Re: [DML] Rob Grady's Personal Lower Suspension
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Re: [DML] Rob Grady's Personal Lower Suspension



From my point of view as a mechanical engineer, I look at potential failure modes. The insurance company would be very interested in an engine fire in your car if you hadn't declared its modifications in that area. But would they look at the front springs if you'd had an engine fire?

The other items you mention are highly unlikely to fail or cause accidents if they do. Engineered properly, not just by using a wet finger in the wind as you seem to enjoy doing, the chances of failure are limited. 

In the case of some of my products, the manufacturer is fully aware of the application and ultimately the liability rests with them.

I would be very cautious about installing 100% wishbones and losing the safety aspect of the ARB.

Martin
Sent from my BlackBerry®

-----Original Message-----
From: "content22207" <brobertson@xxxxxxxxxxxx>
Sender: dmcnews@xxxxxxxxxxxxxxx
Date: Wed, 09 Nov 2011 05:08:17 
To: <dmcnews@xxxxxxxxxxxxxxx>
Reply-To: dmcnews@xxxxxxxxxxxxxxx
Subject: Re: [DML] Rob Grady's Personal Lower Suspension

I wonder if David considers Bryan's frames that Houston is installing under its $60,000 rebuilds to be experimental, detrimental, insurance fraudulent, etc? How about Bryan's LCA's that Houston used to sell? Do the many different lowering springs on the market qualify as experimental, detrimental, etc? How about Rob Grady's (or anyone else's) aftermarket rims? Both Toby Peterson and Martin Gutkowski have sold replacement trailing arm bolts -- should owners stay away from them? Adjustable lower links unfortunately seem to be a popular item. Same with Toby's stainless steering column. Should owners with Momo steering wheels send them back? Whose lug nuts should we use? Has anyone told Houston to put their new underbody project on ice? 

Etc. [eye roll]

Bill Robertson
#5939


--- In dmcnews@xxxxxxxxxxxxxxx, "jtrealtywebspannet" <jtrealty@...> wrote:
>
> I doubt Bill is worried about liability or insurance matters. What do you think his insurance company would have to say about his car if the engine caught fire and they figured out he removed all of the original fuel system and put a carburetor on? In my experience they rarely figure that kind of thing out but they are getting smarter about that kind of stuff. Before paying out they may require you fill out a questionnaire and among the questions is what modifications have been done to the car. Lie and get caught and that is insurance fraud. As for modifying the front suspension, although it may be a "kit" and has been available for a long time, it would still be considered "experimental" and custom, certainly not stock. To my knowledge there has been no engineering study or testing to prove out that it is safe under all conditions (or at least as safe as the stock set-up). Under extreme driving conditions, high speed, or panic stops for instance, no one knows how it handles. For the "masses" it is an expensive thing with little to no benefit. Upgrading the suspension is only necessary if you increase the HP and braking systems and run the car a lot harder than most would do for street driving. For what the Delorean was designed for, the front suspension is adequate as long as it is kept in good repair. Not every change is an "upgrade". Use Bill's carburetor as an example.
> David Teitelbaum
> 
> --- In dmcnews@xxxxxxxxxxxxxxx, "content22207" <brobertson@> wrote:
> >
> > DMCH markets itself as the closest thing to Dunmurry -- hardly "backyard." Ed Uding's brackets are made by one DMC franchise, and sold stateside by another DMC franchise, so I assume they have H
>




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