i recall on a website a stock fiero comes in around 2700lbs or somewhere in there but how much weight can be stripped off these cars?

That depends on how far you're willing to go with stripping, replacing parts, etc. What do you still want the car to do when you're done?

[This message has been edited by Fiero Brick (edited 01-16-2008).]

be a chassis with a engine basicly. looking for a track car nothing more

my goal would be to be around 2000 lbs with about a 450 lbs engine roughly.
figured id shot my goal numbers out there

Do it. Do it. Bacardi and Cola, do it!

With no trunk, no interior (no dash, no pillar covers, no headliner, no carpet, no speakers, etc), stock brakes (they're very light), all heat shields and engine bay insulation removed, stock wheels (14.5 lbs each), and a very short exhaust, my 1988 Fiero with a 3.4 DOHC V6 and Isuzu 5-speed weighed ~2660 lbs.
It was scaled on race scales at 2720 with the trunk and interior installed. I removed the trunk and weighed the metal to be 18 lbs. The interior carpet, dashboard, etc, was another 40-50lbs or so.
The 3.4 DOHC weighs ~450 lbs.
I don't think you can get down to 2000 lbs. There is not 700 lbs of useless stuff to remove after the point I was at.
Keep in mind a roll cage is going to add weight. You're also probably going to want bigger brakes. You'll certainly want wider wheels so you can mount better sized tires.

[This message has been edited by Steven Snyder (edited 01-17-2008).]

FYI. My 8 point cage weighs about 150 pounds.

how much do stock seats weigh?

and im guessing both trunk and hood are fiberglass?

i know with carbon fiber from fiber glass your probley olny gonna save about 20 lbs tops

what about gutting doors? no power anything, no stereo, no reinforcement in the doors and possibly lexan windows over stock glass
kinda sad that it dont seem like 2000 lbs - 2200 lbs is easy to get i guess the body panels and the cage the car was built from carry some weight

[This message has been edited by thecrew29999 (edited 01-17-2008).]

being it will be a track car, I expect the will be a cage - so yes - there is much to shed in the doors also.
for street use tho - keep them doors solid.

Ive never done it but the GTP alum. tubular frame will save a lot of weight from what i read. Someone who knows more please speak up and correct my ignorance.

quote Originally posted by linuxpowered88: Ive never done it but the GTP alum. tubular frame will save a lot of weight from what i read. Someone who knows more please speak up and correct my ignorance.

do you mean putting a GTP alum frame on a fiero ?

There was a prototype aluminum Fiero space frame built that saved something like 100 or 200 lbs. You can't get one anywhere. AFAIK it was crushed.

I have to keep certain things in my car such as windows per rules. Mine currently weighs 2542 with half a tank of gas and without me. After you get done with the easy stuff like the entire interior, 15 feet of exhaust parts ( I now have 4 feet total), and obvious shields trim etc, it becomes a lot harder to find extra weight to lose. I am looking to drop another 140# off my car if possible.

well since the weight dont seem to really drop much beyond 2500 2600 lbs im just gonna need to add a few more bolt ons haha

The Ac box, heatrer box is about 25 lbs. you can remove it and mount a block off plate there. Plus heater and ac lines to the front. A gallon of water is about 8 lbs. you have a good 1/2 gallon of water in those two lines from the engine to the heater core. 4 lbs

Check out http://www.8shark.com/12.htm

His goal is 1300 lbs. Of course, it is debatable how much Fiero is left.

If this is a track only car, start by gutting the doors, make them shells only. ( you have anti-intrusion bars on your roll cage, right? ) Save at least 100 lbs. If you're really serious, eliminate the jambs, strikers and hinges, both for the door and frame.

Then, get your hole saw out and go to work. Good places to stay away from: Steering column support, the steel parts around the windshield, brake M/C and clutch M/C. Good places to make holes: roof ( you have your roll bar installed, right? ) front inner fenders, anyplace else that is redundant. Areas that need reinforcement: Strut hats, lower front frame members. i know, i know, the front inner fenders are supposed to do that, but they are too weak to do a good job, If I could, I would weld a piece of roll bar from the front of the lower front frame member to the cross bar across the dash area, one on each side, and eliminate the inner fender completely.

Ok, take two peices of steel about a yard long each, wide enough to fit between your roll cage and the A pillar. Make holes in them to lighten and weld those suckers together, the down bar to the A pillar, that is. Tack what's left of your roof to the roll cage too.

This is a lot of trouble. Depending on class, why not just make a tube frame fiero?

wow hes got some project going on. 225 lbs engine with 200 hp and if he hits 1300 lbs its gonna be one fast machine

someone did a tube frame fiero appaerntly and it didnt give any substancial weight savings over the space frame. another guy did the measurements and found that the ecotec in an 88 notch weighed in at 2400, start gutting it out from there and you should be good to go.

quote Originally posted by megafreakindeth: someone did a tube frame fiero appaerntly and it didnt give any substancial weight savings over the space frame. another guy did the measurements and found that the ecotec in an 88 notch weighed in at 2400, start gutting it out from there and you should be good to go.

that being said what does a stock 2.8 weigh?

quote Originally posted by thecrew29999: that being said what does a stock 2.8 weigh?

Roughly 350-375lbs. About the same as the 4.9.

For some reason the 84-85 cars are much lighter then the later cars. I still have never heard a good reason why that is.

Here is a link to some engine and tranny weights...
http://fp.enter.net/~rockcrawl/weights.htm

Stock fiero weights and other specs...
http://home.xnet.com/~paulv/MajorSpecs.htm

More info (site recently updated), for fun...
http://en.wikipedia.org/wiki/Pontiac_Fiero

Once you have the weight down a much as you can from removing stuff you will have to start with lower weight bolt on parts to get anywhere near 2000lbs. These are the four I would start with to drop some serious weight.

Wheels ~10-45lbs depending on size
Alluminum knuckels/spindles ~40lbs
Make an alluminum engine cradle. There are none available yet for some strange reason?!? est. 40-70 lbs probably more
Tubular "A" arms and coilovers ~25-50lbs
High tensile race springs ~8-10 lbs

For what you can remove from the car...

Entire interior. I mean everything short of the gauges if you don't plan on replacing them. Carpet (light weight replacements available), dash, console, headliner (and sunroof possible or equiped), a-pillar trim, ect.
Trunk, including blower motor (if equiped) and tubing.
Remove front tub, everything heater related (and block off as stated above), headlight buckets (when possible), washer fluid tank (~6 lbs when full), steering stabilizer strut (84-87), and any wiring that is no longer used (this can add up fast). Anything non essential, bolted down or not. Seats will make a huge difference. Lightweight racing seats can save a ton especially if you can get away with only putting one back in.

jstricker has a fiero that weighs pretty close to that and would be a great person to talk to about it. Good luck and post you results if you can.

[This message has been edited by Fieroseverywhere (edited 01-17-2008).]

What was the basic weight of the car without any power options? When I ordered my 85 SE, I didnt order any options except for A/C. No power windows, power mirrors, or power door locks. Hard top, no sunroof.

Oh yeah, that's the other thing. My car had no options except AC. So there wasn't anything there to remove either....

quote Originally posted by ron768: What was the basic weight of the car without any power options? When I ordered my 85 SE, I didnt order any options except for A/C. No power windows, power mirrors, or power door locks. Hard top, no sunroof.

2.5 or V6? What tranny? Basic curb weight for an 85SE (my daily driver ) is supposedly around 2500-2650 depending on engine and tranny combo along with options. The 85GT's were still the lightest stock fiero with a V6 and even beat out the later released formula (base car with performance drivetrain) but options could be added to these and often increased the weight.

The 86-88GT bodywork and standard options knocked the fiero up into the 2650-2750 range but even the formula is heavier then the early cars. The SE's can be pretty heavy also since they were available with all options. Add a bigger engine and 4 speed auto tranny and some have broken the 3200 mark.

jesus 3200 lbs? hell id go with a different car in that case.

I knew I should have put in a disclaimer.
My weights were estimates to the best of my knowledge. I have no intention of building a track only car at this time.

Steve Snyder : I dont want to take the time to quote each and everything you said so here you go...

Stock 14's weigh in at 22lbs (See "High Performance Fieros" written by Robert Wagner). 15's come in just under at 21lbs. Motegi Tracklites (just off the top of my head) can weigh around 10lbs for a 15 and 12.5lbs for a 16. Thats 40-50 lbs there. If you go smaller then that and go with a true racing wheel you can get it down more.

At second glance 10 lbs per side may be a bit high. But I think 3-4 is a bit low.

What? I weighed a stock 84-87 cradle when I was going to send one out to someone. Weighed in at 90lbs so obviously the deal did not go through. The 88 cradle is probably lighter. Your right though 70 would be impossible unless is was pretty flimsy. Sorry should have been paying closer attention to what I was typing.

Tubular and coilovers together do save weight. See below.

A high tensile race spring will save weight just like a forged rim saves weight over a cast. The way the metal is formed and produced can make a world of difference. Not only is the outer diameter smaller but the wire diameter itself is smaller, not to mention that they will (should) be shorter. 2.5 lbs per spring is very doable.

I appoligize for my weights being off. Did the best I could.

I really don't want to argue about this but if you insist lets take it up through PM from now on out. I'd like to exchange ideas with you anyway. I think it could be fun. Later.

[This message has been edited by Fieroseverywhere (edited 01-17-2008).]

quote Originally posted by Fieroseverywhere: I really don't want to argue about this but if you insist lets take it up through PM from now on out.

How are other people supposed to know if you're wrong if I just PM you about it?