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I have a 1993 Montego Blue Metallic base model Mazda RX-7. I use it on the street, for time trials, and an occasional AutoX or drag race. The goal is to make it a reliable and consistent performer with a lot of power available and have the brakes and handling to keep it all in balance. I'd probably have better lap times if I spent all the time and money I have in the car on myself with some driving schools and more seat time, but the truth is that I like tinkering with the car so I built the hell out of it.

I popped the motor after some tuning mistakes and decided to rebuild it with the new R85 turbo kit and a custom front-mount IC, with some custom ducting and radiator mounting. I decided to try some Evans NPG+ coolant to see how that works, since I overheated the last setup a few times under extreme conditions. I am also experimenting with some ceramic coatings on the rotors and manifolds. I don't have it back from the shop yet, but it is almost ready to come home. I've got to break it in and tune it and then I will post some dyno charts and go do some open track events (it's been too long!).



  • 4-piston AP, 13" rotor brake kit from N-Tech Engineering
  • SS pistons for AP calipers from Essex
  • Rear: Wilwood NDL 4-piston brake calipers, Widefoot caliper brackets, 2-piece rotors from Precision Brakes Company in the Mazda RX-7 RZ (12.2"x0.8") size
  • Brake master cylinder from Mazda 929 (1" bore versus the stock 15/16")
  • Ferodo DS2500 street pads, DS3000 track pads F&R from Essex
  • SS brake lines


Wheels, Driveline & Pulleys

  • SR Motorsports water pump and alternator underdrive pulleys, that I had stripped, polished and re-anodized red (they were blue)
  • Exedy Hyper Single clutch and flywheel assembly (it's a single disc clutch constructed much like a multi-plate, including a forged clutch cover, sprung puck disc, and a light steel flywheel)
  • Volk SE37K wheels with 245 and 265/40-17" Bridgestone Potenza S-03 tires for the street
  • 18x10" CCW wheels with 285/30-18 BFG g-Force R1a tires for the track (time for some new rubber!)
  • SS braided clutch line from Crooked Willow Racing


  • N-Tech high flow cat
  • RS*R dual tip, painted 409 stainless exhaust


Mazdatrix rebuilt my engine, including:

  • Street port
  • Ianetti 2mm 1-piece ceramic apex seals
  • Rotary Aviation water o-rings
  • Thermal barrier coating on rotor faces from Swain Tech
  • Ceramic coated upper and lower intake manifolds, ceramic coated GReddy elbow, coatings by Embee Peformance
  • Block-off plate kit from RX-7 Store

Turbo & Turbo Control

  • Reactive Racing / KG Parts R85 turbo kit (includes SS manifold, turbo, Tial wastegate, downpipe, air filter, hardware)
  • Custom front-mount IC built from Pettit 20B vertical-flow IC core, and significantly reworked by Performance Solutions to create/change the mounting, ducting, and pipes for my setup
  • Tial BOV from Extreme Motorsports
  • A'PEXi AVC-R boost controller from Titan Motorsports

Cooling System

Fuel System

Ignition, Electronics & Instrumentation

  • HKS TwinPower ignition box and harness, purchased from Rotary Xecret (07 Oct 2001)
  • A'PEXi PowerFC engine control unit from SR Motorsports
  • FC-Datalogit control and logging device for PowerFC (cool product!)
  • Oz DIY-WB wideband oxygen sensor
  • PFS boost gauge, in RE Amemiya steering column mount from Phase 2 Motortrend
  • SPA dual digital gauges (OT/OP and WT/FP) custom mounted in stock dash (replacing the stock OP and WT gauges)
  • N-Tech small battery and tray/mount (Odyssey PC680 - just 15 lbs!)

Other Stuff

Soon to be installed

  • Camera mount from ioport racing
  • 2-position adjustable rear sway bar from Tri-Point Engineering (might install if I think it needs more rear roll stiffness)

What's next

  • Break-in and tuning!
  • Pop-off valve to protect engine against overboosts

Last Updated: 20 Feb 2005



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