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Smart HarD TuNinG GR

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Smart HarD TuNinG 🇬🇷

High Performance Tuning Parts
Tuning Projects :Smart Fortwo 451 & 453

“THE POWER OF A 3-CYLINDER ENGINE”

29/10/2026

🚀 3B21 MITSUBISHI FORGED ENGINE 🦾
🇵🇹 🛫 📦
▪️ SMART FORTWO 451
🔥 STAGE 3 TUNING PROJECT 🔥

Another tuning project successfully completed and shipped 🛫 📦 to Portugal 🇵🇹

A fully built performance package, engineered with attention to every detail and designed to deliver the performance this Smart Fortwo 451 deserves

A special thank you to our customer Santos for trusting S.H.T Performance with his project. Your trust means a lot to us!

Thank you, Santos 🤝

➡️ENGINE & PERFORMANCE PACKAGE

🏴‍☠️ Fully forged Mitsubishi 3B21 engine 🦾
🏴‍☠️ Complete engine rebuild👌
🏴‍☠️ STAGE 3 Turbo Tuning Kit🌪️(Discover all our available tuning kits directly on our website 📊)

⚙️EXTRA PERFORMANCE PARTS

✅ KW Suspension Variant 2
✅ AP Racing 4-Piston Big Brakes
✅ Performance Water Radiator
✅ Hardrace Performance Engine Mounts (Official Dealer)
✅ Powerflex Performance Bushings
✅ Torsen Differential
✅ AMSOIL Complete Oil Package
✅ VP Racing Stay Frosty Coolant

👉Every component has its purpose. Every detail matters. Every build reflects our commitment to performance, reliability and engineering excellence.

🌍 From Greece 🇬🇷 to Portugal 🇵🇹
☝️Built for Performance.

S.H.T PERFORMANCE 🇬🇷
Discovering success in every detail.

22/10/2026

🚀 STAGE 3 Plus ➖ Smart ForTwo 451
➡️ MHD Version to Turbo Version

👉 Another customer from Turkey 🇹🇷 trusted
SMART HARD TUNING PERFORMANCE 🇬🇷with a complete conversion from MHD to Turbo Engine Version.
👏Thank you to our customer Demirhan Yucel for trusting S.H.T Performance 🇬🇷 with this conversion. We wish you many safe kilometres and unforgettable drives with your new rocket

⚙️ PROJECT SPECIFICATIONS

✅ Complete Turbo Version Engine
✅ Full Rebuild with stock pistons & connecting rods
✅ Custom MHD-to-Turbo Plug & Play wiring harness
✅ Stage 3+ Full Tuning Kit
✅ Bigger water-cooling radiator
✅ Hardrace Performance Engine Mount (OFFICIAL HARDRACE DEALER PARTS)
✅Bilstein Suspension B14 Pss

📊 DYNO RESULTS
💻 Custom calibration of ignition advance and fuel adaptation, tailored to local fuel quality and the requirements of this setup, delivered impressive results.

⛽ 95 RON + Octane Booster
🚿 Water-Methanol Injection — 70/30 (VP M1 & deionized water)

🔴 1.40 BAR HIGH BOOST
190 HP | 246 Nm

🟢 1.10 BAR LOW BOOST
166 HP | 220 Nm

✔️ PROJECT COMPLETED SUCCESSFULLY

SMART HARD TUNING PERFORMANCE
Engineering • Performance • Precision

16/10/2026

🚀SMART FORTWO 451 ▪️
🇺🇸 USA-SPEC NA.➡️ EUROPEAN TURBO DNA

☝️Another unique project by Smart Hard Tuning | S.H.T Performance.

A fully rebuilt, 100% bolt-on Smart 451 Turbo engine, completely renewed with brand new components in stock specification materials, shipped to the USA to transform a Smart Fortwo 451 NA into a European spec Smart Fortwo 451 Turbo 🔥

👉The customer also selected our
✅STAGE 2 Performance Kit 150 HP💨🌪️

▪️Complete Engine Rebuild Fully renewed engine
▪️Performance Tuning Kit STAGE 2, 150 HP
▪️Complete Engine Wiring Harness
▪️Complete Additional Spare Parts Package
▪️ABS–ESP Control Unit Coding

👏 A special thank you to our customer Antony Panuccio in the USA for choosing S.H.T Performance and trusting us with this unique project. 🇺🇸🤝🇬🇷

➖Built in Greece. Delivered to the USA. 🇬🇷🇺🇸➖

S.H.T Performance — Built for Boost

06/10/2026

🚀STAGE 4 Plus • Forged Engine
⏺️ SMART FORTWO 451

FROM TURKEY TO S.H.T PERFORMANCE 🇹🇷🇬🇷

☝️Another complete project successfully completed by S.H.T Performance

Full engine rebuild, complete setup and final calibration carried out by our company.

👉📊Project Results

🔥 243 HP | 317 Nm | 1.75 BAR
🔥 226 HP | 289 Nm | 1.55 BAR
🔥 200 HP | 233 Nm | 1.15 BAR
⛽️ Ron 95 + Octane Booster (due to the available fuel quality in Turkey)
🚿Methanol Injection Kit
💻 13.5° ignition timing with zero timing corrections
Full methanol injection (full safe for 95 ron + octane booster )

👏Thank you to our customerErsin Tangır for once again placing his trust in S.H.T Performance.
We truly appreciate the continued trust and support.
__________________________________________

Check our website for additional information about your cars: 🖥 smart-hard-tuning.com

✉️ [email protected]
📲WhatsApp Number +30 6987987065
📞Telephone Number +30 6987987065 / +2310677810

21/09/2026

🏁🚦🇬🇷 SERRES DRAG RACE — 2026

Another chapter of the Greek Drag Racing Championship comes to an end.

For the 7 consecutive year, Smart Hard Tuning Performance was back on the track, this time with a completely new setup, aiming to take another step forward.

This weekend was far from straightforward. Repeated driveshaft failures prevented us from fully exploiting the potential of the new setup and limited our ability to put everything together for a complete pass.

But every challenge brings data, knowledge and a clearer direction for what comes next.

We leave Serres with
➡️3rd Place in ΒΤ2,
➡️ while our 11.3s @ 0–402m remains our benchmark.

✅Back to the workshop.
✅Back to development.
✅Back to the track.

SMART HARD TUNING🇬🇷
STAY TUNED 🚀🚀🚀

Ps: What comes next will be unlike anything this engine and this car have ever seen before.
Something never done before.

See you at the next race.💪☝️

30/07/2026

🔥 STAGE 4 Plus 🚀 ➖ Smart ForTwo 451

United Kingdom 🇬🇧 Tuning Project
by S.H.T Performance 🇬🇷

▪️ Mitsubishi 3B21 Forged Engine
▪️ 999cc • 3-Cylinder • 12-Valve
📈 230 HP | Low Boost – 1.35 bar (constant) 🌪️
📈 260 HP | High Boost – 1.80 bar (constant) 🌪️
⛽ RON 100 Fuel
🚿 Methanol Injection Kit

💯💪 Another Stage 4 Plus Engine Package is ready to leave our workshop.

✅Designed, manufactured and assembled at
Smart HarD TuNinG, every component is prepared to meet our engineering standards before its journey to the United Kingdom.

✅Each Engine Package is individually built, precision measured and carefully inspected before shipment.

✅Following final assembly, quality control and inspection, this Stage 4 Plus Engine Package is now ready for delivery.

👉We sincerely thank Lawrie Sharp for his continued trust in Smart HarD TuNinG. 👏

🌎🛫📦 Worldwide Shipping

Smart HarD TuNinG 🇬🇷

Check our website for additional information about your cars: 🖥 smart-hard-tuning.com

✉️ [email protected]
📲WhatsApp Number +30 6987987065
📞Telephone Number +30 6987987065 / +2310677810

07/07/2026

👉🚦11.3 seconds was only the beginning.
The Silver Drag Car is back. 🏁
The 10-second zone is loading… 🚀🔥

😘What will be revealed on this car over the coming weeks will be something truly extraordinary.
Stay tuned… The best is yet to come. 👊⚙️

01/07/2026

🚀 STAGE 5 PROJECT 🦾
🇩🇪 GERMANY

Smart Fortwo 451 Turbo Engine | 999cc | 3-Cylinder
👉 Another complete Stage 5 Smart Fortwo 451 project has been prepared, inspected and finalized by S*T Performance 🇬🇷 and is now leaving our workshop for Germany.

Thank you IK KFZ Werkstatt GmbH for your trust.👏
________________________________________

🚀 Complete Engine Build by S*T Performance 🇬🇷

▪️Engine Block
✅ Open Deck to Full Closed Deck Conversion
✅ Cylinder Boring for Ø72.25 mm Pistons
✅ CP-Carrillo Forged Pistons Ø72.25 mm
✅ Forged Connecting Rods
✅ Tri-Metal Performance Connecting Rod Bearings
✅ Complete Engine Bearing Set
✅ Complete Engine Gasket & Seal Kit
✅ Complete New Timing System
⸻
▪️Cylinder Head
✅ Full CNC Ported Cylinder Head
✅ Stage 2 Reprofiled Camshaft
✅ Oversized Ferrea Intake Valves
✅ Oversized Ferrea Exhaust Valves
✅ 12 Beryllium Valve Seats
✅ Bronze Valve Guides
✅ Performance Valve Stem Seals
✅ High-Temperature Coated Head Gasket
✅ Optimized Combustion Chamber Design
✅ Cat Cams Performance Valve Springs
✅ ARP Head Stud Kit
⸻
▪️Performance Tuning Parts
✅ Performance Decat Exhaust System Ø54–51 mm
✅ Performance Exhaust Manifold
✅ Performance Clutch Kit (3000951038RS)
✅ Lightweight Flywheel
✅ Lightweight Crank Pulley (295 g)
✅ Performance Intercooler
✅ Custom Racing Air Intake – Version 2
✅ 450 cc High-Flow Fuel Injectors
✅ Performance Ignition Coils
✅ NGK Iridium Spark Plugs
✅ 45 mm Throttle Body

✅ Custom Stage 5 Hybrid Turbo
• Anti-Surge Compressor Housing
• Custom Billet 7+7 Compressor Wheel (40.5 / 52 mm) & Point Milling Drawing
• 9-Blade Turbine Wheel (38 / 43 mm)
• Turbosmart Performance Wastegate

✅ Remap ECU Engine 📈
✅ Remap TCU Transmission (7000 RPM) ⚙️
✅ Performance Aluminum Radiator
✅ Hardrace Performance Engine Mount
✅ Torsen Performance Differential
✅ Ceramic-Coated Intake Manifold
✅ Complete Methanol Injection System
✅ AEM Wideband AFR Controller
✅ iBoost Full Version with CAN Bus

🔝 Built with precision. Engineered for performance.

🌐 Check our website for more information:
smart-hard-tuning.com
✉️ [email protected]
📲 WhatsApp: +30 6987987065
📞 Tel: +30 6987987065 | +30 2310677810

22/06/2026

🚀Smart ForTwo 451 Turbo Engine
STAGE 3 - 185HP & 245NM Torque

👉Another Smart 451 Turbo has arrived from Bulgaria 🇧🇬 at Smart HarD TuNinG GR 🇬🇷 for a complete Stage 3 performance build .

ℹ️STAGE 3 Project & Forged Engine 🛠️🦾
▪️3B21 Mitsubishi Forged Engine Block
▪️Cylinder Head Refresh with New Gaskets, Seals & Service Components
▪️Stage 3 Performance Calibration & Final ECU Tuning

Target Output:
📈🔥 185 HP
📈🔥 245 Nm Torque
⛽️ Ron 100
🚘 Daily car
🌪️💨High Boost 1.35 Constant Pressure

Despite the high ambient temperatures (34°C), running on 100 RON pump fuel only and without any methanol injection, the engine is performing flawlessly with drivability and smoothness that would make even a factory Smart 451 jealous.

Knock correction remains exceptionally low at around -1.5° across all 3 cylinders, while fuel trims stay within - + 4% all the way to the rev limiter, demonstrating a mechanically healthy and properly calibrated engine package.

▪️ COMPLETE BUILD SPECIFICATION & PARTS LIST
⏺️Forged Engine Block Parts & Head Engine Repair
✅CP Carrillo Forged Pistons 72.25mm
✅VPR Forged Rods
✅Cat Cams Springs Valve
✅Bronze + Cast Iron Valves Guides 6+6
✅Full Set Bearing- Full Set Timing Kit Engine
✅Valves TRW
✅Head Engine Performance Thermal-Coated
✅ARP Head Studs Kit

⏺️STAGE 3 Tuning Parts
✅Hybrid Turbo TD025 STAGE 3
✅Wastegate Turbosmart
✅Intercooler Performance
✅Throttle Body 45mm
✅Clutch Kit Performance 3000951038RS
✅Pulley Crankshaft Lightweight 295g
✅Flywheel Lightweight 3.8kg
✅Bigger Injectors 450cc
✅Spark Plug Iridium NGK
✅Performance Hardrace Engine Mount
✅Full set Engine Mount (left-Right)
✅I boost Control
✅Aem Wideband
✅Remap Ecu Engine 📈
✅Remap TCU ⚙️

⏺️AMSOIL Full kit & VP Performance Coolant
✅Break -in oil
✅5W-40 Full Synthetic
✅75w-90 Severe Gear
✅Oil Filter Amsoil
✅VP Performance Coolant STAY-FROSTY

Thank you for your trust Kanata Gospodinov 👏

We wish you many and safe kilometers with your new Stage 3 Smart 451. 🚀

Another Smart 451 turbo project successfully completed. ✅
Trusted by Smart owners across Europe. 🚀

▪️S.H.T Performance 🇬🇷▪️

10/06/2026

🚀🇬🇧STAGE 4Plus Tuning Project
🔬Smart ForTwo 451

▪️3B21 Mitsubishi Turbo Engine
▪️3 Cylinder-999cc-12Valves
➡️Stage 4Plus 260HP Tuning Project
➡️Fuel ⛽️ Ron 100 & Methanol Kit 🚿

👉☝️Another international 🌎 project completed by Smart HarD TuNinG 🇬🇷

This Smart Fortwo 451 Turbo from the UK 🇬🇧 returned to our workshop after previously receiving our Stage 3 Turbo Engine Package.
Following a full season of use, the owner decided to take the next step and upgrade to our complete Stage 4Plus specification.

This project is another example of the advanced Mitsubishi 3B21 performance packages developed and assembled by Smart HarD TuNinG🇬🇷

🦍Presentation STAGE 4 Plus 💎
➡️ENGINE BLOCK▪️
Full forged engine build
✅Closed-deck block conversion
✅CP Forged Pistons 72.25mm
✅Forged Connecting Rods
✅Tri-Metal Performance Bearings
✅Precision Crankshaft Balancing

➡️CYLINDER HEAD ▪️– STAGE 4Plus 💎
✅Full Porting & Flow Development
✅Oversized Ferrea Intake Valves
✅Beryllium Intake Valve Seats
✅Bronze Valve Guides
✅New TRW Exhaust Valves
✅Performance Valve Stem Seals
✅Titanium Retainers
✅Stage 2 Valve Springs
✅Stage 2 Reprofiled Camshafts

➡️ENGINE ASSEMBLY ▪️💎
✅Performance Thermal-Coated Metal Head Gasket
✅Complete Timing Chain Kit
✅ARP Head Stud Performance

➡️AIR & TURBO SYSTEM ▪️💨🌪️💎
✅Stage 5 Anti-Surge Hybrid Turbo TUFD025
✅Race Specification Intake System
✅Aluminium Intake Pipe
✅High Flow Performance Air Filter

➡️DRIVETRAIN & ELECTRONICS ▪️⚙️ ⚡️ 💎
✅Torsen Limited Slip Differential
✅CAN-Bus iBus Controller
✅Full Version Methanol Controller Kit

👏👏A special thank you to our customer for the continued trust our company
We wish him many safe and enjoyable miles with his upgraded Smart Fortwo 451 and every success with his new little rocket.

Enjoy it in good health, and thank you for being part of the Smart HarD TuNinG family.
Chris Pearson 💪💪

Built in Greece🇬🇷
Driven in the United Kingdom🇬🇧

Smart HarD TuNinG🇬🇷 – S.H.T Performance🇬🇷

Address

Atreidwn 22 Thessaloniki
Thessaloníki
54249

Opening Hours

Monday	09:00 - 19:00
Tuesday	09:00 - 19:00
Wednesday	09:00 - 19:00
Thursday	09:00 - 19:00
Friday	09:00 - 19:00
Saturday	09:00 - 16:00

Website

https://smart-hard-tuning.com/

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