Most accurate site for muscle car weights

[EZ Nova]

As I said in the ZL-1 Vette thread, we re looking at running some races for muscle cars. So looking to know where is the most accurate weights for all makes that we can look up and maybe use as guidelines for each car?

We do not want a '69 BB Nova to have to weight as much as a '69 Chevelle or Impala. There was a reason why some cars were better "streetfighters" than others. Like M-code '69 Darts too.

Thanks in advance, John

[Lee Stewart]

https://www.automobile-catalog.com/

Most but not all. They use Curb weight which means all fluids installed and a full tank of gas

[Lee Stewart]

Here is an example" 1969 Z/28

https://i.postimg.cc/GtLR8B4y/screenshot-6769.png (https://postimages.cc/)

Second Page:

https://www.automobile-catalog.com/auta_details1.php

[EZ Nova]

Thanks Lee. I was looking at that site once you posted it in the Nova thread.

[Sean]

Sounds like a neat deal! Just be prepared to listen to the whining about the rules and have thick skin. Long time racer here and let me tell you be firm and fair.

[John Brown]

nhraracer.com

Look in the stock car classification guide area for shipping weights.

[RobR]

Years ago we would use the NADA Guide to get the cars shipping weight.

[EZ Nova]

Thanks guys. Maybe get all 3 and take an average of 4sp weights for that car. NOt trying to figure each and every possible combo, but say a '69 BB Camaro, it would be based of BB 4 sp and that is it's weight.

[EZ Nova]

Sounds like a neat deal! Just be prepared to listen to the whining about the rules and have thick skin. Long time racer here and let me tell you be firm and fair.

Not going to be many rules. Actually pretty simple.

1. Weight for that car (example '69 BB Nova 4sp must weigh say 3300 lbs)
2. Must run OEM steel wheel, like a GM Rally wheel. Max 15" diameter.
3. Must run dual plane intake. Weight break for OEM dual plane.
4. No power adders of any kind, Nitrous, turbo, supercharger or nitro.

Tires were looking at up to 275/60R15 or 9" slick by sidewall designation.

The intake will take a lot of things out of play. Heads, carb engine size etc. You can only get so much through the dual plane intakes, it won't matter if it's a 706 or SR20 heads. You can port the intake, but not move the ports around pass where a gasket match will be the rule to a know standard.

This is going to be some executions, like if there isn't a readily available dual plane for that engine, and where to put "special" cars like ZL-1's. Stock style repop rims and intakes are cheap and we feel it's better for the class. EFI like FiTech/Sniper will be allowed, but not port injection with fuel rail conversions.

[442w30]

Find AMA Spec sheets. You can find a couple here:

https://catalog.hathitrust.org/Record/100573546

https://core.ac.uk/search?q=%22ama%20specifications%22

[L78racer]

results from Pure Stock Drags have weights (with driver) for all competitor cars.

http://psmcdr.com/17.html

[EZ Nova]

results from Pure Stock Drags have weights (with driver) for all competitor cars.

http://psmcdr.com/17.html

Thanks for that, but are the weight there legit? I'm looking at Sept 2017 results and has:

Tony Ragla 1969 Nova SS396/375Hp 4sp @ 3538
Victoria Waligora 1969 Camaro SS396/375 3A @ 3496

So the first time I have seen a similar option Camaro WITH AUTO (T400) being lighter than a Nova with a 4 sp.

[x33rs]

That's the issue you run into when trying to compare published weights with actual scale weights. I'm not sure what to suggest for you when trying to put together a race class based on weights that are published. Without physically putting the cars on the scales they can be all over the place, giving some cars of same make and model a slight advantage if you try to put them in a certain weight class.

I have my bird setup to run pure stock but haven't made any attempt to lighten it. A 70 formula RAIII with PS and PDB, 400 turbo, as the only weight adding options. Scales at 3600 lbs. exactly without driver and a full tank of gas (spare removed), and that was on an NHRA cert scale just last month at the races. I'd be interested in seeing what a published weight for this car is if you have a source you've decided on?

I've scaled everything I own, just for my own purposes to compare times with others. I've been surprised at what some of these old muscle cars weigh.

[Keith Seymore]

I've scaled everything I own, just for my own purposes to compare times with others. I've been surprised at what some of these old muscle cars weigh.

Yep.

I didn't want to be a wet rag but I've been weighing '65 A bodies for 40 years and they are all over the place. Option content makes a huge difference and published weights are seemingly from a random number generator.

I would suggest the PSMCD data is the most real world info available.

K

[x33rs]

Yep.

I didn't want to be a wet rag but I've been weighing '65 A bodies for 40 years and they are all over the place. Option content makes a huge difference and published weights are seemingly from a random number generator.

I would suggest the PSMCD data is the most real world info available.

K

Agree.

I scaled our 69 RS Z/28. RS adds some weight but I wouldn't think it would be a ton. I was surprised when it weighed 3472 lbs. That's with the spare in place and 3/4 tank of gas, no driver. Quite a bit heavier than I thought it would be, especially when people I talk to act like they are 3200 lbs cars. It's only 128 lbs lighter than my 70 bird, which is quite a bit bigger physically when you park them side by side.
My 72 SS 454 chevelle, PS and PDB, and factory AC scales 3,908 lbs, without the spare and a full tank of gas. 4,108 lbs. with me in it. I either need to quit eating cheese burgers or find some weight to take out of the car, lol.

[Lee Stewart]

That's the issue you run into when trying to compare published weights with actual scale weights. I'm not sure what to suggest for you when trying to put together a race class based on weights that are published. Without physically putting the cars on the scales they can be all over the place, giving some cars of same make and model a slight advantage if you try to put them in a certain weight class.

I have my bird setup to run pure stock but haven't made any attempt to lighten it. A 70 formula RAIII with PS and PDB, 400 turbo, as the only weight adding options. Scales at 3600 lbs. exactly without driver and a full tank of gas (spare removed), and that was on an NHRA cert scale just last month at the races. I'd be interested in seeing what a published weight for this car is if you have a source you've decided on?

I've scaled everything I own, just for my own purposes to compare times with others. I've been surprised at what some of these old muscle cars weigh.

3585

http://www.lov2xlr8.no/brochures/pontiac/70pf/bilder/11.jpg

[x33rs]

Thanks Lee,

I had to go back and look at my notes on the bird because I've scaled it several times over the years. The car with it's optional rally II wheels installed scaled 3650 lbs. The 3600 I referred to was just last month at the track where I installed a set of aluminum wheels from another car to make some runs. Scaled the car right after the finish line and it was 3600 with 3/4 tank of gas, spare tire removed for these runs. That's the lightest the car has ever been. Over the years I have always raced the car with rallys, and with me in it the race weight hovers around 3850 give or take depending on how much gas is in it.

[442w30]

In this link, you can find the AMA Specifications for the 1969 Camaro from the GM Heritage Center:

https://www.gmheritagecenter.com/docs/gm-heritage-archive/vehicle-information-kits/Camaro/1969-Chevrolet-Camaro.pdf

On page 55, it shows vehicle weights plus options. Curb weight with the V8 hardtop is 3135.

The Z28 package adds 83 lbs.
The Z22 RS package adds 27.
M20 adds 16, while the M21/M22 adds 4 (yes, both add 1/4 of what the M20 adds)
Front disc brakes add 26.

Following this page are the AMA specs. It shows the Z/28 as having a curb weight of 3296 lbs.
Same document shows front disc brakes adds 41, plus 11 for power.

[x33rs]

In this link, you can find the AMA Specifications for the 1969 Camaro from the GM Heritage Center:

https://www.gmheritagecenter.com/docs/gm-heritage-archive/vehicle-information-kits/Camaro/1969-Chevrolet-Camaro.pdf

On page 55, it shows vehicle weights plus options. Curb weight with the V8 hardtop is 3135.

The Z28 package adds 83 lbs.
The Z22 RS package adds 27.
M20 adds 16, while the M21/M22 adds 4 (yes, both add 1/4 of what the M20 adds)
Front disc brakes add 26.

Following this page are the AMA specs. It shows the Z/28 as having a curb weight of 3296 lbs.
Same document shows front disc brakes adds 41, plus 11 for power.

So that gets back to what I've always seemed to find with my own cars, that the published weights always seem to be a bit on the light side.

Looking over the first set of stats you provide, the Z/28 package adds weight, which would include disc brakes. So one could assume you wouldn't add it twice as the stats might suggest. So ignoring the 26 lbs. and adding 83 lbs. for Z/28 and another 27 lbs. for the RS package we still only come up with 3245 lbs. Which is what I always hear people say. Not even close to what my RS Z weighs at 3472 lbs. Has power steering but I don't see that adding more than another 10-15 lbs.

Then look at the AMA specs and they more than double the disc brake weight. ??? Not sure what to believe since these cars, for me anyway, and being on an actual scale, always seem to swing all over the place.

Not trying to spoil the party and I hope EZ Nova finds a way to get these racing classes off the ground. Just pointing out what you might run into.