Has anyone hurt/broke the car with chassis stiffening?

[ckessel]

Breaking the spot welds would point to inadequate welding technique's and quality. Don't think I'm going to have that issue.

 

[wagonman]

Breaking the spot welds would point to inadequate welding technique's and quality. Don't think I'm going to have that issue.

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Burn it in Baby. Hell Yeah.

 

[Jeff Peterson]

Yes, look back at the 65 altered wheelbase factory cars, all hard tops and the were bending like crazy. Chrysler tried to get the racers NOT to do wheelstands. Eventually they became bent beyond repair

The awb cars had the same b pillars as the sedan, they were severely weakened by the acid dipping and only a few teams knew to tie the frame from the start, ultimately all were reinforced in some way, the launch is what was bending the bodies, front end damage was the result of the “wheelies”

 

[ckessel]

I cut the spot welds on the floor where the rails attached for 8-10" back from the edge of the rails. Then I slit the rails for about the same distance along the vertical portion, pulled the vertical walls into contact with the new sfc"s using c-clamps and vise grip welding pliers[ after drilling several 5/16" holes in the vertical walls]. From there bounced around welding the holes after moving the clamps around to get the most contact between old and new. Lots of weld grinding ensued afterwards.

 

[Ceedawg]

The awb cars had the same b pillars as the sedan, they were severely weakened by the acid dipping and only a few teams knew to tie the frame from the start, ultimately all were reinforced in some way, the launch is what was bending the bodies, front end damage was the result of the “wheelies”
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All altered wheelbase cars from the factory where hardtops, races took the normal 65 sedans and made them altered wheelbase cars.

 

[Jeff Peterson]

All altered wheelbase cars from the factory where hardtops, races took the normal 65 sedans and made them altered wheelbase cars.

Yes, the factory cars were hardtops, but had the B pillar added, just like a sedan as the above photo shows.

 

[cdoublejj]

You got to remember if it don’t flex it breaks. Great for a car that goes over 100,000 miles. Truck frames have a definite cycle time like 200,000 cycles, weld on it and that time goes way down and will crack. Ships, planes and any other big vessel are DESIGNED to flex, think of the 1000 + foot oil tankers. Ever seen the railroad tracks welded? They bend up on a flatbed trailer, welded, Then the trailer is moved to the next section as the welded section lays back on the rail bed like a noodle. A cage IS the chassis, the body just hangs on it like a painting.

THANK YOU! You jock my memory I remember my friend telling me about repairing big truck semi frames sometimes he would see failed repairs for people use square edge steel not rounded edge cuz the frame rails were designed to flex. That also echoes a sentiment of improperly installed repairs or stiffeners.



I went back and read through comments on Uncle Tony's video and a lot of people seem to change their mind from what he was saying and someone raised a good point

I've skimmed over a few I need to go back and read the rest of the replies here but you see plenty of people talking about busting spot welds on modified cars with no frame stiffeners or hacked up unibodies.

You do not see people complaining about break and frames after putting stiffeners and frame rails in.


I think that kind of puts that to bed.


The only other thing I like to point out is you do see some people knock various mods and stiffeners but usually those people are also selling their own modifications.


The other thing is oh you'll break the spot welds or something like that you know work hardenings and issue that's probably maybe why some of the stock cars break their spot wells if not sheer force and shear force lol. I've also heard one other argument when you stiffen up frames and this is just in general with cars You force a suspension to do the work I know on my Nissan Maxima people like to put big *** giant washers on the subframe hardware and bypass all the polyurethane and rubber so that is directly bolted to the car to force the coil overs or struts to do more work they say it makes a positive effect on the car's handling


You still need to read the rest or applies here but I think I've decided that I'm just going to go FULL HAM I'm going to put my US car tool kit on I'm going to make my own parts and I'm going to get forward strut bars from the ends of the front frame rail to the firewall That ought to be stiffer than an entire bottle of Viagra. ALSO possible side thought worth exploring is the idea of this stuff also distributing the load and also forcing the suspension and springs to do more of the work. EDIT I need to come back on my laptop and edit this I use voice to text the cell phone screens are too small guys

 

[Kern Dog]

Some people are unaware that when the chassis flexes, it is actually another large spring. Eliminate chassis flex and the suspension has a a solid platform to work from. Because of this, the springs on a reinforced car are more effective.

 

[70chall440]

Over the years I have seen broken spot welds on a number of vintage Mopars, specifically around the shock towers in the engine compartment and along the quarter panel/roof joint. When or under what conditions these welds break (normally it is the metal around the weld that fails) is unknown however we do know that they fail due to flex (like bending a piece of metal back and forth until it fatigues and breaks). They didn't fail due to vibration, heat or cold (although heat and cold could contribute to a failure of the flexing occurs when the metal is hot or cold). Point being here is that as has been said throughout this thread, stiffening the chassis is a net positive which reduces or eliminates spot weld failure and makes the car handle and brake better.

The fact that UTG would make such a stupid statement along with a video attempting to justify it speaks to his lack of understanding of engineering principles and just lack of knowledge. Sure, anyone/everyone says stupid (wrong) things from time to time but he seems to make a habit of it. It appears that he just like to hear himself talk and is trying to get paid from YouTube so he makes crap up and puts it out there.

I know there are people on here and all over the world that like him just like there are people who like GYC, but this does not diminish the fact that both of those individuals are not what they profess to be and neither is remotely as smart or knowledgeable as they want the audience to believe. I find them both 'unwatchable", there are too many other reputable sources of information and entertainment.

 

[ckessel]

Adding spot welds in is easy. Along with doing my k-frame[ added 120+ welds], I added welds to the shock towers, where the upper arm attaches on the frames, along the frame flanges in the bay, made up a new lower tie bar, made a new core support. Just takes some time, but it will be worth it.