This page hosted courtesy of Regan Rotary Racing. December 2009.

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  I've removed most of the wheel and tire weight data as much of this is obsolete or duplicated on other sites.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

 Gene Felber's 3rd Gen Base; rear interior removed; M2 roll bar; single turbo; no AC, air pump, or PS 2615  Gene Felber

2004

PFS 3rd gen race car

2300

Kevin Wyum

1997

Jim LaBreck's car before 20B

2500

Jim LaBreck

1999

Jim LaBreck's est weight reduction before 20B

175-200

Jim LaBreck

1998

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

2520

Sandy L

1999

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

2710

Mike ?

1998

Pettit 3 rotor, 550 hp

2740

SCC 11/98, p53

1998

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

2740

Sandy L

1999

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

2743

Hung-Jen Hung

1998

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

2778

Wael El Dasher

1999

Stock 93 base model, 3/8 tank gas

2780

Max Cooper

1998

93 RX7 2789 Mazda sales brochure

2789

Mazda Sales Brochure

1993

93 Base with 1/4 tank fuel

2800

Sean Adee

1999

R1 2801

2801

Dennis Pedersen

1998

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

2835

Jeff Witzer

1998

93 RX7

2840

Felix Miata

1998

Touring with manual transmission

2862

Dennis Pedersen

1998

Gordon Monson's car

2870

Gordon Monson

1999

93 Touring with Bose etc.

2870

Road and Track 4/92

1992

Mazda Australia one-off prototype SPII

2910

Jeff Smith

1999

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

Rudy

1998

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

15.00

Jim LaBreck

1998

Stock battery

36.50

Gene Felber

2001

Stock battery

36.50

Brian Gobel

1999

Stock battery

35.70

N-Tech

1999

Miata battery

25.00

Gene Felber

2001

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

22.50

Hawker website

1999

N-Tech BMK (Hawker Oddyssey PC650?) 

14.50

Brian Gobel

1999

N-Tech BMK (Hawker Oddyssey PC650?) 

14.70

N-Tech

1999

Hawker Oddyssey PC545 230 CCA

12.00

Hawker website

1999

Hawker Oddyssey PC625 265 CCA

13.20

Hawker website

1999

Hawker Oddyssey PC680 280 CCA 

14.70

Hawker website

1999

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

39.00

Optima website

1999

Taylor Vertex 32 Ah, 225 CCA

20.00

Taylor Vertex website

1999

Engine

T2 engine w/accessories

350-375

Max Cooper

1999

13BT 86-88 T2

375.00

Max Cooper

2000

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

320.00

Les D.

2001

Accessories:

Airpump 20 Steve Cirian 08 Aug 1998

20.00

Steve Cirian

1998

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

38.60

Rudy

1999

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

0.73

Anonymous

1999

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

0.18

Anonymous

1999

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

0.97

Anonymous

1999

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

28.20

Max Cooper

2000

stock intercooler

5.00

Gene Felber

2001

misc brackets for airbox and airbox

5.88

Gene Felber

2001

intake hoses

1.31

Gene Felber

2001

intercooler hoses

5.13

Gene Felber

2001

FAST strut bar

3.60

Gene Felber

2001

M2 airbox w/K&Ns

3.88

Gene Felber

2001

M2 AL intake hoses

1.25

Gene Felber

2001

M2 intercooler hoses

3.00

Gene Felber

2001

Pulleys

Stock steel pulley w/bolts and timimg ring

3.40

Gene Felber

2000

stock e-shaft pulley

3.25

Gene Felber

2001

Stock belts, each

0.30

Anonymous

2000

Greddy pulley kit (alloy wp and alt pulleys)

1.40

Anonymous

1999

Greddy belt for no air pump

0.16

Anonymous

1999

Pettit main pulley, alloy, w/ allen screws

1.40

Anonymous

1999

Unorthodox e-shaft pulley

1.40

Gene Felber

2001

Downpipes

Stock pre-cat

22.50

NA

1999

Stock pre-cat w/O2 sensor)

22.60

Max Cooper

1999

Stock pre-cat

24.00

NA

NA

Bonez SS

8.00

Scot Knight

1999

Bonez (RP) SS, without O2 sensor

8.00

Max Cooper

1998

Bonez MS

11.00

Scot Knight

1999

Bonez MS, weighed on a digital bathroom scale

13.00

Wade Lanham

1998

Pettit SS DP with Jet Hot Grey 2000 Coat

8.00

Jeff Hackett

2001

Main Cat

Stock

33.50

Gene Felber

2001

Stock

30.00

Max Cooper

1999

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

11.60

Max Cooper

1999

N-Tech SS high-flow cat

12.00

Max Cooper

1999

Random Technology

30.00

Doug Underwood

1999

Rotary Performance hi-flo cat (stainless)

16.00

Ed Kim

2000

Rotary Performance hi-flo cat (stainless)

16.00

Gene Felber

2001

Catbacks

Stock

33.50

Gene Felber

2001

Stock

33.00

Gene Felber

2000

Stock

31.00

Scot Knight

1998

Stock

33.60

Max Cooper

1998

Stock

33.00

Max Cooper

1999

Apex N1

29.50

Thom Chow

1999

ASP w/Ultraflow (midpipe + exhaust)

22.00

Kevin Wyum

1997

ATR 2 piece SS (same as Pettit?)

19.00

Billy Spense

1998

Greddy PE

28.00

Max Cooper

1999

 Greddy/P race only 3.75" with resonated center section 36 Gene Felber 2004

Pettit TKT w/5.25" tip

18.00

Jerry Josz

1998

PFS

19.00

Steve Cirian

NA

Racing Beat (RS*R) stainless steel

24.00

Steve Cirian

NA

Racing Beat (RS*R) mild steel

24.00

Steve Cirian

NA

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

30.40

Max Cooper

2000

RS*R stainless single tip- rear muffler only

18.50

Gene Felber

2001

Tanabe

39.00

RudyRX7

1998

Radiators

Stock 8.5 Yamagughi text

8.50

Yamaguchi Text

1993

Flywheels

Stock

23.00

Dale Black

1999

Stock

22.00

Thom Chow

1999

Stock

22.00

Gene Felber

2000

Auto trans counterweight

3.50

Felix Miaturd

1998

Auto trans counterweight

5.00

Dale Black

1999

Centerforce

11.00

Alan Beder

1999

Exedy chrome-moly lightweight

10.80

SCC 7/99 p215

1999

MazdaTrix

12.00

Nelson Starbranch

1999

Mostly Mazda

8.00

Nelson Starbranch

1999

Mostly Mazda

11.00

Nelson Starbranch

1999

Pettit w/replacable surf

8.50

Jeff Witzer

1999

Pettit "8.5"

8.50

Nelson Starbranch

1999

Pettit "11.5"

11.50

Nelson Starbranch

1999

Racing Beat alum w/steel friction surface incl counterweight

11.50

Nick Riefner

1999

Racing Beat aluminum

12.50

Racing Beat website

2000

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

12.80

Max Cooper

1999

Racing Beat lightweight steel

17.70

Racing Beat website

2000

Rotary Performance

8.50

Nelson Starbranch

1999

Rotary Performance

9.25

Nelson Starbranch

1999

RX-7 Fashion

8.00

Nelson Starbranch

1999

Shane Racing

9.50

Nelson Starbranch

1999

TriPoint aluminum

8.50

Richard Thomason

1999

Wholesale Hyperformance chrome moly

11.90

Andreas Darmawan

1999

Transmission:

Stock 5 speed dry

112.00

Jim LaBreck

2001

Stock 5 speed without fluids

116.00

Shannon Ward

2000

Stock 5 speed without bellhousing, with shipping box

90.00

Christopher (Krzysi013)

2000

Borg Warner T56 133

133.00

Jim LaBreck

2000

Borg Warner T56 dry 122

122.00

Jim LaBreck

2001

Tremec TKO or TR-3550

74.00

Jim LaBreck

2000

Power Plant Frame

Stock

20.30

Bernd Kluesnener

1998

Mazdaspeed

20.30

Bernd Kluesnener

1998

Brake Parts:

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

18.20

Bernd Kluesener

1998

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

22.80

Mark Valskis

2000

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

-4.50

Mark Valskis

2000

Stock iron rotors 11.6"x0.85"

15.00

SCC 4/99

1999

Stock iron rotors 11.6"x0.85"

14.60

SCC 10/98

1998

AP Racing rotors 330x28 with aluminum mounting bell

11.90

Bernd Kluesener

1998

Brembo rotors, OEM style solid face, front

15.40

Max Cooper

1999

Ikuta rotors, OEM style solid face, rear

11.20

Max Cooper

1999

Cooltech MMC rotors 14x1.25" one-off

7.65

Shiv

1999

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

12.50

Shiv

1999

Mandeville 13" big brake kit rotors

14.50

Wael El Dasher

1999

Porsche 911 Turbo 12.7" rotors

21.00

SCC 4/99

1999

Porsche 322x32mm bi-turbo GT cross drilled rotors

15.30

Brad Barber

1998

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

10.00

Gordon Monsen

1999

Stoptech 328x25 mm MMC rotors with cast-in holes

4.00

Gordon Monsen

1999

Hawk HP+ pads front, set of 4

3.20

Max Cooper

1999

Hawk HPS pads rear, set of 4

1.60

Max Cooper

1999

Stock Mazda alloy caliper, front

6.20

SCC 4/99 p205

1999

AP Racing 3720 caliper

6.10

Bernd Kluesener

1998

Brembo Cooltech 4 piston caliper w/bracket

9.45

SCC 4/99 p205

1999

Mandeville big brake kit modified stock calipers

8.50

Wael El Dasher

1999

Wilwood caliper

13.10

Brad Barber

1998

Stoptech calipers for above rotors

6.00

Gordon Monsen

1999

Spare Tire, etc:

Spare tire

21.50

Gene Felber

2001

Stock Enkei spare

21.50

Rudy

1998

Stock spare holder bolt and plate

0.50

Rudy

1998

Stock jack & crank handle

3.44

Gene Felber

2000

Stock lug wrench 0.9 "anonymous"

0.90

Anonymous

2000

Stock wheel chock & wing nut

0.90

Anonymous

2000

Stock flat tire holder bolt

0.30

Anonymous

2000

Suspension parts:

Pettit front sway bar steel

15.00

Rick S., Houston RX-7 Club

1998

Racing Beat front sway bar tubular

11.00

Rick S., Houston RX-7 Club

1998

Suspension Techniques front sway bar

NA

Trey Jones

1998

CUSCO rear carbon fiber shock tower brace with al end plates

2.00

Rotary Performance

1998

GAB front shock tower brace (and Fastco clone ?) 

3.60

Anonymous

NA

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

Paul Winter

2003

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

Gene Felber

2001

Hoosier R3S03 275/40/17 

22.2 

Paul Winter

2003

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

Gene Felber

2003

Fikse Profil 18x10 13 spoke

20.6

Paul Winter

2003

IFG 17x9 40 mm offset 

17.25

Gene Felber

2000

IFG 17x9 45 mm offset 

17

Gene Felber

2000

 

H