RX-7 FD3S Single Turbo Conversion: Garrett GT3582R Install
RX-7 FD3S Single Turbo Conversion
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Mazda RX-7
FD3S (N/A)
Power
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0-60
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Top Speed
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Current Market Value
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20-30 hours
Garrett GT3582R Single Turbo Conversion
Mazda RX-7 (FD3S)
Estimated Cost
$6,000-$7,700
Parts: $4,500-$5,500
Labor: $1,500-$2,200
Horsepower
+150-200 hp (400-450 whp on 100 RON race fuel)
Torque
+60 lb-ft
Response
Slightly more lag than sequential (full boost 4,500 rpm vs 4,200)
Prerequisites
- • Engine compression test (rotary-specific — 80+ psi cold idle per face)
- • Oil injection system verified working
- • Apex seals confirmed healthy via compression balance
- • Standalone ECU mandatory (PowerFC or Haltech)
- • Fuel system fully upgraded
Installation Progress0%
Installation Steps
1
Remove entire sequential twin turbo system
8-10 hours
Both turbos, sequential boost control solenoids, vacuum tubing (40+ connections), PARTF charge piping, top-mount IC
- • Photograph vacuum routing before disassembly
2
Remove stock exhaust manifold and downpipe
2 hours
3
Install single turbo manifold
1.5 hours
4
Mount GT3582R to manifold
1 hour
5
Install external wastegate
1 hour
6
Route oil feed from factory pressure sender port
1.5 hours
7
Weld oil return bung to pan and route -10 AN drain
2 hours (with welding)
8
Fabricate 3.5-inch downpipe
3 hours
9
Remove top-mount IC, install ARC front-mount
3 hours
10
Route intercooler piping
2 hours
11
Install BOV between turbo and IC
30 min
12
Eliminate ALL unused vacuum lines
1 hour
13
Upload base map to standalone ECU
1 hour
14
Prime and first start
1 hour
15
Dyno tune - progressive boost increases
6-8 hours
Parts Required
All parts needed for this modification
Garrett GT3582R ball bearing turbo
Quantity: 1 • $1,800
RE Amemiya or BHR single turbo manifold
Quantity: 1 • $850
Turbosmart 45mm external wastegate
Quantity: 1 • $450
Tial 50mm BOV
Quantity: 1 • $220
Downpipe 3.5-inch V-band
Quantity: 1 • $320
ARC Mini intercooler
Quantity: 1 • $780
3-inch intercooler piping kit
Quantity: 1 • $260
Oil feed/return lines -4/-10 AN
Quantity: 1 • $95
Tools Required
Engine hoist
Rental: $50/day
Rental
Die grinder
Rental: $25/day
Rental
Welding equipment
Rental: $80/day
Rental
Metric sockets + extensions
Common
Supporting Modifications
Additional mods recommended or required for optimal performance
Upgraded fuel injectors (1000cc primary, 1600cc secondary)
required
Stock injectors max at ~320 whp
Walbro 460 fuel pump
required
Stock pump inadequate for high boost
Streetport or race porting
recommended
Opens intake/exhaust ports for better flow — 40+ hp gains
3rd radiator fan
required
Rotary runs hot under sustained boost
Tuning Requirements
ECU Flash Required
Dyno Tune Required
Estimated Tuning Cost
$1,500-$2,500
Rotary tuning is specialized — find tuner experienced with 13B-REW. Oil injection MUST remain functional. Pre-mix 2-stroke oil in tank at 150:1 ratio as safety measure above 350 whp.
Disclosure: We may earn a commission from purchases made through affiliate links on this page. This helps support our comprehensive modification guides. See our full disclosure policy.