Threads Tagged with 12a

1st Gen General Discussion

12a, 1981, 1985, 4070, alternator, carter, engine, jeff20b, mazda, number, rx7, sunbeam, thing, vin, wiring

What did you do to your FB today?

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Kentetsu on Feb 7, 2012

Jan 13, 2026 04:33 AM
by mazdaverx713b

8,597

1,043,245

12a, 13, 13b, 13brew, accord, build, coilovers, displaying, exhaust, full, honda, ii, respeed, rew, transmission, turbo

My 13B-REW Build

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1badFB on Mar 26, 2012

Oct 3, 2025 05:06 AM
by 1BADRX7

136

44,787

3rd Generation Specific (1993-2002)

12a, amecu, boost, covers, fd, mechanical, mod, modification, omp, pictures, premix, pump, rotary, rx7, source, turb0dem0n, vacuum, wear, work

OMP-how it works, modification for AMECU, discussion regarding premix

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Eric Michel on Mar 10, 2002

Sep 17, 2025 10:35 AM
by RX7BRUG

83

75,995

12a, 1st, carb, carburetor, e85, gen, jets, mazda, mix, nikki, pre, premix, rotary, running, rx7, turbo

12a with Nikki carb running premix + e85?

JoeNoble on Jun 26, 2011

Sep 17, 2025 09:46 AM
by RX7BRUG

17

9,612

12a, 1985, close, disable, idling, mazda, port, problem, purpose, remove, replace, rotary, rx7, shutter, valve

Shutter Valve - 1985 12a?

apeckz on Feb 3, 2003

Jun 24, 2025 04:06 PM
by TopGunM2k

16

7,771

12a, 13b, big, compression, compretion, hard, high, horsepower, idle, misses, mods, power, rotars, rotor, rotors, rx7club, turbo

High comp 12a rotors

Loose10AE on Nov 5, 2012

Mar 1, 2025 09:18 AM
by peejay

21

7,238

12a, 1st, 50, 85, accelerator, accerator, carb, cobra, gen, leak, leaking, nikki, pump, rx7, work

Accelerator Pump Question

Simon Tibbett on Jun 19, 2012

Feb 27, 2025 07:30 PM
by AdamOver

15

9,199

12a, 14, 150, 150hp, horsepower, hp, mazda, rx7club

How to get to a 150 hp 12A?

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pjr on Oct 2, 2002

Jan 19, 2025 11:45 PM
by brian_skotch

63

10,347

12a, ebay, hoses, lines, melting, oil, omp, rx7, rx7club, teflon

New teflon omp lines melted.

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Fijensen on Sep 25, 2004

Jan 14, 2025 09:05 PM
by gsmithrx7

29

5,510

12a, angeles, computers, distributor, distributors, haltech, heltech, hook, ignition, los, lt4, map, microtech, owner, turbo

haltech with 12a distributor

snkmazda on Mar 12, 2006

Jan 6, 2025 06:57 PM
by valerobrujo

9

2,068

12a, 6al, 6al2, 85, al, diagram, fb, install, installation, instructions, mazda, msd, rx7, wiring, write

MSD 6AL-2 Installation on a 12-A

juantii on Sep 26, 2012

Dec 26, 2024 07:14 AM
by 73rx313b

9

29,167

110, 12a, bridgeport, bridgeported, compression, drummond, horsepower, mazda, motor, numbers, octane, rotary, rx7, settings, timing

Timing a bridgeport.

GT3_racer on Oct 13, 2004

Dec 16, 2024 05:01 AM
by peejay

21

17,159

Race Car Tech

12a, 14k, 17000, engine, highest, minute, redline, rev, revolutions, revving, rotary, rpm, rx7, shift, worlds

What is the highest rpm rotary?

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rotarymandan on Jan 9, 2008

Oct 11, 2024 12:19 AM
by DjWood

47

105,192

12a, 13b, bfh, box, diagram, fb, gslse, license, muffler, plate, rotary, rx7, steering, swap, w83

79SA to 87EFI. Not nearly as simple as it looked.

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GySgtFrank on Mar 30, 2012

Jun 13, 2024 09:16 AM
by GySgtFrank

196

29,265

12a, 13b, 37mm, 45, 48, 60f9, choke, dcoe, engine, jetting, mazda, mods, pump, rotary, turbo, weber

jet a weber dcoe

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nismoracer99 on Jan 10, 2007

Apr 29, 2024 04:22 PM
by j_tso

33

15,374

Matt Montgomery (Matt555) Tried To Scam Me

Marcofc on Jul 18, 2023

Jul 18, 2023 02:54 PM
by Marcofc

0

2,068

The Bad & Fugly Members

12a, 13b, 36, 36dcd, carb, dcd, dual, engineering, holley, intake, manifold, port, rotary, venturi, vs, weber

Rotary Engineering Dual Weber 36DCD Carbs

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Sgt Fox on Sep 11, 2009

Jul 5, 2023 10:32 AM
by oschool_3

81

59,690

Naturally Aspirated Performance Forum

12a, 44, carbs, carburetors, club, datsun, engine, found, intakes, mikuni, one, phh, rx3, rx7, rx7club, small

Is two better than one? 12a

Redliner223 on Aug 2, 2012

Jul 4, 2023 06:24 PM
by kirkosaki

14

8,220

12a, 13b, 6port, cost, engine, housing, jdm, mazda, motor, port, ports, rx7, seals, series, t12a, turbo

few question about a 12a 6 port engine

timmya2 on Nov 9, 2004

Mar 6, 2023 06:21 PM
by fbse7en

20

8,062

General Rotary Tech Support

12a, 13b, 1988, 6port, engine, improve, mpg, port, porting, rotary, rx, rx7, street, tall, year

4 port vs. 6 port/12a vs. 13b

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f150rx7 on Sep 16, 2010

Jan 22, 2023 01:58 AM
by Forex1480

26

73,892

12a, 13b, 20b, custom, housings, intake, iornboltcom, irons, japanese, kit, oring, parts, renesis, renisis, rotor

Renesis Irons on 12a

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79rx_7 on Jun 21, 2006

Dec 6, 2022 10:03 PM
by ScooterPete

85

23,855

General Rotary Tech Support

10, 12a, 5, engine, fiverotor, gainesville, motor, polished, repair, rotary, rotor, rotores, rotors, rx7club, shaft

five rotor engine

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schaft on Mar 7, 2011

Nov 13, 2022 06:29 PM
by Monsterbox

42

44,636

12a, 44, air, atkins, downdraft, draft, drafts, intake, manifold, mazda, mikuni, phh, side, sidedraft, weber

Side draft intake question

Redliner223 on May 20, 2012

Oct 13, 2022 12:09 PM
by Rx7linc

11

11,624

12a, 4rotor, budget, build, building, builds, cheap, cost, make, netherlands, package, quad, rotar, rotary, rotor

average guys 4 rotor build

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albeeno on Jan 8, 2012

Sep 27, 2022 05:45 PM
by mr2peak

41

81,143

Naturally Aspirated Performance Forum

12a, afr, aspirated, build, dyno, dynos, horsepower, mazda, na, naturally, power, pp, results, rotary, specks

12a PP dyno

gusfd3s on Apr 6, 2011

Sep 9, 2022 08:37 AM
by Rx-7Online

15

12,595

12a, 85, bad, crank, crankshaft, engine, ignition, lights, pics, rx7, rx7club, start, starter, switch, turn, warning, wont

85 Rx7 12a Will not turn over (followed the guide!)

tiexgrr on Oct 26, 2009

Aug 13, 2022 12:31 PM
by rmauser

20

13,431

12a, aaron, aaroncake, cake, delete, eliminate, nest, nests, rats, removal, remove, removing, rid, rx7, spider

How to Remove the Rats Nest

RX7freak08 on Jan 27, 2007

Jun 9, 2022 05:16 PM
by Dak

18

15,947

12a, bnr, compessor, compressor, fc3s, fd3s, map, maps, size, supers, surge, t04b, t04b2, trim, trims, wheel

Sticky

How size matters. Compressor map illiterate? By Zero R

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JeffShoots on Oct 14, 2005

Apr 28, 2022 10:58 PM
by Slides

31

45,322

Single Turbo RX-7's

12a, 13b, 600, beat, carb, dp, engine, holley, install, intake, metering, oil, omp, pump, racing, rotary, rx7

Is this a Racing Beat Holley?

12aglc on Mar 14, 2007

Mar 20, 2022 03:16 PM
by dragonsomnolent

16

6,467

12a, 1st, 20b, azmotorsports, carbed, fb, gen, generation, madza, nj, rotor, rx7, rx7club, swap, transmission

1st generation 20b swap project

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lomber13 on Sep 20, 2009

Mar 12, 2022 07:57 PM
by lomber13

152

84,488

12a, bruce, build, drill, engineering, jeff, peripheral, port, ports, precision, press, rotary, rotor, scoot, side

4-Rotor FB Build (side ports!!)

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Jeff20B on Dec 29, 2011

Jan 26, 2022 06:33 PM
by Rub20B

187

99,273

12a, 13b, 351, build, building, fb, front, gen, haltech, httpwwwabetheturboguycom, race, rx, s4, sprint, swap, thread, turbo

My 83 GSL

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twinkletoes on Jun 19, 2011

Nov 22, 2021 02:37 PM
by GtiKyle

707

169,184

10a, 12a, 13b, cut, housing, housings, mazda, nikasil, nitriding, premix, rechrome, rechromed, rotary, rotor, scratched

Re-chromed rotor housings

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Glassman on Jan 24, 2011

Oct 12, 2021 08:13 PM
by Glassman

166

81,571

Rotary Car Performance

12a, 1985, 1987, 944, blue, club, color, diagram, fb, hose, hoses, mazda, ocean, rx7, schematics, vacuum

12A FB Vacuum diagram (IN COLOR!!!)

Xamnglc on Aug 1, 2012

Sep 28, 2021 04:12 PM
by s_w_king

13

23,704

12a, 1980, 1st, 84, club, direct, dual, electronic, fire, gen, ignition, ignitor, leading, mazda, rx, rx7

12a Direct Fire Conversion

DrAwesom on Aug 3, 2011

Aug 28, 2021 01:24 AM
by KiwiRotor

23

16,508

12a, 7985, atlanta, australian, body, cressida, duckbill, fabricators, fb, ga, georgia, hollley, imsa, intake, manifold, rx7, sale, toyota, wide, widebody

craaaazzy's Widebody REW project

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craaaazzy on Jul 13, 2012

Jul 22, 2021 10:37 AM
by craaaazzy

505

97,517

12a, 45, carburetor, dcoe, examples, gslse, half, hesitation, jetting, jettings, mazda, rx7, tricks, tuning, weber

Tuning a 45 DCOE weber?

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Chamele03 on Jul 2, 2004

Jul 13, 2021 05:55 PM
by diabolical1

37

26,450

New Member RX-7 Technical

12a, 1982, 85, adaptor, adjust, carb, carbs, carburetor, carburetors, edelbrock, holley, modify, rx7, tuning, upgrades

rx7 carburetor upgrade

snowbreaker on May 9, 2011

Jul 4, 2021 08:07 PM
by blan09

19

20,404

12a, 13b, 1986, bolt, cosmo, good, pattern, pulley, pump, pumphousing, racing, rew, rx7club, tension, tii, water, whats

Racing water pump? What do I have?

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trochoid on Nov 12, 2004

Jun 24, 2021 06:39 AM
by speedracer_not

34

20,826

12a, 1985, banjo, bee, beehive, bolt, cooler, elimination, hive, mod, oil, remove, removing, rx7, rx712a, thermos

Beehive oil cooler removal help

mikexj1020 on Aug 6, 2012

May 29, 2021 06:41 AM
by lwrobins

10

14,727

12a, driving, drops, idle, idling, increases, intersection, low, na, oil, pressure, reads, ring, rx7, warm

oil pressure drops to zero at idle?

ourxseven on Sep 11, 2007

May 13, 2021 09:12 PM
by dk_davis

16

18,010

12a, 18401, carb, holley, jet, jets, jetting, mazda, rb, recommendations, rx7, size, sizes, stock, tuning

Holley Jet Size reccomendations? Stock 12a

bkm_rx7 on Oct 14, 2004

Mar 28, 2021 02:18 PM
by 6italia0

21

10,610

12a, fluidyne, install, installer, kit, master, motor, nitrous, nos, oxide, radiator, recommended, rotary, rx7, setup

I'm doing nitrous oxide installation in 12A..help

mperformance on Jun 10, 2002

Mar 17, 2021 05:24 PM
by powrd12a

10

8,060

Rotary Car Performance

12a, attatch, carburater, secondaries, vacuum, working

Vacuum Secondaries

rx7haze on Jul 10, 2008

Mar 14, 2021 12:13 PM
by This guy

17

5,241

New Member RX-7 Technical

12a, 1984, 5567740, 84, 85, cut, fa, forum, fuel, location, mazda, performance, pump, relay, rx7

Fuel Pump cut-off relay location - 84 GSL

tperry on Oct 5, 2009

Nov 12, 2020 10:17 AM
by jdinino57

11

14,580

12a, craigslist, diagram, el, engine, holley, intake, leaks, mazda, motors, rx2, rx7, sale, sereno, water

just picked up a 74 rx2

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turbo_dave on Aug 28, 2010

Aug 1, 2020 07:44 AM
by Stanford Herman

60

14,656

1st Gen General Discussion

12a, 14, closest, forgot, hook, megasquirt, michael, mile, ne, omaha, pinto, quarter, rotarycarclub, streetport, track, up

Sticky

* 1st Gen 1/4 Mile Leader Board *

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blown7 on May 14, 2007

Jul 19, 2020 03:22 PM
by SaveTheRx-7

227

84,248

12a, blue, boost, dizzy, holley, kit, mazda, mod, point, pump, put, retard, timing, turbo, widband

12a turbo tuning help

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sdminus on Apr 9, 2006

Jul 12, 2020 04:10 AM
by zombiemaniac

31

11,290

12a, 13b, 1984, brap, exhaust, idle, infiniti, issues, mazda, overlap, ports, q45, rotary, skipping, wont

What makes the rotary go "brap brap" instead of "hmmmm?"

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pjr on Jul 3, 2008

Jun 28, 2020 05:43 AM
by Bumbel Bambel

48

110,153