Torsional Rigidity
Discussion
Have you talked to the factory? Some research and info here: http://www.ultimav12.ca/
Adam,
Find out exactly how they do the test over in WA.
Do they allow you to test with the engine and box in?
Are you allowed to have the chassis paneled?
Do they require the measurement/torsion to be taken from the wheel hubs or can you just do it from the chassis?
there are various ways that they test, and all will produce different results. At the end of the day you are trying to achieve a figure to get past a registration hurdle. many different things can be done to achieve this.
Kind Regards Ryan
edited to add some links
http://www.lescanfield.info/ApplicationTobuild.htm...
http://www.locost.ozcarnut.com/html/chassis_photos...
Find out exactly how they do the test over in WA.
Do they allow you to test with the engine and box in?
Are you allowed to have the chassis paneled?
Do they require the measurement/torsion to be taken from the wheel hubs or can you just do it from the chassis?
there are various ways that they test, and all will produce different results. At the end of the day you are trying to achieve a figure to get past a registration hurdle. many different things can be done to achieve this.
Kind Regards Ryan
edited to add some links
http://www.lescanfield.info/ApplicationTobuild.htm...
http://www.locost.ozcarnut.com/html/chassis_photos...
Edited by ezakimak on Tuesday 21st July 11:04
Edited by ezakimak on Tuesday 21st July 11:09
Thanks for the input.
I have enquired with the factory, but they couldn't help.
I have visited the V12 installation site (very nice), but I wasn't conviced of the accuracy of the measurements taken ie was the test bed benchmarked against a known chassis to guage accuracy.
I did find the relatively minor modifications interesting and will probably employ some of them in the build depending on the outcome of the test.
A test cost around $1000AUD, so I don't want to fail too often...
I will post eventual results for future reference.
Cheers
Adam
I have enquired with the factory, but they couldn't help.
I have visited the V12 installation site (very nice), but I wasn't conviced of the accuracy of the measurements taken ie was the test bed benchmarked against a known chassis to guage accuracy.
I did find the relatively minor modifications interesting and will probably employ some of them in the build depending on the outcome of the test.
A test cost around $1000AUD, so I don't want to fail too often...
I will post eventual results for future reference.
Cheers
Adam
Adam, i joined a local club to me, http://www.vic-clubmans.com/.
There are a few diferent cars being built, not just clubman’s. it has been interesting to see/watch how the rego process goes for other members. Not to mention you get lots of good links to local suppliers and companies that can do things for you. They may have different events as well. Our club has had tech nites at some of the motorsport suppliers (meridian motorsport, Hoppers stopers, Head 2 head) just to name a few. All have been invaluable.
I have heard good things about this group and they are local to you,
http://www.sportscarbuilderswa.org/
Ryan
There are a few diferent cars being built, not just clubman’s. it has been interesting to see/watch how the rego process goes for other members. Not to mention you get lots of good links to local suppliers and companies that can do things for you. They may have different events as well. Our club has had tech nites at some of the motorsport suppliers (meridian motorsport, Hoppers stopers, Head 2 head) just to name a few. All have been invaluable.
I have heard good things about this group and they are local to you,
http://www.sportscarbuilderswa.org/
Ryan
andygtt said:
no, they were apparently very negative about the work he did.
Jay told me the same thing. The factory didn't approve of all the reengineering he did. It is understandable, if I bought myself a mercedes or a BMW and I stripped it down and started adding bits and pieces everywhere and told them "you're doing it wrong, my way is better", I'm guessing they would have a similar reaction even if I was right.I have heard good things about this group and they are local to you,
http://www.sportscarbuilderswa.org/
Ryan
[/quote]
Thanks for your info Ryan, the link you supplied seems to specislize in Clubmans, but I know of a number of local clubs that are into Cobra replicas etc, perhaps both
I do not intend to stray far from the tried and tested product from the factory, especially on my first build project.
I often read the posts here and I'm in awe of the ability and knowledge of some of the builders. Guys like Jay, Clive, Wayne and others are truly exceptional engineers.
I will probably use a few of Jay's ideas combined with advice from the local knowledge pool before she goes on a test bed.
In my humble opinion, I would have thought the factory would embrace the relatively minor alterations as described by Jay to improve the chassis stiffness, perhaps even take them further and thus improve the handling ability of the package.
It should be noted here that I have no personal experience in this area whatsoever !!
Cheers
Adam
http://www.sportscarbuilderswa.org/
Ryan
[/quote]
Thanks for your info Ryan, the link you supplied seems to specislize in Clubmans, but I know of a number of local clubs that are into Cobra replicas etc, perhaps both
I do not intend to stray far from the tried and tested product from the factory, especially on my first build project.
I often read the posts here and I'm in awe of the ability and knowledge of some of the builders. Guys like Jay, Clive, Wayne and others are truly exceptional engineers.
I will probably use a few of Jay's ideas combined with advice from the local knowledge pool before she goes on a test bed.
In my humble opinion, I would have thought the factory would embrace the relatively minor alterations as described by Jay to improve the chassis stiffness, perhaps even take them further and thus improve the handling ability of the package.
It should be noted here that I have no personal experience in this area whatsoever !!
Cheers
Adam
bluesatin said:
The ultima is designed for a SBC V8 and not a V12. To get the V12 to fit you have to change/remove a lot of the chassis!
Thats not right, the bmw V12 that Jay fitted is an easy fit with no chasis mods at all, of cause you might want new engine mounts but you could use the existing ones.... Jay is not the only person thats done it.Its an expensive engine to get 500bhp from tho... well unless you turbocharge it of cause lol
Edited by andygtt on Thursday 23 July 19:44
deadscoob said:
Didn't his performance tests show negligible or negative improvements?
his tests showed the car was something like 3 times as stiff after the mods... and I know people have challenged his starting figures but these have been confirmed as pretty acurate by 2 other independant tests that i know of.Lets not loose track tho... for a 500bhp road car the chasis meets the requirements more than adequatelly, but that wasnt what was asked.
I meant his performance tests, not stiffness - braking, handling etc which were affected by altered compnonents which were quite different from stock. Special shocks, rejigged wishbones, extra caster, special brakes and wheels etc. Significant changes which appeared to make little difference.
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