Technical Info
Subaru Intake Manifold Dope
Subaru EJ Intake Manifold Flow Bench Results – Real SuperFlow 1020 data at 28" H₂O: averages from 290 CFM (stock 09 WRX) to 381 CFM (ASF Monstrosity reversed). Highlights velocity-preserving...
Subaru Intake Manifold Dope
Subaru EJ Intake Manifold Flow Bench Results – Real SuperFlow 1020 data at 28" H₂O: averages from 290 CFM (stock 09 WRX) to 381 CFM (ASF Monstrosity reversed). Highlights velocity-preserving...
Finishing First Requires Proper Finish
Mastering Engine Honing: Achieving Optimal Surface Finishes for Peak Performance In the realm of engine rebuilding, nailing the right surface finish on cylinder bores, block decks, and cylinder heads is...
Finishing First Requires Proper Finish
Mastering Engine Honing: Achieving Optimal Surface Finishes for Peak Performance In the realm of engine rebuilding, nailing the right surface finish on cylinder bores, block decks, and cylinder heads is...
The Truth About your STi Shortblock
If you're deep into Subaru EJ257 engine builds — whether for street tuning, reliability mods, or just satisfying your inner machining nerd — you've probably heard whispers about the differences...
The Truth About your STi Shortblock
If you're deep into Subaru EJ257 engine builds — whether for street tuning, reliability mods, or just satisfying your inner machining nerd — you've probably heard whispers about the differences...
Why 91 Octane Is A Thing
You might have noticed that many gas stations West of the Rockies top out at 91 octane. This isn’t just a regional quirk; it’s a result of a complex...
Why 91 Octane Is A Thing
You might have noticed that many gas stations West of the Rockies top out at 91 octane. This isn’t just a regional quirk; it’s a result of a complex...
The Best Direction With Direct Injection
Modern high-performance engines like the Subaru FA20DIT, Porsche 9A1, GM LT5, and Audi DAZA boast impressive power thanks in part to direct injection (DI) technology, turbocharging and high compresssion...
The Best Direction With Direct Injection
Modern high-performance engines like the Subaru FA20DIT, Porsche 9A1, GM LT5, and Audi DAZA boast impressive power thanks in part to direct injection (DI) technology, turbocharging and high compresssion...
Subaru EJ25-EJ20 Hybrid Builds
Bolting EJ205 cylinder heads onto an EJ257 block can be quick and fairly affordable way to get an old 2.0L car back on the road. It can also create some...
Subaru EJ25-EJ20 Hybrid Builds
Bolting EJ205 cylinder heads onto an EJ257 block can be quick and fairly affordable way to get an old 2.0L car back on the road. It can also create some...