RX-7 Weights Table

Below are RX-7 related weights posted from various RX-7 owners around the globe.  Some weights are duplicated due to large observed variance or disputes.  I've removed most of the wheel and tire weight data as much of this is obsolete or duplicated on other sites.

Item

Weight

Source

Year

Entire Car

PFS 3rd gen race car

2300

Jim LaBreck's car before 20B

2500

Jim LaBreck's est weight reduction before 20B

175-200

Sandy L.'s car without 50lb spare, with 15gal fuel

2520

Base model w/leather, cruise, no spare tire, 1/8th tank

2710

Pettit 3 rotor, 550 hp

2740

Sandy L.'s car no spare, a/c, or ps, 5 gal fuel

2740

Hung-Jen Hung's cornerbalanced car w/GC GAB Super R's

2743

CAR mag test for '99, probably a Mazda figure 2778

2778

Stock 93 base model, 3/8 tank gas

2780

93 RX7 2789 Mazda sales brochure

2789

93 Base with 1/4 tank fuel

2800

R1 2801

2801

Jeff Witzer's R1, no driver, 1/2 tank, stock wheels

2835

93 RX7

2840

Touring with manual transmission

2862

Gordon Monson's car

2870

93 Touring with Bose etc.

2870

Mazda Australia one-off prototype SPII

2910

Body/Interior

J&S Knock sensor complete w/ AF meter and uncut leads 2.6 "anonymous"

2.60

anonymous

NA

Front tow hooks with bolts 2.6

2.60

anonymous

NA

Rear tow hooks with bolts 3.1

3.10

anonymous

NA

99 front end reinforcement bar

7.00

Cody Oliver

1999

Fiberglass rear hatch

27.00

Adam S

NA

Rear hatch plasic

3.67

Gene Felber

2000

Rear trunk plastic

7.50

Gene Felber

2000

Rear luggage/bin separator panel (removable)

4.88

Gene Felber

2000

All glass in 3rd gen 50 Trev (NetBlazer)

50.00

Trev

1998

Fuel - full tank 21 gals @ 5.6 lbs/gal

118.00

NA

NA

Drilling out a pre-99 bumper insert, 2" circles

2.50

Jim LaBreck

1998

Fiberglass front bumper reinforcement and 6 mounting bolts

9.5

Paul Winter

2003

stock horns (2)

1

Paul Winter

2003

stainless 1/2" mesh screens from Pegasus for rad. inlet and oil cooler on PFS front bumper

1.5

Paul Winter

2003

Air bag, passenger side

6.00

Wade Lanham

2001

Air bag, driver'

3.00

Wade Lanham

2001

Hood, Stock aluminum

18.00

Yamaguchi text

1993

Seats, stock  without rails

28.00

Johnny Gossett

2000

Seat, MOMO Start FG listed as 12.5

15.00

Gene Felber

2003

Cigarette lighter

0.06

anonymous

NA

Mazdaspeed short shift kit with bolts and ring

1.20

anonymous

NA

Stock shifter with bolts

1.10

anonymous

NA

Stock shift knob

0.70

anonymous

NA

Rollbar, Kirk Racing

80.00

Alan Beder

1999

Rollbar Kirk Rcng w/ diag brace&drivers hoop

73.00

Chris Regan

1999

Stock driver's speaker/enclosure

2.00

Gene Felber

2001

Stock passenger's speaker/enclosure

2.00

Gene Felber

2001

rear trunk plastic-aft of rear speakers

7.50

Gene Felber

2001

stock ECU harness "guard"

0.31

Gene Felber

2001

M2 Roll Bar with diagonal brace and rear harness bar

46

Gene Felber

2001

steering wheel & air bag

9.31

Gene Felber

2001

Sparco wheel and MS adaptor

3.25

Gene Felber

2001

Seat, Sparco Evo

12.00

Gene Felber

2001

jack and crank handle

3.44

Gene Felber

2001

stock shift knob

0.70

Gene Felber

2001

Factory seats/brackets

34.00

Paul Winter

2003

Seat belts and reels

2.25

Paul Winter

2003

Misc hardware and fasteners

5.00

Paul Winter

2003

Rear compartment lifting cover

2.75

Paul Winter

2003

Rear Bins and lids (note that one bin was previously cut to allow battery relo)

10.00

Paul Winter

2003

Rear carpet (touring type)

8.00

Paul Winter

2003

CB radio and antenna base

2.00

Paul Winter

2003

Radio and CB player from dash

6.25

Paul Winter

2003

Door speakers and enclosures (both)

8.00

Paul Winter

2003

Sunvisors (both)

1.25

Paul Winter

2003

Driver side inner door panel

5.25

Paul Winter

2003

Passenger side inner door panel

4.50

Paul Winter

2003

Rear compartment plastic divider

4.25

Paul Winter

2003

Bose rear speaker tubes and driver, amp not included

17.25

Paul Winter

2003

All other rear trim panels, front kick panel, gauage pods

14.25

Paul Winter

2003

Rear Bins and lids

10.25

Gene Felber

2003

tar, bin area

2.10

Gene Felber

2003

tar, driver and passenger footwells, tranny tunnel

6.00

Gene Felber

2003

Electrical

Stock fog lights

3.20

Wire & relays removed (headlight motors, fans, horns, etc)

15.00

Stock battery

36.50

Stock battery

36.50

Stock battery

35.70

Miata battery

25.00

Hawker Genesis G26EP 26 Ah (used in Pettit kit?)

22.50

N-Tech BMK (Hawker Oddyssey PC650?) 

14.50

N-Tech BMK (Hawker Oddyssey PC650?) 

14.70

Hawker Oddyssey PC545 230 CCA

12.00

Hawker Oddyssey PC625 265 CCA

13.20

Hawker Oddyssey PC680 280 CCA 

14.70

Optima 800S, 800 CCA, Optima's lightest 12V battery

39.00

Taylor Vertex 32 Ah, 225 CCA

20.00

Engine

T2 engine w/accessories

350-375

13BT 86-88 T2

375.00

13BREW with flywheel, turbos, No AC, air pump or PS

320.00

Accessories:

Airpump 20 Steve Cirian 08 Aug 1998

20.00

Power steering and A/C, brackets, pulleys, etc 38.6 RudylRx7@aol.com 20 Sep 1999

38.60

Front engine eye hook w/both bolts 0.73 "anonymous"

0.73

Rear engine eye hook w/1 bolt 0.18 "anonymous"

0.18

Stock air sep tank w/both pressure hoses, top bracket & bolts 0.97 "anonymous"

0.97

Stock turbos, center housing, wastegate, pre-ctrl actuators 28.2 (Not exhaust manifold and DP studs)

28.20

stock intercooler

5.00

misc brackets for airbox and airbox

5.88

intake hoses

1.31

intercooler hoses

5.13

FAST strut bar

3.60

M2 airbox w/K&Ns

3.88

M2 AL intake hoses

1.25

M2 intercooler hoses

3.00

Pulleys

Stock steel pulley w/bolts and timimg ring

3.40

stock e-shaft pulley

3.25

Stock belts, each

0.30

Greddy pulley kit (alloy wp and alt pulleys)

1.40

Greddy belt for no air pump

0.16

Pettit main pulley, alloy, w/ allen screws

1.40

Unorthodox e-shaft pulley

1.40

Downpipes

Stock pre-cat

22.50

Stock pre-cat w/O2 sensor)

22.60

Stock pre-cat

24.00

Bonez SS

8.00

Bonez (RP) SS, without O2 sensor

8.00

Bonez MS

11.00

Bonez MS, weighed on a digital bathroom scale

13.00

Pettit SS DP with Jet Hot Grey 2000 Coat

8.00

Main Cat

Stock

33.50

Stock

30.00

N-Tech SS high-flow cat with air-pump pipe

11.60

N-Tech SS high-flow cat

12.00

Random Technology

30.00

Rotary Performance hi-flo cat (stainless)

16.00

Rotary Performance hi-flo cat (stainless)

16.00

Catbacks

Stock

33.50

Stock

33.00

Stock

31.00

Stock

33.60

Stock

33.00

Apex N1

29.50

ASP w/Ultraflow (midpipe + exhaust)

22.00

ATR 2 piece SS (same as Pettit?)

19.00

Greddy PE

28.00

Pettit TKT w/5.25" tip

18.00

PFS

19.00

Racing Beat (RS*R) stainless steel

24.00

Racing Beat (RS*R) mild steel

24.00

RS*R painted dual tip w/hardware (0.8 lbs)

30.40

RS*R stainless single tip- rear muffler only

18.50

Tanabe

39.00

Radiators

Stock 8.5 Yamagughi text

8.50

Flywheels

Stock

23.00

Stock

22.00

Stock

22.00

Auto trans counterweight

3.50

Auto trans counterweight

5.00

Centerforce

11.00

Exedy chrome-moly lightweight

10.80

MazdaTrix

12.00

Mostly Mazda

8.00

Mostly Mazda

11.00

Pettit w/replacable surf

8.50

Pettit "8.5"

8.50

Pettit "11.5"

11.50

Racing Beat alum w/steel friction surface incl counterweight

11.50

Racing Beat aluminum

12.50

Racing Beat aluminum(8.2lb, 4lb cntrwt, .6lb hrdwr & pckging)

12.80

Racing Beat lightweight steel

17.70

Rotary Performance

8.50

Rotary Performance

9.25

RX-7 Fashion

8.00

Shane Racing

9.50

TriPoint aluminum

8.50

Wholesale Hyperformance chrome moly

11.90

Transmission:

Stock 5 speed dry

112.00

Stock 5 speed without fluids

116.00

Stock 5 speed without bellhousing, with shipping box

90.00

Borg Warner T56 133

133.00

Borg Warner T56 dry 122

122.00

Tremec TKO or TR-3550

74.00

Power Plant Frame

Stock

20.30

Mazdaspeed

20.30

Brake Parts:

AP Racing 330m compared to stock, per wheel -2.6 Bernd Kluesener 05 Jun 1998

18.20

Vlaskis kit front, 355x32 Brembo disc, AP caliper, +2 Mark Valskis 21 Jun 2000

22.80

Vlaskis kit rear 313x25.4 Brembo disc, AP caliper, -4.5 Mark Valskis 21 Jun 2000

-4.50

Stock iron rotors 11.6"x0.85"

15.00

Stock iron rotors 11.6"x0.85"

14.60

AP Racing rotors 330x28 with aluminum mounting bell

11.90

Brembo rotors, OEM style solid face, front

15.40

Ikuta rotors, OEM style solid face, rear

11.20

Cooltech MMC rotors 14x1.25" one-off

7.65

M2 AP Racing rotors 13x1.2" 48 vane rotor

12.50

Mandeville 13" big brake kit rotors

14.50

Porsche 911 Turbo 12.7" rotors

21.00

Porsche 322x32mm bi-turbo GT cross drilled rotors

15.30

Stoptech 328x28mm (13.12x1.12") iron slotted rotors on al hats

10.00

Stoptech 328x25 mm MMC rotors with cast-in holes

4.00

Hawk HP+ pads front, set of 4

3.20

Hawk HPS pads rear, set of 4

1.60

Stock Mazda alloy caliper, front

6.20

AP Racing 3720 caliper

6.10

Brembo Cooltech 4 piston caliper w/bracket

9.45

Mandeville big brake kit modified stock calipers

8.50

Wilwood caliper

13.10

Stoptech calipers for above rotors

6.00

Spare Tire, etc:

Spare tire

21.50

Stock Enkei spare

21.50

Stock spare holder bolt and plate

0.50

Stock jack & crank handle

3.44

Stock lug wrench 0.9 "anonymous"

0.90

Stock wheel chock & wing nut

0.90

Stock flat tire holder bolt

0.30

Suspension parts:

Pettit front sway bar steel

15.00

Racing Beat front sway bar tubular

11.00

Suspension Techniques front sway bar

NA

CUSCO rear carbon fiber shock tower brace with al end plates

2.00

GAB front shock tower brace (and Fastco clone ?) 

3.60

Tires:

Stock Bridgestone S01 225x50x16 computed from tire+wheel wt 20 Steve Cirian 10 May 1998

Dunlop Radial race slick 260-640-18

19.2

Dunlop SP-8000 heavier than Pirelli P-7000 4 Bernd Kluesener 21 Apr 1998

Dunlop SP-8000 245/45 16, Tirerack shipping weight 26 Luke at Tirerack 31 May 2000

Hoosier 245/45 16?, Tirerack shipping weight 18 Luke at Tirerack 31 May 2000

Hoosier R3S02 245/40/17 18 Chuck Mirenda, NSX list 10 Feb 1999

Hoosier R3S02 245/40/17

18.5

Hoosier R3S03 275/40/17 

22.2 

Wheels:

Stock 16x8 1993 13.5 SCC 11/98, p238

13.5

Stock 16x8, mfg August 1993, weighed on a certified scale Steve Wynveen 30 Aug 1999

14.32

Stock 16x8, Mazda literature Steve Wynveen 30 Aug 1998

15.4

Stock 16x8, Nick Riefner quoting another source Nick Riefner 23 Jun 1998

16.3

Stock 16x8  Chris Regan private post 12 May 1999

14.7

Stock `99 RS 17x8, 17x8.5 Ed Kim 15 Mar 1999

16.3

Stock `97 RS-R front 17x8 by bathrm scale, (same as `97 RS-R) 18.5 C.E. Howell 15 Mar 1999

18.5

Stock `97 RS-R rear 17x8.5 by bathrm scale (same as `97 RS-R) 19.5 C.E. Howell 15 Mar 1999

19.5

CCW 17x9.5 18 Marc Schaefer 28 Jan 1999

CCW 17x9.5 19.1 Sandy Linthicum 20 Dec 1998

CCW 17x10 18.5 Marc Schaefer 28 Jan 1999

CCW 17x10 18.75 Seve Cirian 26 May 1999

CCW 18x10 w/ centers 22 Victor Masch 10 Apr 2000

CCW 18x10 w/lightened centers & Titanium fasteners

19.50

Fikse Profil 18x10 13 spoke

20.6

IFG 17x9 40 mm offset 

17.25

IFG 17x9 45 mm offset 

17