- 12a rebuild questions
- Calculating optimum CFM for rotaries
- Exhaust: Mid collected dual vs. true dual?
- which injectors for my n/a 13b
- First time porting tips.
- Gasket to Exhaust Port Mismatch
- What to do with 13b in caterham 7
- 4 rotor power out put
- 13B carburated build questions
- Why did you stay n/a?
- input? na power and thoughts
- 2013 V 4 & Rotary Nationals - World's first public viewing/startup of the 6 Rotor
- 6 port daily driver engine
- What auxiliary gauges you using in your NA builds?
- RX8 Motor Swap
- 44 idf and intake omp linkage ?
- Hitting 200. Need recommendations.
- individual throttle bodys
- Intake questions for 12a bp...
- Grocery list
- Decreasing Port Size
- weber 48 ids or idf?
- Ceramic coatings - lower & upper intake
- measuring port timing
- blow by on heavily modded n/a's??
- High comp Rew semi p NA
- Peripheral port shape
- Mindtrain header primary length
- Oxygenated Race Fuels
- NA 20B ITB intake manifold worth saving? Pics
- Long primary length
- Peripheral Port 13b Build
- Air Inlet Temps
- sticky video walk around of your build!
- 13B Semi pp exhaust for a daily.
- Quick muffler question
- Street porting
- Thinking about porting my spare s4 irons
- Low power, NA tuning.
- S3 Stockport with Dellorto DHLA 48
- raising compression?
- NA 6 port half bridge build (zenki FC)
- using 36/36 DCD instead of the famous 28/36?
- Is two better than one? 12a
- Na build tell me what you think
- Trouble Finding answers
- How do I build a bridgeport??
- Is my dream just a dream or possibly reality?
- Cooling fan kicks on at cold start?
- Exhaust porting oops - problem?
- Possible engine rebuild
- rotor race clearencing (side face and tip, plus apex seal clearencing), who does it?
- VDI an 5/6th port reinstall questions
- Path to NA gains?
- here we go again: To bridge primaries or not!
- pp holley intake
- High temp exhaust packing?
- I need help tuning my 90 vert N/A
- new videos
- please help. starting problem.
- S5 SP mod/tuning potential
- 13B PP Ignition breakup
- Need suggestions for 13bPP setup
- Torque gain
- 13b powerband
- Not Sure What's Happening
- Injector sizing Q&A
- Sand Dragster headers 13B 6port
- Adjustable Fuel Pressure Regulator for S4
- tuning difference's between 6 port/4 port
- E Production Ports
- pp intake design. advice wanted
- itb's and runner length
- ITB Dyno Session
- High horsepower street port
- Modding the Vert
- reducing backfireing
- another rtek or not thread
- rtek or not to rtek? That is the question
- Mallory Ignition Coils for Hyfire 6AL
- How does a K&N air filter make your n/a sound?
- K/N Fitercharger Intake Kit on S5? Need Some Input Please
- question on building an shallow oil pan.
- power gains on a budget?
- injector size on 13b peripheral port
- removing stock s4 exhaust manifold
- Comments on compression video
- not sure which exhaust to run anymore on 13bre NA
- 1988 13b semi pp build
- Will this work on an FC N/A..Blitz Air Filter
- coolant problems
- Yet Another Exhaust Thread (Again) - RB long primary system
- timing problem...
- What is my engine build from?
- port actuators?
- any opinion on the corksport header for fc?
- S5 pineapple large street port
- corksport PS header review
- s4 213,000 miles dyno
- Another thread about exhausts
- Time attack 1981 RX-7 with M2R 13BPP Build
- How much power from 6 port
- How to increase power at high rpms?
- P-Port Build
- 4 port na drift moter
- Turbo rotor's in N/A motor
- PP engine ?
- 3 1/2 minutes of brap
- My semi pp build (slow progress)
- pp na lifespan? searched
- fuel system for 13bpport
- semi pp build help
- street porting template
- Just Bought RB exhaust.. Need advice
- N/a 20b hits record 475rwhp
- 86 GXL Exhaust
- 20B NA BP semi-PP ITBs
- want to make 300 rwhp in an s4 n/a
- need help with carb on pport
- 6 port timing idea
- intake lengnth
- streetable na build
- RX7 Extra large street port project.
- Motor builders?
- stickies?
- peripheral port power brakes
- Half Bridge, 6 port, advice
- 12a first gen to carbed 13b.
- Idle after the rebuild
- itb's on another 6port 13b
- NA Bolt on's
- Super afc, yes or no
- pp 13b tuning
- Intake setup
- what do i do with this air splitter???
- looking to go FI on old school 13b
- 20b
- maybe a new project down the road
- Stock 6 port with standalone in first gen, pretty fun!!
- Now I am really frustrated.......
- 6port NA carb ignition questions
- De-Turbo'd TII, got some issues.
- has anyone ever run one of those FAST ez-efi systems
- Exhaust/Header Flange dimensions
- Fuel Injector Plug Kit
- 97 fd,13b pp?
- My NA Car
- bridgeport intake dilemma
- Intake manifold theory
- What Is a Cross Port?
- crazy new project... maybe
- racing beat exhaust setup - s4 gtu
- porting my first time with a rotary
- What are the pros and cons of wrapping your headers?
- Fast 4150 Throttle Body Assembly
- enzo tune,my full bridge t2 n/a
- Switching to S5 NA rotors and housings
- new defined auto exhaust system (video)
- More timing WTF
- need help/ ideas
- PPort Housings
- 20c engine
- i wanna go fast!!! plz help
- are these AFR's all over the place? Vid inside!
- Some fun in the ol' bridgeport
- need help with timing
- Unusual noise - detonation? (Video inside)
- Finally got the guts...
- need help w/-110dB Road Race exhaust system 13B n/a bridgeport
- New to ITBS
- Rough Idle - Help
- more power!!
- Electric Die Grinder Advice
- Opinions on 13B S5 6 Port Weber DCOE setups
- first time porting, how do they look?
- need to get a little faster
- Porting, What do you guys think?
- Wideband Recommendation
- 13b Semi PP engine...
- Fuel Pressure and Grose Jets
- my full bridge build t2 n/a
- e85 switch
- Dyno day: Dip in torque?
- Wiring effin issues
- 12a PP dyno
- Starlet 13B PP EMS R-tech
- what exhaust size r u using.
- 89 gtu radiator
- advice on which irons to use, max street port
- Intake air temp sensor Microtech NA S5
- Exhaust sleeve needed ona full bridge?
- 20B long primary exhaust project
- s4 13b na carbed
- E85, E100, Meth/Alchohol and carbs
- Ignition coil thread
- ITB bore diameter.. how little is too little?
- Does anyone have a Microtech Lt-8 Stock FC S5 NA 6 port Map?
- 13B Peripheral Port Exhaust
- Do race plugs make more power? Well, not really
- How much whp can 2x ID1000's provide?
- Haltech 6-port S5 Fc Project
- bridge at idle
- ITB injector size
- EFI ITB set ups
- Melted Spark Plug on Bridgeport
- Need help!
- comments on my porting
- pineapple sp templates
- Need Idea's
- help me build a 300+ 13b pp race engine
- Intake Manifold's Semi PP and a few question's
- Who here gets 30+ mpg?
- How much is my ported motor worth?
- stock 6 port primary lengths??
- Starting with a Standalone
- Looking for R+D testers for Defined Auto promo headers
- what have you done with your 6-port?
- .
- Stock port renesis dyno'd
- gota b more ppl out there doin n/a perfomance
- Need help ID this engine
- TII Block, NA build.
- thought's of using a REW intake on 6port
- Clearancing for high RPM
- Weber DCO/SP 48 = DCOE 48?
- PP entry angle
- Semi p-port n/a 20b results and discussion. 421rwhp
- semi peripheral port who has one
- Looking for video... (SA 13b PP)
- Degree wheel for port timing?
- 12a tow truck
- Mazda furai
- Engine Management options for SP NA?
- what's everyone's opinion on heat wrap?
- Drifting with an N/A
- Manifold Quandary
- anyone ever ... (4 rotor ???)
- petrol to alcohol gains
- E-shafts and 3/4 rotor questions
- 13B MFR - Different castings on rotary housings and how to identify?
- 2010 Time Trial S NASA National Champion!
- Suggestions for S5 NA Custom Exhaust Build
- changing intake opening and closing on a turbo engine for NA use
- Atkins Designed Six Port Actuator Valve Kit
- Holley Jets in a 13b Street Port
- 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