Can someome explain the chassis design of the new c8? Six pieces bolted to backbone?

[JB]

If anyone understands the six piece chassis sub assemblies bolt to the backbone chassis please give their understanding of this platform.

if Im understanding this chassis development and Im not sure I do...

it sounds like six pieces of the chassis are brought into BG and the bolted to the backbone central tunnel.

the tunnel itself precludes a manual transmission linkage etc yet delivers such great rigidity that the corvette engineers were able to utilize bolting process of the six other brought in to build the c8 platform.

it is just my assumption but the testing of this design will allow gm to inexpensively use a similar design with the battery of its ev lineup to be the structural backbone of their other new all ev vehicles coming by 2022....

i cant speak of the shaoe of the new ev battery pack yet somehow I feel the corvette c8 is the technological test bed for such a platform...

hence the under sixty grand base price. The corvette has always been the low volume test bed for volume series designs utilizing exciting new technology.

i believe the six piece and then central backbone platform will allow gm to vary wheelbase length through extension of the backbone portion of its future ev lineup and then add the six prefabbed to alter the size of the vehicle...

almost an erector set type construction allowimg for massive plants building varying size platforms In one location depemding on consumer preferences at any moment in time.

im totally giessing yet based off what we have heard so far with regards to the c8 s contribution to GM has allowed the c8:to be competively priced compared ti the more traditiomal front mid engine corvette c7....

i believemits the experimentation aspect of the new chassis design ...

c5 and c6 lead the way of hydrofirming steel side rails to deliver extremely high rigidity that also transferred to a degree innthe making of GM s very profitable truck line.

the c8 moves from one piece per side hydroformed steel frame rails for excellent rigidity of the c5 and c6 to a central backbone design with six added bolted on sub assemblies for the completion of the c8 chassis and a 10 percent increase in rigidity to the c7...

the c7 was a design unlike the c6 and c5:@;$ did in fact imorove in rogidity.

the value from a sports car perspective to have a very rogid chassis it
is it allows for orecise uet compliant suspension for both great performance and superior ride ..

the gm truck line up truck and other body on frame cuv sduring the c5 and c6 production did offer superior chassis rigidity to its competitors ..

i believe this time around the c8 leads a short run test execution before gm rolls out its upcoming onslaugh of 22 full ev s by 2022..

find the bugs before rolling out its most important advance.

interestingly enough tesla uses its battery pack pancake as a chassis rigidity member.

with GM s expertise in mass production as well as battery technology. I believe the six piece sub assemblies for the c8 in addition tomits use of the central backbone member that the c8 is the test bed for what gm hopes will give it bith superior rigity and ease of various size products in the upcoming ev segment inclusive of various size cuvs.

simplynalter the size ofmthemsix pieces and GM has a new sozed platformmto build upon...

very different than the way most unit body vehicles are built today....ie sedans and sedan based cuvs.

gm has for many years been a leader in chassis design. Although a totally different construction the cadillac ct6 when viewed internally was amazing lightweight and yet rigid.

i do believe the expertise in the cadillac ct6 was too focused to just producing the ct6 model...once realized its profit limitation on a single model ...this new corvette platform with a wide ranging capability of expamding models of various size delivers an interesting oath to GM s future profit struction in the era of supposed ev domaince.

i could be full of BS....im just shooting the breeze with you guys on some of the added value the c8 lends the corporationother than just c8 unit sales and per unit profitability..

what say you?

on track or full of it?

[ZORA 69]

JB, you seem to be very well verse to this Chassis design. I do believe I did read or heard somewhere, of course I am getting overwhelmed with all the information on the C8 that some sticks and some gets distorted in my mind, THAT THESE SIX PIECES were initially going to be shopped out to a Vendor to build for GM and that for some reason GM decided to do the manufacturing of these pieces in house. Whether or not they are built in Bowling Green, I do not know that either. I guess I am not much help here and maybe no help at all. But a great question. I will be looking forward to reading the responses you receive.

[Shepherd777]

the six largest castings that make up the main structure—castings that GM names the “Bedford Six” after the location where they’re built: Bedford, Indiana

https://jalopnik.com/heres-a-detaile...ssi-1836540969

[JB]

I could be totally wrong yet I believe this will be a precursor to chassis development as GM rolls out its new generation of ev platforms.

I believe part of the cost structure to design the c8 shares the development costs with the EV development team...

part of the way gm is able to offer such an amazing value on the c8 consumers..

i also believe cadillacs participation for the paint shop and other aspects of expanding bowling freen.

wouldnt it be fascinating if with more segmented markets included ev models if gm carried over chassis development from corvette to what could amount to relatively low volume ev sales with multiple models thats in the early stages especially even the body material production process was copied along with the chassis.

It failed I think at saturn and again in the gm minivans....

yet if we look at the cost for steel and die costs for the chevy bolt or chevy bolt...

maybe the early risk analysis might suggest c8 design chassis developments with either steel body panels or smc body panels might make sense jntil gm goes second gen knowing which body styles are the most popular...

probably takes the concept of this thread too far...

i think the chassis design extension to future ev s makes sense.

i think the composite panel body material goes too far...

bedford 777 and zora 69 thanks for indulging me with this discussion...

i often find this type fo discussion quite fascinating as to how the corvette team is able to offer such great cutting edge technology at such a great price... and how and why the corvette team within a monolith organization is able to expand processes beyond traditional mindsets of the industry.

i think thats one of the major benefits of corvette to gm beyond of course profit margins etc..