Tubular top wishbones

Tubular top wishbones

Author
Discussion

Pupp

Original Poster:

12,206 posts

271 months

Friday 13th November 2015
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Well, tubular wishbones generally... currently available from?

bobfather

11,171 posts

254 months

Friday 13th November 2015
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Tubular wishbones are generally considered to be a potential chassis destroyer. Most accidents involve wheel impacts where it becomes an advantage to have sacrificial wishbones as these deform to absorb the impact without causing damage to the chassis. I don't think TVR manufactured them with this in mind but it is a distinct advantage to avoid damage to the chassis. It's a definite difference between repairable and write-off accident damage

Geoff38

789 posts

245 months

Friday 13th November 2015
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Grantura engineering

phazed

21,844 posts

203 months

Friday 13th November 2015
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Geoff38 said:
Grantura engineering
That's where mine came from.

As for the strength of the tubular wishbones and the fact that they can damage the chassis.

I would rather have the stronger tubular wishbones and potentially damage the lugs that are welded to the chassis.

The lugs are fairly lightweight and if they were bent or damaged in any way could easily be repaired in situ.

I can't help but feel that the standard wishbones are extremely lightweight not just in weight itself but in their overall strength.

My feelings are that they are fine for road use but when mixed with sticky wider track tyres and far more cornering forces, the tubular wishbones must be a safer bet.

ClassiChimi

12,424 posts

148 months

Friday 13th November 2015
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^^^^^^ Can't argue with any of that.
Standard wishbones new and in fine fettle are strong enough but rusty and holes through them they most certainly ain't!
I can't help but think the tubular ones would aide handling a tad, would take vibration over bumps better too, but that's a guess,

Alexdaredevils

5,697 posts

178 months

Friday 13th November 2015
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bobfather said:
Tubular wishbones are generally considered to be a potential chassis destroyer. Most accidents involve wheel impacts where it becomes an advantage to have sacrificial wishbones as these deform to absorb the impact without causing damage to the chassis. I don't think TVR manufactured them with this in mind but it is a distinct advantage to avoid damage to the chassis. It's a definite difference between repairable and write-off accident damage
This ^^

I work in accident repair and see this all day long, you need a weak point somewhere.

phazed

21,844 posts

203 months

Friday 13th November 2015
quotequote all
Alexdaredevils said:
This ^^

I work in accident repair and see this all day long, you need a weak point somewhere.
tongue out

Sardonicus

18,928 posts

220 months

Friday 13th November 2015
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Still reckon the tube WB's will fold causing no chassis damage, the chassis ears are short well welded and are strong IMO and you won't yield those chassis tubes when you have weaker tubed WB's

Pupp

Original Poster:

12,206 posts

271 months

Friday 13th November 2015
quotequote all
Ok, thanks - I know the arguments for and against, and am happy enough the corrosion and rigidity benefits outweigh the crash damage potential

NTEL

5,051 posts

239 months

Friday 13th November 2015
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Tuscan race cars have tubular wishbones and we crash those on a regular basis LOL....... either the bone folds or the mountings bend. Never chassis damage.

Geoff38

789 posts

245 months

Friday 13th November 2015
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Grantura's standard tube wishbones ( not Peter's bent ones ) wink

NTEL

5,051 posts

239 months

Friday 13th November 2015
quotequote all
Geoff38 said:
Grantura's standard tube wishbones ( not Peter's bent ones ) wink
That welding is ste! Why do people think it acceptable?

phazed

21,844 posts

203 months

Saturday 14th November 2015
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Richard 858

1,882 posts

134 months

Saturday 14th November 2015
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Geoff38 said:
Grantura's standard tube wishbones ( not Peter's bent ones ) wink
I suggest that is re-phrased to "curved ones" as the word "bent" suggests damaged ! smile

phazed

21,844 posts

203 months

Saturday 14th November 2015
quotequote all
Richard 858 said:
Geoff38 said:
Grantura's standard tube wishbones ( not Peter's bent ones ) wink
I suggest that is re-phrased to "curved ones" as the word "bent" suggests damaged ! smile
Or stolen!

Pupp

Original Poster:

12,206 posts

271 months

Saturday 14th November 2015
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Why use 4 letters when 6 will do? Textual equivalence to stainless over-braid? wink

Geoff38

789 posts

245 months

Saturday 14th November 2015
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This one is not bent , stolen or curved , it's fu.... Sorry Mum , damaged smile

Geoff38

789 posts

245 months

Saturday 14th November 2015
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The new TVR-parts website also has tubular wishbones listed but no pictures.

Hedgehopper

1,537 posts

243 months

Saturday 14th November 2015
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These SC Power up-rated folded steel wishbones might be an alternative. Interesting what they say about insurance in the paragraph above the Price List.

http://www.sc-power.co.uk/pages/sc-power-wishbones...

Nosh

982 posts

166 months

Sunday 15th November 2015
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This is what I found when undertaking my recent suspension refurb....



Needless to say I got new ones from a place in Nottingham I think.

Nosh