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Heavy Duty Torsion bars

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Heavy Duty Torsion bars
#1
kirks-auto Robert Kirk (RIP)
Davenport, IA, USA   USA
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The biggest complaint from day one against the MGC was its handling...pushing, understeer. Kirks-Auto is trying to put a stop to that with the introduction of true heavy duty torsion bars. The splines are hardened material grade similar to OE but F A T T E R 27MM vs 25.4 I have offered and stock 22.25.

Coupled with our exclusive Heavy Duty 7/8 to 1 inch front sway bar and 0.75 inch rear sway bar, the MGC understeering is finally something one can handle.


We are the exclusive supplier of either polyurethane for stock bars or nylatron sway bar end link bushings for the heavy duty front sway bar.


Regards,
Robert Kirk

kirkbrit@yahoo.com
E-mail PLEASE for quote/questions/orders

Business phone 563 323 1017

http://kirks-auto.com/
Moss distributor/UK importer
Beat or match most retail/delivered quote



Edited 1 time(s). Last edit at 2014-07-09 03:26 AM by kirks-auto.


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torsion bar.jpg    23.7 KB
torsion bar.jpg

ASB front 7-8 inch MGC.jpg    30.7 KB
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ASB front addenda.jpg    57.8 KB
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ASB 917 rear.jpg    46.6 KB
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ASB end link AHH5939P.jpg    4.5 KB
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ASB 1 inch and 0.875 ASB TMG30796.jpg    17.3 KB
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Re: Heavy Duty Torsion bars
#2
BAHAMIAN C Avatar
BAHAMIAN C Dave Burley
Roscommon, Up North Michigan, USA   USA
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Robert-

Am I understanding correctly? Stock bars were the 22.25mm, the 25.4mm are the "up-rated" bars (Doug Smith/MG Motorsports), and your 27mm are still "more up-rated"?

Are they on your site yet so I can compare prices between "Up-Rated" and "More Up-Rated? Do you have any feedback from someone who has run both?

Just doing my homework-

Dave

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Re: Heavy Duty Torsion bars
#3
romeo69 Avatar
romeo69 Stephen Curtis
, Berkshire, UK   GBR
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1967 MG MGC
What spec material ..that must be very close to the body at that size ..
In reply to # 2738127 by BAHAMIAN C Robert-

Am I understanding correctly? Stock bars were the 22.25mm, the 25.4mm are the "up-rated" bars (Doug Smith/MG Motorsports), and your 27mm are still "more up-rated"?

Are they on your site yet so I can compare prices between "Up-Rated" and "More Up-Rated? Do you have any feedback from someone who has run both?

Just doing my homework-

Dave

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Re: Heavy Duty Torsion bars
#4
chormy Avatar
chormy Gold Member Shaun Holmes
Norwich, Norfolk, UK   GBR
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1963 MG MGB MkI "3330 PE"
1964 MG MGB MkI
1967 MG MGB GT "BABE"
1967 MG MGC    & more
Robert

The uprated sway bar requires uprated mounts and body mods to stop them ripping the chassis apart esp the 1" , I would use solid bushes as well.

Fatter does not mean stiffer very much depends on how the material is chosen machined and treated. The area just after the splines is the area to watch for damage .


Member Services:
Holmes Racing www.holmesracing.co
MGC Racing , Alloy parts and uprated items for the C, Engine rebuilds to full race or EFI. Secondhand parts available. Facebook page "Holmes racing" www.holmesracing.co
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Re: Heavy Duty Torsion bars
#5
kirks-auto Robert Kirk (RIP)
Davenport, IA, USA   USA
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Thank you Shaun. I am not going this alone...working with engineers and experts in metal fabrication. Testing the OE materials and Dougs and doing my Rockwell diligently. I am certain you know more about racing MGCs than I ever will and these are intended just for that "extreme" driving and as a package the 3 items would benefit any "aggressive driver" on the streets and by ways. Happy to use my agent to keep costs down and ship you a pair...UK or Ivory Coast as you wish. smileys with beer


Regards,
Robert Kirk

kirkbrit@yahoo.com
E-mail PLEASE for quote/questions/orders

Business phone 563 323 1017

http://kirks-auto.com/
Moss distributor/UK importer
Beat or match most retail/delivered quote

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about 2 weeks and 4 days later...
Re: Heavy Duty Torsion bars
#6
v8fangio Avatar
v8fangio Steve Foldhazy
Sydney, New South Wales, Australia   AUS
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1934 MG N-Type Magnette
1954 MG TF
1968 MG MGC
1968 MG MGC GT    & more
Robert .Due to extra weight of new larger bar , would it be possible to make tubular sway bars as they're made for MGBs and Midgets.?MGCs are already too heavy to add more weight to front.

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Re: Heavy Duty Torsion bars
#7
kirks-auto Robert Kirk (RIP)
Davenport, IA, USA   USA
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Sway or torsion bar from hollow tube stock?


Regards,
Robert Kirk

kirkbrit@yahoo.com
E-mail PLEASE for quote/questions/orders

Business phone 563 323 1017

http://kirks-auto.com/
Moss distributor/UK importer
Beat or match most retail/delivered quote

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Re: Heavy Duty Torsion bars
#8
Swamperca Avatar
Swamperca Swamper Ca
Nevada City, Nor-Cal, USA   USA
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1970 MG MGB GT
1971 MG MGB "Rubee"
1974 MG MGB "Groovy B"
Apples to Oranges. Can't see how a tube torsion bar could be made, it would need to be very large diameter.

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Re: Heavy Duty Torsion bars
#9
twentyover Avatar
twentyover Greg Fast
Lives in SoCal, Moving back to ancestral homeland, the Pacific NW, USA   USA
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Robert- Sway bar, Steve references MGB and Midget, I think he's thinking you are referring to a sway bat.


Swamper- not as large as you might think. Torsional stiffness is an exponential function of diameter, doubling the diameter would make the bar 16 times as stiff. To achieve the same torsional stiffness as a 1" bar, a 1.25" diameter hollow bar would have an ID of about 1.09 "


As it is, the 25.4 bar is 70% stiffer than the 22.25; and the 27mm is another 28% stiffer than the 1" (and 2.15x as stiff as the 22.25mm)

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