"TUNED" 2021 Subaru WRX FA20DIT Engine Has CATASTROPHIC FAILURE At Just 95,000 Miles! Its Destroyed!

For Subaru parts go to www.pmpautogroup.com or email [email protected]. For parts for non-subarus, visit www.Importapart.com or email us at [email protected] Every week I tear down another blown up or suspected bad engine much as I have done for the last 4+ years. Some of my favorites are: GM 3.0L Duramax Diesel W/45K Miles https://youtu.be/6C6xgZs9uUs Nissan Rogue 1.5L Variable Compression? https://youtu.be/Wqccs9XjMKs Ford F150 3.5 Ecoboost Gen2 https://youtu.be/CfON7X5j6X0 Bentley/Rolls Royce 6.75 Litre Teardown https://youtu.be/4dUZ-yHik7A Today we have another fine Subaru specimen for teardown. This is the FA20DIT from a 2021 WRX with just 95K miles. This engine is from a modified car that blew up, was sent to the auction and bought by a shop close to my buddy Pete's Subaru only salvage operation. Pete sold him a good used engine, and this was returned as a core. So how did this one blow up? Why? As many know, the WRX is a very commonly modified car and there are varying degrees of "good" and "bad" modifications. Every engine has a limit, and it's only as strong as its weakest link which is what I think happened here. This engine was pushed TOO hard! So what failed? What can be done to keep this from happening in the future? We dive into this engine to tear it down and find out those answers as well as what parts survived this catastrophic failure. The 2.0L FA20DIT is a timing chain driven turbo boxer 4 cylinder that superseded the EJ20/25. These engines produced 268hp in factory trim and seem to address many of the failures of the previous generation of engine, but that doesn't stop people from pushing the limit of what they can handle. Why am I doing this? My name is Eric and I own and run Importapart, a full service auto salvage business. Part of our model includes buying and dismantling blown up and core engines to dismantle. We resell the good usable parts and recycle the rest. We don't rebuild engines, merely supply parts to those who do. As always I really hope you enjoyed this teardown. I love all of the comments, feedback and even the criticism. Catch you on the next one! -Eric 00:00 Intro 04:35 Pulling the spark plugs and inspecting them. UH OH! 05:29 Starting to peel the upper intake manifold off 07:02 I can see the inside, from the outside 09:13 Removing the coolant crossover to reveal the extent of the damage 10:02 Fighting the wire harness to the very end 11:49 A peak down the intake ports... YUCK ALMIGHTY 14:35 Unbolting the turbo and related parts and inspecting it 15:54 Tackling the timing cover removal. So. Many. Bolts. 16:55 Zipping the crank pulley bolt out 18:17 The Timing cover has the same glue that holds airplanes together 20:04 Inspecting the timing system, and CAREFULLY removing all components 22:19 Unbolting the RH Valve cover, Cramming the cam craps loose, and inspecting the valvetrain 27:02 Cracking the RH Head bolts loose and pulling the cylinder head off of the block 27:42 First look at the bores and MAJOR DAMAGE! 28:20 SCIENCE ROUND ONE 29:13 Unbolting the removing the LH Valve cover. OH, OH, That's bad. 30:31 Crammin' the Cram Caps loose, ONE pesky camshaft I tell ya 33:07 Inspecting the LH Cams, cam caps and the damaged lifter/rockers 34:37 Cracking the LH Head bolts loose 35:08 Lifting the LH Head off of the block and MONEY SHOT! 36:21 SCIENCE ROUND TWO? 37:06 Unbolting the removing the lower oil pan. WHAT GIFTS YA GOT PARTY PLATTER? 38:14 THE LOOT 39:35 RIP TO OUR FALLEN PIN 40:12 Water pump removal 40:50 PMP Auto Group if your Subaru Parts Source! 42:10 Unbolting the upper oil pan... I didn't think this one through LOL 43:48 HEY THOSE DONT GO THERE 45:08 Unbolting the remaining rods and pistons and pushing them out of the block halves 46:42 Gettin' the block clampin' bolts loose while its on the stand 47:44 A few more bolts out and splitting the engine case on the bench 49:27 Complete rotating assembly inspection, rod bearings crank, pistons, rods, rings, bores and block! 52:59 Summary