kopbet89c4

The absolute curb weight of a base 89 C4 coupe is 3238 lbs, plus or minus 10 lbs. My Vette happens to be just that, except it has the RPO C68 digital climate control and the 3.07 gear, whatever that RPO code is… Curb weight is defined as the weight of a base model car fully ready to go with all fluids, including a full tank of gas. This information was taken from idavette.net and is consistent with other sources.

The following items are what I currently have excluded/changed/modified of/from my Vette:

(Weight of the items has been underestimated and rounded down for conservative and anti-exaggerating reasons)

Gasoline weighs about 6 lbs per gallon, about 120 lbs with a full tank of gas. Let’s say you have 5 gallons in your tank. – 90 lbs

Spare tire & assembly – 50 lbs

Passenger seat - 40 lbs

Lighter 16” Camaro wheels – 40 lbs

Water pump Frisbee – 10 lbs

Smog pump assembly and associated ducting – 10 lbs

Miniram weight difference vs. the stock TPI intake – 10 lbs

Lighter, less clunky and cluttery stock exhaust replaced with catless true dual exhaust – 10 lbs

Power to manual seat rails – 10 lbs

Removal of cruise control – 5 lbs

Stock plastic intake ducting from 85-89 Vettes – 5 lbs

Fiberglass top to glass top – 5 lbs

Removal of alternator bracket and smog pump bracket (I have an alternator relocation kit/smog pump bypass kit and shorter belt from forum member redrose) – 3 lbs

Complete removal of EVAP system – 2 lbs

This is about 290 lbs worth of weight savings!

So that means the weight of my car without me is 2948 lbs, plus or minus 10 lbs.
With the driver (me) weighing in at 140 lbs, this makes my Vette weigh in at about 3088 lbs. Just a heads up on how light you can really make your TPI Vettes with minimal effort.

ps: I hope my math is correct...

86VX1

why don't you go to your nearest landfill (if you go here it's free) and have the car weighed, and see how close you really come to the number you calculated.

Road Agent

Driver seat, dash, door panels, carpet, windshield, rear hatch?

kopbet89c4

I remember weighing in my car at a truck weigh station in early 2005 and with me in it, the whole car weighed in at 3329 lbs + a full tank of gas, about a couple days before I was gonna drag race it for the first time. If you subtract my weight then, 120 lbs the car would have weighed in at 3209 lbs. This was when the car was bone stock, untouched, unmolested, except for the fact that some owner before me already gutted the cats.

Red Tornado

you have GOT to be kidding.

say it ain't so.

kopbet89c4

I was 120 lbs back then. I'm about 140 lbs now so now that is the driver weight factor.

Red Tornado

not sure i follow. 140 is still far below the average male. it about on par with the average female, no scratch that, its still somewhat less than most adult women on the planet.

good luck on your car-gutting activities in the name of the holy tenth. that vette will be a candidate for the pileheap when you're done. sorry to say that.

Fuzzy Dice

This site show the curb weight of the 89 coupe to be 3330 lbs stock....btw, you were closer than me on mine... my 93 was 3317 lbs. stock...

myblue91

If you remove the old Bose and Controller that's probably good for another 15lbs.!! It weighs alot.

kopbet89c4

Where is the website that says this? Where did that figure come from? I know most early C4s have a curb weight of about 3250 lbs...

kopbet89c4

Nah, I plan on keeping this car forever. This is the only car I have ever owned for almost 3 years in a row. In the event I ever get tired of EFI, I'll switch over to carb. Right now, I'm having a blast burning my own chips for my own tunes for my own car's needs. Car runs great and I drive to and from work about 50-60 miles a day depending on the route I choose. Now that's something to be proud of. Who needs to pay for a prom burning/dyno tuning service when me and a few other forum members do it themselves? Glad to see that sometimes its better to change what GM says always should be.

cv67

Man just leave the car intact and put some more power to it. You wont gain much from 200 lbs or so but you will have a kobbledVette that nobody else will want. Heck, just make it a track only car for that matter. .

kopbet89c4

No, more like a street/strip car. Its a very reliable daily driver. Having less weight on the car probably would save gas mileage as well. Oh, and trust me, there's gonna be a lot more power from kobbledvette pretty soon. I might have a kobbledvette, but hey, whatever floats your boat. I'm not gonna be selling it anytime soon. I just don't like having all that extra clutter around that I don't ever use, e.g. emissions garbage. Hell, who needs clean air anyway when we pollute the air each time we fart at least 50 times a day? Ladies, that includes you! Plus, I'm not moving to any Cali-wannabe, emissions testing area anytime soon. There's an article about Florida ending all emissions testing stations because it will save us taxpayers about $52 million a year!!! Good! That is a lot less of my tax dollars going to some welfare recipient living in some gov. funded shack out there...

Mojave

I weighed my car a few weeks ago: 2930 with 1/2 tank of gas (me not in it).

Go to http://www.mowhineracing.com for more info.

Blah, the site is down for some reason....

Aurora40

You can also drain out the windshield washer fluid and remove the container and pump. You can keep other fluids like coolant and oil just above the "low" levels. Those two-piece brake rotors seem to cut weight also (Baer Eradispeed I believe). And the security shade. You could probably remove the carpeting, or the padding behind it, and lose some weight. That seems kind of extreme, but then again, you took your passenger seat out...

That's pretty big weight savings on the wheels, though, 10 lbs per corner. I thought the magnesium Dymags were in that ballpark of weight savings over the stock 17" wheels.

kopbet89c4

I was thinking about removing the padding and just placing the original carpet over the interior. Dunno how much weight that would save though...

I took the passenger seat out because there is a lot more stuff I can transfer to and from work. Seems like I have about twice the cargo capacity without it being there.

Jerris

Why would anyone weigh their car without them in it. I cant race, drive or cruise the street without you in it.

Caboboy

I need to drop that amount just to get back to stock weight if I'm in the car

Mojave

Because the numbers sound way better when you're not in it. I can add my weight to it, but 2930 sounds a lot better than 3255.

F1Fan

There are some thoughts you just keep to yourself out of consideration of others