PROJECT 04 · BUILD IN PROGRESS

Nissan S14.
240SX.

The vision drives the build.

An active development project bringing together widebody fitment, 3D scanning, CAD, fabrication, and performance-system integration.

BUILD PARTNERARC RIDER AUTOWERKS

Fitment developmentReverse engineeringSystem integration

View RealTime_OS build progress ↓

Green widebody S14 240SX concept render — BUILD CONCEPT · FITMENT & PAINT DIRECTION

01 / STARTING POINT

A platform with potential.

The car arrived as a complete but unfinished project. The concept sets the direction for fitment, component selection, and integration as development progresses.

The S14 as acquired, ready for the next phase of development.

Side view documenting the starting condition of the project.

02 / WIDEBODY FITMENT

Stance, clearance, and alignment.

Fitment development brings the concept back to the physical car: checking panel alignment, wheel clearance, and stance ahead of final fabrication.

Front-view fitment check with the widebody panels in place.

Side-view check of stance, clearance, and body alignment.

03 / TEARDOWN & PREPARATION

Clear the space. Assess the foundation.

The teardown focuses on cleaning the chassis, simplifying systems, and preparing for drivetrain integration. These stages document the condition and layout before custom fabrication.

Engine-bay teardown ahead of drivetrain integration.

Stripped engine bay showing the chassis layout and preparation work.

04 / CHASSIS DEVELOPMENT

Building the mounting structure.

Roll-bar integration and chassis reinforcement establish mounting structures for the next stages of the build.

Mount fabrication for the roll-bar installation.

Roll-bar integration and chassis reinforcement work.

05 / CHASSIS HARDWARE

Fresh finish for the chassis hardware.

The crossmember, sway bar, knuckles, and mounting brackets now share a fresh black powder-coated finish, bringing the chassis components together for the next stage of the S14 build.

All powder coating by Adam at Rimdude LLC.

For powder coating work, contact Adam at RimDudellc@gmail.com.

Black-finished S14 crossmember, sway bar, knuckles with brake dust shields, and mounting brackets arranged on a red cloth. — Chassis hardware after powder coating by Adam at Rimdude LLC.

Close-up of the black finish on the S14 crossmember, showing its surface texture and gloss. — A closer look at Adam’s powder coat work on the S14 chassis hardware.

06 / TUBE FRONT-END INSTALLATION

The new front structure.

Front-end fabrication and installation are complete. Elite Fab Works installed and welded the Humble Engineering tube front kit, with the radiator and intercooler in place. The latest fitment photos show the front bodywork mocked up around the tube front and cooling package. Permanent panel attachment is still to come.

S14 stripped front structure and exposed chassis rails before the tube front installation. — Before — stripped front structure ahead of the tube front installation.

Three-quarter view with the intercooler in place and the widebody fenders fitted. — Tube-front fabrication and installation by Elite Fab Works; bodywork shown during fitment.

Exposed tube front with the fenders removed, showing the side tubes and radiator support.

Close-up of the welded tube junction and bolted front connection.

Straight-on view of the S14 front bodywork in mock-up with the tube front, radiator, and intercooler visible. — Front bodywork mocked up around the tube front, radiator, and intercooler. Permanent panel attachment is still to come.

Angled view of the S14 front bodywork mocked up around the tube-front structure and cooling package. — Angled fitment view of the front bodywork around the cooling package.

07 / ENGINE PROGRAM

Final assembly of the 5.3L short block.

Arc Rider Autowerks is carrying out final assembly of the 240LSX short block. The pistons and connecting rods are now in the block as the bottom end comes together.

The combination features a BTR forged crankshaft and H-beam rods, Wiseco Boosted LS pistons, Clevite coated bearings, and a Cam Motion turbo camshaft.

Wiseco pistons installed in the 5.3L LS block during assembly at Arc Rider Autowerks. — Wiseco pistons installed as the short block comes together.

Underside of the 5.3L LS block showing the crankshaft, connecting rods, and main caps. — A look inside the bottom end during assembly.

BTR connecting rod assembled to a Wiseco piston for the 240LSX engine build. — BTR rods and Wiseco pistons paired for the rotating assembly.

Cam Motion turbo camshaft in its open shipping box. — Cam Motion turbo camshaft selected for the 240LSX engine build.

Tremec transmission in its open shipping box, showing the housing and shifter. — The missing link: Tremec transmission on hand for the 240LSX drivetrain.

Red McLeod RXT clutch and flywheel in the open shipping box for the 240LSX drivetrain. — McLeod RXT clutch ready for the 240LSX drivetrain.

08 / INTERIOR SCANNING & CAD

A custom S14 housing for the Holley EFI Pro Dash 6.86.

Blue Beaver Concepts is developing a custom digital dash housing for the Nissan S14 240SX, designed around the Holley EFI Pro Dash 6.86 display. Scans of the factory cluster housing and dashboard guide placement, clearances, and mounting geometry. The latest CAD revision adds a separate, removable visor to the recessed display housing. A 3D-printed prototype will be used to check fit in the car.