Files (15)
Based on 25% main infill across listed model files
Filament only at roughly $24/kg PETG / ASA
Uses 70 mm/s, 0.2 mm layers; verify supports in slicer
Saved setup guidance is used for material, infill, support, and per-file recommendation text; editable numbers are planning estimates only.
Reference shelf
Recommended filament for this print
Product references matched to the published material guidance. Confirm diameter, heat resistance, colour, and printer compatibility.
| Referenced item | What to verify | Price & availability |
|---|---|---|
| PETG filamentAmazon · Affiliate link | Amazon product page for 1.75 mm PETG; confirm colour, spool size, print temperature, seller, and delivery region. | Check price at Amazon |
| ASA filamentAmazon · Affiliate link | Amazon product page for 1.75 mm ASA; use an enclosure and suitable ventilation, and confirm seller and regional availability. | Check price at Amazon |
Affiliate disclosure: if you buy through an eligible link, 3DPrintedCarPart may earn a commission at no extra cost to you. As an Amazon Associate I earn from qualifying purchases. Confirm product specifications, compatibility, seller terms, and vehicle safety before ordering or using anything. Amazon may redirect you to a nearby supported store; otherwise the original Amazon.com page remains available.
Unsure which one fits? Read the automotive filament guide.
Subaru WRX EJ20 Boxer Engine Model - Fully Functioning
Print this part
Use the part context as a starting point, then confirm geometry-dependent values in your slicer.
Files
15 hosted model files
STL
Material start
PETG or ASA for durability
Saved part guidance
Strength start
20-30% infill with 2-3 walls for strength and minimal weight
Saved part guidance
Orientation / supports
Likely not needed
Exact totals
50 g · 2 hours
Saved estimate
Vehicle exposure
Engine-bay exposure — use rated material or OEM
Open the STL, 3MF, or OBJ model in your slicer before printing. Exact grams, time, and final support placement come from the actual slice. Test-fit and heat-check the part before installing it in a vehicle.
License & use
The file license permits commercial reuse, subject to any applicable attribution or share-alike terms. License status does not verify vehicle fitment, OEM rights, design patents, or safety.
Shared by
Michael ChenDescription
See updated cutaway version of the EJ20 can be found here. Complete hardware kits are made for the updated cutaway model. Kits include all non printed parts, 500 rpm dc motor, speed controller, power connectors, and DC power supply. It's fully functional as in all parts move as intended in the real thing. Do not confuse it with a real engine, as this is not. This engine is slightly harder to print and assemble than my Toyota 22RE engine. So it is best to print or familiarize yourself with my previous models if you choose to print this one. The scale is once again 35% of the original which seems to be a good size for printing and finding fasteners that work and look right. The tolerances are a little tighter and depending on your printer the crankshaft might take some tweaking to get it right so that there is not interference while rotating.
Compatible Cars
Originally published on thingiverse.com · License: CC BY
Share whether this print actually fits a real car. Installed photos and material notes make the catalog more trustworthy.
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