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Torsion Bars #2579026
11/16/18 02:47 AM
11/16/18 02:47 AM
Joined: Sep 2018
Posts: 248
NC
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Nick Stevanovski Offline OP
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Nick Stevanovski  Offline OP
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Joined: Sep 2018
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NC
When it comes to torsion bars and drag racing, can they be too stiff? I know if they are stiff they will affect weight transfer, but when I say too stiff I mean is it possible for them to break under a hard launch? I plan on getting the .96 bars (daily driver that will see the strip), but after reading a few forums I am now wondering if this could cause any problems.

Re: Torsion Bars [Re: Nick Stevanovski] #2579058
11/16/18 08:01 AM
11/16/18 08:01 AM
Joined: Nov 2004
Posts: 24,693
Texas
GoodysGotaCuda Offline
5.7L Hemi, 6spd
GoodysGotaCuda  Offline
5.7L Hemi, 6spd

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Posts: 24,693
Texas
You're doing something really special if you can break torsion bars, leaf springs, or coil springs.

0.96" bars are somewhat on the smaller side compared to what many cars within this forum run. Most are >1" for handling performance.


1972 Barracuda - 5.7L Hemi, T56 Magnum 6spd - https://www.facebook.com/GoodysGotaHemi
1976 Dodge Warlock - "Her Truck" - 360/727 2wd
2016 Subaru WRX - E30 Tune ~320whp
[img]https://i.imgur.com/v9yezP9.jpg[/img]
Re: Torsion Bars [Re: GoodysGotaCuda] #2579081
11/16/18 11:42 AM
11/16/18 11:42 AM
Joined: Sep 2018
Posts: 248
NC
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Nick Stevanovski Offline OP
#1 Thread Starter
Nick Stevanovski  Offline OP
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Joined: Sep 2018
Posts: 248
NC
Originally Posted By GoodysGotaCuda
You're doing something really special if you can break torsion bars, leaf springs, or coil springs.

0.96" bars are somewhat on the smaller side compared to what many cars within this forum run. Most are >1" for handling performance.

Ok, thank you, I was just worried that under a hard launch if they are too stiff I could end up screwing something up.

Re: Torsion Bars [Re: Nick Stevanovski] #2579089
11/16/18 12:10 PM
11/16/18 12:10 PM
Joined: Sep 2007
Posts: 14,889
up yours
Supercuda Offline
About to go away
Supercuda  Offline
About to go away

Joined: Sep 2007
Posts: 14,889
up yours
Generally, drag racers go the opposite direction for torsion bars than we do in this forum. This forum is for handling, drag racing is not about handling so the goals are somewhat mutually exclusive.

Skinny front tires, no sway bars, /6 torsion bars and 90/10 shocks are the norm for low buck drag racing front suspension. No one in this forum is going to suggest that is even in the same county as a good package for handling.


They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.
Re: Torsion Bars [Re: Nick Stevanovski] #2579118
11/16/18 01:09 PM
11/16/18 01:09 PM
Joined: Nov 2004
Posts: 24,693
Texas
GoodysGotaCuda Offline
5.7L Hemi, 6spd
GoodysGotaCuda  Offline
5.7L Hemi, 6spd

Joined: Nov 2004
Posts: 24,693
Texas
Originally Posted By Nick Stevanovski
Originally Posted By GoodysGotaCuda
You're doing something really special if you can break torsion bars, leaf springs, or coil springs.

0.96" bars are somewhat on the smaller side compared to what many cars within this forum run. Most are >1" for handling performance.

Ok, thank you, I was just worried that under a hard launch if t


hey are too stiff I could end up screwing something up.



Maybe if you stand the car on and off the rear bumper every gear shift, you might develop an issue some day. But it still won't be the torsion bar itself.


1972 Barracuda - 5.7L Hemi, T56 Magnum 6spd - https://www.facebook.com/GoodysGotaHemi
1976 Dodge Warlock - "Her Truck" - 360/727 2wd
2016 Subaru WRX - E30 Tune ~320whp
[img]https://i.imgur.com/v9yezP9.jpg[/img]
Re: Torsion Bars [Re: Nick Stevanovski] #2579136
11/16/18 01:37 PM
11/16/18 01:37 PM
Joined: Jan 2003
Posts: 4,979
Pikes Peak Country
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TC@HP2 Offline
master
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Pikes Peak Country
Originally Posted By Nick Stevanovski
Originally Posted By GoodysGotaCuda
You're doing something really special if you can break torsion bars, leaf springs, or coil springs.

0.96" bars are somewhat on the smaller side compared to what many cars within this forum run. Most are >1" for handling performance.

Ok, thank you, I was just worried that under a hard launch if they are too stiff I could end up screwing something up.


No. You would break other components in the suspension before you snap a t-bar, provided, the bars are in good, undamaged condition.

A side effect of a larger torsion bar with a street suspension set up in a drag race application is that it is very repeatable. The primary requirement of a bracket racing car ahead of speed and horsepower.

Re: Torsion Bars [Re: Nick Stevanovski] #2579293
11/16/18 07:53 PM
11/16/18 07:53 PM
Joined: Jan 2003
Posts: 25,644
Oregon
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AndyF Offline
Too Many Posts
AndyF  Offline
Too Many Posts
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Joined: Jan 2003
Posts: 25,644
Oregon
Nobody is going to break a big bar. The ones that break are the small bars. A heavy B body will almost break the race bars just sitting still. The tiny bars have to be twisted a lot just to support the weight of the car. A big bar only has to be twisted a small amount to support the same weight.

Big bars aren't used for drag racing since they kill the weight transfer and they put extra weight on the nose of the car. Small bars work great for drag racing but the high level of stress kills them fairly quickly.

Re: Torsion Bars [Re: GoodysGotaCuda] #2579301
11/16/18 08:35 PM
11/16/18 08:35 PM
Joined: Feb 2010
Posts: 15,988
Granite Bay CA
Frankenduster Offline
Moparts proctologist
Frankenduster  Offline
Moparts proctologist

Joined: Feb 2010
Posts: 15,988
Granite Bay CA
Originally Posted By GoodysGotaCuda
You're doing something really special if you can break torsion bars, leaf springs, or coil springs.

0.96" bars are somewhat on the smaller side compared to what many cars within this forum run. Most are >1" for handling performance.


I agree. I have the 1.15 bars in my car.

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