- 13B MFR - Sideplate wear or crack?
- enzo racing tune. 190 hp.
- Intake sizing
- Octane fuel from SL compared to 5000ft
- Trying out An N/A setup need help
- Renisis exhaust porting?
- 13B-PP dyno video
- advice on a a street car?
- Supercharger: Camden vs. Nelson
- N/A exhaust setups
- Timing advance for NA 2nd gen
- Peripheral port sleeve help?
- Comments on my Porting...
- how to tell engine's strength (fairly new rebuild)
- Building a beast
- Dyno day - worth playing with timing?
- 86 s4 base exhaust
- thorttle bodies?
- rx8 rotors in a s4
- Question on Float Drop in Nikki Carb
- block off plates?
- Help me design my project's Exhaust System
- 12a bp
- Help on injector size for 13b bridge port
- Porting pix please
- exhaust idea
- PP engine guys
- 45mm DCOE enough?
- Time for a change.......idea's welcome
- carbed my fc how do i set up 1st gen ignition?
- 12A dyno numbers
- Streetport engine questions...
- 12a bridgeport compares to?
- Miata paddle shifting conversion???
- Most PP power, dyno sheets...
- PP ID sizes....
- TWM Intake sizing
- Port Matching my intake question
- franken wankel streetport rebuild missfire issue
- Wideband failure, and suggestions for mufflers?
- RX-8 with FD trans?
- carter 500, cutting out...
- na rear end strength
- "S5 Vert Automatic Performance????"
- NA and porting, let the secrets out...
- oil pressure vs volume
- S4 and S5 Port Actuator Compatability
- Using a 3 bar map sensor on an NA
- Small Bridgeport made 240WHP
- 4 port N/A, S5 vs S6 UIM
- Oil pressure
- Weber 44 IDF for race 12a
- 13B Half-Bridge Build (huge pix 56k no way)
- Loctite instead of Devcon for PP irons?
- porting a 13B
- At a crossroads (bridge vs. street content)
- Carburetor options
- na rotors
- Intake length, and air horn length question
- NA 1/4 mile times
- Setting up a Weber 48 IDF
- what u think ill make????
- Informative: Exhaust Tuning, what part of the system actually tunes
- injector leak or exhaust leak
- 13b half bridge NA potential?
- power increase?
- NA motor with turbo intermediate and rotor housings
- Rotor Gear Mods
- 20b Teaser audio and video clip :)
- new to n/a's looking for good info
- Inglorious Basterd (not the movie, but the engine build)
- quick question
- Anyone got any long primary header pics?
- How will this header perform?
- S4 13B header advice...
- SAFC on an NA?
- Streetported N/A Question
- Renesis swap into fc
- s4 n/a rpm max
- My N/A Performance Project (Idea)
- Kerosene
- injecting a 12a
- Cheap power
- Intake Leading Edge Porting question
- Good idea/Bad idea
- header design from drag racing
- StreetPort Options
- header size?
- velocity vs noise
- 13b 6port IDA intake to a 12a 4port flange set up anybody
- opinions!!!
- are itb's worth it? questions about six port
- Detonation Issue
- reshape combustion chamber
- need a bit of help
- weld mild steel to 409 stainless?
- Fuel gauge problems
- N/A 13B-RE into FC RX7 conversion
- Anyone experimented with E85 on N/A setups?
- Converting 13b rew to na help
- Big NA intake port will not start
- Edelbrock carb with oil injection?
- TB Sizes
- Dual webber dcd carbs
- New motor has no power. Help please!
- EGTs
- t2 intake mani+6-port
- S5 'limp' mode?
- New dyno runs of PP engine
- OER Same as DCOE
- My 91 n/a coupe and its nearly 200whp
- 6port na street portd with mt4 small project
- 48 IDF, Fuel puking into the bores
- weber carb 13b in 2nd gen
- nikki carb jetting for bridgeport
- 12a bridgeport missing at revs
- Yall Be the Judge
- carbed street port 13b 6 port or 4 port?
- Acceptable mufflers in a 13B straight pipe
- down draft or side draft?
- Generic engine gasket kits
- Atkins solid corner seals and o rings
- mild steel header?
- my semi-peripheral project
- header collecter question (REPU)
- A new quest for coolness!!!
- rotary perfromance/bonez superflow system?
- dyno run of my half bridged 6-port
- Header primary lengths?
- Combine porting a 6 port to a 4 port?
- S5 6-port BP EFI hesitation question
- Making an expansion collector
- Sweden made 3rd sprk plug test
- Intake Manifold for S4
- Porting mistake and porting question
- 13 B bridgeport with Holley 600 DP tuning help!
- ITB+ Bridgeport questions
- TII transmission
- s5tii + s4na=?
- Second Gen Tach
- flywheel gains?
- carb manifold options??
- Anyone else using this?
- 3rd spark plug
- Port Matching Question
- Anti-reversion chambers?
- How much power can you make on a stock 12A midpipe?
- S5 NA, stock port dyno
- A question for the N/A 4 port EFI guys
- Port matching weber intake
- Shortening the stock s4 intake manifold?
- looking for clutch
- looking for clutch
- Backwards 13b.
- Header question
- 6port bridgeport question
- 13b mildport with webber
- What is the best combination of rotary plates to use ?
- EGT range?? What gauge?
- Removing Gears from Rotor
- Rx7 / rx8 hybrid
- Make that 230rwhp streetport 13bre n/a
- high compression rotors???
- streetport 13b
- Removing A/C from FC
- Better NA mileage w/stndalone?
- Downdraft manifolds 13B
- Anyone know where i can find a Full Build Thread of 13b with ITB's
- Now what the hell is he doing?
- find a vacuum!!
- FC EGI Project
- exhaust question
- Gouged side plates...
- Custom N/A exhaust for my turbo motor
- non-hot air intake
- spark plug porcelain shattering
- k20 vs 13b both na
- Power output estimate?
- Street ported 13b NA Question.
- NA Bridge port/ Peripheral port Dyno sheet
- Bridge Porting a 6port
- N/A 13b power capabilities?
- semi p-port
- S4 na intake to S5
- How Big is too Big- Bridge porting questions
- 2 things
- Top 5 mods for an N/A?
- Ignition!
- 12a half bridge pics
- What's Ideal 13B NA (6-Port) Port Timing?
- Mileage and Reliability of a NA 20b
- Exhaust porting: N/A full bridge, overlap?
- S5 n/a decent track car engine advice
- 216rwhp Streetport 13bre. Sure did take a while!
- custom intake manifold with pics
- GSLSE intake to the S4 intake manifold
- FB with S5 13B swap, worth it?
- Measuring Port Timing for Custom Template
- Muffler Suggestions for a S4 N/A in a Locost
- NA Tuning oddities
- Semi Pport questions
- negative impact of leaving exhaust sleeves out?
- Air Intake Temp Sensor best place
- porting/exhaust and power
- TB question for custom intake...
- need help with plans!
- Rotary Baja exhaust
- Bridgeport Tuning (timing)
- Bridgeport Rotor Housing Match?
- engine design, japan
- its rebuild time!
- Official: rx8 e-shaft thread
- NA Tuning Guidance, what do you think of my AFR's?
- carb'n question
- My ITBs (post with pics)
- S5 Turbo Oil pump
- ITB's or CARBS
- ITB options
- Need Intake Suggestions!
- PP Intake timing
- Got the itb's in now i need porting? PLEASE HELP!!
- idle problems on bridgeport
- new intake
- going n/a and have some questions about my set up
- newbie porting ????
- Bridge porting and RX-8 rotors
- How much HP from a NA 13 PP
- simple ways to make power in an N/A FC
- How much power from rx8 Rotors?
- SAE Papers
- Just some short PP questions for the knowledgeable guys
- porting question?
- Rx-8 OEM timing maps. Here they are.
- quick question on bridgeport
- Thoughts on my header's design
- Dyno'd the 13B-PP tonight
- EASY horsepower
- My first rebuild S4 to S5!!
- Cold Air Intake Question
- removing turbo
- Holley/Racing Beat/2nd gen nstall help ?
- s4 to s5 na swap
- First time carb buyer
- Basic Rotary Care??
- engine management
- Exhaust question, Diameters
- Exhaust theory
- Best Exhaust for N/A FC
- P port DIY
- 1/2 Bridge or Large Streeet Port?