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Old 3 Mar 2018, 21:01 (Ref:3805524)   #1
GTRMagic
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CoG Parity...

Story Here

The complaints about the ZB are loud and getting louder, however they conveniently ignore that the body panels for those cars weren’t able to be pressed locally in special runs, and needed to be fabricated completely to suit the unique sizing of the CotF base platform.

ZB is a brand new chassis shape, Ford’s FG/X had its origins back in 2013, as did the Nissan Altima.

It shouldn’t be a surprise to anyone that design and construction techniques have moved along in 5 or so years....

Can you actually design a test to measure CoG across multiple chassis?

There is a certain team principal that seems to be building a strong reputation for whinginging, instead of just getting on with the job...
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Old 3 Mar 2018, 21:04 (Ref:3805527)   #2
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Originally Posted by GTRMagic View Post
Story Here

The complaints about the ZB are loud and getting louder, however they conveniently ignore that the body panels for those cars weren’t able to be pressed locally in special runs, and needed to be fabricated completely to suit the unique sizing of the CotF base platform.

ZB is a brand new chassis shape, Ford’s FG/X had its origins back in 2013, as did the Nissan Altima.

It shouldn’t be a surprise to anyone that design and construction techniques have moved along in 5 or so years....

Can you actually design a test to measure CoG across multiple chassis?

There is a certain team principal that seems to be building a strong reputation for whinginging, instead of just getting on with the job...
you mean the guy in the first two pits, sounds like he is getting on with the job.

I would have suggested the guy in pits 3-5 but he is already known for whinging

Would changing the roof on the ford and nissan from steel to composite move ten kgs from high up to down low, thats massive in COG terms of the car

Last edited by peckstar; 3 Mar 2018 at 21:10.
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Old 3 Mar 2018, 21:19 (Ref:3805532)   #3
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Instead of going to the trouble & expense of designing replacement panels for a long superseded car, and effectively junking the stockpile of existing spares, would the logical focus not be on designing the new chassis shape equipped with a Ford engine, instead of playing with Grandpa’s Axe?

The fella in charge of garages 3-5 is leaps and bounds ahead of all the others in the use of manipulating the narrative. Yet can equally stand up in front of whatever camera shows up and say hand on heart when his squad doesn’t do a good enough job.

ZB has been coming for 2 years now. FG/X has not been updated for at least that long... is that Holden’s fault, to build a modern mousetrap?

Smoke & mirrors much?
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Old 3 Mar 2018, 21:21 (Ref:3805536)   #4
Umai Naa
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Originally Posted by GTRMagic View Post
Story Here

The complaints about the ZB are loud and getting louder, however they conveniently ignore that the body panels for those cars weren’t able to be pressed locally in special runs, and needed to be fabricated completely to suit the unique sizing of the CotF base platform.

ZB is a brand new chassis shape, Ford’s FG/X had its origins back in 2013, as did the Nissan Altima.

It shouldn’t be a surprise to anyone that design and construction techniques have moved along in 5 or so years....

Can you actually design a test to measure CoG across multiple chassis?

There is a certain team principal that seems to be building a strong reputation for whinginging, instead of just getting on with the job...
Correct. There's no steel roof panel from the OEM for the ZB. The road car has two glass panels.

Maybe the Nissan and Ford teams should be more proactive in their homologation?

Seems to be a common theme, that they've not had any foresight in the development of their cars. They just don't lobby the catagory management hard enough to get things through, that could be seemingly benefical down the track.
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Old 3 Mar 2018, 21:26 (Ref:3805539)   #5
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Correct. There's no steel roof panel from the OEM for the ZB. The road car has two glass panels.

Maybe the Nissan and Ford teams should be more proactive in their homologation?

Seems to be a common theme, that they've not had any foresight in the development of their cars. They just don't lobby the catagory management hard enough to get things through, that could be seemingly benefical down the track.
you didnt read the article did you?
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Old 3 Mar 2018, 21:27 (Ref:3805541)   #6
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you didnt read the article did you?
You didn't read the numerous requests to stop engaging with me either.

So here's another.
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Old 3 Mar 2018, 21:44 (Ref:3805546)   #7
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Can you actually design a test to measure CoG across multiple chassis?
I would think that if you suspended each chassis on something like a rotisserie, spun it at a good rate of radians/sec, measured mass loadings at the axes of the rotisserie, sorta like balancing a tyre/wheel, you'd be in a position to make some sort of discovery about where the relative centre of mass sits within the chassis... and it'd be fun to watch... especially if one got loose mid-spin hehehe

Answer in ten words or less: yeah, but it'd be unfeasibly complicated and unwieldy. So, no.
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Old 3 Mar 2018, 21:57 (Ref:3805554)   #8
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You didn't read the numerous requests to stop engaging with me either.

So here's another.
Not going to happen to you stop belittling me in snide posts

Read the article

it explains the issue towards the bottom. Its a significant change in how we do things which will add significant cost over what we have been doing
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Old 3 Mar 2018, 22:21 (Ref:3805565)   #9
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Can you actually design a test to measure CoG across multiple chassis?
Yes, very easily. Just get the CAD files for the three sets of bodywork including the support panels and it will spit out the centre of gravity at a single click.

888 have IMO been extremely creative in their interpretation of the rules. Choosing, for example, a composite rear firewall even though sheetmetal is cheap and easily fabricated into the required shape.....

Ford and Nissan runners have every right to be aggrieved at the Commodore having a Centre of gravity advantage in a supposed parity car of the future platform, where the Commodore, Altima and Falcon are meant to have equal chances.
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Old 3 Mar 2018, 22:26 (Ref:3805566)   #10
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Seems to be a common theme, that they've not had any foresight in the development of their cars. They just don't lobby the catagory management hard enough to get things through, that could be seemingly benefical down the track.
The problem is, the Commodore is a realignment of COTF principles away from the roll cage being dressed with production bodywork support panels to hold on the (yes) composite panels, to the bodywork support panels being bespoke lightweight items more like a sports sedan.

The Falcon and Altima runners, having dutifully homologated their bodywork in good faith, could not have anticipated the change in regulations at the time of homologation.

Neither can spare the expense to needlessly update their bodywork on their cars that aren't on sale anymore and which ARE supposed to be guaranteed to remain at parity under COTF principles...
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Old 3 Mar 2018, 22:27 (Ref:3805567)   #11
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Yes, very easily. Just get the CAD files for the three sets of bodywork including the support panels and it will spit out the centre of gravity at a single click.
easily calculated, less easily measured

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Choosing, for example, a composite rear firewall even though sheetmetal is cheap and easily fabricated into the required shape.....
I wonder if that (the material of construction) compromises the actual intent of a firewall, i.e. to seal/protect the cabin space from the ingress of fire?
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Old 3 Mar 2018, 22:28 (Ref:3805568)   #12
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Instead of going to the trouble & expense of designing replacement panels for a long superseded car, and effectively junking the stockpile of existing spares, would the logical focus not be on designing the new chassis shape equipped with a Ford engine, instead of playing with Grandpa’s Axe?
Ford are not in Supercars, why should Tickford and DJR Team Penske incur the expense?

They were guaranteed that all cars homologated under COTF would have parity, and their Falcon FGX would remain with the same chance to win as everyone else until 2020 when it's homologation will expire.
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Old 3 Mar 2018, 22:38 (Ref:3805572)   #13
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Ford are not in Supercars, why should Tickford and DJR Team Penske incur the expense?

They were guaranteed that all cars homologated under COTF would have parity, and their Falcon FGX would remain with the same chance to win as everyone else until 2020 when it's homologation will expire.
Meantime that whinging fella’s ‘disadvantaged’ car went quickest in qualifying just now...
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Old 3 Mar 2018, 22:44 (Ref:3805573)   #14
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It happened in the Volvo days, they had to shift ballast around to correct a perceived advantage due to engine weight.
http://www.news.com.au/sport/motor-s...0ea09ee1682d50
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Old 3 Mar 2018, 22:48 (Ref:3805575)   #15
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DJRTP really taking the **** now. Moaning about centre of gravity inequality to the ZB, after 1 race at a track where a Commodore has won 18 of the 19 starts.

Ryan Story cannot be serious.

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