sydneyman

its my understanding that that would only transfer the force to the occupant. Maybe the open space acts as a crush zone. Completely talking out of my butt here, i have no idea truly.

Imo000

It can also transfer the loads to points that are designed to crumple however, without any data, all this is just a shot in the dark but I'm sure Porsche crash tested the car with and without a spare tire and it passed the test.

Adk46

I'm supposed to be doing the taxes, but instead I'm doing research on this question: NHTSA didn't start crash testing until 1979, per Wikipedia - https://en.m.wikipedia.org/wiki/Automobile_safety. The same article implies new cars were not tested in Europe until much later. This doesn't mean Porsche did not do its own testing, or there is no difference. The 928 was designed in an era when automobile safety had become a big deal (and of course, partially in reaction to Mr. Nader himself.)

Imo000

Considering how strict TUV in Germany always was. I'm be surprised crash testing wasn't mandatory before North America.

sydneyman

ive been surprised how much more strict america is compared to europe regarding environmental and safety standards. at least since the 70s.... But i agree it seems strange.

hacker-pschorr

Crash testing or stupid 5mph bumpers?

Europe required front offset and side impact crash tests years if not decades before the US.

However, the US 5mph bumper requirement is forcing Bugatti to add small bumperettes to the Chiron in the US market:
http://www.roadandtrack.com/new-cars...n-for-america/

I've been reading up on this, it appears these bumper laws are to appease the insurance companies, not US DOT regulations. Which means the manufacturer / dealer cannot remove them, but the owner can. However..... if your Bugatti is rear-ended and you took the bumpers off, could cost you a lot of money.

BigCavolo

Back to some helpful info

V2, Which boxster and 996's spares specifically would fit on the 928? Will they also fit in the hatch compartment? Is the Sharkwoofer still an option? I'm looking to buy a spare since I drive all over Texas and thought this might be a more economical route and easier to come by...?

V2Rocket

Didn't see the 928 used a collapsible spare rather than "full size".
I don't remember off-hand but the 97-04 986 Boxster and 996 2wd have the tire pictured above, a 3.5" wheel with a "IIRC" 105/75R16 tire.
it should fit "loose" in your trunk area but you'd want to put some kind of "hold down" provision to keep it flopping/flying around. it most likely would not fit in the stock 928 spare tire well below the carpet.

....
However...I just did a quick search and it appears the 996 4wd models (C4, C4S and turbo) came with a collapsible spare since they had less frunk space. So that might just work...tire is 185/60-17, per another thread the width is 6" and OD of the collapsed tire is 21", how does that compare to your 928 piece?

DishoomX2

[nvm wrong thread]

Red Flash

Thanks for posting accidentally Dishoom! I hadn't noticed this thread first time around.

Is the general consensus then that the original spares are now too old to work?

I am the kind of person that wants a spare. The newer one from the 996 could be an option then I guess.

Bigfoot928

Since most of us are running +1 or +2 spares we should probably look at the 996 spares. The 4 key measurements would be collapsed diameter to see if it fits in the well, then the expanded diameter, and then the offset to see if it clears the brakes as a lot of us have brake upgrades. I very seriously doubt even the 996 spare would clear my front brakes.

928 DesMoines

There was an older thread here someplace where someone explained how to test your spare and then collapse it back to storage size. Maybe someone should revive that one. LOL.


In the past, I had considered using "run flat" tires. However, I still carry my original spare. I also have AAA.

Bigfoot928

OI’m away from home so I’m curious what the diminsions of the spare tire well are? The 996 spare is a5.5x16 with an ET10 offset

928 DesMoines

Maybe someone will inflate an old spare during Frenzy this year.

C531XHO

I had to use the spare on my 89 last summer when I had a flat after the tyre shops had closed. Hole was too big for tyreseal. I was a bit sceptical at first as the handling is definitely affected. Luckily it was on the rear but if on the front I would have swapped good wheel over. Because of distance/time constraints to catch an early morning ferry I drove approx 370 miles on it. Tyre held up fine although the handling was definitely affected. Distance meant I ran it at up to 70mph. I was impressed that the original pump worked to be honest as I had only given it a cursory check before departure, not a full inflation test. Handling aside I like the look of the red wheels but maybe that's just me!

David