Weight loss checklist

10secBu

MalibuRacing Junkie
Thread starter
May 21, 2003
4,284
0
36
Westminster, MD
Gitdowns said:
10secBu said:
5-door said:
You might find this hard to believe, but a Ford 9" is lighter than a 12-bolt. It's even lighter than a 10-bolt.

I'm not sure if I would buy that or not. If that were true, then why would some NHRA Super Stockers and Comp eliminator cars run a 12 bolt (I've seen dragsters with GM 12 bolts...I've even seen Mopar S/S cars with GM 12 bolts. I guess it could also be less parasitic loss due to the pinion to ring gear position. But a stock 9" with an iron center section, I'm pretty darn sure the 9" is heavier than a 12 bolt.

Not having weighed either side-by-side myself, I surely could be mistaken though.
They use 12 bolts because they use less hp. The loss in friction out weight the loss you would have because of the weight.

I know that and that's why I stated the examples given. But that is somewhat old technology.

The current tech setup for lowest drag in a rear differential is a Ford 9-9 1/2" center section manufactured by Dewco. Ultra low drag, ceramic bearings, all the tricks at a cost of around $5k for the assembled center section.
 

2fatties

Daily Driver
Oct 29, 2006
16
0
0
Wichita, Ks
www.2fatties.com
Weight Loss: Front Upper A-arms swap

Stock a-arm with ball joint 8.4 lbs
Speedway upper front a-arm with Speedway ball joint 4.0 lbs

A-arm description: These 4130 chrome moly metric upper control arms are 40% stronger than standard control arms. They bolt to a stock mount and use the bolt-in style ball joints. Aluminum cross shaft.

Cost of the project from Speedwaymotors.com:
Qty SKU Description Price Total
2 91720045 GM UPPER BALL JOINT $14.99 $29.98
2 91031133-R UPPER METRIC A-ARM,ALUM/STL $47.99 $95.98
1 91016009 PRO-BLEND ANTI-SEIZE $6.99 $6.99

Sub Total: $132.95
Discounts: $0.00
Tax: $0.00
Shipping Total: $9.93
Total: $142.88


Will post pics and how-to article in the next few days if interested..
 

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d.o.c

Daily Driver
Jan 4, 2010
45
0
0
Bay Area, CA
how did those arms workout? are they stock length or do they changed anything?
 

406Monte

Dragway Regular
Nov 30, 2007
1,019
0
0
Hubert, NC
I wan to know about the deal on the arms as well, I am looking into getting a set of uppers and lowers for mine. I am going to rebuild the front end on it after the frame off.
 

flatblack79

Pro Stocker
Feb 28, 2010
1,796
0
0
Stockbridge, Georgia
Does anyone know off the top of their head how much a stock dash weigh? The only dash iv'e ever handled was one out of my dads '68 charger and it had to have weighed 30 lbs.
 

406Monte

Dragway Regular
Nov 30, 2007
1,019
0
0
Hubert, NC
I just had my dash out and they are pretty light. I would say not more than 10 lbs. I am getting my new dash this weekend and can weigh it and tell you this weekend if you want to know.
 

flatblack79

Pro Stocker
Feb 28, 2010
1,796
0
0
Stockbridge, Georgia
406Monte said:
I just had my dash out and they are pretty light. I would say not more than 10 lbs. I am getting my new dash this weekend and can weigh it and tell you this weekend if you want to know.
Yea sure im interested, are you getting like a sheetmetal dash or a padded one?
 

elcamino814

Amateur Racer
Nov 21, 2009
132
0
0
Beecher,illinois
the speedway arms worked out great! i wish they had lowers. only problem i had was when i took off the old ones i had to undo the motor mount cuz they were hitting my headers but other than it went smooth. great product.
 

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