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Project JDM
Stage 2
FD3S

FD RX-7 Stage 2 Single Turbo

BorgWarner EFR single turbo with rebuilt internals, standalone ECU, and full supporting mods.

Mazda RX-7420–500 hp target~79h total install12 parts
Build Steps

Parts List & Install Order

Required Parts · 9
  1. 1
    BorgWarner BorgWarner EFR 7670 Turbo Kit (13B)
    Expert16h install+120–220 hp4.8

    Single turbo

    $3,999.00

    from 2 suppliers

    Buy
  2. 2
    GReddy GReddy V-Mount Intercooler (FD)
    Advanced8h install04.7

    FMIC

    $999.00

    from 2 suppliers

    Buy
  3. 3
    DeatschWerks DeatschWerks 850cc Primary Injectors (13B)
    Intermediate3h install04.7

    Injectors

    $329.00

    from 2 suppliers

    Buy
  4. 4
    Haltech Haltech Elite 2500 ECU (13B)
    Advanced8h install04.8

    ECU

    $3,493.35

    from 2 suppliers

    Buy
  5. 5
    Boundary Boundary Billet Oil Pump (13B)
    Expert12h install04.9

    Oil pump

    $349.00

    from 2 suppliers

    Buy
  6. 6
    Goopy Goopy Performance 3mm Apex Seals (13B)
    Expert20h install04.7

    Apex seals

    $249.00

    from 2 suppliers

    Buy
  7. 7
    ACT ACT Heavy Duty Clutch (13B)
    Advanced6h install04.4

    Clutch

    $499.00

    from 2 suppliers

    Buy
  8. 8
    Koyo Koyo Aluminum Radiator (FD RX-7)
    Moderate2h install04.7

    Radiator

    $349.00

    from 2 suppliers

    Buy
  9. 9
    BC Racing BC Racing BR Coilovers (FD RX-7)
    Intermediate4h install04.6

    Coilovers

    $1,195.00

    from 2 suppliers

    Buy
Optional Upgrades · 3
  1. 96
    Enkei RPF1 17x9 +35 Wheel
    ×4
    4.9

    Set of 4 lightweight forged wheels

    $1,380.00

    from 2 suppliers

    Buy
  2. 98
    Mishimoto Compact Baffled Oil Catch Can
    4.6

    Keeps intake clean on turbo builds

    $112.75

    from 34 suppliers

    Buy
  3. 99
    AEM X-Series Wideband UEGO AFR Gauge
    4.8

    Essential for tuning; mount in A-pillar pod

    $199.99

    from 2 suppliers

    Buy
Cost Summary
Required parts (9)$11,461.35
Optional upgrades (3)+$1,692.74
Total (best prices)$13,154.09
Prices from lowest available supplier. Does not include shipping or labor.
Research Sources
Community Attribution
RotaryLife_FD
RX7Club.com

Complete FD single turbo conversion with street manners and 400whp

View original build thread

Community builds are sourced from public forums and social media. Parts lists may have been adapted for clarity. Always verify compatibility before purchasing.