went to the truck stop near the local dragstrip. i filled up my fuel cell prior to getting my car weighed (i wasn't thinking about it).

so we have 15gal of gas + my portly 190lbs for a grand total of 2680lbs.

needless to say i am very happy, that means the car itself weighs around 2380's...wo0t!

pretty much everything has been removed, i have the HKS Ti exhuast, the T51 is a lot lighter than other turbo's, no speakers, no fuel tank...etc. the car is a spitting image of 'Resources' car, it's kinda creepy. i still need to knock off a few more lbs, i'm sure the roll cage and Ford rear end will add quite a bit.

 

That's a 400 lb drop from stock weight.

So what'd you remove besides speakers and fuel tank?

Resource even quoted similar figures but never itemized what he removed when people asked...

 

removed all the 'frills' like a/c, p/s, air pump, spare tire, some wiring...mostly the typical removal items, all that junk you dont need

the stock fuel tank was pretty heavy, i was surprised.

 

a/c, p/s, and a/p are about 70 lb total.
Spare tire maybe 35-45 lb with the tire and all of the jack stuff as well.

So we're up to 110 lb with 290 lb to go.

Stock seats?

Truck scale right?

 

i remember a post like this not too long ago, the guy weight his car at a couple of truck stops and they all came back that he was 2300lbs just about, then he put it on a more accurate scale and it came back to be 2600lbs. remember, to get it to 2300 lbs, you must have it pretty much stripped al the way to the frame, not have any accessories, and must probally back half the rear end and have lexan windows and have cf doors and a cf hatch. i highly doubt you are at 2300lbs

 

Thank you skunks.

Pressurized, I still think it's cool that you're heading in the direction of weight reduction.

 

maybe he got the engine out also

 

Well, hate to cast more doubt on the actual weight (as I think getting rid of excess heft is a good thing), but two things to consider: a truck scale is calibrated to weigh a vehicle in excess of 15-20,000 lbs. Its accuracy down to even several hundred pounds is highly questionable. Also, the scales will always be calibrated towards the light end, as it may mean the difference between a truck load being legal or not (and the trucking lobby in the U.S. is very powerful).

 

I'm all for going light, its just that you gotta remember that the lights FD's around that i have ever seen is 2300lbs (and there was only 1 at that) and it was not at all road legal. It takes more then a turbo and exhausts to drop 400-500 lbs out of a car!

 

spare tire and related jack components added up to 28 lbs total. I weighed it when I took it out.

Tim

 

I'd like to see what a truck scale would say a STOCK 3rd gen weighs... or any other STOCK car for that matter that you know the manufacturer-speced weight on... then you weigh your car... this would help ya figure out how well they are calibrated in the 0-4000 pound range.

Regards,
Brian

 

Don't good suspension shops have scaled to do corner-balancing?

I seem to remember someone weighing the car on one of those, and it came back very close to stock, like ~2700 lbs.

 

Hey guys,

I just weighed my car on my bathroom scale. It came out to 400 lb!

I knew that PS and A/C removal was worth it!!!

 

I had my car on the corner balance scales a while back. With a half tank of gas and no driver, it came in at 2730 pounds. More info at:
http://www.micromanx.com/goble/rx7/p...ht/weight.html

 

SCCA scales weigh my FD at 2796lbs with full tank. The truck scale down the road weighs it at 2800lbs. I've weighed 10+ FDs at that same scale, it can pick up the difference between a Touring, Base and R1. It also weighs just ME at 180lbs which is pretty close considering I weigh about 185-190lbs. Scale increment is 20lbs.

2380lbs is pretty light. Another R1 weighed at the same SCCA scales I weighed mine at came in at 2680lbs or so. The biggest difference between my car and his was the 13+ gal extra gas I had. Gas weighs 6lb/gal so my car would have been a lot closer to 2720lbs just without much gas.

 

You could try using a commercial scale ( a ton or two capacity) and weigh the different items which were removed. There is one at the factory I worked in, it was pretty accurate, down to a couple of pounds, and it was large enough to set most things on with a forklift, (although not a car, gracefully). Just a suggestion if you know someone with access to this kind of scale.

 

That is one seriously accurate truck scale. Most of the ones I've seen are off by at least 40 or so pounds when we've tried to weigh motorcycles on them (which are in the 400-550 pound range). IMO the one you have access to is out of the norm.

 

Do they still allow 3-trailer configurations in Oregon?

 

Yes.

 

If you are weighing a car on anything other than calibrated corner scales you are fooling yourself.

Like Kento said, a truck scale is not meant to be so accurate and it is calibrated to read weights in the tens of tons. An FD weighs less than 2 tons.

 

It seems a bunch of you are a bit jealous of his numbers. If your guys' theory is correct. you should go to a truck stop to weigh your car, and report back with numbers. Maybe you can be happy about your own car instead of ragging on this guy. nice numbers man, bet your car flys.

 

Like I said, I've done both, they are very close.

 

We're not jealous, most of us are more secure than that. We just know it's not possible. Resource posted about the exact same numbers in a thread a little while back. He then quietly corrected the numbers in another thread -- his car really weighed in the 2600 lb range, not 23xx.

Besides, no one was ragging on him, it was just pointed out that truck scales are not typically accurate in our weight range.

 

But which one do you Believe?

 

I'd love to weigh my car at the truck stop he went to.