Open Deck vs Closed Deck | Engine Fundamentals

[@Dustrunnersauto]

If you guys enjoyed the video, please SMASH THAT LIKE BUTTON. It helps the channel out a huge amount and helps KZbin put the video in front of more people. Thanks for watching 😬

[@ME-L3U]

You should make a video about 1FZ-FE Question What parts should i upgrade to open the rpm

[@Wesbian]

You should make a video covering the Audi EA855 2.5 TFSI from the RS3/TTRS. Its a very unique and not so well known engine with loads of tuning potential.

[@lepmuhangpa]

How video about "Cast block VS Forged block". And an "Iron block VS Aluminum block"? Love your videos man.🏎

[@lepmuhangpa]

I thought the crack was because of engine knocking and with modern sensors were preventing the cracking that's why the horsepower of the new engines. The modern methods of casting would increase the structural integrity of the engine but the ECU tuning should effectively eliminate this problem.

[@jordanprice9285]

You should do a SOHC vs. DOHC video!!

[@MusicianKnowsBest]

If I remember right, the M54B30 engine in my BMW Z3 3.0i had an open deck. From my past experiences I would say I prefer a closed deck. They're just stronger like you said and there's less of a chance of failure for head gaskets and cylinders. But the newest car I have ever owned is a 2007 LS engine so like you stated Im sure the technology has gotten much better for open decks and they are more efficient at cooling so if manufactures can make them stronger then by all means go for it!

[@rolygymratnavarro2093]

How is one of my fav car info channels still so underrated? 🤷‍♂️ Thanx for making me win so many arguments in engine design. You got a sub for life. Keep up the good work, big dawg.

[@starlite-sw5wr]

Very good video. I learned what is an open and close deck with this video.

[@WONMARK]

Modern sensors and tuning capacity allows for squeezing out as much power from blocks without causing as much damage to them... A modern well tuned open block is capable of high hp gains... Thanks for the video...

[@greggkathy1892]

This was awesome! Now I understand a bit more why a close deck was recommended if I were going to push my N14 mini Cooper up into the five and 600 hp range. Sounds like some good forged Carillo rods and pistons would be all I would need if I kept it around 400 WHP though.

[@K1dPhresh1]

This is actually very informative. Thanks!

[@JoseSantos-ys3rj]

this video came out just when i needed it. great video pal! keep up the great work, can´t even say how much i learnt with your channel

[@Max-lz5ym]

Very nice explained and illustrated video👍🏻

[@jksleepers3440]

I am a new subscriber! I am very impressed with the quality of your videos, the information as well as the visuals does a lot to help commit this to memory.

[@williambrandt9254]

Thank you! You explained it clearly and succinctly My old Mercedes SL has perhaps a unique engine property. They completely redesigned the M119 V8 block in late 1993 from closed deck to open deck Supposedly besides saving manufacturing cost it's a bit more economical. I understand with open deck the coolant is flowing all around the cylinders so it must displace heat far more efficiently The SL does seem to run to operating temperature very quickly Can you think of any other engine that kept its nomenclature and went from one style to the other?

[@NoPainNoBrainNoShame]

That subi-performance billet inserts for the EJ 😎

[@roskataqv]

You can machine a block girdle to fully close the deck, or just fit shims to '' semi'' close it.

[@martin-vv9lf]

I was expecting them to weld in the new deck.

[@mysterigx_]

Back at it again with informative content 👏🏾👏🏾 Keep up three good work with these videos man! Also, for the next videos, could you do a video on the variety of turbos? Like twin scroll, variable turbos etc if you haven’t done so already.

[@Dustrunnersauto]

I can definitely make that happen sometime soon 🤟

[@rovifahmi3501]

Very informative and i agree open deck its simple block, solution siculation for water cooled much attention...thanks 4 the video 👍👌

[@jordanprice9285]

Nice video! Personally I have always prefered Mitsubishi because of the strong Closed Deck design or Semi Closed deck design if we're talking about the newer 4B11's

[@saniwada]

this was a really interesting video, good job.

[@topvideos6166]

Thank you for the video, there is a lot of cars channel didn't spoke about this informations

[@jpbredenkamp5091]

Not a single dislike and after watching I see why! Subscribed :)

[@olalan]

Very informative. Thank you.

[@nivendarsoo4575]

Very good explanation

[@itabiritomg]

I worked some years on a engine refurbishment shop and guess what?? Every single open deck engine I have ever worked on, was warped on the head surface! While closed deck is more like 50-50, closed deck is 100%. You don't even need to measure the gasket surfaces!

[@kentrobins7877]

Very interesting and well explained thanks.

[@chrishelmly6682]

Great job man!

[@patrickstarr87]

Thanks for the lesson!🙌🏻

[@lepmuhangpa]

I thought the crack was because of engine knocking and with modern sensors were preventing the cracking that's why the horsepower of the new engines. The modern methods of casting would increase the structural integrity of the engine but the ECU tuning should effectively eliminate this problem.

[@jeremywhittler8591]

The basic question is are you running twins or a big single. Just like nitrous if your Making alot of torque under 3k your creating the most stress possible. Then are you running a manual transmission and are you at a reduced gear ratio. These are thoughts you should have in your head that and if you close the deck can you keep it cool. With today's piston coatings , methanol injection and e85 we don't necessarily need to close the deck semi or fully closed. Last are you running an accurate progressive nitrous coming in late with reduced gearing , colder plugs and what is your compression ratio vs stock and cast pistons or weak rods/ direct port injection. Don't forget 0w-40 and soft or oil underfloowed crank or sub pat bearings . Identify- what is my engines weakness areas? Don't forget tuning and preventing detonation. This is the new school of thought cross referenced against your transmission specifics and shift points/rpm.

[@meviuswhity3451]

Amazing video.Thank you very much

[@reecelawson4718]

Hi bud, this is unrelated to the video but could you make a video explaining why superchargers whine please?

[@alexstromberg7696]

Because gears. There you go.

[@adgenai]

Hi! Nice video man! I’m currently building a N54 with JE Pistons and Manley rods. I’m looking to have between 700 and 750whp, do you think it will be fine with the open deck?

[@eliasbutcher859]

There’s such thing as block filler if you’re unsure.

[@versusinsanity8685]

Very informative thanks bro for the video

[@oilieds9555]

One negative about open deck designs that he doesn't mention is the frequency of head gasket failures due to reduced sealing surface.

[@yusu6605]

AMG M119 6.0 closed is best?

[@t1t00z9]

Thank you for your info

[@strongerandwiser2023]

A closed deck is deffo the way to go if you plan on pushing big HP and very high boost levels. One of the weaknesses of the n55 engine in the BMW m135i's and m235i's back in the day was they were open deck and these engines suffered because of it. This is why I believe BMW moved away from it with the b58 and went closed deck.

[@playingisgame]

How exactly did it suffer?

[@eVerProductions1]

So what your saying is all these small open deck turbo charged civics and so on will blow out eventually? Edit: the 1.5 turbos

[@Dustrunnersauto]

No. Not unless you’re trying to push some stupid power figure, and even then there’s a ton of other things which will fail first.

[@ancientapparition1638]

rods will explode first if you leave stock rods.

[@tjioeardiyanto1518]

Can Ford Coyote be considered semi-open deck?

[@sanctifiedsurvival]

Open deck isn't a bad thing unless your Subaru is near 120k 😂

[@eliasbutcher859]

True

[@FreddieSodium]

Does my Rx7 have an open closed or semi open deck?

[@niceperson6084]

why does this channel only have under 100k subs, i dont get it

[@MrWilburlandaverde]

I guess he wanted to ignore the fact that the Ford focus RS has an open deck and still warps those cylinder walls..

[@tomg6284]

7:25 to get what I knew.

[@runningman7674]

I just wanna say alot of open deck engines, (especialy hondas) are still not meant for under 700hp. they max are rated for like 300-400 and wont run well higher then that.

[@runningman7674]

the one honda engine is the ONE honda engine that was built very well as a open deck and can handle insane amounts of power.

[@erazorCTF]

Is it just me or did he litterally repeat all information 3 times over? Sometimes even the exact same sentences.

[@vivi_75]

You ain't trippin

[@ip7-7]

very good video, very correct in technical terms. it only seems you are always trying to defend open block after an argument for closed block design ;) in a technological comparison closed block is simply better, the reason for open block is only the cost factor and probably overall powertrain efficiency. subscribed :)

[@stephensokoloski2082]

Analysis is excellent but your cadence and editing are nervously fast. Slow down the tempo my friend.

[@gabrielbubalo1408]

w video

[@POVShotgun]

If only bmws didn’t leak

[@utubecomment21]

Why do manufactures use Open Deck? Japanese manufactures aside, obviously .... so greedy car manufacturers can sell another car, to idiots that don't learn, when their engine goes - pop! And if you think Open decks aren't a problem nowadays, you've obviously never heard of the Ford Motor Company!

[@charlesowens8724]

Actually N54 (T/C) is a Close Deck Block the N52 (N/A) is an open deck surrounded with magnesium.

[@ryanmurphy6413]

Open and semi closed deck are the same thing, race engine or nothing

[@UniversalMarcus1483]

Subscribe button smashed!🫡😆 Hmmm?🤔 What would I like to see? In terms of fun factor, what would you suggest: the “factory rally cars/300hp Hot Hatches” available nowadays like the Ford Focus RS and Toyota GR Corolla Circuit Edition vs. used classic “factory rally cars” but well treated and maintained ones (i.e. trailer queens turned track day weapons) in the form of EVOs and Subbie STis?

[@TTGTO288]

You don't discuss the power levels from one to the other, making your argument null and void. Modern High Performance Engines, then you reference garbage ... lol. You are correct in your explanation, but clueless as to why.