|
Re: Real world weight loss program and it` cost..........
[Re: fullmetaljacket]
#1353846
04/08/13 12:47 AM
04/08/13 12:47 AM
|
Joined: Feb 2003
Posts: 6,849
fullmetaljacket
master
|
master
Joined: Feb 2003
Posts: 6,849
|
Here's a rough mock up of the aluminum member with out the trimming to bring it to within the dimensions of the original one.
The next time this pup is viewed by you'll, it will be ready to paint and mount.
Shaves 3-1/4 Lbs. Lots of work for little gain, but that's the game.
I just reweighed everything leading back to an original unmolested cross member and found the following:
Stock steel member weighs in at 5-3/4 Lbs with the trans mount on board.
Steel member modified and trimmed as you see on this thread came in at
5-1/4 Lbs with the trans mount on board.
The Aluminum member with trans mount on board comes in at 2-1/2 Lbs.
Like said above, not much, but I'll take it.
Last edited by fullmetaljacket; 04/08/13 05:45 PM.
|
|
|
Re: Real world weight loss program and it` cost..........
[Re: fed]
#1353848
04/08/13 05:27 PM
04/08/13 05:27 PM
|
Joined: Feb 2003
Posts: 6,849
fullmetaljacket
master
|
master
Joined: Feb 2003
Posts: 6,849
|
|
|
|
Re: Real world weight loss program and it` cost..........
[Re: VernMotor]
#1353850
04/08/13 10:51 PM
04/08/13 10:51 PM
|
Joined: Feb 2003
Posts: 6,849
fullmetaljacket
master
|
master
Joined: Feb 2003
Posts: 6,849
|
Wow. Never seen a member do that. Is it a four speed?
Do you have a trans brake?
I think you may have had some really porous contaminated metal there from the factory. Chrysler was not known for pretty precision welds anyway.
My steel member has never done any cracking in all the years that I have abused it. Maybe the drive train was out of alignment? Strange.
As far as this alloy member, trust me when I say that I have given it all a good thought and studied every possible way that it could/would fail, so that is why I have come up with the extra material pill box, 6061-T6 material through out, stress relieved radius corners and a constant visual multi-point inspection of the car and its special parts before and after racing activity for peace of mind.
I appreciate your concern.
Could you believe that back in the day in the name of saving weight, Factory engineers, Pontiac engineers as a matter of fact came up with the cocky idea of creating an aluminum exhaust header for their Cheese cars. Who would think of such a crazy idea knowing that it is no less than a raging furnace at those points. Of course they failed and pretty much melted like the wicked Witch of the West in Oz.
As far as the cheese frames, well those did not fare well either in some cases.
Last edited by fullmetaljacket; 04/08/13 10:55 PM.
|
|
|
Re: Real world weight loss program and it` cost..........
[Re: VernMotor]
#1353856
04/08/13 11:28 PM
04/08/13 11:28 PM
|
Joined: Feb 2003
Posts: 6,849
fullmetaljacket
master
|
master
Joined: Feb 2003
Posts: 6,849
|
Put that bad boy on a Jacko-Lee diet plan and watch the cracks hit the sack. 150-55 ft times is rather hard on parts with that weight, hence this thread.
Then again, my friends Duster would crack the floor with his pinion snubber on a 1.50 60'ft time street car weighing 2900 and change.
Last edited by fullmetaljacket; 04/08/13 11:35 PM.
|
|
|
|
|
ill leave this here 
