, 23:24

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Topdownman

Quote from: bobbe on February 14, 2022, 10:54Thanks. I'm getting "The topic or board you are looking for appears to be either missing or off limits to you" when I follow that link

You may need to get to 30 posts to have access to it but the link works for me.
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bobbe

Ah well then I will endeavour to post more!

Carolyn

@bobbe :

I do apologise.  Our brace would cost you £165 (which includes £10 donation to the club).

It is super rigid;

Here's a pic:

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Perry Byrnes Memorial Award 2016, 2018.  Love this club. 
https://www.mr2roc.org/forum/index.php?topic=63866.0

bobbe

That looks excellent, thanks! I will PM you

bobbe

Carolyn's brace fitted this afternoon.



I had it out for a quick test drive - it really sharpens up turn in and dials out that bit of understeer on the exit of corners. Looking forward to getting it out for a proper run tomorrow.

Thanks Carolyn!

Carolyn

Quote from: bobbe on February 18, 2022, 17:26Carolyn's brace fitted this afternoon.



I had it out for a quick test drive - it really sharpens up turn in and dials out that bit of understeer on the exit of corners. Looking forward to getting it out for a proper run tomorrow.

Thanks Carolyn!


You're very welcome.  It looks like you did a very nice job of cutting the plastic.
Perry Byrnes Memorial Award 2016, 2018.  Love this club. 
https://www.mr2roc.org/forum/index.php?topic=63866.0

bobbe

Easy enough with the jigsaw! I'll probably pick up some rubber edging trim to give it a nice neat look

A7DUO

is this the type of chassis brace bar worth fitting - make much difference for the weight disadvantage? anyone got experience of an earlier car before/after fitting one. Also what does the face-lift OEM version look like and how good is it when retrofitting to earlier cars compared to this after-market one do people think?
Matt (2001 Toyota MR-2) 2009 Toyota IQ, 2016 Caterham 420R, 2008 Mini Clubman CooperD

A7DUO

and I take it this is the stock facelift chassis brace version we are talking about (that is not on the pre 03 cars like mine?)
Matt (2001 Toyota MR-2) 2009 Toyota IQ, 2016 Caterham 420R, 2008 Mini Clubman CooperD

Gaz mr-s

Quote from: A7DUO on March 13, 2022, 22:28and I take it this is the stock facelift chassis brace version we are talking about (that is not on the pre 03 cars like mine?)

Yes....they can be got in decent condition, but they're not well-protected.

1979scotte

Quote from: A7DUO on March 13, 2022, 22:28and I take it this is the stock facelift chassis brace version we are talking about (that is not on the pre 03 cars like mine?)

There is an even later bigger stronger version fitted to the latest cars.
Mid and front bracing is well worthwhile rear not so much unless running stiff suspension.
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MrT

Quote from: A7DUO on March 13, 2022, 21:48is this the type of chassis brace bar worth fitting - make much difference for the weight disadvantage? anyone got experience of an earlier car before/after fitting one. Also what does the face-lift OEM version look like and how good is it when retrofitting to earlier cars compared to this after-market one do people think?

Megillian Motorsport used to make a similar brace that also bolted across the tunnel like a breast plate. That was truly an amazing improvement to the car, tightening the chassis together and stopping almost all the shake and rattle of pot holes, let alone the significant improvement of stiffness to the chassis but still allowing some twisting torsional flex for undulating road conditions.
The comfort and improvements in the cockpit were far more noticeable for daily use than the chassis stiffening but push hard on back roads and you suddenly realised how much work that brace is doing. I believe it's the only design that combined the breast plate and bracing completely.

This design ties the rear tunnel mounts and triangulated the chassis rails so likely similar improvement and negligible difference for road use. I'd recommend either type of mid brace, and definitely include a front brace, either the facelift OEM or something a little stronger like Snelbaard's FMB. Again Megillian Motorsport also made these and a rare few occasions made a combined front and mid brace. I foolishly sold one a few years back and regret it. I should have replaced my face lift front brace with the full brace from Megillian...
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tatieu

A new brand in France for the braces is Roadney Racing : https://roadneyracing.fr/fr/

It's a very good product, I love it !

Beachbum957

A breastplate like Snelbaard's works very well as it boxes the center tunnel into a torque tube, which really improves torsional rigidity. Where you fell this mostly is on rough and undulating roads that try to twist the chassis.  Most of the other mid braces tie the side rails, but don't fully box the center tunnel.

His is a copy of the original made by Corky's which we have been running for years on 2 different MR2's.  The effect is very noticeable even with stock suspension.  It is lightweight and easy to install. 

We have a 2002 with lots of bracing and most of it only shows an effect with stiffer than stock suspension that puts more loads into the chassis.  Oddly enough, the 3 braces that had the most noticeable impact were the breastplate, the rollbar, which was added for rigidity, not roll over protection, and a steering rack brace from Snelbaard that is a copy of a Tom's brace.

Petrus

Quote from: Beachbum957 on July 12, 2022, 11:44A breastplate like Snelbaard's works very well as it boxes the center tunnel into a torque tube, which really improves torsional rigidity.

Agreed.

My PFL also notably improved with the TRD rear lower arm braces and Boris´s lower front brace. It markedly improved the feel. I was especially surprised by the effect of the two simple rear bars. I can feel múch better what the rear is doing.

For the rest I have Dev´s door spacers and the replica TRD front strut brace.

Ah and I would like to point out that an engine flopping about in engine room is not adding to a reassuring feel: It is a lót of weight moving about! Anyone feeling the need to bolt on bracing should imo also fill the motor mounts and add the head steady.

Carolyn

Herewith a picture of the ultimate mid brace (though I say it myself).  It ties the corners and middle together in a much more rigid structure than any other.  Unfortunately, we won't be making any more - but the jig is still here if someone wants it.

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Perry Byrnes Memorial Award 2016, 2018.  Love this club. 
https://www.mr2roc.org/forum/index.php?topic=63866.0

Joesson

Quote from: Carolyn on July 12, 2022, 12:07Herewith a picture of the ultimate mid brace (though I say it myself).  It ties the corners and middle together in a much more rigid structure than any other.  Unfortunately, we won't be making any more - but the jig is still here if someone wants it.

You cannot view this attachment.

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