EVO 6 Engine Failure - What Went Wrong?

[@jman566]

Hey guys don’t let the negative comments get to you most of us love all the content you guys put out especially the engine builds 👍

[@dancarlos1216]

And at the end of the day, they still have an R34 GTR!

[@Mr_jz_12]

@@faabill4953 Built my car myself. Only help i had was old motor out and new motor in and dialing in the tps. Rest was all me. There is "owning up" and there is owning up.

[@plumberman19]

William Barrett yeah, they have nothing to own up to(except maybe using the wrong plugs(not cold enough)). This wasn’t a failure due to engine assembly, it was the tuner.

[@1Seall7]

no learning without a failure. good work guys, keep on going

[@pr0n5tar]

You've got it wrong, no failure without an opportunity to learn

[@willemveenstra2084]

With disassembly the ARP studs could have rotated with the nuts. Not decking the engine or even checking for warping was definitely the problem, and you may upgrade to a L19 of +625 headbolts kit as the 4G63 is notorious for blowing gaskets. And with that small frame turbo you will produce more cilinder pressure as with a larger turbo. Don't read the comments to much, I love what you're doing! Keep it going. PS: would appriciate that you guys would do a rebuild yourself so people can learn it's possible to fix a screwup and not have to resort to a expensive alternative. 👍🏼

[@84knocturnal]

My thoughts exactly

[@michaelallen2501]

Well said.

[@_thatslows14]

what i said without hating on them

[@plumberman19]

Your statement about turbo pressures is unqualified and dead wrong. 20psi is 20psi... and VE will determine the power made with that number. Also, 4G63s are notorious for blowing head gaskets... just like EVERY OTHER popular turbo’d engine platform(sr20, ej20, h22a, b series, etc..) minus maybe Honda’s bullet proof K series. This is simply due to the fact that it’s a popular engine(the more people that build an engine, the more they’re gonna blow up, because it’s actually hard to build a solid reliable turbo engine, there’s more to it than throwing money at them). And that’s only due to the fact that the cars they came in were/are popular. Engines become popular because of cars, not because they are good engines. A properly tuned engine with a turbo can make whatever power you want, with the right mods. And ones that come factory turboed just need less mods, that’s all. But, poor tuning ie. too much timing, not enough fuel... will cause higher cylinder pressures if those conditions cause preignition, not the “frame” of the turbo. Turbo size simply changes how much air is pumped into the engine and when. It has no influence on the actual combustion event itself.

[@charlesschwab7651]

plumberman19 some of your statement seems hyperbolic and exaggerated. Some engines require such extensive modification to make big power turbo or otherwise that it can’t really even be considered the same engine. And some engines are popular because of the cars they’re in but some of them are extremely popular because they can make massive power and they can do it easily. 2Jz and LS platform comes to mind immediately. Probably became popular due to the corvette and Supra but I would venture to guess there are more cars with 2Jzs and LS in motor sports right now than there are corvettes and Supra’s that function at all. Just be careful coming in with hard bold statements like that when criticizing someone online. Most of the time you come across as a jerk even if you mean well. There are ways to say things in a respectful manner that still get your point across.

[@asambi69]

If the block didn't need decking before...it certainly will now.

[@Airman..]

Its cast iron almost bullet proof Head is definitely wrapped though

[@jtackerman28]

That's unlikely

[@eastcoastghost2521]

asambi69,Absolutely deck the block

[@pk6336158]

@@eastcoastghost2521 Now there wont be allowed to run plenty timing

[@plumberman19]

Airman correct! The block is most likely fine. But, when aluminum heads are lifted they are twisted, lol. I’d love to see that thing on a machinist’s flat stone. Bet it’ll rock like gramma’s rocking chair, lol.

[@Alexander-sr5fg]

I love how people who only can prove they have enough intelligence to log into KZbin and comment think that they are pro engine builders. Guess what? Shit happens. All you can do is move forward- sometimes things work out better than other times. Anytime ANYONE makes a modification, they're rolling the dice; that's why there's so much debate about standard operating procedures. You guys are doing the right thing. Perfection doesn't exist, but the pursuit of excellence does. Love your content and efforts.

[@tommiedewaal]

Couldn't have said it better!

[@Syncopia]

Arm chair experts at their finest.

[@danob8968]

Kinda lost me at cilinder head, lol I mean how can you take somebody seriously when they cant spell cylinder.

[@davidpac4]

Right! I love how everyone is an expert AFTER the fact they explain the possibilities

[@sephiros9883]

Very eloquently put, amen! The Hindsight 20/20 experts of the internet are the best.

[@BaderBuiltRacing]

I literally just had this identical issue at a much higher power level, but we both used a JE Pro Seal Headgasket... Ive used them for years on subaru's if you are familiar with my channel. But apparently when it comes to evos they are not the desired gasket. Pulling mine apart today to see my damage as well..

[@Addiesarkisian]

Baderrrrr

[@Addiesarkisian]

Can’t wait for your video on the evo

[@isaiclucero6471]

Love your channel man

[@bri-manhunter2654]

Poor tuning and detonation running a high static compression. Not a head gasket issue.

[@chickenfishhybrid44]

But did you use the nectar of the gods on both sides of the gasket? Copper spray! Lol

[@MrJessegsx]

Failure is how you learn. I blew up so many motors in my DSM. Learned from each one. You'll get it sorted guys! Coming from a 4g guy, these things happen. Don't give up! Build the next one!

[@richardcampbell8685]

Please read comments again. It's fun to laugh at these "experts". You guys rock keep up the good work. I have been around since around 9000 followers and your stuff definitely keeps getting better.

[@plumberman19]

Thomas Chrombly What makes you say that? Have they posted more information about it? Which “experts”? Haha I’d like to know if my guess was right?

[@devonv2455]

Pull/check pistons and bores, the ringlands might be broken/compromised

[@plumberman19]

Yes, because this engine failed due to pre-ignition, with wrecks everything, Pistons, ring lands, Rods, bearings, cylinder heads, cylinder walls, the list goes on. This engine needs a COMPLETE rebuild including all the recommended machining.

[@dustinselby1368]

I would do a check of everything. If they deck the block. They gotta remove everything anyways. Metals gets everywhere.

[@jacobbarney124]

Haters gonna hate. You guys put out awesome content and I know you'll get it sorted out! I think going the safer route here would be best though.

[@plumberman19]

I know you guys don’t want to “play the blame game” and hurt someone’s feelings, but that damage has pre-ignition written ALL OVER IT, the evidence is overwhelmingly in favor of PI(Which you can’t hear with knock headphones btw) also, the video showing sparks flying, that is evidence of burning metal or pieces of carbon, not fuel. There are no sparks with normal combustion of fuel. This head was LIFTED, not leaked from poor mating surfaces(lack of decking) wish you guys would’ve though, which would’ve further proven my point. People often over look the fact that PI causes enormous cylinder pressures, well over your expected pressures seen with 30 40 even 50psi of boost. The head was not lifted from 20 psi of boost, just ain’t gonna happen with your ARPs and a proper torque, which I believe you guys did. Also, as far as deck surfaces, there is a good margin of error that you can get away with until VERY high performance levels. You might get a bad seal and pressurize your coolant system, and maybe even a small combustion leak, but you’re not going to lift the head due to poor mating surfaces. Lifting only happens due to improper head bolt torque or excessively high cylinder pressures, that’s it. I’m sorry guys, this sucks! Most of us that have built turbo engines have been there, I know I have. And with that pretty KA24DE-“T”😉 in my profile pic. Rebuilt it twice. Once because I turbo’d it with a stock short block and got greedy with power. And the other, because of bad tuning(my fault).

[@ReubenHorner]

I was under the impression that pre ignition was very hard to have happen unless you have a super small turbo like the modern cars have. Seems like a detonation issue to me but I'd like the pros to speak up (Andre from HPA)

[@plumberman19]

The lifting of the head would suggest pre ignition vs knock. Detonation doesn’t increase the pressures like PI does. The size of the turbo hasn’t much influence, if any at all, on propensity for preignition. PI is when the explosion happens way before you want it to which causes huge pressures. Detonation is when explosions happen after spark but in other parts of the combustion chamber which far less destructive, that’s why you can have “ping” or “knock” and the motor lives to tell about it lol. Not to say that detonation can’t grenade a motor, but it generally just destroys pistons and their ring lands. I’ve built multiple turbo engines and tuned them myself(mostly AEM and megasquirt), I’ve failed at it and been successful at it. I may not be a professional, but know enough to know what I see in this motor.

[@ReubenHorner]

@@plumberman19 that's true

[@goatropefan38]

@@plumberman19 so I know nothing about engine building etc but if we were playing the blame game who/what would be at fault for preignition if it was the cause of this particular issue?

[@plumberman19]

lohpezfan62 unfortunately it would be the tuner. Sasha knows what he is doing, but we all make mistakes. Of course you can say, “well Pete didn’t install EGT(exhaust gas temperature) sensors” so it’s his fault for not installing safety features. EGT sensors would have shown the adverse conditions to the tuner and the ECU and very well might have prevented what happened, yes, but the tuner knows, or at least should know, the constraints of the motor he’s tuning, for example.. We don’t have this feature, or we do, we’re using this fuel, the bottom end is built, or it isn’t, it has upgraded head studs or it doesn’t etc... these things help him make the decision to set fuel trims, boost levels, and timing at certain levels. Good tuners like Sasha know these things, which are generally universal and can apply to most motors they will ever come across. Sorry, I’m long winded if you couldn’t tell🤣

[@zkipa]

It's ridiculous to me how many people criticize in the comments for stuff like this. I for one enjoy watching you regardless of the mistakes, and you learning from them. I watch to see your journey, not for you guys to do everything perfectly right every time. That's not reality. Plenty of professionals make mistakes on a regular basis. Can't tell you how many times I've taken my car to "professional" shops and ended up just wishing I would have at least tried to do it myself and saved the myself the hassle of paying someone else to make mistakes for me. It's okay something went wrong, it happens to the best of em. Keep truckin guys.

[@apollorhythm]

Don't beat yourselves up on this one. Happens to us all. It's part of owning and modifying cars. Keep up the great work. Love the videos as always!

[@plumberman19]

There’s nothing to beat themselves up about. It wasn’t an engine building problem, it was a tuner problem.

[@kinglolo88]

You guys are out here doing the lords work in the automotive enthusiast world. Keep it up.

[@anomamos9095]

On any high performance engine after the run in cycle you always check and retorque every single fastener. Even the ones that hold down the confabulator and especially the thingymawahtsit.

[@S14lver]

The people with negative comments have probably never blown a motor before , you figure out why and make it better . I love that you guys are being honest about what happened, you live and you learn .

[@spar8334]

Sometimes forums have improvements they've found over manufacturer directions

[@BradBuege]

You guys take your failures in stride and create learning experiences for yourself and us all out of negative situations. The continued positive attitudes as you struggle with difficult things is commendable, you're out there trying things, working hard, and taking risk just to give us this content; for those things you both have my respect. Thank you for making these videos.

[@samdefoe1043]

Lol at the comments end, you guys will get this back up soon I’m sure. That head gasket was melted good

[@mx5_enigma308]

Every car guy knows how you both feel! Thanks for showing both failures and successes on the channel!

[@maverick2242]

Thanks for sharing what went wrong, including the stripped bolt, I am surprised you didn’t get the blocked decked.. Not to be negative, but maybe the Title should be updated from STI killer to EVO killer! I have argued this with many enthusiasts, I see as many if not more EVO failures as any other car and esp Subies! When you modify, you cant cut corners, always deck, tear that right down, don’t just slap that stock gasket back on and hope for the best, it will def crash and burn, for me you are sharing experiences, nothing wrong with that, just learn from it..show the right steps next time, so we all learn from it and what’s the right way going forward, save others the same pain, Look forward to the next vid. 🤘

[@matthewgriffiths527]

I'm surprised they didn't deck the block as well, to me that is a newbie mistake. They should used a stock head gasket as a fail safe. It's better to blow a head gasket than damage a block/head.

[@3geclipsebuiltperformance883]

I have an 8 motor swap in my 3g fully built lol wth happend with the decking ur rite

[@gerardbuscombe585]

Sorry about the other people giving you negative comments. You guys are inspirational and it’s great to see you giving it ago.

[@sardengineering]

Thanks for reading my comment. When I noted appropriate sensors I was referring to a coolant pressure sensor, not just the knock sensor. Like you said, in hindsight, it’s easy to pin point helpful things which could have prevented the failure. However, with existing reservations surrounding the ability for the engine to keep the integrity of the combustion chamber’s sealing, maybe monitoring the behavior of the pressure buildup within the coolant system would have turned a light on in an otherwise dark room? Even setting up an engine limiter protection strategy to limit the pending doom of such instances. Please allow me to wish you all the best moving things forward in a positive direction.

[@oyurcha1]

You make a good point about monitoring coolant pressure. I wonder if that option was available with the standalone that they had installed in the car.

[@sardengineering]

oyurcha1 the Link plugin ecu they’re using has two expansion loom ports, this is where the spare inputs and outputs are terminated. On the number two expansion loom connection there are 4 spare analog input channels, An Volt 6 through 10. Within the software there are two general purpose engine protection limiters. In the event that the engine protection limiters were used for what ever, you still had a general purpose trim offset table which will allow you to drastically reduce boost pressure by applying a negative percentage to the wastegate duty cycle table; on this 3D table you would set the axis as engine speed by an incremental coolant pressure measurement. It takes time to get these strategies to work in the favor of the engine’s specific operational conditions, sometimes the correct sensitivity for it to be effective will require a bit of attention; but it’s definitely a possibility. I’m not sharing this to point fingers at whom ever, I’m sharing this in hopes that these mistakes can be avoid by anyone using a modern engine management solution.

[@forerealz]

I enjoy how you guys are embracing the criticism you receive. IT shows us that you care enough to read our commentary, and that you don't take the hate too seriously. Keep keep'n-on my dudes, I'll keep watching and loving the content.

[@ozman1975]

I used a OEM HG and +625 head studs on my fully built 4G63 engine, run 650hp all day on a very conservative tune.

[@bri-manhunter2654]

Whet happened here was a tuning issue and preignition/ detonation.

[@robbalinski1606]

I run 28 psi on a stock composite HG as well zero issues. ARP's are a wonderful thing, but it really comes down to tuning.

[@markc1456]

Same here! 37psi fpBlack Gsc R2 2.2L ARP 625+/OEM 9 MLS gasket! No issues for years! Mates are running 40+ on 6466's with same set up 🤔

[@PenguinScotty]

It's easy to throw dirt when you're not the one getting hit in the face. Thank you for being real and showing what can happen. I'd rather learn from a mistake than try to hide a failure, trying to make myself look better on the internets... Looking forward to the battle!

[@TheCSHeckler]

Wow, don't they love it when you fail. Making mistakes is interesting for me. I'd go the OEM gasket and deck the block, just to see but a new short block may be cheaper in the long run. There's nothing wrong with you two learning the realities of engine building on your own channel, it's still instructive for an ameteur like me.

[@andrewduggan3495]

Don't listen to the hate fellas. Its easy to be a master mechanic when your hiding behind your keyboard. I for one appreciate the honesty. Some good learning opportunities here for both yourselves and us the viewer. It's an awesome build and you're sooo close to the end - don't give up, it will all be worth it in the end!

[@iwantoffroad]

Put a machinist straight edge on the block in multiple positions.

[@TheStwat]

You two have my utmost respect. More than any other channel on youtube, you show true reality. How shit really is. No sugar coating. Shit happens and you show it as is, no bullshit.

[@tylerm6652]

When are you guys coming back to Baltimore to pick up the Celica?

[@bruceguevarabjj]

Hey guys I have been in your shoes having a new engine go on you is terrible. Keep your heads up, love watching a grown up car channel on youtube. Thank you guys for the content.

[@hahaha12345678993]

am i the only one that would rather watch them pulling the engine in a non time lapse style, i'd watch it if it was an hour long video

[@nayfonr32]

Nothing technical to add, but just wanted to say keep up the good work guys. You guys are one of the best motoring channels on KZbin and its mind boggling that you only have 350K subs.

[@zeroyon9]

ping ping ping .... your tuner is a ding a ling ...... Top of the pistons tell the story.

[@Mr_jz_12]

I dont understand how they're covering for this shit.

[@azzdog]

@@Mr_jz_12 Because Sasha is their mate and they obviously don't want to think he's made a mistake here.

[@Mr_jz_12]

@@azzdog Makes it look even worse. "we're admitting to our mistakes" errr no, you're not.

[@bri-manhunter2654]

It was absolutely a tuning issue!

[@plumberman19]

Finally, some commenters that actually know something about motors 🙌🏼 I gave a detailed explanation of what I think happened, and to put it shortly, it was preignition, which was the tuners fault.

[@Ron-wb3lq]

Most plp dont show or admit failures, im glad you guys did. Rebuild the motor and keep learning. Excellent content.

[@rtsoccerplayer]

In some cases i've seen forums correct the torque specs from ARP's manual. I even remember on one of your engine builds (I think the s2000 or SR20) you had to use a different torque spec because the ARP one was too high

[@HEATHENYT]

There is a lot of good info in forums. They have saved me a lot of trouble more often than i care to admit lol. Why not listen to someone who screwed up for me?

[@rtsoccerplayer]

@@HEATHENYT very true, problem is that forums also has lots of bad info haha

[@Dragonmalkier]

@@rtsoccerplayer There is no way hand tight is correct, even with ARP grease material or loctite. arpinstructions.com/instructions/207-4302.pdf That manual states 100ft/lbs

[@corwininadsm]

@@Dragonmalkier certainly looks legit to me

[@Dragonmalkier]

@@corwininadsm Actually I'm just wrong. He was referring to the studs themselves, not the nuts down for the heads themselves. Finger tighten just doesn't seem right to me.

[@randydaye548]

I love watching your videos! I'm fighting stage 4 colon cancer and have been for 4 years these days I find myself spending a lot of time laying in bed and your videos help me get through the day. Thank you for the enjoyment

[@RollerCoasterLineProductions]

Hope you’re doing well, god bless ya!

[@UnderAchievrLP]

Maperformance short block 2.1L. evens the scale vs the sti in terms of displacement at least.

[@mattwilson4719]

It would be cool to see an equal displacement challenge!

[@DIGPLatinodriftking1]

Most painful part of the failure video was seeing Pete before all excited and ready to make power, the explosion, then seeing him just sad and defeated. Talk about an emotional rollercoaster.

[@alvinaliasjackie]

yeah deffo STI killer xD love the build.

[@LikeZO]

Do it right the first time. Tear the engine down and measure/inspect each component. The head was lifting from detonation since cylinder pressure spikes 2 to 3 times of normal. I believe in you guys and wish you the best.

[@mobilePCreviews]

Lmao the salty comments got me

[@popase05]

Same had me rofl

[@apollyon2578]

I love the comment reading at the end. It's so easy to be the guy sitting back and watching videos and say "This is what you should have done".

[@mickeylee321]

Put on the OEM gasket and race it!

[@K2theK-b6u]

Amen to that. I have ran the oem headgasket for well over 40,000km on a built motor and 40+ psi ... still holding.

[@ossocinco]

It actually blew my mind that oem is the answer for most people. Never would’ve thunk it 👍

[@markc1456]

Whatabout a stopper type head gasket, like hks🤔 they any good.. my e9 gasket was fine for 37psi too

[@K2theK-b6u]

@@markc1456 Stick to OEM Mitsu headgasket. They have proven themselves time and time again. Just like the stock crank.

[@jack_nev]

Sorry I'm watching the video a bit late, don't take the negative comments personally. Speed Academy is a place for learning. Sometimes mistakes get made but we can all learn from it with you. This is a great series and it will be so rewarding to get the Evo running again

[@MrTherumpled4skin]

Definitely too much timing in the tune for the octane level

[@tomwalter8536]

Guys that was great, especially liked the comments readout. While I’m sure there was lots of swearing behind the scenes, I admire your ability to keep your cool on camera

[@jwilliams703]

Well its a 4g63... they work or they dont. thats that.

[@MithileshRamhit]

There's no in between

[@Fyxxterzc]

Amen to that. Curse of the 4g63. But when it does work its usually hulk smash.

[@jwilliams703]

@@Fyxxterzc My last was just on a new turbo, nevr had a chance to enjoy it. Lost spark on cylinders 2 and 3 for no reason. I swapped out everything that had to do with spark. Even whent to a 1G cas. Never worked again. No idea why. Im a subi guy now. from one problem to another lol.

[@WTFNoNamesLeft2]

This is it exactly, if you can get one past 3k miles it'll run forever and take so much abuse.

[@danielkellum8024]

I love the realness of your content, please don't let the haters get under your skin, but I did also enjoy you confronting them.

[@levpardede7877]

that is a timing to the moon.. i ve seen it from here. that engine goes to your fckin tuner

[@martink20a64]

Please dont allow the negative people to ruin any part of your days. Your show is very informative and entertaining, keep up the good work. Ignore negativity!!!

[@sarahdell4042]

Reach out to Magnus

[@marlonalleyne8218]

Guys it's always disheartening when things don't go as planned but I find myself more anxious than ever to see how this build continues. I like how you guys are doing your fact finding in a very objective way. Looking forward to the next video. 👍👍

[@theo.k]

I'm proud to be a Patreon supporter, just so that I can show those keyboard warrior techs the finger. Engine failures happen. It's 2020 !

[@justarandomweeb3220]

Well you cant argue with the internet "experts". If only they are there to help the build maybe this wont happened.

[@Btossijn]

No matter what other people say or comment, these things happen. Being a completely rebuild engine or a bone stock one, pushing it to its limits can give some funky results. It doesn't matter if you are a professional or an enthusiast... But learn from your mistakes and carry on! Keep up the good work!

[@SHADOWSEEKER-yo1hb]

I love how they both respond politely to hateful comments and learn from their mistakes.Be greater than the haters and be you guys.Much appreciation from Kenya👍😊

[@shonancheta]

please take care of your health everyone, your channel is one of my favorites on youtube, thank you so much for your great content, and can't wait for the next episode...

[@adampetersen5316]

Hi from Australia. Don’t be discouraged by arm chair warriors! These things happen, that’s how we learn! Keep bringing amazing content! Love your work guys!!

[@randydaye548]

I'm so sorry that you have to be subject to negativity. My Dad always said that the (only Man that never failed was the Man that never tried) don't let a set back stop you from achieving your goals.

[@kdogdaddy007]

Everyone one should take a way one thing, a learning experience that is helpful not only to these guys but to the viewers as well. They showed the build and showed the end result. Now we get to see how it gets fixed.

[@illest7113]

Big time RESPECT for showing the flaws, not many youtubers that build show that💪💪

[@jacobkirkpatrick4724]

You guys make some of the best and most enjoyable car content I've seen. Keep up the awesome work, gents! This hiccup will be behind you before you know it.

[@Zerofightervi]

I had an 8 headgasket on my Evo IV with no problems, it was running standard everything else with regards to the engine & turbo though.

[@altypeRR]

Sadly this seems to be an all to common issue on the 4g63 engine especially those pushing power more than 10-15% above stock. The chances are that as you say minor low spots in the block caused the gasket to lose seal as it heated up, the pre-detonation then crept in and it’s possible it’s killed the pistons as well. As you said the forums are full of mixed messages but the builders here in the U.K. seem to go with the finger right studs (1/4 turn over finger tight with an Allen key for mega power builds) and also go 90 degrees past the quoted torque spec on the nuts when you bolt it down. It seems, so I was told by a reputable U.K. tuner, that it’s because of the differing material spec between head and block and the different warm up rates that even the slightest imperfection in the block or head causes it. Gutted for you guys. Thanks for sharing it though.

[@kylehufford9645]

Keep at it guys. No matter what your content is great. Learning experience for everyone. Its really great that you are willing to show everyone the failure and not just fix it behind the scenes.

[@EKIan-cv3kb]

Guy's, don't worry about the bad comments, you are really good working on cars, people always think they are smarter than the others but they never do anything because of fear, keep it up whit the EVO build!

[@roddyronny1226]

Hand tight studs ? That's just crazy . I know some people will tighten it with a ratchet til it bottoms out and some torque it. I'm an amateur mechanic on my car and know you have to get both decked if you want it to sit flush but hey we all learn from this right . That's what the channel is for. Keep it up

[@axelalejandrosantiago8227]

Keep reading the comments guys, love your reactions. Keep up the great work!!!!

[@anthonycicero7970]

I know it’s frustrating to spend all that time and money building that motor for it to blow up on the dyno. It’s a minor set back. I agree with buying the MAP short block. Maybe you guys can do another video digging deeper into the block to see if any other damage occurred. You guys are still my favorite channel on here and Dave, your day will come my friend..

[@ourlifeinwashington4114]

I binged watched every episode yesterday and night on this car. Nice job guys new sub

[@41ace39]

On a positive note. Its a mistake that we all can learn from. Im rebuilding the motor myself. This is def one thing that i need to look out for. Thanks speed academy.

[@MrBoo-zg2hz]

Loved hearing you guys read a lot of negative comments. It’s tough to hear some, but other are like just stfu and watch this. Keep going, guys!! Excited to see the eventual battle!

[@NoodLeFX]

Having to defend yourself is unnecessary. Screw those negative commenters. Keep up the good work!

[@justin7190]

Evo might be the STI killer, but the dyno was the Evo killer. Have to agree with a lot of the commenters here, you guys are doing solid work and your biggest learns will be come from learning what failed when failures happen. Keep on pushing, love the channel. Also the comment read was a nice touch.

[@plakic]

Screw the haters. Keep blowing stuff up and rebuilding it, it's entertaining!

[@dustinselby1368]

Deck the mating surfaces and run a OEM Metal gasket. Coolant, oil, and gas mixing can leave a chalk like residue around everything after failure. Since you're decking, I would pull and clean everything and check pistons like you mentioned. I don't remember how you guys did the head install but it's a really important process. Clean room, gloves, brake cleaner, compress air, & lint free towels. It's by far the weakest link for boost / high compression engines. I spend like a entire day prepping the head side and block to mate. Also be careful with the ARP lube. I personally install the studs first then do a final clean before gasket/head install because the lube will squeeze out. Good luck with everything and I hope you guys have success.

[@tommiedewaal]

GUYS RESPECT, don't let stupid people with stupid comments get you down. We all have to learn from the internet, everyone's an expert but they will never get down and dirty. I have much love and respect for what you guys do. Being humble and opening yourself up to learn something new is a very good quality that not a lot of people have. PUT UP OR SHUT UP INTERNET!!!!

[@Luigi12500]

I absolutely love how Dave and Pete are lowkey triggered at the end of video. Adds some comedic relief to this unfortunate situation. Good luck guys !

[@jdcompton328]

I don’t think I’d roll the dice. I think a complete tear down, re check and resurface is gonna give you the piece of mind your looking for.

[@gabrielfitzgerald-biernath4322]

Ignore the haters. This is insightful stuff. I'm getting a HG done rn and was uncertain wether I should get the block decked... now I know what I'm gonna do. Excited to see what happens with this build. Keep it up!

[@Villajesse]

I agree, don’t listen to negative comments. You guys do more than any typical KZbinr seeking clout while having someone else build their cars. Keep up the good work. From a Newley patron supporter 👍🏻

[@Killerconceptz]

All these KZbin mechanics 😂. The best thing you guys show is honestly. Crap happens and you learn from it to see how you could make it better. Love your channel since day one!

[@gtiguy18t1]

I enjoyed the comment scenes at the end. Keyboard warriors have the best recommendations. You guys are great and doing the work yourself is more rewarding than paying someone to do it for you. I've built a bunch of street and race cars and it has been a lot of fun. Yes I've blown some engines too but that's how you learn.

[@albonfilms]

In 4 blowing up the STi motor for maximum KZbin drama 😂 Lol, keep it up, guys! You guys will bounce back strong and learn plenty from this. All any failure means is to build it bigger, badder, and smarter than the last time. Can't wait to see the rise of Evo Phoenix!

[@snailfedperformance7177]

If you choose to take the route of a new shortblock. I highly recommend doing copper o-rings in the block and a stock Evo 9 headgasket. The Evo 9 OEM headgasket is a 5 layer gasket compared to the 3 layer gasket they use on the Evo 8. We have built multiple motors with this setup seeing 40+ psi of boost reving 9,000+ rpms and have had zero failures on this setup. I am also going to suggest a retorque on the headstuds as when once you get some heat in the motor.

[@TWinkler02]

Glad the issue was apparent, and glad this block can be saved. Can’t wait to see the car come back stronger than ever! For the head studs, I usually just give them a little crank with a ratchet to ensure they’re tight. Get that block decked with a torque plate to be safe, get an evo 9 head gasket (they’re stronger than a 4-8 gasket and is totally compatible). And then obviously deck the head or do whatever needs to be done to fix that

[@MikeyFIXED456]

Everyone always hates but not everyone takes real action. You guys are doing something we all can’t do. Make changes. Make progress. And unfortunately, sometimes make mistakes. It’s all part of it. Keep up the great work and great content.

[@Christdeliverme]

Hey gents you aren't the first nor the last that will have an engine failure. Don't sweat it. So sorry it's so expensive, but we're all here with ya. Question. I know a lot of people were saying the studs being loose during disassembly is common, but perhaps you might want to go back through your disassemble in this video and pin point those that are most loose and see if it is commensurate with portions of the HG with the greatest scorching or damage. One last question:. I do not know anything about this block, most engines do not have a closed bore for the stud, but do any of these head studs fasten into a closed area? Not open to a larger area? If so, you may have had a little moisture in the bore during reassembly. Keep up the awesome work. Ask the machinist what the run out was on the head and deck so that you know it was true.

[@KevinCampusano]

I personally would love to see an engine rebuild on this bad boy. It'd be kinda sad to see such a special engine go to waste.

[@krispykruzer]

Really sorry about the hate mail, it's truly saddening that this type of person enjoy the free content and whine so much...you got my support guys, don't feel let down by those fake, shallow people.

[@bocchichiodrify]

I feel you on the weight loss! In an attempt to get my Lyme disease under control I had to do the same thing to my diet, and I've been struggling to keep weight on. Good luck with that! Never mind the negative comments, I've appreciate all the content while I've been recovering from my own illness!

[@isaiclucero6471]

Get them both decked make sure you use an Allen key to make sure the studs are bottomed out completely until they don’t thread anymore not tight just bottomed out and slap it back together with a new head gasket looks like the studs weren’t fully down and that’s why they were able to move other than that really love the build can’t wait to see what’s next

[@MattWong117]

Don’t feed the haters! Things happen, which is annoying but you always learn from a failure. Keep up the amazing work and great content!

[@Zoltec-q1g]

I‘d rather wait (and learn!) from you two rebuilding the engine. Mistakes happen. If everything went as planned everybody would repair their own cars. Having built an engine yourselves is already pretty brave!

[@donkyuhbuhts540]

Honestly this channel has so much content and so much R&D it's pretty awesome. Also glad to see the Subie came out the winner.

[@jchanh2600]

I really enjoy watching this project. The Evo 6 is always one of my dream cars as s kid. I thank you and appreciate all of the hard work and time you guys put into this build.

[@vatechm3]

Sorry for the worst possible outcome after spending so much time on the build. I'm in a similar boat, spent fall and winter rebuilding my e36 325i track car. I made it 6 laps at VIR and a connecting rod ended up on my motor mount arm. Totally sucks, but you guys can get things back together. Good luck gents, whatever decision you land on, commit to it and get the car back up and running =)

[@Rideout5]

man... hearing those comments was painful. I hate people. You guys are doing a killer job, who knows the exact reason this happened or what/who is at fault. Im sure it was a combination. It was your first full engine build on your own and you will learn from this which is awesome. That is also why a lot of us come here, because I also want to learn from your mistakes. If I built that motor I doubt it would last much past the first startup lol Keep up the good work!

[@jwdebod01]

Long time subscriber here, This is unfortunately part of the motorsports environment, and stop listening to 15 year old keyboard warriors! I respect you guys for building the motor yourself regardless of the failure, other KZbin channels have engines built. Great job guys, you have my support 100% ❤️