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I have one. A cage builder can configure the horizontal cross bar to accommodate some reclining, but I'm not sure you'll get 85%. A full cage and street worthiness will represent a serious compromise in some regard.
Mark is right on re the DAS roll bars. They are great. That's all you should need for a DE. Not sure what you mean by rear extensions? I had a DAS in my 993 convertible I used to take to DE's and if I remember right the rear section bolts right into the rear seat belt bolts. I used to take both seats out and put the roll bar in and then put the seats back in. Takes a couple hours. Pretty easy to do. Heck I club raced with one until PCA mandated full cages.
Mark is right on re the DAS roll bars. They are great. That's all you should need for a DE. Not sure what you mean by rear extensions? I had a DAS in my 993 convertible I used to take to DE's and if I remember right the rear section bolts right into the rear seat belt bolts. I used to take both seats out and put the roll bar in and then put the seats back in. Takes a couple hours. Pretty easy to do. Heck I club raced with one until PCA mandated full cages.
I'm pretty sure he means a four point roll bar. Main hoop plus two rear arms supporting the hoop.
No way I would put a full cage, custom weld or bolt-in, for a "street car with the odd DE days". Your money, of course, so do what makes you happy, but you will kill the value of your car because it will be neither fish nor fowl when it comes time to sell it. It will be beyond hardcore for the buyer looking for a clean street car and too soft and not well-developed enough for someone looking for a pure track car that is streetable.
FedEx Ground is not too bad to ship a DAS roll bar. Way back in 2003, I paid $32 to have a DAS bar shipped to me from Colorado via FedEx Ground. Prices have gone up, I'm sure, but this is the first route I would check. Also, do a search to see how others have handled shipping.
Probably not going to get the recline Coop needs though (but if anyone else is interested send me a pm ). Would safety devices have more / different options for bolt in?
No way I would put a full cage, custom weld or bolt-in, for a "street car with the odd DE days". Your money, of course, so do what makes you happy, but you will kill the value of your car because it will be neither fish nor fowl when it comes time to sell it. It will be beyond hardcore for the buyer looking for a clean street car and too soft and not well-developed enough for someone looking for a pure track car that is streetable.
Great post Mark.
I have been debating this a little lately as well. It seems like a full cage is not recommended for any car seeing more than a little street driving. I mean driving to and from events is one thing but for a double duty car it would be overkill. Mostly because it's not a good idea to drive without a helmet with a full roll cage and you don't want a helmet when getting groceries.. But on the other hand, it depends how close the cage is to the head. One option could be a custom IRC, like the ones RUF does. On these cages the IRC is about as far away from your head as the standard A and B pillars are. It's not much closer and even if you would hit the regular A pillar, I'm not sure it's much more comfortable to hit than the IRC... So that could be an option. I don't know how the reasoning is behind the bar that connects the A and B pillar along the door, maybe that is not ideal to have on the street as it makes it harder to get in and out of the car. An IRC is also less "racer" as you can barely see it but the bad news is it's expensive.
Assume that you go for the roll bar setup only, what would the advantage be with a welded roll bar (custom welded roll bar where the roll bar is welded to the B-pillars and also to the chassis in the back? Would it provide additional chassis stiffness? Probably. Is it reversible? Not really. And here maybe Marks comment applies: It will be "too much" for street driving as it's not reversible and it will not fit the bill for a pure track car as in that case a full cage is preferred.... Or what do you think?
Maybe it's either a bolt in roll bar (like DAS) or a custom welded IRC ($$$$)?
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