Performance Package spare tire vs. regular spare

[gpvecchi]

Have you tried fitting it at the front?

[Stang70Fastback]

Originally Posted by churchx

why not use for inside foam piece aygo's cone & use inside of spare wheel for item storage? At least that's what i do with also R17 spare from subbie breaker yard.

That's another option. I like the larger support of the full "bowl" insert, especially since I sometimes put rather heavy items in the trunk. Also, the tow strap, and some of the other items I store inside the spare tire have metal parts that would make a lot of noise if they were placed straight into the wheel. I could wrap them, or put them in bags, but it's just easier to use the bowl-style insert, which allows for some storage space, but insulates metal objects from the spare tire wheel.

Originally Posted by churchx

What P/N is for original mounting screw for spare?

I reused the existing screw I had. It screws in deeper, but it didn't seem to be an issue.

Originally Posted by gpvecchi

Have you tried fitting it at the front?

It would have been pretty silly of me to go through all this without even checking to see if it fit first! :P

[churchx]

Originally Posted by Stang70Fastback

That's another option. I like the larger support of the full "bowl" insert, especially since I sometimes put rather heavy items in the trunk. Also, the tow strap, and some of the other items I store inside the spare tire have metal parts that would make a lot of noise if they were placed straight into the wheel. I could wrap them, or put them in bags, but it's just easier to use the bowl-style insert, which allows for some storage space, but insulates metal objects from the spare tire wheel.

Items w/o bags can rattle against each other too . I needed to ensure to not rattle fire extinguisher. It's not just put in, it's plastic mount is bolted with thumbnuts to spare for it to not move around (it's still easily/quickly detachable from mount), and one of it's end is in plastic bin of mount, another with extinguisher's handle .. i just put raincoat pack or gloves between it & spare.
Anyway, my main point is for all the emergency stuff i carry around, both "summer set" & "winter set" (+towing rope & jumper wires) was to fit there and to not take any boot space. That is accomplished (with exception of snow/ice mid-sized shovel that is of size to not fit there even with no wheel at all).

I reused the existing screw I had. It screws in deeper, but it didn't seem to be an issue.

Just that i bought/used screw that has black plastic star shaped head. I guess yours may be shaped to fit some cutout in that foam dish, so i wondered what P/N it is.

[Stang70Fastback]

Originally Posted by churchx

Items w/o bags can rattle against each other too . I needed to ensure to not rattle fire extinguisher. It's not just put in, it's plastic mount is bolted with thumbnuts to spare for it to not move around (it's still easily/quickly detachable from mount), and one of it's end is in plastic bin of mount, another with extinguisher's handle .. i just put raincoat pack or gloves between it & spare.
Anyway, my main point is for all the emergency stuff i carry around, both "summer set" & "winter set" (+towing rope & jumper wires) was to fit there and to not take any boot space. That is accomplished (with exception of snow/ice mid-sized shovel that is of size to not fit there even with no wheel at all).

Yeah, it's definitely another option if you need more space. I have enough space with the disc-shaped insert for now. All I carry with me are jumper cables, a tow strap, a flashlight, two safety vests, a pair of gloves, and a breaker bar, and all of that stuff fits in that area without needing anything in the main trunk area

I do intend to add a fire extinguisher at some point, but if I do it will be mounted in the cabin somewhere.

Just that i bought/used screw that has black plastic star shaped head. I guess yours may be shaped to fit some cutout in that foam dish, so i wondered what P/N it is.

Ahh. Yeah, I can't find a part number listed for the PP-style wheel, but my regular one fit just fine, despite being longer than necessary. I was able to find the part numbers for mine. Interestingly, this one also has a plastic head, rather than my metal one, but it looks to be the same shape.

Screw: 901720002
Giant Washer Thingie: 97047FG000

[churchx]

Stang70Fastback: how about idea cutting out some excess foam from below of dish-foam for extinguisher so that most of dish shaped shape is retained, but to let it fit there with just side sticking out through dish? I don't like most other options for fire extinguisher placement inside cabin, like using center console recess (where originally cupholders) (as i often have there similar sized thermos with coffee during long trips or trackdays), or in front of passenger seat (that imho may limit it's movement, and thus getting in/out rear seats, or be in a way of legs with seat moved back). So space inside wheel seemed about only sensible one to put something as long and of such diameter as extinguisher, when i played my "lego game"

[Stang70Fastback]

Originally Posted by churchx

Stang70Fastback: how about idea cutting out some excess foam from below of dish-foam for extinguisher so that most of dish shaped shape is left, but to let it fit there? I don't like most other options for fire extinguisher placement inside cabin, like using center console cutout (as i often have there similar sized thermos with coffee), or in front of passenger seat (that imho may limit it's movement, and thus getting in/out rear seats, or be in a way of legs with seat moved back). So space inside wheel seemed about only sensible one to put something as long and of such diameter as extinguisher, when i played my "lego game"

I don't want it buried in the trunk. I want it to be something I can grab immediately if necessary, even if the trunk is full of stuff.

I have no intention of putting it in the center console, as this isn't a dedicated track car. I had been considering mounting it behind my driver's seat. If I ever do get a third passenger, they always sit on the passenger side. I just have to find a spot that makes sense, and isn't obnoxious.

[Racecomp Engineering]

Thanks for the details!

Does the original "small" foam insert still fit on top of the new tire? Wondering if the new piece is required for secure fitment of the new spare.

It does seem like the foam piece underneath the tire would be a must have.

- Andrew

[cjd]

Originally Posted by Racecomp Engineering

Thanks for the details!

Does the original "small" foam insert still fit on top of the new tire? Wondering if the new piece is required for secure fitment of the new spare.

It does seem like the foam piece underneath the tire would be a must have.

- Andrew

I believe you might get a rattle of the wheel against the trunk without the foam under. The wheel dish is very slightly deeper than the width of the tire. I've never actually driven with it this way though - I always remembered that other piece of foam before I had everything all back together. Usually I just drive around with 4 full size 'spares', but for road trips it gets the civilian treatment.

Also, as JF noted, the small foam insert 'fits', but doesn't support the trunk liner and stuff above.

[Stang70Fastback]

Originally Posted by Racecomp Engineering

Thanks for the details!

Does the original "small" foam insert still fit on top of the new tire? Wondering if the new piece is required for secure fitment of the new spare.

It does seem like the foam piece underneath the tire would be a must have.

- Andrew

The foam that goes INSIDE the tire definitely isn't necessary to secure the spare to the car, but I'm not sure it would do a great job of properly supporting the trunk floor, as it is 1" narrower, and I don't think it would seat properly inside of the spare. It isn't so much the side-to-side play as much as I'd be worried about it being pushed down into the spare with a heavier load in the trunk, but I suppose anything is possible.

[n0thing]

I have the AP Sprint in the front only. I was thinking of first swapping the spare to the rear, then the full size to the front. Of course, I hope I'll never get into such situation to begin with.

[Stang70Fastback]

Originally Posted by n0thing

I was thinking of first swapping the spare to the rear, then the full size to the front. Of course, I hope I'll never get into such situation to begin with.

That is the exact opposite of what you are supposed to do. Per the Owner's Manual, the spare tire should ONLY go on the front. There are several reasons for this, including the propensity for the vehicle to pull one way or the other with mismatched rear tires, and excessive heat/wear on the differential.

Probably not a huge deal for a short trip to the tire shop, but if you need to do a bit of driving before you can fix it, it's best to put it on the front.

[churchx]

It's not that hard to kill LSD diff via overheating with different size wheels, as it makes diff work even in straight line, and it hasn't any extra diff oil cooler or isn't overhauled after drive like some race setups. Overheat->oil brake down->increased wear. I'd probably wouldn't risk that expensive experiment even driving to not that far tire shop. It's not THAT hard to do extra step of changing with same size wheel/tire from front if rear is punctured .. unless it's staggered setup .. but with later questionable looks takes priority over anything so one should wait for roadside assistance anyway instead of carrying in boot spare that will help only in 1/2 of cases.

[Leonardo]

Originally Posted by Stang70Fastback

That is the exact opposite of what you are supposed to do. Per the Owner's Manual, the spare tire should ONLY go on the front. There are several reasons for this, including the propensity for the vehicle to pull one way or the other with mismatched rear tires, and excessive heat/wear on the differential.

Probably not a huge deal for a short trip to the tire shop, but if you need to do a bit of driving before you can fix it, it's best to put it on the front.

The S2000 is the same. " Do not run your spare tire on the rear"

[churchx]

It's same in manuals even on FWD cars with LSD in front.
And people have killed transfer cases on 4WD by running different sized wheels front to rear and of course denied of warranty for that.
There are two reasons for that happening.
1) nobody reads manuals these days
2) due higher cost very few cars have LSDs instead of open diffs (with at most on modern cars some "e-diff" with applying brakes by traction control) in car manufacturer world regulated by beancounters, so relatively few learned it by experience / from their own cars.