Ugh...canadian supras

LilRedSupra

Soupy
May 8, 2006
198
0
0
Louisville, Ky
I have an 89 Canadian Targa Supra, and well u know how most Canadian cars age over time! PART of the frame rails are rusted, but not completely rotted. Being that the chassis is based upon a unibody construction, structural points are integrated into every part of the chassis including the BODY. Do you guys think that the REAR most part of the frame rails serve more structural support opposed to the ROCKERS, which are pretty damn beefy or do you think the rails are. The frame rails are pretty light gauged steel compared to the metal throughout the rockers. What are you all opinions. Being that I absolutely hate the sight of rust and I'm a wiz with metal( Welding/sculpting) I want to replace the rusty part of the rails. Tell me what u all think!:icon_bigg
 

bgrieger

New Member
Mar 30, 2005
206
0
0
53
Toronto
If you can replace it, go for it. If not, I parted a car and cut most of the chassis up to see how and where Toyota hid 3000 lbs. The rockers are made up of a series of folds of steel up to 1/4 inch thick in spots. The car will maintain shape with both rockers cut and the targa removed, and did so until I cut through both sides through these rails and well into the trans tunnel where it finally gave way with about 8 inches of tunnel holding it all up. I was inside the car at the time, so there was 175 lbs or so of weight pushing down on the newly created weak spot (I made sure it could only drop 2 inches or so...I don't have a death wish). Not very scientific, and certainly I wouldn't have expected it to hold on the road after cutting the rockers, but it suggests that the small "rails" running from front to rear only add to the support, and that most of the loads are borne by the tunnel and the rockers.
 

LilRedSupra

Soupy
May 8, 2006
198
0
0
Louisville, Ky
bgrieger said:
If you can replace it, go for it. If not, I parted a car and cut most of the chassis up to see how and where Toyota hid 3000 lbs. The rockers are made up of a series of folds of steel up to 1/4 inch thick in spots. The car will maintain shape with both rockers cut and the targa removed, and did so until I cut through both sides through these rails and well into the trans tunnel where it finally gave way with about 8 inches of tunnel holding it all up. I was inside the car at the time, so there was 175 lbs or so of weight pushing down on the newly created weak spot (I made sure it could only drop 2 inches or so...I don't have a death wish). Not very scientific, and certainly I wouldn't have expected it to hold on the road after cutting the rockers, but it suggests that the small "rails" running from front to rear only add to the support, and that most of the loads are borne by the tunnel and the rockers.
Thanks guy, very informative. As for the rest of the car, it is in pretty damn good condition, I just want to address this issue before it becomes a REAL problem.Thanks again
 

bobiseverywhere

bobb'n for money
Apr 1, 2005
1,991
0
0
44
Montreal
www.bobiseverywhere.com
Quebec you are lucky to get your car out of here lol Crazy destruction, if the salt does not get you the roads and horrible pot holes will.

my guess is the car came from somewhere west of here

also i like bgrieger's explanation

I think the bigger question is where else is there Rust, cause it's like cancer and if its one place it's many places