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Author Topic:   Question?
KSGerry
Dirt Freak

Total posts: 376
posted September 15, 2004 06:02 AM  
I haven't had an opportunity to study a NE Modified's chassis, suspension or driveline. Do rules mandate the use of an enclosed rear axle or can a live axle...similar to a midget, sprint or Silver Crown, be used instead?

I noticed several earlier posts making mention of rear suspension set-ups that appeared to be similar to a Late-Model Stock car and wondered if all torsion bar cars were used too. Granted, many newer midget, sprint and Silver Crown chassis designs now use a mixture of torsion bars blended with coil-overs or coil-over / sway bar set-ups. However, many older cars just used torsion bars and shock absorbers.

Thanks for the information!

Regards,
Gerry Dedonis

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KSGerry

cozmo
Dirt Forum Racer

Total posts: 99
posted September 15, 2004 08:08 AM  
You can use ether a closed or an open drive axle qc rear.

Most cars are set up with torsion bars in the rear and coil overs up front. They have a solid front axle like a sprint. The rear uses a three link set up with a tork arm with the front of it mounted to a slider on the floor under the driver. The panhard bars is mounted to the right side of the car. You can use a sway bar front or rear.

But there are a big verity of different set upís that can/used and have been tried like:
3 link torsion bar or coil over or both
4 link torsion bar or coil over or both
z link torsion bar or coil over or both, or using the torsion bar arms as the rear radius bars
a high torsion rack
long torsion rack
torsion rack in front of the rear axle
half leaf springs
and the list goes onÖ.

Also I do not consider my self an expert on the ne mods just what I have learned so far.

coz

KSGerry
Dirt Freak

Total posts: 376
posted September 15, 2004 08:40 AM  
Thanks for your reply, Coz.

I am most familiar with midget and sprint chassis with cross torsion bar suspension (4 corner) and the rear end kept centered with a Jacobs ladder. Instead of using a torque arm there is a tube that encloses the driveshaft from the front U-joint to a live axle quick-change rear end. The torque tube has a ball end that moves up and down with the travel of the rear end.
As mentioned in my earlier post there are variations in suspension besides all-torsion bar.

I've added this explanation for the benefit of someone new to open-wheel cars...
specifically midgets and sprints.

Thanks again for the information. I suppose I should do an internet search to find photos and diagrams to better understand the differences. There are discussions in my area in the midwest to add a class of modifieds similar to the northeastern cars. The GM metric chassis used for IMCA-style mods are getting in short supply. The racers would like to use something easier to set up and adjust too.

Regards,
Gerry Dedonis
Chapman, Kansas

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KSGerry

[This message has been edited by KSGerry (edited September 15, 2004).]

cozmo
Dirt Forum Racer

Total posts: 99
posted September 15, 2004 09:29 AM  
Gerry,

check out www.dirtmotorsports.com

look through the links there are links to chassi builders
coz

[This message has been edited by cozmo (edited September 15, 2004).]

KSGerry
Dirt Freak

Total posts: 376
posted September 15, 2004 09:59 AM  
quote:
Originally posted by cozmo:
Gerry,
check out www.dirtmotorsports.com

look through the links there are links to chassis builders
coz


Thanks for the reminder!
I used to have the DIRT site stored in my favorites until my computer failed a few months ago.

Gerry

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KSGerry

[This message has been edited by KSGerry (edited September 15, 2004).]

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