Ultimate cross member for a C3

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Apr 23, 2003 | 07:59 AM

#21

C3 Shark Tank

Safety Car

Joined: Jan 2001

Posts: 3,990

Likes: 0

From: No longer a member

Re: Ultimate cross member for a C3 (Glensgages)

Hey I'm famous! :jester That is the crossmember I have on my car, in fact that is my car :D Got it from Bow Tie Overdrives, it was one of the first they sold. I think it was $180 at the time. There's more pictures HERE of it.

Apr 23, 2003 | 08:06 AM

#22

OkeeGuy

Safety Car

Joined: Mar 2002

Posts: 4,411

Likes: 1

From: Okeechobee Florida

Re: Ultimate cross member for a C3 (C3 Shark Tank)

do they make one for a 4 speed car?

Apr 23, 2003 | 08:20 AM

#23

QuickVet

Race Director

Joined: Feb 2000

Posts: 12,431

Likes: 1

From: CT

Re: Ultimate cross member for a C3 (SIGNGUY)

Quote:

do they make one for a 4 speed car?

or is it possible to make that work with a t-350?

Apr 23, 2003 | 09:09 AM

#24

Tom73

Race Director

Joined: Apr 1999

Posts: 15,133

Likes: 477

From: NM

Re: Ultimate cross member for a C3 (myisa69)

Quote:

Since it is not a straight tube and square, will it be as strong as original ?

That was my thought. The original is a massive frame cross member. Will a small tube taking its place be as strong? Don't think so, but is that a real issue with the massive C3 frame?

tom...

Apr 23, 2003 | 09:28 AM

#25

ZD75blue

Race Director

Joined: Nov 2000

Posts: 16,416

Likes: 1

From: NC,USA

Re: Ultimate cross member for a C3 (Tom73)

Quote:

Since it is not a straight tube and square, will it be as strong as original ?
That was my thought. The original is a massive frame cross member. Will a small tube taking its place be as strong? Don't think so, but is that a real issue with the massive C3 frame?

tom...

From what i remember taking mine out, its very very thin metal...except on the mounts. Mine's also been hacked up, and the welds arent to great. Looks like stamped sheetmetal.

My gut feeling is that if the steel is the same as what you would use for a roll bar, it should do the trick :cheers:

Apr 23, 2003 | 10:55 AM

#26

garagedweller2

Le Mans Master

Joined: Dec 2001

Posts: 8,656

Likes: 0

From: Brooklyn NY

Re: Ultimate cross member for a C3 (ZD75blue)

Still, are there any chassis reinforcements that can help with frame flex?

Apr 23, 2003 | 11:39 AM

#27

IronJen

Abby Normal

Joined: Dec 2001

Posts: 53,287

Likes: 92

From: Press "2" for English

Re: Ultimate cross member for a C3 (Tom73)

Quote:

dittos. although i'm not really sure how much advantage that particular cross member has for frame stiffening, i would want it as straight as possible. personally, i think the position of the factory crossmember only accomplishes two things: 1) supports the trans and 2) ties the framerails together to prevent a harmonic frequency down the length. it has no significant torsional stiffness. this one is probably a good compromise for converting cars over to a different trans.
still working on the stiffness issues of the c-3 frame. :smash:

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