Post your corner weight scale pics!
 

Since I just did mine, and no thread seems to document weight, I thought it would be a good idea.

93 1.6l, turbocharger setup, still had ---- in the trunk/passenger footwell. This is without me in it (cross goes to 50.2% with me in it).


https://www.miataturbo.net/attachmen...ine=1333122774

https://www.miataturbo.net/attachmen...ine=1333377975

'94 track-only, gutted. Stock body work.

https://www.miataturbo.net/attachmen...ine=1333377975

https://www.miataturbo.net/attachmen...ine=1333377975

180 lbs of me.
Full interior. Boss frog Clearview Max rollbar.

Wow, big differences(500 lbs) from a full scale NB and a stripped NA. If I can get mine under 2300 with me in it I'll be happy. Mine's a NA with no carpet(roll in bedliner) no gauges(Raceapak) Radio, door speakers, console, stripped wiring harness, custom engine bay harness(tucked) headlight motor delete, anythng unnecessary engine bay delete, no A/C and no PS carbon trunk(you'd be surprised how heave the stock trunk is. 10lb battery, V8R control arms, carbon driveshaft tein mono-flex. Any guess on where I'll be as far as weight? I cant think of anything else that will add/reduce weight. I'm about 165-170

Don't forget to include driver weight and fuel.

My `97 (not very) CSP car was 2380, 150lb driver and 3/4 tank of fuel.

Full interior, swapped to a `90 dash, no emissions, no AC, no PS, no radio/speakers, race seats/6 points, a roll bar, no soft top and a hard top.

Gutted interior, full doors/power windows, hardtop, half a tank of fuel, OEM jack and small stuff in trunk. Drivers seat/floor area ballasted with ~75kg of lead. Total weight is 1060kg, or ~2340lbs. More weight to come out, both of the car and me ;)

This was after a whole day of taking our time setting ride height, alignment and corner weighing. Couldn't be happier for €150 :)

A fun test to see what 20lbs of extra lead in the battery well could do for the balance.
https://www.miataturbo.net/attachmen...1&d=1333466923
https://www.miataturbo.net/attachmen...0&d=1333466708
Pretty good numbers (except the porky weight due to 3/4 tank).

Class change since then so it's down to 1060kg now (no pass seat and can run all the way down to dry tank).

F20C car, with no set up work, with 65kg/145lb driver and 3/4 tank of fuel. Fully trimmed interior. Lots of potential for improvement after corner weighting!

Figures in pounds:
Total 2361
LF 567.5 RF 629.5
LR 562 RR 602



https://www.miataturbo.net/attachmen...ine=1361095260

Recently installed some new coilovers. Corner balance was done in my gravel drive, so while it isn't perfect it is probably as close as it could get with that setup. This is with me in it and a few gallons gas.

https://www.miataturbo.net/attachmen...ine=1361106632

robert

Great fucking pic dude, we can almost read it. :giggle:

I've removed one or two things. This was a test weight, no balancing actually done yet. Yes this is in pounds.

Took out one or two things, what engine and trans.

1.6L motor/trans. 1993 chassis.

Edit: I guess I should elaborate. This is just about the minimum you can go and still be able to drive it without replacing parts for lighter weight versions. I think I can pull another 15-20 lbs out without trying too hard either.

Gutted, 1.6L drivetrain(motor,trans, diff),
lightweight 13x7" wheels,
front and rear bumper covers only.
headlight covers,but no lights or rear finish pane.
Partially gutted rear decklid(need another set of hood pins to remove the heavy hinges)
Hood latch assembly removed, stock hood otherwise.
rewired for MS1 and stock 1.6L alternator, lawn and garden battery($20) in stock location.
No windshield or frame.
Kirkey seat on stock NB slider. (no pass. seat.)
Partially gutted pass. door. Drives door still retains it's door bar and upper inner sill bar(heavy).

Note: No bar/cage (Yet)

I do believe he was referring to what you removed, implying that you have a very light weight for a car.

Yep, hence I've edited my previous post.

I would like to see pics of your car

I don't corner weight, but I do have the over all weight of me car.

Full interior w/ aluminum racing driver seat, passenger seat stock, full MiataCage and a half tank--2020 lbs
https://www.miataturbo.net/attachmen...ine=1361345849

No fucking way!
Is that without you in the car?
Me thinks that scale needs calibrated ....

With a cage, that's pretty darn light(my previous 94 A package was 2250 bone stock since it was a stock class autocrosser). What else have you done with it?


My car isn't anything special, I've just been removing everything that doesn't make it stop, go or turn.

Is that with AC? How full was the gas tank? Assuming you weren't in the car? I'm interested to see what mine weighs. It seems like everytime I find something to remove, I've got 3 more things to add.

Don't be jealous, bitches.

https://www.miataturbo.net/attachmen...ine=1361379273

With A/C, no driver, fighting weight(needle on E), Semi-hollow spoke wheels, 225/xx/14 v710s, RB hollow bar (NA edition), no spare tire or jack.

specific enough for ya? :)

re-occurring theme. Keep the battery in the RR :)

I do not sit in the car when I weigh it since I already know what I weigh

Mine as I drove it back from Pikes Peak where I bought it from. I weighed it with a full tank and some clothes and it weighed 2090, so when I got home I took out my jack/spare tire

No picture, but another data point since I recently dug out the sheet:

Corner weights (with 158 lb driver) were:
1994 with very minimal weight reduction/weight addition. That weight was probably 3/4 of a tank of fuel, maybe more. MSN Autos says stock spec for my car was ballpark 2350 so my weight sounds about right.

AC, power steering (with cooler), 50 pounds of insulation, front skid plate, 3 inch radiator core, 1 gallon surge tank, heavy Taurus fan, and a half tank of fuel. Add 220 or so for me and 105 for her.

90 NA M45 AC PS 200lb driver
https://www.miataturbo.net/attachmen...ine=1369349204
https://www.miataturbo.net/attachmen...ine=1369349204
https://www.miataturbo.net/attachmen...ine=1369349204

https://www.miataturbo.net/attachmen...ine=1369354075

That's without me in it. It goes to 50.02% cross with me in the car.

Bummer about the flash but the front left was 613 too. :party:

https://www.miataturbo.net/attachmen...ine=1369371471

I guess I should update this with a finalized weight. This is before I actually corner weighted the car, but in fighting trim, no driver.

99 base sport pkg w/PS, no trunk junk, 2 gal of gas, no driver

https://www.miataturbo.net/attachmen...ine=1369470040

Wow, tpwalsh. It's really wild to see the spread in weights in this thread, from the same basic chassis.

tpwalsh,

I assume this is your DP AutoX car, amazing how light you can get the 1.6L w/o expensive stuff like fuel cell, body kit,...

Nice re-location of your gauge cluster :-)

I wish I had a pic of the corner weight on my car, it's 1924 lbs wet, including 40 lbs ballast, over 50% rear wt biased. Unfortunately It's corner-weighted for all 255 lbs of me :-( (I'll add another 25 lbs ballast when I finally start using Avon slicks).

Not that amazing I don't think, strip it to a bare frame, then add back only what you need. suspension, motor, trans, diff, PPF, roll bar, seat. The biggest pain in that theory is the wiring. It took me many hours to get the motor and alternator to run on my custom harness. Also remember I'm running a HardDog bar, and not a full cage(it's in the plans), which is where some of your weight comes from. I'm sure your cage weighs more than 42 lbs.

:) Ya, I couldn't figure out where to put the gauge cluster, it just didn't want to fit anywhere. When I thought about flipping it upside down, suddenly it had a perfect spot. 20 minutes, and a fabbed up bracket later, it fit perfectly. :)

25lbs when going to Avons? Why?

'97 with full interior, aftermarket stereo, HD roll bar, 1/2 tank gas, 15x9 6ULs with 225/45's, no trunk stuff and my fat ass (200lbs) in the seat.

https://www.miataturbo.net/attachmen...ine=1369599673

18 lbs off vs. A6's,
7 lbs for less fuel.

Did you get much from undercoating? I wonder if it's true you can get 30 lbs from acid dipping a bare tub, and a re-paint. Seems like a good thing to do if you're stripping to bare tub.

I didn't realize that the Avons were that much lighter than the A6's.

I haven't touched the undercoating yet. It wouldn't surprise me if it's 30+ pounds.

Ask Emilio, he's done it. My recollection was that it took at least that much off.

IIRC, the SM guys say that a very detailed cleaning gets you something like 13-15 pounds. Ive thought about taking mine off, but it seems like a ton of work for not much gain when there are other inroads to be made elsewhere.

Also, Id love to put a nice 30lb lead block over my RR wheel first.

I forgot that he did it. There's a guy in TX who also stripped his car, and posted photos here. I can't remember his name right now. I don't think it's miata_racer. If I remember right he theorized that a Prod/Prepared car can get down to 14xx precage, and had some numbers to back that up. Unless my scales are way off I can completely see it. There's still a ton of weight that can be pulled out. Heavy fenders, fuel tank, control arms, brakes, clutch, transmission,undercoating and intake manifold are all on my list to address.

Attachment 185390

https://www.miataturbo.net/attachmen...ine=1370114479

1990 w/ ITB FE3, 6 speed, FC rearend, cage and me (195lbs)

Back on the scales next week after the recent reductions/additions should be close to the same weight just different distribution that will need to be addressed.

I know after AMS acid dipping there Evo X, it lost 38 lbs. Its just not the coating, but it removes a microscopic amount of steel form the hole body. I did the math on if the body was made of Carbon.

Factory NA Shell...................466 lbs
Carbon NA Shell...................Approx 82 lbs

why is my car so front heavy? autocross setup no roll bar etc. Engine is mounted 1.5" aft of stock location as well.


https://www.miataturbo.net/attachmen...ine=1421123452

What radiator, front brakes, and what have you done for weight reduction? That's basically stock weight isn't it?

That is with 250 lb driver so 2085 very light on fuel. heavy godspeed radiator and Vibrant intercooler Id guess those two items are at least 25lbs heavier than stock. turbo system is not really that light eather. long runner manifold is like 18lbs. no top, 14 lb seats. brakes are 11.75" rotors with dynapro calipers (mini kit) and 11.44" rears. still lighter than stock.

180 lb driver
+/- full tank of gas
~2300lbs without driver
52/48 split

I've since removed around 100 lbs of plastic bumpers and misc. sound deadening.

No fancy digital scale photo. Not bad for having a full interior still.

https://www.miataturbo.net/attachmen...ine=1421128367

Stripped, Intercooled Rotrex, caged track car with 1/2 tank of fuel.
Roof, wing and 10" wheels with 225 NT01's.

https://www.miataturbo.net/attachmen...ine=1421135809

Madness is a very good name for that car. I hope to take a ride in it some day. Sub 2k with that setup has to be a joy.

Didn't realize that was with driver. What is your seat position like? We extended our controls (5'10" and 5'6" drivers) and were able to move our driving position back about 5". Not sure if that's legal for you. Definitely lighter seats are available. One piece or two piece rotors? I just purchased 11.75 rotors and there is a range from about 9lbs to 15lbs per side. Also, looks like you have some room to corner jack that thing a little bit for better balance.

also has plywood splitter that sticks 6" forward of the bumper. Stock headlights. Driver is getting moved back yet like 2". its a bit heavier on the front for an autocross car because I plan on retaining a cooling module combo that works when I take this beast to the track to run NASSA TT. It works as it is now for 20-30 minute track sessions with the boost turned up making well over 300 hp and owning several track records. maybe I can find one that works good that is lighter but I sort of doubt what some of the other competitive dedicated SSM cars are running would work. In TT form it has a lot more weight added to the back however, roll bar, rear swaybar, hard top, accusump, mounted to an additional rear subframe brace, ends up being like 180 lbs added all aft of the centerline. minimum competition weight for Autocross is 2080 without driver and for TT2 formula and my power I need ~2500 with driver.

298whp of madness :-)

No passengers seat. That's where the fuel tank lives.

I'm lighter with more power and currently have a passenger seat. :)

WI think 180A of weight in drivers seat for corner weighting and 1/2 tank.

https://www.miataturbo.net/attachmen...1&d=1421287173

No driver.

https://www.miataturbo.net/attachmen...1&d=1421287173

interesting how weight distributions on miatas seems to vary between 51% and 55% to the front. seems like quite a swing.

Depends on where you've removed and added weight. Can't imagine any other reason.

track cars with a cage roll bar and more safety gear more fuel and less interior seem to be more balanced I guess. when I take all the track stuff out of my track car to convert to an autocross car it becomes nose heavy. Its faster around an autocross course even though it is nose heavy without all the track stuff though.

The corner weights are all static. I wonder where the weights fall most of the time during actual driving. Given the amount of time on the go pedal vs the brake I bet the balance is a lot better than what the scales say.

Semi gutted 91 with roll bar and hard top (naturally aspirated setup at the moment). 170 lb driver. Shooting to get the chassis under 2000lbs. That will be a stretch tho since I want to add more chassis stiffening mods.

with driver and 1/2 tank gas
https://www.miataturbo.net/attachmen...ine=1421552562

w/o driver and 1/2 tank gas
https://www.miataturbo.net/attachmen...ine=1421552562

cross weights (have alignment specs there just for quick reference)
https://www.miataturbo.net/attachmen...ine=1421552562