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Alternative Fuels

Discussion and Tech on using alternatives such as E85 or Hydrogen or other fuels and/or supplements to Gasoline in Rotary Engines

Zero Emission Pneumatic...

by Penguin_TRTL

Dec 8, 2025 10:10 AM

230

4,106

The place to discuss topics of water injection, alky/meth injection, mixing water/alky and all of the various systems and tuning methods for it. Aux Injection is a great way to have a reliable high power rotary.

Rust in bradied steel...

by mikejokich

Dec 30, 2025 05:42 PM

755

10,601

20B Forum

20b Pulleys

by cardmarc

Mar 30, 2026 11:35 AM

2,953

44,275

Naturally Aspirated Performance Forum

Discussion of naturally-aspirated rotary performance. No Power Adders, only pure rotary power! From the "12A" to the "RENESIS" and beyond.

Help with 160 hp...

by t_g_farrell

Feb 21, 2026 08:09 AM

867

16,051

Other Engine Conversions - non V-8

Discussion of non-rotary engines, exc V-8's, in a car originally powered by a Rotary Engine.

4g63 fd

by Bean4G63

Feb 27, 2026 11:52 AM

974

18,390

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12a, brian, brooks, colorado, dowling, dp, drag, dragtimes, gt66, harsh, lotus, mile, rx7club, times, weisblatt

Sticky

New Drag Times Thread

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1 2 3 4 5 ... Last Page)

Greg on Feb 25, 2002

May 13, 2013 01:37 AM
by OBDAutoTool

268

84,569

Normal Threads

dog, gear, gearset, giken, kits, os, quafie, quaife, rx7, set, speed

Quaife 6speed gearset?

R-R-Rx7 on Aug 27, 2010

Aug 27, 2010 05:12 AM
by R-R-Rx7

1,539

cabin, car, exhaust, glasspack, make, making, muffler, nashville, performance, pipes, quiet, quieter, rx7, small, ticket

Best way to make my exhaust quieter (pics)

N3v on Aug 12, 2010

Aug 19, 2010 04:05 PM
by j9fd3s

39,062

apex, cermet, coated, compatible, engine, florida, geuteng, haltech, housings, jhb, repair, seals, technology, work, works

What's the latest opinions on cermet?

duval7 on May 9, 2010

Aug 18, 2010 06:07 PM
by lonetlan

5,195

13b, chips, chrome, crome, housing, housings, measurements, metals, oil, plated, plating, retention, rotor, rx7, rx7club, wankel

rotor housing "chrome"

R_PROWESS on Aug 8, 2010

Aug 18, 2010 10:07 AM
by T-R-C

7,668

boost, charcher, gauges, ripp, size, super

Super charger

Silver Tuxedo on Jul 22, 2010

Aug 17, 2010 11:29 AM
by T-R-C

3,089

cleveland, coolant, engine, failing, fixed, kseal, leak, ohio, rear, repair, rotary, rx7club, seal, solvtec, stronger, wha

Coolant seal repair

peejay on Jun 13, 2010

Aug 4, 2010 10:07 PM
by durtled

8,238

18a, 20b, aluminum, block, build, center, eshaft, kit, plate, rotary, rotor, rotorss, rx7club, sale, short, zealand

18a ?? anyone know anything about this?

phantommaggot on Jun 1, 2010

Aug 1, 2010 04:08 AM
by Furb

14,101

13b, application, autozone, blue, bosch, coil, coils, hec715, oem, rotary

Looking for bosch coils

RotorsRulePistonsDrool on Jul 9, 2010

Jul 24, 2010 07:29 PM
by Carlos Iglesias

1,587

Remember when...

BUMBLEBEE7 on Jun 27, 2010

Jul 16, 2010 02:20 PM
by Trots*88TII-AE*

1,365

needing some help

R.O.D on Jul 13, 2010

Jul 15, 2010 01:55 AM
by R.O.D

783

13b, 20b, 350, adapter, bellhousing, custom, engine, fit, jacks, making, mazda, rew, rotary, rx4, t56, transmission

T56 adapter bellhousing

Tessai76086 on Jun 25, 2010

Jul 4, 2010 11:58 AM
by Tessai76086

14,349

12a, 12amazda, 4x4, 4x4safarirotaryclubconz, 4x4ua, account, lifted, mazda, pick, pickup, rotary, truck, type

12a mazda 4x4 pickup?

Jeppy on Jun 30, 2010

Jul 2, 2010 01:14 PM
by RX200013B

1,689

exhaust, port, ports, rotary, round, square, templates

critique my square exhaust ports

R_PROWESS on May 21, 2010

Jun 20, 2010 07:37 AM
by R_PROWESS

3,607

Choosing a Turbo Help

saucey1986 on Jun 12, 2010

Jun 12, 2010 11:24 PM
by saucey1986

736

13, 13b, 93, aftermarket, cosmo, engine, intake, jc, market, motor, parts, performance, rx7, rx7club, washington

jc cosmo 13b engine after market parts?

RotorsRulePistonsDrool on Jun 7, 2010

Jun 10, 2010 10:11 AM
by RotorsRulePistonsDrool

2,630

nitrous on a tII

Templeton on Jun 6, 2010

Jun 9, 2010 11:04 PM
by Templeton

1,002

help with my rebuild?

rotaryking88 on Jun 8, 2010

Jun 8, 2010 07:20 PM
by rotaryking88

940

12a, 725ex, hot, hotspark, hotter, plug, problem, problems, rabbet, rx7, spark, tiebolt

Addressing the hot spark plug problem

BDC on May 23, 2010

Jun 3, 2010 05:35 AM
by Gurew

4,780

12a, balance, balancing, beat, bridge, clearance, clearence, full, lightened, port, race, racing, rotors, shaft, side

Balance rotors & clearence Y/N?

GoRacer on May 27, 2010

May 27, 2010 09:07 PM
by GoRacer

1,764

bmi, body, calculation, formula, index, mass, mybb, powered, racing, rotary, vbulletin

BMI Racing would like your support for the next round of Formula Drift

Sarah_b on May 25, 2010

May 25, 2010 12:17 AM
by Sarah_b

911

Who polishes aluminum intake pieces?

rpm on Apr 2, 2010

May 14, 2010 11:51 AM
by Trout2

1,245

1992, drain, draining, fd3s, fuel, gas, leak, leaking, mazda, petrol, plug, repair, repairing, rx7, tank

Help..Fuel tank leaking from drain plug

fastrx7man on May 4, 2010

May 4, 2010 08:35 AM
by fastrx7man

2,059

Timing help

Bearzah on Apr 20, 2010

Apr 20, 2010 09:48 AM
by Bearzah

590

5th, 5th6th, 6th, benefits, blocking, install, mpg, port, ports, remove, removing, rotary, rx7club, s4, sleeve, sleeves

5th and 6th port sleeves

OK13B on Apr 11, 2010

Apr 16, 2010 03:42 AM
by nillahcaz

6,565

1990, constantly, cooler, fan, kit, lines, oil, running, rx7, stock

Oil Cooler Fans

Kurgan on Sep 19, 2002

Apr 15, 2010 01:14 PM
by j9fd3s

1,781

12a, 8psi, boost, china, past, rx7, skracingcarb47mm, turbo, wont

12A Blowthrew Turbo

xdoomcannonx on Mar 27, 2010

Apr 13, 2010 07:49 AM
by xdoomcannonx

1,703

13b, cooler, lines, mount, mounting, mouny, oil, rotary, rx7club, vent

V mounted oil cooler

R_PROWESS on Apr 7, 2010

Apr 9, 2010 08:32 AM
by Black91n/a

4,872

13b, bridge, casting, cosmo, housing, iron, pic, pics, port, porting, ports, rotary, rotor, sand, tuning

Recent porting pictures 56k death

R.P.M. on Oct 20, 2008

Apr 8, 2010 12:43 PM
by diabolical1

6,216

13b, charge, charged, charging, compound, compund, lotus, m90, rotary

Looking For Donor 13B for Compound Charge

mannykiller on Mar 31, 2010

Mar 31, 2010 05:05 PM
by mannykiller

1,005

Pressure transducer location Q

CrackHeadMel on Mar 27, 2010

Mar 29, 2010 09:04 PM
by Barry Bordes

1,208

atlanta, engine, ga, instructions, overhaul, overhauling, pump, pumps, r6, rebuilds, rebuilt, remove, water, waterpump, yamaha

Water Pump Overhaul/Rebuild

Lucrum on Mar 24, 2010

Mar 29, 2010 11:38 AM
by j9fd3s

3,402

Electric fan

FC beast on Mar 20, 2010

Mar 28, 2010 01:59 AM
by xdoomcannonx

1,021

13b, k27, killeen, kkk, lag, port, rip, sizing, specs, turbo, turbocharger, tx

KKK Turbo Question

Kim on Jul 11, 2007

Mar 23, 2010 07:55 PM
by jdmfc3s90

5,300

13b, belt, cell, driven, fuel, manual, mechanical, mount, pump, pumps, racing, rear, running, rx7, turbo

mechanical fuel pump

1nastyturboII on Mar 8, 2009

Mar 21, 2010 03:08 PM
by 13B-RX3

6,044

Poor mans 4 rotor idea

g14novak on Mar 18, 2010

Mar 19, 2010 08:40 AM
by NewbernD

1,681

assembly, assemboly, balance, balanced, balancing, bobweight, calculate, calculating, dynamic, engine, machine, rotary, rotating, rotor, rx7club

balancing rotating assembly

hIGGI on Mar 9, 2010

Mar 16, 2010 03:27 PM
by hIGGI

8,444

91, garett, garret, garrett, garrret, gt6041, pics, price, rx7, set, setups, turbo, turbochargers, twin, work

Garrett Gt6041 and twin turbo setup

Veilside RX7 are awesome on Mar 4, 2010

Mar 9, 2010 03:42 PM
by Efini.7

5,078

FD Megan Radiator

GMO-RX7 on Mar 8, 2010

Mar 8, 2010 09:31 PM
by GMO-RX7

743

What upgrades to get ~330rwhp safely?

chaknchngo on May 29, 2007

Mar 4, 2010 01:41 PM
by diabolical1

1,705

rotor strengh

ronbros3 on Feb 24, 2010

Mar 3, 2010 11:21 PM
by Zero R

1,796

13b, 13bmsp, 9000, dsm, ems, horsepower, long, msp, pnp, port, porting, problems, redline, renesis, rev, rotor, rx8

How does the Renesis spit out 238hp

(

1 2)

UnderConstruction7 on Aug 24, 2004

Mar 2, 2010 01:49 PM
by RTRx7

44,450

20b, 3mm, cut, cutaway, cutting, engine, machine, mazda, rotor, rotors, rx8, seal, seals, stronger, view

RX8 rotor & cut away for 3mm full height seals

Glassman on Feb 21, 2010

Feb 26, 2010 08:38 PM
by afterburner16

6,033

Renesis engine question

Starfox07 on Feb 13, 2010

Feb 26, 2010 07:40 PM
by Starfox07

5,442

13b, 200whp, build, fc, fc3s, horsepower, hp, hpforuma, limit, max, maximum, na, performance, power, rotary

na fc max power

dkaszak88 on Feb 23, 2010

Feb 24, 2010 11:23 AM
by reddozen

5,640

Mazda engine updates

Trots*88TII-AE* on Jan 28, 2010

Feb 17, 2010 05:16 PM
by vmarx7@yahoo.com

1,357

Did Mazda do this on purpose

Chuck Norris FB on Feb 13, 2010

Feb 14, 2010 11:06 AM
by peejay

1,339

13b, 13btt, 89, 94, engine, fd, jdm, rx7, staright, swap, tt

what do i need to do to swap a jap 13bTT into a 94 rx7

Powered_By_Rx7 on Jan 3, 2002

Feb 11, 2010 06:14 AM
by peejay

1,782

12a, area, data, durationcalculate, intake, mazda, motor, overlap, port, reversion, rx7, rx8, series, stock, timing, timming

made a chart of each stock engine's port duration/overlap

arghx on Jan 30, 2010

Feb 9, 2010 07:39 PM
by arghx

14,902

12a, 13b, 18a, 3rotor, ae86, lt16s, mazda, microtech, pp, pp12a, rotary, rotor, rx7, shaft, specs, triple, turbo

MUST SEE!! 18a PP (12a spec triple rotor)

FC3SKILLA7 on Feb 1, 2010

Feb 7, 2010 12:58 PM
by 12AllWays

11,189

1st, 9, daily, driven, end, fastest, ford, gen, ito, judge, low, performance, pro, rear, rx7, tires, worlds

Daily driven First gen Rx7 runs 9.90@140mph

(

1 2)

Judge Ito on Oct 20, 2002

Jan 29, 2010 01:33 PM
by RoTaRyBoYz

4,472

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