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Chassis stiffening - which parts are good?

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Old 08-26-2009, 04:51 PM
  #81  
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Originally Posted by j_man
Those 100hp+ don't help in the middle of a corner.
And the 40lbs hurt your grip.
Then on a straight do you think a 20 lbs ladder brace would help your 100hp+ over car accelerate quicker?
yeah but for the .1 second you lose on that corner, you make up a full second on the next straight in a 200hp car. I'll take my bracing, thank you.
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Old 08-26-2009, 06:36 PM
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Originally Posted by cueball1
Those full cages in the CSP cars don't help stiffness at all either...
No cages in any CSP cars that I have seen around here.
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Old 08-26-2009, 06:58 PM
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I'm not a cone dodger. Didn't realize CSP was an autox class. I was thinking it must be like ITA, SSC, TTB, SM, PTE, and the miriad other road racing classes Miatas run in. Sorry to have shown my complete ignorance of parking lot time trials.

Of course in CSP about the only chassis stiffening allowed are strut bars. Since floppy is good I'm sure none of the top Miatas use strut bars as that would stiffen the car and add weight! (read sarcasm here...)

Last edited by cueball1; 08-26-2009 at 07:25 PM.
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Old 08-26-2009, 07:36 PM
  #84  
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Originally Posted by NA6C-Guy
yeah but for the .1 second you lose on that corner, you make up a full second on the next straight in a 200hp car. I'll take my bracing, thank you.
Sure, if it is a street car, bracing helps with rattles and is also clubroaster style bling It is all cool

But if you're racing vs someone with the same class rules, he'll have the same power as you and will be doing 0.1 second on you in corners. And often that much is the difference between winning and losing ...

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Old 08-26-2009, 07:41 PM
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Originally Posted by cueball1
I'm not a cone dodger. Didn't realize CSP was an autox class. I was thinking it must be like ITA, SSC, TTB, SM, PTE, and the miriad other road racing classes Miatas run in.
In those the roll cage is mandatory by the rules and the reason is to lower the chances of the driver dying. Just like seat belts and helmets are mandatory.
It has nothing to do with making a car faster or stiffer ...

Actually in the past at world level races (think world rally) I've heard about teams cheating with paper weight rollcages (just looking like real real cages, etc.) Of course much more people died back then too - in the Group B era ...


Originally Posted by cueball1
Of course in CSP about the only chassis stiffening allowed are strut bars. Since floppy is good I'm sure none of the top Miatas use strut bars as that would stiffen the car and add weight! (read sarcasm here...)
They remove the shock tower brace, the brace between the seat belt towers and all the bracing on the bottom of the the car.


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Old 08-26-2009, 09:54 PM
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please stop putting smiley faces in every damn post j man. Thank You And if you consider bracing to be "bling" then I dont know what your problem is. If a 2000lb NA miata at 200whp with every bit of factory bracing stripped, which isnt much on NAs, and no extra support went head to head with a 300whp NA miata at 2300lbs with its fair share of bracing to give it a firm car feel, both having "the stig" as a driver I bet you the heavier would win In autocross, roadraces, drag, whatever you name it. I think you havent felt the effects of racing a stable car after adding REAL support. And im not talking "strut tower bars" here. I understand lightweight is very very important on a racecar but you need to remember so is balance

Last edited by Sam Amporful; 08-26-2009 at 10:05 PM.
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Old 08-26-2009, 10:24 PM
  #87  
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Is there a reason the one that weighs 2300lbs has 100 more whp? Didn't know bracing added power too!!
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Old 08-26-2009, 10:29 PM
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With more power comes a need of bracing. It was mentioned somewhere earlier in the thread. Right now im just arguing how at times, bracing is needed not only to keep the driver safe, but to improve on the car as a whole. This guy somehow believes, or implied, that bracing is only for the street
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Old 08-26-2009, 10:31 PM
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Originally Posted by Sam Amporful
And if you consider bracing to be "bling" then I dont know what your problem is.
Yeah. And I have bracing in my Miata. I even have a ladder brace (one of the first Adrenaline prototypes, much before Flyin' Miata developed theirs).
And I consider all that bracing I have bling + NVH, because that's what it is.

Originally Posted by Sam Amporful
If a 2000lb NA miata at 200whp with every bit of factory bracing stripped, which isnt much on NAs, and no extra support went head to head with a 300whp NA miata at 2300lbs with its fair share of bracing to give it a firm car feel, both having "the stig" as a driver I bet you the heavier would win In autocross, roadraces, drag, whatever you name it.
And 2000 lb Miata with every piece of factory bracing stripped and 300 whp will beat them both.
I am not saying the extra power doesn't improve times. We were talking about the braces and lap times.
If you take a peek at SSM class nationally prepped turbo or supercharged high hp Miatas, you'll notice the same thing - all factory bracing is stripped just like the CSP cars.

Last edited by j_man; 08-26-2009 at 10:48 PM.
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Old 08-26-2009, 10:36 PM
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Originally Posted by FRT_Fun
Is there a reason the one that weighs 2300lbs has 100 more whp? Didn't know bracing added power too!!
I don't know, they might have a light breeze in the engine bay? Or maybe a turbo? What I was trying to say, outside of CSP and parking lot racing, a Miata with forced induction would be fine with an extra few pounds of bracing. Didn't realise we were on the CSP topic. Given the option of bracing or sans at 100mph, I would take the bracing as I would imagine most would as well. Of course in autox you never really get out of 2nd gear so it probably isn't a big issue at those low of speeds anyway.

Didn't know black painted tubing under the car (that is factory) was bling. I guess I can get the hoes even easier now.
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Old 08-26-2009, 10:50 PM
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Originally Posted by j_man
And 2000 lb Miata with every piece of factory bracing stripped and 300 whp will beat them both.
If it doesnt get constantly slower from a warped and twisted chassis. Im done. You seemed settled in your beliefs so there is no changing it
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Old 08-26-2009, 11:02 PM
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Originally Posted by Sam Amporful
If it doesnt get constantly slower from a warped and twisted chassis. Im done. You seemed settled in your beliefs so there is no changing it
Auto-X is a different story. Actually the flimsy chassis often keeps the tires on the ground better...
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Old 08-26-2009, 11:09 PM
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Originally Posted by superslow
Auto-X is a different story. Actually the flimsy chassis often keeps the tires on the ground better...
hmm, I thought thats what shocks, springs, and slicks did. I hope thats a joke

Last edited by Sam Amporful; 08-27-2009 at 10:16 AM.
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Old 08-27-2009, 08:54 AM
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springs are heavy. I just run inverted shocks.
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Old 08-27-2009, 10:01 AM
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Originally Posted by Braineack
springs are heavy. I just run inverted shocks.
Thread drift.

I just replaced the shocks on my 05 Dodge Quad Cab 4x4. Got everything out to do the job - impact wrench, spring compressor, etc.

Imagine my surprise when I pulled off the front wheel and all that is in there is a shock - no spring.

All that the truck runs is a shock and a 1 1/2" sway bar. No coil springs at all. I guess it just caught me off guard. That said, the shock job was very painless.
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Old 08-27-2009, 10:06 AM
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Trucks have left springs that act as springs.
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Old 08-27-2009, 10:09 AM
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Originally Posted by Stein
Thread drift.

I just replaced the shocks on my 05 Dodge Quad Cab 4x4. Got everything out to do the job - impact wrench, spring compressor, etc.

Imagine my surprise when I pulled off the front wheel and all that is in there is a shock - no spring.

All that the truck runs is a shock and a 1 1/2" sway bar. No coil springs at all. I guess it just caught me off guard. That said, the shock job was very painless.
Torsion bar suspension - Wikipedia, the free encyclopedia
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Old 08-27-2009, 10:41 AM
  #98  
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dont go karts have flex built in for suspension?
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Old 08-27-2009, 10:55 AM
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Originally Posted by y8s
dont go karts have flex built in for suspension?
That's because they don't have suspension.
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Old 08-27-2009, 10:57 AM
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I know how it works, I just didn't know that it had it. I've never pulled a wheel off of it since I bought it.
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