topbliss

about 8-9 lbs a gallon..

metroplex

87 unleaded weighs about 6.5+ lb per gallon.

Ministang

That's the weight per gallon I was basing my figures off of after researching what gasoline weighs from a variety of different sources. There can be some variation, but it is practically always between 6 and 7 lbs per gallon.

metroplex

I checked Exxon Mobil's MSDS for 87 unleaded several years ago and the specific gravity for their gasoline was about 6.67+ lb per gal (as you mentioned that it does vary somewhat).

m05fastbackGT

But keep in my Keith, that all 2007-08 models, gained 127lbs. due to chassis strengthening in order to handle the GT500's SC 5.4 500HP 4v.

However if you subtract 127lbs. from Shawn's 3530lb curb weight. My 2005 GT. should have a curb weight of 3403 lbs.

Five Oh Brian

For some reason, Ford says the GT automatics lost 8 lbs in 2007, and just the GT manuals gained 127 lbs. Anybody know how that's possible?

Ministang

I'm a little skeptical of that 127 lb weight gain from 2006-2007. The numbers Five Oh Brian posted from Ford were the shipping weights, which Ford says are the curb weights minus 131 lbs for the 4.6L Mustangs. It would be interesting to see two similarly optioned Mustangs from before and after the weight gain on the same scales to see what the real world difference is.

m05fastbackGT

Keith, are you sure the numbers that Brian posted from the Ford sourcebook, were the shipping weights ?

Because according to what Brian told me, the 3315lb weight listed on my title, is the shipping weight.

However the numbers that Brian posted from Ford, claim that a 2005-06 GT coupe with manual trans weighs 3356 lbs.

I suppose we need to find out from Brian, as to whether or not. The numbers he posted from the Ford sourcebook, are curb weight or shipping weight.

Ministang

The numbers I have for 2005 Mustangs are 3356 lbs for shipping weight and 3487 lbs for curb weight (manual trans) for a deluxe GT and 3375 lbs and 3506 lbs for a premium GT.

If you want the PDF file of the weight chart I have for 2005 Mustangs, I can email it to you, a friend sent it to me a few years ago. It lists the weights of each model, and breaks down the individual weights of the different options.

m05fastbackGT

Keith, I'll send you a PM with my e-mail address. In the meantime, thanks in advance.



Rocky

Five Oh Brian

Rocky & Keith, I double checked the weights that I quoted from the Ford Source Books for 2005-2008 Mustang GT weights (see post #5 above), and Ford labeled them as "Base Model Curb Weights."

The shipping weight that is printed on the invoice of each vehicle is not really for that specific car, but the non-optioned base model of that trim (i.e. GT Deluxe Coupe Manual). For example, we get a lot of Mustang GT automatic coupes with a ton of different options on each, yet every invoice says the exact same shipping weight even though those Mustangs each weigh dozens of pounds apart from each other. The shipping weight on every 2008 Mustang GT automatic coupe invoice (deluxe model and premium model, FYI) that I looked at today was 3,398 lbs, but the Ford Source Book says the Base Model Curb Weight is 3,532 lbs (134 lb difference from shipping to curb weights).

Keith - just curious where your .pdf file is from? Not doubting it, just curious who the source of your info was. The info that I've provided is not nearly as detailed as what you have, but I've tripled checked that it is accurate as provided by Ford Motor Company.

Ministang

The 2-page pdf file I have was sent to me by a friend a couple of years ago. I wasn't sure of its origins, but I did some searching and discovered it was part of the 2005 "Motor Vehicle Manufacturers Specifications" manual, and found it is available online at:

www.classicmustangshop.com/2005mustang_specs.pdf

The 2 pages I have had and were referencing are pages 26 and 27. Maybe you are familiar with this and may be able to give some more insight on its accuracy.

polodinks

sorry for going off topic but ministang i noticed in your signature you own a vapor silver mustang...... post up pics in the vapor thread soon we need more vapor guys in there

Five Oh Brian

I've never seen that document before, but see that it was written by a thrid party (AAM). Looks to be based on preliminary data from the fall of 2004. I couldn't help but notice in the weights of various options that the automatic transmission is listed to add just 40 lbs total, yet Ford's documents put an automatic GT at 184 lbs more than a manual GT back in 2005. That's a big disparity between AAM's data and Ford Motor Company's data. My guess is that some data may have changed after AAM wrote that document, so I would tend to put more stake in Ford's data (albeit, not as detailed as AAM's report).

Ford usually doesn't provide us dealers with specific weights for different options on passenger cars, but we do get them for full-size trucks so that we can calculate payload & towing capabilities correctly for customers.

Ministang

I did find another document online that lists curb weights for 2007 Mustangs (this one appears to be from Ford......correct me if I'm wrong), and there seems to be a disparity in the weights it lists for manual vs auto equipped Mustangs. For GT coupes, it shows the auto Mustang as weighing 184 lbs more (3540 vs 3356 lbs) but the GT convertible only getting a 45 lb weight penalty for the auto trans (3657 vs 3612 lbs):

www.shnack.com/docs/2007.key_features.pdf

I did some more searching through the 2005 MVMS manual I posted earlier, and it shows that the Tremec 3650 manual trans weighs 122.5 lbs, while the 5R55S auto trans weighs 174 lbs, a difference of a little over 50 lbs. Anyone actually weighed their transmission? A weight difference of 184 lbs does seem a little high to me, but I've been wrong before.

cobalt

Guys, this issue has been driving me batty, I have an 06" premium package coupe with all options with shaker 500(no subwoofer). What should my curb weight be??? Please help, Thank you, Erik

Five Oh Brian

With all the mods you've done (big wheels and blower, especially), your car weighs more than it did from the factory anyway. However, it should have originally weighed about 3,400 lbs, give or take a few.

Ministang

The best way to find out what any particular car weighs, is to go and weigh that particular car. Odds are there is somewhere near you with scales where you can weigh your car, some places with scales are grain elevators, salvage yards, recycling centers, moving companies, race shops, race tracks, etc.

I have my own corner scales so I can find out exactly what my cars weigh, and not depend on educated guesses or documentation which may or may not be correct. Anyone in the central Ohio area is welcome to come by and use my scales to weigh their car, I've weighed a number of friend's Mustangs on my scales, but the only S197 so far has been my own.

cobalt

Thanks guys. I have a very clear idea and/or have weighed all my add ons and direct replacement aftermarket parts, so that list is accurate, I've just never seen a consistant weight listed for my car in the magazines and Ford materials for my car 06" Mustang GT coupe premium pkg minus subwoofer.

I saw a very exact listing of the 06' coupe in a magazine article saying the 06" premium package coupes should range from 3484-3515, so minus the sub woofer (18lbs or so) I've figured that my starting curb weight was about 3495, and I've added and subtracted aftermarket weights from their.

My supercharger install with larger intercooler and coolant, minus the stock parts that come off, is an added 84lbs or so, my heavier wheels are 26lbs front, 27lbs rear, so that's an added 10lbs from my 24lb Ford 64w's that came with the car.

Also subtracting weight for direct replacement aftermarket suspension parts (all weighed compared to stock) and then adding the weight of added suspension parts such as STB, G-trac bar, Shock tower brace, welded very light Steeda chasis braces(12lbs) plus a few others.

So my math from 3495lbs up has always put me at about 3625lbs total.

But now, if you guys agree that my car actual listed curb weight starts at about 3400lbs, that's great news!!! That puts me at about 3530lbs with my current mods.

At 474rwhp (545 flywheel) with a weight of 3530lbs or so, and good traction, no wonder I've been smoking these heavier coupes, the dodges, the Mercedes, BMW's, C-6's, Audi's. All the competition is either heavier or less powerful. Plus my car corners like a dream. This explains a lot.
Anyone, please confirm you believe my starting weight should be about 3400lbs for an 06" premium pkg without subwoofer. Thank you very much guys, Erik

Five Oh Brian

I was only guesstimating about 3,400 lbs (+/-), and not suggesting that it was 3,400 lbs exactly.

I always weigh my cars on our local Department of Transportation weigh stations along Interstate 5 where the trucks have to stop to get weighed. I go after hours when they're closed. The scales are still on, but there's no trucks to get in the way of. The state of Washington claims the truck scales are accurate to within 20 lbs (and they only read in 20 lb increments).

I suspect you could go to the truck scales along any stretch of interstate freeway anywhere in the country and weigh your car. Then you can stop wondering what your car weighs and know for sure.