Are LS engines shit or what?Every car show I go to has Dyno sheets that look like this.Giant blower and camshaft, but a retarded power curve.Coupled with shitty tires and a 60e transmission.I don't get it.
Yes, the most popular engine swap by a fucking mile is a bad engine. Did you think about this at all?Also car show guys are not real performance car guys. They build their shit to impress other midwits, not to put up numbers.
>>29051210What the fuck is wrong with that power curve? You do know there are a million cam options to have whatever power band you want right? Use a truck cam if you want all your power at idle. Use a super aggressive cam and lots of compression if you want to make power at 9000rpm. Anything is possible with the infinite LS aftermarket. Hence why it gets swapped into everything.
>>29051228>to have whatever power band you want rightLet's not get carried away here buddy, it's still a pushrod engine remember.
This thread will inevitably devolve into /v/ but with valvetrains so let's attempt to get some decent replies in before that. 2v/cylinder heads don't flow as well past a given RPM, period. Bore and stroke also play a factor, but less so. Superchargers also trend towards lower RPM torque/power boost compared to a large turbo for high RPM. Combine all these and you're going to end up choosing a cam to support maximizing low/midrange gainz while not completely falling on its face, which is achieved here as you can see the horsepower curve merely flattens out and doesn't really dip down. Pretty much everything has been done with the LS series engines including high RPM destroke builds, but most people choosing a V8 are aiming for a dyno chart that more or less looks like this. Far from a retarded power curve.
>>29051233Really? You're one of those people who thinks a pushrod engine can't rev past 6k rpm?https://www.youtube.com/watch?v=aAANGDX_iW0https://youtu.be/Y54txtqDWUc?t=56
>>29051237I KNOW they can't lmaoLS engines have enough problems with munching lifters and spinning cam bearings without even going over 7k>b-b-b-but what about my race engine with billet everything which I have to check the valve lash after every single run?Wait until you hear how high non-pushrod engines can rev when you go to those lengths
Should’ve went with coyote
>>29051228Has a stage 4 BTR LS3 cam in that engine.Should pull past 7,000rpm with ease. Not make more torque than horsepower and have power drop off like a brick
>>29051210Lol.Post dyno sheet of the car you drive.
>>29051241My dairy farm had 50+ 5.3/6.0 trucks roll through making it past 200,000 miles with Mexicans driving them.Never had a single lifter or bearing failure.Lotta failed 4L60E sure, but we had a mechanic that rebuilt those super fast on sight
>>29051250Blower + intake manifold may be the limiting factor, then.
What's wrong with 600hp how much would a mustang make with the same amount of $ in mods
>>29051253Uhhh huuhhhhNow tell me if you were to rebuild your LS right now, which brands of lifter can you use?Don't tell me there's a big long list of lifters which are unusable because they'll munch your shit, and maybe just ONE SINGLE BRAND which is considered safe to use in the totally not completely flawed valvetrain of an LS engine?
At least we can agree that LS engines are vastly superior to roturds. even Mazda thought roturds were shit which is why they stopped making them. they're so shit that their historic race cars just burn down>>29050752
I see absolutely nothing wrong with that powerband. I'm a weeb into DOHC vvt gimmicks, but that looks pure and nice. Almost ideal. What's the issue here?
>>29051279OP is trying to bait a /v/ console wars but /o/ flavored thread. These have been pretty common for 10+ years and have driven away pretty much anyone actually worth talking to.
>>29051280Sure. It's not about /v/ (also, I only go to /vr/), it's the nature of the website. There have always been weird troll threads where the OP larps as the other position to strawman or start debate. It's not worth worrying about, it's so common.
>>29051283I wish it WEREN'T common because it breeds irony poisoning and generally ferments anger. The Internet didn't used to be like this.
>>29051285I love some good ironyposting, but not when it's as common as it is now. It's become almost childish.>Popular thing that isn't what I have?>I'll start a thread about thing and pretend to be dumb as a sack of bricks!>Gyattem, W, boom headshotYeah it only works when it's on occasion and about something that most of the community despises.
>>29051279>What's the issue here?Falling torque after peak which translates to stagnant power as rpm increase meaning wasted potential. Under a proper build torque should hold steady so RPMs can do its things and build power. This is NOT a linear power and, it's a logarithmic style curve, meaning around 5k rpm it'll feel like it'll stop accelerating even if there's still 1k more rpm a rev. A real good power curve has torque flat while power is a straight linear looking like a diagonal line until redline.
>>29051308>meaning around 5k rpm it'll feel like it'll stop accelerating even if there's still 1k more rpm a rev.Not true. Torque is instantaneous power. But when the engine spins faster there are more impulses of torque in a given time so you can accelerate more even as torque is dropping. That's a reason why we use power as a measurement, too.It's a decent set of curves. Would an engine that stayed at 650 the whole time after 4252 be better? Sure, but that's pretty good.
>>29051313Yes but look closely, torque is falling faster than rpm can compensate for power, really that engine will feel really good at low RPMs and speed but if you soon the motor over 4.5k it'll feel dead, that means a shifting point around 4.5k-5k, again a proper curve should be linear. The blower makes this motor hit hard at low revs but chokes the top end, is obvious from the curves presented
>>29051317Yeah that all's fair. Except I do think it would be accelerating more even up until redline, not a lot more at the top end, but more. And I think that given normal gear ratios it would be best to rev that engine all the way to fuel cut as the next gear with slightly more torque will accelerate less - it doesn't drop off that hard.But would variable valve timing or a big turbo actually make it drive better?Don't get me wrong, every car I've had is DOHC and most had vvt though I have driven plenty of V8s hard and one V10. I think OP's curve looks nice, it's got a lot of power over the entire rev range that you'd use when redlining and imo the curves say it's still accelerating even quicker at the end of the range. That's good, not for a pro drag car where you'd want big top-end, but a hot street car where midrange is nice and you don't have to fully rev it unless you need to.
>>29051323So to truly determine the answer to this question it'll get complicated because it'll depend on the torque at the wheels and rpm and power and gear at what speed, as long as the torque at the wheels is higher than the wheel torque of the next gear, it'll accelerate faster, however, power is power. 550ft-lbs per second per horsepower is still 550ft-lbs per second per horsepower, so if power doesn't continue to climb then it'll stop accelerating. Now you might be right up to a certain speed because there power curve here never goes truly flat or worse, negative, so to truly determine the answer to this question we'll need to know the gear ratios of the transmission this engine is paired to
>>29051210just slap a turbo on and make it kick in at 4k problem solved
>>29051328>so to truly determine the answer to this question we'll need to know the gear ratios of the transmission this engine is paired toYes, totally, gearing's a big part of this.But, given normal gear ratios, I think it would accelerate more at redline than if you shifted earlier into the peak torque range.
>>29051331It gets even more complicated when we consider mid corner loads where torque is even more important than horsepower because high load and low torque will load to bogging which loses mid corner momentum. The mechanics of it all really is complicated and the simple discussion OP is going for isn't exactly simple once we consider real world scenarios
>>29051330Enjoy your turdbo lag
>>29051334For sure. This shit is never that simple.And when you aren't at 100% throttle all the time it gets even more complicated. Peak hp and tq numbers aren't enough to base a decision on.
>>29051338>when you aren't at 100% throttle all the time it gets even more complicatedMeant to attach picrel.
>>29051338Agreed, people focus too hard on hp and tq when a vehicle includes much more than just the motor
>>29051339That's actually a cool graph
>>29051335it's 2026 grandpaa turbo engine will make more torque at a lower RPM and have a flatter powerband overall than an N/A tuned engine
>>29051343Bitch please, the time it takes your turbos to spool is the amount of time my big dickplacement motor punches itself several car lengths above your turdbo coping small dickplacement tiny motor
>>29051342It is. All the power curve that comapnies or normal dyno results show you is the 2D slice of the back right wall (but from the other side, so rpm increases to the right). But there's nuance to everything else and most people don't do wide open throttle every day. A test drive is a lot better than looking at numbers online.
>>29051264The only lifters I trust currently, are the Johnson lifters. They're about $900 for a set. The GM Delphi or LS7 style lifters recently have all been junk.
>>29051344Twin-scroll turbos work extremely well on V8's with the exhaust pulse scavenging off each bank
>>29051356Isnt that strange how EVERYONE except for this one company with the specific magic formula just can't seem to make a lifter that doesn't munch its shit inside an LS engine?I wonder if this sort of thing ever happens to OHC engines?(it doesn't)It's almost as if it's a flaw in the engine design...
>>29051344If you'd ever exited a corner fast in your life you'd know that as you gradually roll on the throttle the turbos have plenty of time to spool.
>>29051408Well, a US made LS lifter with extremely high levels of quality control steps tends to be better than something made and overseas by small children in a slave factory.
>>29051413Maybe in a production based vehicle with a turbo. But any aftermarket builds with more power and larger turbos always experience a ton of lag. It's actually kind of a problem for some cars.I see drivers fighting the car as the turbos spool and power increases. Even with aftermarket traction control systems, it's still a bit of a problem
>>29051241I'm shifting my 5.3 at 6300. It's not even a crazy build. No problems here.
>>29051214>>29051228It's cheap and easy like hiring a prostitute to lose your virginity. I've seen car shows were half the cars were LS swapped and it just becomes a "oh wow the 20th LS here. Is that a 5.3 or 6.0!?" For me I don't think I'd ever consider one because I'm a huge diesel guy and I love my mechanical mills that make power running off 100% waste oil. I've been trying to source a Bosch mechanical pump for an ALH for this reason. They're not the fastest engines but you can still build them to 400hp or more and still be dead reliable. Same with the OM606. So 45-60mpg and great performance. Sounds better than the 1320 video Normie LS temu parts LS swap.
>>29051759>some people say that LS engines can't rev, but that's not true - I rev my LS ALL THE WAY TO 6300!
>>29051767Based dieselchad. Most diesels you can buy these days are so cucked that people forget how cool they can be. Love to hear that sound like a train with a tweeting bird on top.
>>29051755Have you driven those cars?You're literally holding back the turbo with your foot, if you're in your powerband the turbo is already spool and it has already built up boost all the way to your throttlebody and it's just waiting for you to allow that massive rush of air into the engine. >I see drivers fighting the car as the turbos spool and power increases. Yes that's because with a turbo your throttle input is not linear to your throttle output, you might put in 10% more throttle but the turbo will want to turn that into 50% more torque. If you're too much of a scrub to accommodate for this with your foot, it is entirely possible to map it into a DBW setup.
>>29051772my japanese engine with superior dohc and 4 valves per cylinder folded a thousand times redlines at 6200
>>29051782>my economy engine is tuned for low RPM torque to improve fuel economy and emissionsWow great insight there buddy
>>29051781Turdbo lag like that is why turdbos are garbage, racing is an art of finesse but the turdbo turns the longsword into a sledgehammer
>>29051772I don't understand why you're so upset. Did some old GMT800 beat you in a race? Are you very young and inexperienced? Or are you just retarded.
>>29051788skill issue just map the DBW and turn on traction control if you're that much of a scrub
>>29051789>say something hilariously retarded>get made fun of>"Y-y-y-you're just upset!!!!!" there's no need to seethe little buddy
>>29051790>computer aids
>>29051798>I DON'T NEED NO COMPUTERbut also...>WAAAA THIS IS TOO HARD I CAN'T DO IT WITH MY FOOTmake up your mind champ
>>29051772Area under the curve in gear, you retarded clown. Learn it and stop being an embarrassing sideshow.
>I cant breeveYes we know
>>29051356isky too
>>29051413corner?
>>29051264>t. never had an LS but loves parroting plebbit memes
>>29051821Buddy the jig is up, your fellow LS enthusiast has already revealed the secret that your normally only discuss within the safe spaces of your LS enthusiast threads >>29051356
>>29051807>ok so it's true that LS engines can't rev, even though I was just trying to say that they CAN rev, but whatabout my area under the curve!!!!! lmao
>>29051807Thank you. Midwits appear to have a difficult time understanding this simple concept.
>>29051210>posts a second hand pickup motor making 700 foot pounds of torque>Are LS engines shit or what?
>>29051789>I don't understand why you're so upset.he's a rotard and got buck broken by seeing too many LS swaps.
>>29051253even mexicans arent pushing dairy trucks to redline retard
>>29051793HOSS HAD DA DURMAX DSULL. GOBBLESS HE DIDNT NEED NO LIBRUL SISSY SPARKPLUGS
>>29051241>which I have to check the valve lash after every single run?Why do wrenchlets keep saying this? Check it at the beginning of the season and that's actually overkill.
>>29051237>Revs to 8k>Idles at 3k
>>29051759I got a 333 Windsor Ive spun to 7. It was still pulling. I'm not sure I wanna go higher though stock block.
>>29051781Yeah I have.I've driven to nearly identical Miatas. One with a 420rwhp turbo build.Another with 229 horsepower 2.5L swap.The naturally aspirated Miata was actually faster. Mainly because you're spending so much time trying to put power down and slow in the car down with the turbo. Naturally aspirated is King.
>>29051241Oh look its the k24 nigger that tried to argue how a bespoke k24 running 98psi on race gas is superior to a 10 liter small block making the same power at atmosphere
>>29051930Thats fine if you keep it to pushrod rpmsIf you wanna get up to DOHC rpms you're checking that lash after every single pass
>>29052052Holy shit lmao>give me the 230hp NA car, I will be able to drive it faster than the 420hp turbo carSaid literally no racing driver ever
>>29052052That is not how it works.
>>29052065Oh look it's the pushrod enthusiast who has to make retarded rules to stop his pushroddies from getting MOGGED by honda family sedans
>>29051251This. There shouldn't be a single legitimate reply to OP until this info is given (OP likely doesn't even own a car).
>>29052183OP doesn't even have enough money for a bus ticket. Probably doesn't even have a bicycle. Probably walks everywhere like a major poorfag. Lmoa
OP is dumb and poor and has bad personal hygiene
>>29052181nta but you're pathetic lol
>>29052211Seethe lmao
>>29051356at least for chryslers, howards seem to be breddy gud, although they're apparently just repacked morels
>>29051408most lifter problems are because of inproper break-in procedures that flat tappets need. some instructions specify a certain type of oil, either by name, or by zinc content, then people take shortcuts by just using diesel oil or something silly like that.or they don't check that the lifters and cam lobes have a crown and taper to them respectively, to ensure the lifters actually rotate for even wear.or they run the initial break-in period with double springs that have pressures way too high so the cam gets eaten by the lifters digging in too hard, instead of running single springs.it also doesn't help that dealing with flat tappets is slowly becoming a lost art since most shops usually work with roller cams, the people that were familiar with flat tappets are retiring or dead.
>>29052178The pushrod engine in this 7000lb truck is capable of revving to 11,000rpm yet it went 1000 miles without having the lash adjusted. Explain that.https://www.youtube.com/watch?v=6rWyfYO8Y_M
>>29051210Hey retard, do you have any idea what you're talking about?
>>29052263>requires aerospace quality control to build>literally has a 1000 mile life spanWait until you hear how how OHC engines can rev when you go to those lengths
>>29052260>if you jump through all these hoops everything is fine! >(as long as you don't put heavy valve springs in it to be able to actually rev high)Or get this get this get thisMaybe it's just a shit valvetrain configuration?
>>29052290most people moved to roller cams because of those hoops
>>29052295You mean the roller cams with the roller lifters which constantly get munched unless you buy this ONE SPECIFIC BRAND which somehow has the magic formula to build a lifter that won't get munched by your flawed valvetrain design?
>>29052289>requires aerospace quality control to buildAny drunk redneck could build and engine like that in his shed. >literally has a 1000 mile life spanNope. Still ran fine after the race. >OHC engines can rev when you go to those lengthsSure they can rev but are they able to make 1000hp all motor? Do they make enough torque to move 700lbs of rotating mass for 1000 miles? If so please feel free to show some examples.
>>29052314>noOooOooOo IT HAS TO BE ALL MOTOR BECAUSE IT JUST DOES OKAYHere comes that pushroddie cope again
>>29052317Why would you think OHC engines are superior to pushrod engines when they can't make power without forced induction(a crutch)?
>>29051250seems fine to me
>>29052256I'm running morel 7717's in my LS and so far they haven't shit themselves.
>>29052318>NOOOOOOOO YOU CAN'T USE FORCED INDUCTION IT'S CHEATING!!!!!!!!
>>29052319This is what a LS Dyno should look like.All motor LS3Notice how it doesn't make more torque than horsepower.Since it's not a farm engine, that's normal.
>>29052317>>29052321There are people running Chinese turbo kits in their LS powered shitboxes that would absolutely destroy whatever you drive. Cope, seethe and dilate.
when you turbo the pushrods they hold the speed record for ICE land speed record.
>>29052326and they're getting mogged by chinese turbos on honda family sedan engines
>>29052330so where are the hondas that can go faster than this>>29052329
>>29052332>has to resort to the one mongolian basketweaving record that no bothers to compete foraverage pushrod experience
>>29052335there have been tons of poor cylinders competing for the salt flat record.
>>29052326>Chinese turbo kits in their LS powered shitboxes
>>29052336>no sponsors on the side of the car>"THERES TONS OF COMPETITION!"doubt
>>29052340there didn't need to be a sponsor for your 1000 HP k20 engine that runs on race gas, why do you think there needs to be one for the salt flats? just bring your awesome mogging K20 to the salt flats. there doesn't need to be sponsors. only engines that can actually comepte.
>>29052296considering how many pushrod engines have been made through the decades and are still out there running, and the propensity for people who have bad experiences with anything to typically be the first to talk about it online...i really do not think the issue is as bad as you and others make it out to be
I don't know why people get so upsetti spagetti over the LS platform. It's extremely popular for a reason. There's millions and millions of the fucking things out there and the aftermarket is HUGE for them.Yeah the DoD lifters suck. Nobody is denying that. But they make cheap kits to get rid of that shit. Tuners are everywhere for them. My local LS tuner has done two of my vehicles, the guy is an actual genius. I daily drive a cammed and tuned LS powered vehicle. The LS is good stuff man.
>>29052378OP is just buck broken. it's just one buck broken faggot who's been at it for weeks. No one with a healthy relationship with their father hates the LS.
>>29052332>Honda S-Dream Streamliner>FIA Class record of 261.875 mph>set in 2016>engine is based on same one in the S660https://global.honda/en/newsroom/worldnews/2016/c160922Honda-S-Dream-Streamliner-Bonneville-Records.html
>>29052387wow, that's slower than PRODUCTION pushrods.
>>29052366This is what a land speed car looks like when it's competing for a record that people actually care about lmao
>>29052322adding an extra 200lbft to the bottom end of the curve doesn't make the engine worse in any way.
>>29052367Yes there's plenty out there and that's why it's well documented that they can't rev and that LS engines munch lifters and spin cam bearings.
>>29052399I wonder why it doesn't have a K20. are you suggesting turbine engines mog pushrods or OHC does?
>>29052404Yes turbine engines mog piston engines for land speed which is why nobody competes for the the mongolian basket weaving wheel driven piston engine class
>>29052406but it seems the k20 nor OHC mog pushrods as previously thought.
>>29052412I also hold the record for fastest lap around my street, pushrod fags eternally btfo
>>29052414>lap around something = outright speedthe k20 nigger's buck broken brain performs a non sequitur.
>>29052415But why can't pushrods get the fastest lap around my street?This must prove OHC is superior!
>>29052402CHRYSLER SMALL AND BIG BLOCKS JUST CAN'T STOP WINNING
>>29052416do OHC go 400 MPH around your street? if not, then they're still slower. try to figure out what the topic is actually about, K20 nigger-san.
>>29052423why can't pushrods lap my street fast?Too heavy perhaps?
>>29051210That dyno sheet is preferable you racelet retard.
>>29052431>raceletWhat sorta racing you doing where you'd prefer a 6000rpm redline?
>>29052436The redline is build dependent, that graph is preferable for whatever it happens to be.
>>29052436the one that produces 400 MPH cars, something you can't post from OHC.
>>29052442yeah didn't think so champ
>>29052446OHC chads too busy mogging pushroddies on the circuit
>>29052452so not going faster than 400 mph? yea, didn't think, nigger-kun.
>>29052455top speed is for turbinescircuits are for OHC chadsdamn what does that leave for pushroddies?
>>29052460it leaves a higher top speed than OHC. so basically pushrods are physically faster as we can all agree.
>>29052452>ohc's>going fast on a tracklmao look who's getting mogged by a 52 year old go kart with a pushrod truck engine.
>>29052448You don't own a car. You literally have no clue what you're talking about. It would be embarrassing actually if you ever went to a space with people who race. They wouldn't even reply it would just be like a side eye to one another.It's flat for 1k rpm. Very nice. OHV retards can't be saved spiritually, but they can at least have flat shift curves.
>>29052468>pushroddies have to crop everything out so you can't see how desperate their cherry picking islmaoRyan Tuerck at #10 and Travis Pastrana at #6 is all I need to see because those dudes aren't even racers
>>29052470Imagine if instead of being flat, it kept climbing for another few thousand RPM! Then it would be an engine which people actually race on actual race tracks.
>>29052475I won't disagree, hillbillies are retards, but the graph for what it is is good.
>>29052474What's cropped out? The pushrod engine in 3rd place is the fastest combustion engine at the event everything else is slower and not worth mentioning. Well except for the 25 year old pushrod powered Viper btfo'ing everything else lol.
>>29052484>at the event>"yeah you know the event... the thing... that event... you know the one with the cars...."just pushroddie things
>>29052502cmon anon even my downie ass could see he was referring to >>29052468
>>29052543Yeah the picture with everything cropped out except for the hints of the obviously non-professional drivers
>>29052551i punched in the names in the middle column and each time a wikipedia page on that vehicle showed up
>>29052555>i punched in the names in the middle columnin jewgle*
>>29052555Did you punch in the names of the drivers and see that they're not professionals?
>>29052559no. luckily for me, i too am an unprofessional (downie) driver
>>29051308>A real good power curve has torque flat while power is a straight linear looking like a diagonal line until redline.So you basically want a Tesla or diesel?
>>29051210>he thinks that's a bad power curveThat looks fun as fuck to drive you retard.
>>29052322It's hilarious because you are stupid as fuck and you don't even realize it. You just posted a dyno chart with almost the exact same power curve shape, just with less power a few hundred rpm later, and claimed it was ideal. I've overlaid and scaled it here. OH WOW PEAK POWER IS AT 6300 INSTEAD OF 5800 HOLY SHIT THAT'S AN INCREDIBLE IMPROVEMENT. OH EM GEE A SUPERCHARGED ENGINE MAKES BIG BOTTOM END TORQUE AND PEAKS EARLIER THAN NA THIS IS HORRIBLE AND CERTAINLY NOT SOMETHING WE'VE KNOWN FOR 70 YEARS.Meanwhile the engine in the OP image is making 20% more power at 6,000rpm so it would still be making more power at 6,500rpm if you chose to rev it out past instead of ending the dyno run at 6,000rpm like how the second chart ran way past the peak of 6,300rpm and ended at 7,000rpm. More torque from 3,300rpm to redline seems like a good tradeoff to me.
>>29051210So after ~4300 RPM, you lose 150 torque? So the torque dip of the LS is basically the FR-S' entire engine torque lol.
>>29052785Camshaft, intake manifold, exhaust manifolds / headers all work together as a system. You can build for a high rpm screamer, a mid range flat curve or a low RPM grunter. Use the combination of parts you want or need for your build.There are many many different combos you can do with an LS. Boost changes everything completely as well.
>>29052822By "high rpm" we're still talking about 6300 right?
>>29052823Here's the camshaft everyone loves to hate. Look at the broad extremely usable torque curve.
>>29051210>retarded power curveFlat powerband between 4.5 and 6k works pretty well for a boomer street car with a mega wide ratio transmission
Nobody talking about transmission gear splits. just>muh torque muh torque muh torque
>>29052869>everyone in this engine thread is discussing the engine and not just randomly discussing transmissions for no reason at all wowsers!
>>29052869I don't think OP possesses enough brain processing power to comprehend transmission ratios, final drive ratios and tire diameter. We haven't even got to torque converter stall / flash speeds in automatics yet.Babby steps.
>>29052881There are drag cars with 2 speed power glide transmissions that are faster than anything you will ever drive.Its all about the engine.Everything please is secondary.
>>29052834Srock 3.7L Naturally Aspirated V6 mustang from 15 years ago is 305hp
>>29052881>making 600hp at redline>shift to next gear>now you're making 400hpYou are very smart>>29052915>look at this exception case, it is very applicable and on topicYou are also very smart
>>29052924Yes we know gears exist buddy, you can choose whichever ones you want, we're talking about engines.
>>29052931Put an f1 engine in your pickup truck then. It makes more power.
>>29052932It would indeed generate more torque at the wheels
>>29052937>at the wheelsWhoa buddy I thought we were talking about engines
>>29052946Yeah that's the cool thing about the little horsepower metric on the dyno sheet buddy - it let's you compare what the engines could theoretically output at the wheels, without actually having to go through all the gearing calculations. Amazing isn't it?
>>29052956Isn't the hp chart on dynos either done on a 1:1 ratio gear or adjusted mathematically to represent 1:1?Pic only mildly related.
>>29052932>>29052937>>29052946Let's pluck the diesel motor out of a Freightliner or Mercedes lorry and throw in an LS or F1 engine, surely it will make the truck faster. Especially hauling a trailer or a tanker of water
>>29052965The purpose of having a metric which consists of both torque x RPM is that you can compare engines regardless of gearing.Whichever engine has the higher horsepower output will be able to generate higher wheel torque at a given road speed, you don't actually have to go through all the calculations of:>"this engine makes X torque at Y RPM so if we geared it with Z ratio it would be able to put out A torque at B road speed, but this other engine makes C torque blah blah blah...." You can just look at the horsepower figure and see which engine has the greater potential for wheel output.
>>29052969It would indeed be able to impart more torque to the wheels of the freightliner
>>29052969Why has nobody done this? I guess you're just smarter than every auto manufacturer that has ever existed.
>>29052965What he will never understand is that a the engine's powerband needs to work together with the gear ratios of the transmission, how close or wide the ratios are. If your Supra makes 1200hp at the top of 2nd, but only 700 at the bottom of third, then you may be losing a lot of time. Making 1000 at the top of 2nd, and 1000 at the bottom of 3rd may be better. Or you could get a different transmission that better matches the engine, but that is generally much more expensive.
>>29052987Because Gasoline engines will never compete with diesel for torque. Gas Babies need their hands held to achieve ignition.
>>29052393>production carHow many have been produced?
>>29052915>transmissions and engines that literally gets rebuilt after 1(one) single pass by a team of professional rednecksalright man lmao
>>29053040Two speed powerglides are incredibly reliable and have a large aftermarket support. They're easy to rebuild too if you manage to smoke one.What the fuck are you talking about?
>>29053000>Or you could get a different transmission that better matches the enginewowsers you solved the problem and made your own retarded argument irrelevant
Torque is just a function of gearing. And unless you're driving a locomotive only so much is usable
>>29053025more than OHC cars that can do 400 MPH which I still have yet to see a single example of posted anywhere despite OHC supposedly being better.
>>29053282Are there no official numbers?
>>29053285are there official numbers for OHC being better than pushrods like the busriding OP claims?
>>29053292probably a few lap records here and there(everywhere)
>>29053292Different curve shapes, that don't peak early? Yeah many OHC stock cars. Sold by the millions.The shittiest celica gen made peak porque at almost 8k rpm iircI'm assuming that by now you are aware that the SSC car has not been produced though
>>29053295so none regarding horsepower, speed, reliability, or anything that actually makes an engine better vs another engine?
>>29053298if the SSC hasn't been produced, how are there videos of them driving it?
>>29053302It has not been produced as a commercial street legal product...It's a one off, which is fine, manufacturers make them all the time to test shit. And I think that's very cool. Like that mercedes rotary prototype, or the cadillac mid engined v16 car.But it has no plates, it can't be driven on the street, it hasn't been mass produced, it is not available to the public. It's not a production car
>>29052393that thing is OHC though?
>>29053312why are there multiple cars filmed in different colours and being driven on the street and why is there people who own it if it's a one off? that was never for commercial sale?
>>29053314it's not
>>29053317If that's true then I was wrong. I thought that was a car that was known for false claims and never have been actually released but things might have changed
>>29053322you must be a fresh off the boat newfag because all of that shit was debunked years ago.
>>29053320it is
>>29053300>akshually I didn't want to be able to drive fast around a circuit anywayAverage pushrod experience
>>29053340sounds like you don't want to be better than pushrods, either. don't want to make more power, don't want to be more reliable, don't want to be faster.
>>29053327that's one way for OHC to be better than pushrods, is to just claim to be the pushrods.
>>29053345Faster around a circuit, yes that is the goal. You pushroddies can sour grapes about it all you want
>>29053349you can see it's OHC by just looking at it.
>>29053350if the goal is to be inferior to pushrods, then more power to you.
>>29053354get mogged on the circuit pushroddie
>>29053327
>>29053358no source and they don't make any claims about pushrods on the manufacturers websitesorry you lose.
>>29053357get mogged in reliability, horsepower (even horsepower per liter lmao), and speed.
>>29053359oh ur dumb. ok
>>29053362>cope
>>29053360but not speed around a circuit, that's a step too far for pushroddies
>>29053364so nothing regarding engine vs engine comparison. sounds like pushrods win.
>>29053368Turns out a massive 10L engine isn't so great when you want to actually go around a corner
>>29053379the pushrods that are more reliable, make more horsepower, and are faster than OHC aren't even 10 liters.
>>29053382then why can't they turn?
>>29053387they do. have you tried using the ignition?
>>29053396then how come they keep getting mogged by OHC chads around circuits?
>>29053379Yet an 8.2L engine mogged all the other engines >>29052468>>29053400Remember what happened when a Nascar entered the 24 Hours of LeMans? I bet you had to try real hard to forget that one lol.
So what is the difference between pushrods and overhead cams anyway
>>29053453overhead cams are better in every way.
>>29053443Wow it mogged the renown racing driver Travis Pastrana in his famously competitive "Subaru Brataroo 9500" racing car by 0.5 seconds!>this is the crowning achievement of pushroddies
>>29053443>Remember what happened when a Nascar entered the 24 Hours of LeMans?yeah it lost.
>>29053464What part of it's a 50 year old go-kart do you not understand? Pastrana is driving a modern million dollar + car. https://www.youtube.com/watch?v=ys9PwUmxAmU>>29053466Yeah because the European made tranny blew up. The engine ran prefect. Up until the tranny failure it was first place in it's class and was causing massive amounts of seethe.
>>29053504>the crowning achievement of pushroddies is to propel a prototype racing car to a 0.01 second victory over A FUCKING RALLY CROSS carDo you ever compete in races that are actually COMPETITIVE?
>>29053504>Yeah because the European made tranny blew up.See this is the problem with having a gay pushrod engine which makes its power through torque instead of RPM - you need to make all the components in your driveline stronger and heavier than if you were making the same horsepower through higher RPM.
>>29053504oh so it blew up and lost? funny that.
>>29053400how come OHC gets mogged by pushrods period no cope qualifiers?
>>29053513>pushrods are bad because they make too much power and torqueI can see why you people haven't made it to the moon yet.
>>29053558Why didn't they just put a stronger gearbox in it lmao?Oh right, because that would be HEAVY and heavy doesn't corner so good.High RPM lightweight OHC chads WIN AGAIN!
>>29053540If we're being honest here, without qualifiers we all get MOGGED by 2 smokes with pneumatic valves
>>29052729Dam anon, when's the last time you got your eyes checked?
>>29053561They used the standard Nascar tranny to keep the car more authentic. It's not really designed for endurance racing. The team fucked up. It doesn't seem to have any issues cornering...https://www.youtube.com/watch?v=TPxOfau4frg
>>29051250>Should pull past 7,000rpm with ease.No.There's no reason to do so.damn retard
>>29053577Maybe if they'd put some DOHC heads on it and made their power a little higher up in the rev range it wouldn't need some giganiga tranny
