Anyone ever thought of this?
 

Has anyone thought about these wheels. It is pretty crazy but can anyone give me a reason this wouldnt work

http://cgi.ebay.com/ebaymotors/Summi...Q5fAccessories

those would actually fit. although you would need to roll the fenders.

dude, they're for an ATV..i'm not sure if they would be abel to handle the weight and stress that a car puts on them..i would think its mre of a safety issue

Im new to rx7s. Is the +2.5 offset too low?

It says that they have over a 656 lbs load capacity per wheel. I bet these are stronger than a cheap aftermarket wheel.

I think you'd lose that bet.

A first gen is 2800 lbs at the curb. Divided by 4, that's a static load of 700 pounds per wheel.

Your wheels are 50 lbs over rated capacity sitting still.

Imagine your first attempt to dive into a curve at half a gee, and what that load (well over 1000lbs) will do to your 656-lb-rated outside front wheel.

i'm cleaning up my enkei meshies and they are 1600lbs load capacity. 650x4=2600, be afraid to have a passenger, and hit a bump

Those look disgusting and would probably perform the same on an first gen.

sorry sir but thats a big no no in my book!

Do you have a source? I'm most certainly not doubting you, I'm just suprised because thats 500 pounds more than I've ever heard quoted for a FB. I've been looking for this myself and several places online that claim they got the weight from mazda's brochures say around 2300lbs curb, and I'd like to know the real answer.

To the OP-this have been covered many times before. ATV wheels cannot be used on FB's.

2800lbs with passengers probably. My 89 auto FC tipped the scales at 2910. I'd say FB's range from 2280 (base model SA) to 2630lbs (loaded GSL-SE) depending on the model. Either way I wouldn't risk it.

i've put a bunch on the scale, all with full tank of gas, and no driver, as that's repeatable. all cars are stock except where noted

5/78 SA GS no ac 2420lbs (thermal reactor + steel bumpers make these about 80lbs more than an 81-83)
83 limited 2330lbs
84 gsl-se w/RB exhaust 2540lbs (its a porker i know! but why?

for a "curb" weight you'd add the driver at least

Curb weight in the US doesn't include passengers or cargo, but does include full-up fluids. Your numbers should be good.

My FB weighs 2680 with me in it, spare tire and jack, power everything, sunroof, 24 years of caked on road grime, a buck fitty in change on the floor, 30 dollars in the gas tank etc.

Granted, i weigh 230lbs, i don't know how an FB could be at a curb weight of 2800. I always figured mine would be one of the heaviest of the 12A models.

i've been curious to see how much mine weighs.....hmmm i might go to the recycling center tomorrow to find out.

85 GSL

no emissions, no A/C. power windows, E-fan, RB header to a pre-silencer and a ractive muffler...a few tools in the bin....any guesses? lol

my 85 gsl weighs 2260lbs w/o me full trim -emissions I weighed it on a certified truck scale, 1140 front axle and 1120 rear axle.

the last time I scaled my car for an scca solo tour event it weighed in at 2016 lbs. no driver. half a tank of fuel.

"Curb Weight" is fully loaded, crewed, and all fluids topped. It's Gross Vehicle Weight.

The SA's are somewhat heavier than the FB's, due to the exhaust differences and also things like the heavier bumpers and thicker fender metal. I'm only fully up on SA's.

Per the sticker on my door post, that's 2805 lbs for my '80. Since the payload (per the tire sticker on the door) is 340 lbs, that's an unladen but fully fuelled gross weight of 2465 lbs.

Pretty darned close to J9's 2420.

i know my 85 spec 7 is 2680 with me in it with a full tank and i have striped some stuff out, but the cage and fuel cell mount and such added weight back on.

GVW Gross Vehicle Weight is the weight of the vehicle plus the weight of the cargo it is rated to carry. Had a 8600lb GVW 3/4 ton standard cab/long bed Chevy truck....and it didn't weigh 8600lbs by itself.

From a racer's point of view the 79-80 RX7's are significantly lighter than all of the other years. In fact the SA's are the only RX7's that can typically make the ITA minimum weight of 2280 w/driver. Of course ITA cars are stripped of emissions, most of the interior, under coating, sound deadner, etc.

Oh, and the ATV wheels.....bad idea...really bad idea. For the same money you could buy some steel wheels from Diamond racing wheels.

difference might be ac? actually the search button might make you right too, i posted right after i got back from the scale, and it was a couple years ago... and i'm old...

zyrano's FB in CSP trim, no ac, no emissions, RB exhaust, full interior, we think was 2450 with him in it, so the car should be about 2200...

I'm betting there are several dozen pounds' possible difference car-to-car when they rolled off the assembly line, back in the 80's, just due to assembly differences and options;

AC or no
Sunroof or no
5-speed or 4-speed
wheel variations (steel vs alloys)
Interior trim variations (cloth v leather alone is probably a couple pounds)

GVWR is probably the "safe" number, assuming worst case heaviest build, since it's a regulatory number.

We kind of got off track here. :)

The point is that even if the car is stripped down to 2000lbs, you should still not run those wheels!

Do one of the following:
- get a nice set of stock wheels ('83 LE wheels are nice, paint/polish if you like)
- pick up some new aftermarket rims in 4x110 (not many choices) or get some old school 4x110 rims
- get wheel adaptors to run a more common bolt pattern
- swap a GSL-SE suspension on there (GSL-SE pattern much more common)
- upgrade to the re-speed.com big brake kit (better brakes, more wheel choices)

There are lots of options for you. These are all much safer than the ATV wheels and some options would not cost any more than the ATV wheels. If you are too broke for any of the safer options, just stick with the stockers until you can afford something esle. Wheels/brakes/tires are things that you shouldn't mess around with.

yep... mine is (i just don't own it), sunroof, no ac, 5 speed, waffles, vynyl

Wow this turned into something crazy. I didnt really like the wheels, just was thinking of an inexpensive alternative for the 4x110 guys. Anyway. Thanks for the thoughts though. I didnt really do the math on the load capacity.