Do turbo-charged engines have a shorter total service life compared to naturally aspirated engines? All else being equal.
maybe haha
>>28867675Depends on what you mean by all else being equal.The exact same parts, probably, you end up with a low power, low compression NA engine that will last longer.NA engine with the same displacement and output? Wouldn't bet on it.
>>28867675What does "all else being equal" mean? Most turbocharged engines nowadays were designed specifically with turbocharging in mind. If you take an NA engine and boost it then yeah it's going to have a shorter life but if compare a Mazda turbo straight 6 to an NA BMW straight 6 then the mazda is going to be more reliable
>>28867675Not if they've been built for turbo applications, but in the end, you are adding complexity and points of failure. That turbo gets a plugged oil line, or sucks in some crap and snaps a vane and you're not repairing anything - it'll likely kill the whole engine.
>>28867675with aftermarket turbos yes, from the factory probably not
>>28867675Not really anymore I think. 20 years ago maybe but turbos are pretty easy to make last now.
honestly in theory turbo shortblocks could last longer just because the afr is more consistant than NA per cylinder.
>>28867675>All else being equal.Yes, boosted engines will have a shorter life.
>>28867675Obviously more pressure in the cylinder = shorter lifespan
>>28867681Whats so funny?
>>28867675IS THIS THE WAY TO FLAVOR TOWN?
>>28867675>shorter total service life Typically yes.Turbos put more stress on everything inside an engine.They also degrade oils faster as well.The longest lasting engines are always low RPM, low stress, & naturally aspirated
>>28868539>Obviously more pressure in the cylinder = shorter lifespanWhy?
Yeah but it doesn't matter when it's 500,000 miles instead of 1,000,000 milesEngine isn't even a big deal to swap, some of you kids are so fucking stupid man get a life
>>28868654Physics nigga, constant pressure on metal causes it to deform
>>28868662for steel at least, if it's below its stress threshold, it'll last forever. too bad we can't make blocks out of steel...
>>28867675There's no replacement for displacement. If your block isn't large enough to generate power, you have no business trying to force it to. So yes, of course turbo-charged engines don't last. There's a reason why they were a only a fad that lasted a few years; the big block is timeless.Also, you need to check the "Orientation" thread and "New Users Introduction" thread and post there. I see that you created your account 4 days ago and you already have 9 posts but none of them are in the "New Users Introduction" thread. Let's keep it civil and welcome to the community!-Ron------------------------------------------------------------"Road King" Ron LemonpartyJoined: 17-Apr-2002Posts: 34,951 [SUPER POSTER]Online"If it ain't broke, don't fix it""No I can't do Snapchat or TickTock but i can write in cursive and tell time on a clock with hands""You can't fix stupid""I carry a .45 because they don't make a .46"POW-MIA Lost but not forgottenRespect our troopsRet. US Army (1981-1981)United We StandGod Bless AmericaGoodyear Mechanic (1985-1992)Goodyear Head Mechanic (1992-2006)Goodyear Service Writer (2006-2007)NAPA Store Manager (2008-2013)Midas Supervisor I (2013-2017)Midas Supervisor II (2017-2021)Midas General Supervisor (2021-Present)The Garage:1965 Plymouth Fury 440 c.i.d w/ Edelbrock headers1984 Ford Mustang GT w/ 350 c.i.d swap and slicks - verified Japanese and Chinese destroyer, has even won against motorcycles ***FOR SALE: PM for details -- 43k on block, over $40k in upgrades plus spare parts, asking $85k o.b.o***2009 Mercury Grand Marquis GS (daily driver)2019 Honda Accord (ball 'n chain's car)[Image Hosted by Photobucket]'84 Mustang for sale[Image Hosted by Photobucket]My first car - a '55 Mercury Monterey Convertible - bought for $75![Image Hosted by Photobucket]The Fury outside my vacation cottage[Image Hosted by Photobucket] Pray for our troops!Posted from my iPad via Tapatalk.
>>28868844An engine does not operate on steel deformation or steel-to-steel contact, it operates on journal bearings (pressurized oil films). If the force exerted on the oil film exceeds the surface tension then you get metal on metal contact, causing rapidly accumulating damage. Obviously the block, rods and pistons need to be strong enough to handle peak torque, but the primary cause of engine failures is journal failure
>>28868870>journal bearingsoops i forgot about that. Lol
>>28868869>There's no replacement for displacement.My boomer uncle used to say this IRL.
>>28869026it's true though. have you ever seen a small displacement freight train running on turbos? low testosterone ziplets love to fantasize that their 1.6L with a big air spinner is overall better than a n/a V8 even a small block. compare a dohc 4 cylinder with a turbo and a dohc v8 n/a and tell me when you see semi trucks and freight trains running on your shitty D16Y7
>>28868844steel doesnt dissipate heat very well, it'll hold more psi but you're gonna get warped heads
>>28868486no
>>28867675It's rarely ever the engine itself that gives out on cars anymore.
>>28869026It's literally true, turbos and RPM both let the engine displace more air in a given amount of time, they're just a way to fake having a big engine with a small engine.
>>28867675depends. on diesels it can extend engine life since you no longer need to rev them to make power. but then you got NA diesels like the toyota 4,2 with paper thin pistons. add a turbo to it and its a constant struggle with watching boost and exhaust gas temperatures to keep it from exploding. unless you change pistons. stock these engines will run a million miles. then you got nissan sd33 and even their 4,2 counterpart to the toyota with pistons carved out of rock. you can boost and fuel them into oblivion and nothing happends. these will also last a million miles but a bit more with boost since you now can chug them around instead of redlining them.
