Torque bar snapped!

[Wally]

Sad, but also very cool that your engine has such a power that it would break a torque bar!!

What engine did this?

Thanks for sharing

[SilverBullet]

Wally, I dont think its my engine which snapped the bar, but most likely my style of driving. I enter and exit coners at high speed till the tyres start screeming. I guess that plus very hard setting of the rear dampers could be also facts contributing to the failure!
Btw its a small engine 88x69 w110 44 heads stock carb, bas exhaust. .
But animal is being chained till next month. T4 103x80 schl.340 48x40, 48idfs,remmele's exhaust.

[Wally]

Originally Posted by SilverBullet

T4 103x80 schl.340 48x40, 48idfs,remmele's exhaust.

Now, you are talking

OTOH, its still very weird that the bar snapped. The load is supposedly along the axis of the bar. Breaking it that way is very very difficult. I would suspect a less than ideal installation.
Way more powerfull cars with way harder suspension have used these bars with drag race starts many times over without failure, so it is hard to believe its a design fault...
Welding the taps straigth towards the direction to which the bar attaches to is critical to avoid lateral stresses. The bar is not designed to take lateral forces.

Anyway, please, do show pics and specs of your future engine Sounds spectaculair!

Thanks,
Walter

[starmember]

i heard it before that the csp tourque bar snapt under a little stress for a long time. thats wy i didnt buy one.

[Richie]

Hello,

This brace was developed and used by a lot of German KaeferCup racers, so high cornerspeeds shouldn't be the reason for breaking.
I think the bar has been preloaded when the wheels were off the ground.
Another possibility could be that there has been some misalignment in the mounting of the bar, but my guess is preload.

Cheers,
Richard

[puma-Alex]

Just have to ask a dumb questione as im mounting mine soon : You meen preload as when in a driving situatione , or by having the car on stands with no weight on the frame during mounting etc .
Regards

Puma-alex

[Richie]

Hello,

I meant (too much) preload on the bar during installation. After putting the car on its wheels, the load on the bar is even more so this could be the reason for breaking. But, as said, it's my guess, I would mount it "loose" and turn the bars to a snug fit after putting the car on its wheels.

Cheers,
Richard

[Wally]

Originally Posted by Wally

Welding the taps straigth towards the direction to which the bar attaches to is critical to avoid lateral stresses. The bar is not designed to take lateral forces.

Walter

I won't tell you 'I told you so', but...I told you so haha

[SilverBullet]

May the force be with me.