TRD Motion Control Beam - Page 8 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Tcoat · 11-16-2016, 05:02 PM

Quote:

Originally Posted by go_a_way1

Lol cuz I am not a full member of team lava anymore??

Close but it is the reason you are no longer Lava.

Doing that test with a carbon fiber hood, trunk lid and especially roof means that your car is not going to have the same flex as all stock body.

go_a_way1 · 11-16-2016, 05:05 PM

Quote:

Originally Posted by Tcoat

Close but it is the reason you are no longer Lava.

Doing that test with a carbon fiber hood, trunk lid and especially roof means that your car is not going to have the same flex as all stock body.

Not to mention my other bracing or coilovers

EAGLE5 · 11-16-2016, 05:15 PM

Quote:

Originally Posted by chaoskaze

I'm not sure about tire lift & stuff. But mine door stabilizer made the car less snappy when rear is in the middle of "regaining" traction while turning. That's all the difference I feel period.

But I guess being able to get on gas more early when I fuk up is kind of an improvement.

How good is your butt dyno?

Tokay444 · 11-16-2016, 05:32 PM

Quote:

Originally Posted by Captain Snooze

Can you point me in the direction of some articles that discuss this?

You'd like me to do your homework for you?

Tokay444 · 11-16-2016, 05:38 PM

Quote:

Originally Posted by venturaII

And the solution to those frame failures wasn't to make the frame MORE flexible...lol. All the E30, E36, E46, E82, E9x etc. frame issues are addressed with more bracing.

Ok - now I'm really done.

Giving the areas that were breaking MORE flexibility was likely more difficult that restricting their movement by adding the bracing to other areas.

venturaII · 11-16-2016, 05:44 PM

Oh my god...you can't be serious... I'm starting to smell troll.

Tcoat · 11-16-2016, 07:11 PM

Quote:

Originally Posted by Tokay444

Having raced AWD on-road 1/10 scale electric touring car for a very long time, high end chassis have provisions for these adjustments and tuning.

Quote:

Originally Posted by venturaII

Oh my god...you can't be serious... I'm starting to smell troll.

I don't know Ven. His credentials are impeccable.

wbradley · 11-16-2016, 08:00 PM

As a weight savings feature, buy them and don't bother installing.

venturaII · 11-16-2016, 08:04 PM

Quote:

Originally Posted by Tcoat

I don't know Ven. His credentials are impeccable.

LOL - I was tempted to bring that up, but decided not to...glad I wasn't the only one who was impressed. Clearly, weakening the chassis so that it flops around more is far more difficult than designing it to resist flex..

Tokay444 · 11-16-2016, 08:11 PM

No one said weakening anything. I said adding engineered and tunable flex points.
Rigidity=/=strength.

x808drifter · 11-16-2016, 09:09 PM

While not really the same at all, a case in point.

A year or so ago Red Bull's F1 team (I think it was RB) got in trouble for having a front wing that deflected at speed.

They designed it to flex a certain way so it reduced drag at high speed, but once the car/airflow slowed down it'd return to its normal high downforce shape.

And from what I've read, in some circumstances (very few) you can actually be too stiff.
Take with a grain of salt, but seems plausible.
Mainly at least to my understanding, it really only happens when you cant adjust the suspension to compensate for the extra stiffness. IE: have to use some sort of spec suspension.

http://www.hotrod.com/articles/chass...rigidity-flex/

Gunman · 11-16-2016, 10:08 PM

Very few times will you want the chassis to be softer, only once have I worked with a race car that needed braces removed. That was a NASCAR cup car, during the coil bind era, and when coil bound, the compliance had to come from someplace else, which is the chassis.

chaoskaze · 11-17-2016, 12:09 AM

Quote:

Originally Posted by jsimon7777

How good is your butt dyno?

hey feeling traction with my butt is not my specialty. Maybe tcoat can chip in some advice.

guybo · 11-17-2016, 05:28 AM

Quote:

$842.95

Whatever the hell these do, they are not worth this much.

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11-16-2016, 05:44 PM	#104
venturaII Only users lose drugs. Join Date: Nov 2014 Drives: All the time Location: Shrewsbury upon Worcestershire Posts: 1,819 Thanks: 874 Thanked 1,067 Times in 674 Posts Mentioned: 3 Post(s) Tagged: 2 Thread(s)	Oh my god...you can't be serious... I'm starting to smell troll.

11-16-2016, 08:11 PM	#108
Tokay444 Anti stance. Join Date: Feb 2016 Drives: 17 White 860. RCE Tarmac 2. RE-71RS Location: Not Canada Posts: 1,632 Thanks: 899 Thanked 961 Times in 549 Posts Mentioned: 10 Post(s) Tagged: 0 Thread(s)	No one said weakening anything. I said adding engineered and tunable flex points. Rigidity=/=strength.

11-16-2016, 09:09 PM	#109
x808drifter LMGTFY Join Date: Mar 2016 Drives: 13 FRS, 91 Miata Location: Lava Town, HI Posts: 2,776 Thanks: 5,561 Thanked 3,646 Times in 1,625 Posts Mentioned: 15 Post(s) Tagged: 0 Thread(s)	While not really the same at all, a case in point. A year or so ago Red Bull's F1 team (I think it was RB) got in trouble for having a front wing that deflected at speed. They designed it to flex a certain way so it reduced drag at high speed, but once the car/airflow slowed down it'd return to its normal high downforce shape. And from what I've read, in some circumstances (very few) you can actually be too stiff. Take with a grain of salt, but seems plausible. Mainly at least to my understanding, it really only happens when you cant adjust the suspension to compensate for the extra stiffness. IE: have to use some sort of spec suspension. http://www.hotrod.com/articles/chass...rigidity-flex/

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