Detroit Diesel Twin Turbo 8V92TA

[TheHsvHolden]

in australia the 8V92TA was rated 475 horsepower,

it possable it would make that with the intercooler fitted.

[Blackscorpion1963]

Ha, these 2 strokes sure could rev alright, one problem though, the gas bill! They were the thirstiest beasts on the block.

[CrudeDude]

The Detroit Diesel Engine;

The most efficient way ever devised for turning petroleum into noise without the adverse affects of torque.

[atrasche1]

You are an idiot if you are that close to a running engine on a dyno making a pull.

[CaptainBig8IIIIIID]

are two strokes more efficient than four strokes because they fire at every cycle?

[MrLostcause1983]

A 2 stroke diesel engine needs the blower, a 2 stroke diesel is considered naturally aspirated if it only has the blower.

[The215x]

@MrLostcause1983 - i thought it was considered naturally aspirated if it doesnt have a blower or a turbo......if it has a blower then how does that make it natural??

[MrLostcause1983]

@The215x A 2 stroke engine cannot "suck" in air due to the location of it's intake ports (sides of cylinders), so it needs the blower to force air into the cylinders.

[The215x]

@The215x so you are saying that a motor with a supercharger is naturally aspirated?? i know about the intake ports on the liner and that stuff, the first diesel ever invented was a 2 stroke and it most likely wasnt supercharged,, the 2-stroke diesel had to (scavenge) for air.........if it forces the air in, then i think it would not be naturally aspirated.

[reducedfat11]

@The215x the blower on a detroit creates very little pressure. since the detroit has a sealed crank it makes no bottom end pressure to self scavenge. the blower is just there to move air through the motor. i believe it makes no more than 5 or 6 psi, i could be wrong on the psi though

[ollonsvin]

@The215x Rudolf diesels first engine was not 2-stroke,it was a four stroke

[KillerDog213]

That's not just 2 turbos!! if you notice they feed a blower atop the engine sitting between the heads!

[kblackav8or]

@KillerDog213 The blower is not a power adder. All Detroit 2 strokes have a blower. It does not create any boost in this application.

[MattytheDem]

@kblackav8or a Detroit will not run without the blower

[kblackav8or]

@MattytheDem I know that. In fact I said that. I have to keep correcting the idiots that call them superchargers.

[MattytheDem]

@kblackav8or and also this motor would be an 8v92TTA because it has 2 turbos instead of one

[CorbinatorLoL]

@MattytheDem  TAB is twin turbo ,not TT like many think. TT stands for "tailored torque" which first came about in 1978 or 9.Those were the "fuel squeezer engines".

[MattytheDem]

@kblackav8or a motor that DID use the blower as a supercharger was the 275 or 300 horse iron lung cummins motors of the early 50s

[MattytheDem]

@kblackav8or and to the next person that wants to call it a supercharger: its a SCAVENGING BLOWER NOT A FUCKING SUPERCHARGER!!!!!!!!!!

[cobra96svt570]

I never cared to much for any V- series detroit, especialy the 92' series. Ill take the classic 71' series.

[spasm027]

Enter your text here.

[skeezix91]

Big red jimmy!

[Otter70]

Bad Ass Mother Fucker

[ajofscott]

Catipillar is insane on parts prices and their suppport is lacking to say the least. It took 6 months of constant fighting with sales reps to get an OEM engine package put together complete with all necessary auxilliary drive housings.

[xmodrock]

torque?

[JGMagoo]

If you want to hear a WILD-SOUNDING Detroit Diesel, search YouTube for, "Motor Detroit Diesel 6V53". This is an obviously HOT engine set-up, and operating with just a starter-ring flex-plate (for an auto trans.) and not a flywheel.

[JGMagoo]

@egpg2000 You are totally in error! The turbos are 100% exhaust driven. There is no 'clutch'. The roots-type supercharger (this engine has both a roots blower and 2- turbochargers) is internally gear driven with no method of disengagement..

[JGMagoo]

@PITBULL35383 Big pump. How fast do you want to put out the fire???

[allenscott19832008]

that is 1 badass motor i love the detroit 2 stroke motors

[4d1Nash]

supercharger is gear driven. Turbos force feed the supercharger, creating a neutal pressure in the blower. It just free spins. at a certain psi

[gblpst81]

The missing belts drive the supercharger if I'm not mistaken. So why wouldn't they want to test it with the turbos AND the blower? That blower's got to cause some drag to the airflow just sitting there stationary. I'm confused.

[JGMagoo]

@gblpst81 You are mistaken. The roots type blower is internaly gear drivern. ALL Detroit 2-stroke diesels have a blower. The blower is 100% nescessary for starting the engine. After the engine is running fast enough to activate the turbo(s) the blower becomes unnescessary, as the turbos are more effiecient at moving large quantites of air, once they are spooled-up. In fact later turbo'd Detroit Diesels used a 'Blower By-Pass' valve to let the air move more freely past the blower.

[JGMagoo]

@gblpst81 The missing belts you see are for accessories only, such as the cooling fan and the alternator, which are unnescessary on the dyno, as cooling water is pumped from a source separate from the engine....no radiator.

[gblpst81]

@JGMagoo That makes sense, but what's the top pulley that's turning slowly from the vibration? The alternator pulley is in line with a different pulley, the one to the right, which appears to be spinning at a high rpm. Is it a pulley on the end of one of the blower screws? if the blower is gear driven, that would be a good way to drive the alternator. Do they have the blower running off the timing gears?

[JGMagoo]

@gblpst81 The pulley that is turning slowly (from vibration) is the free-turning fan hub. There is no need for a fan on the dyno as the cooling water does not go through a radiator. The alternator is driven by the pulleys slightly above it. These pulleys are turning crankshaft speed and are known as 'accesory drives'. The blower is driven by a dedicated gear-set inside the engine. The camshaft(s) on a 2-cycle Detroit turn at crankshaft speed.

[gblpst81]

@JGMagoo Is this an engine for a fire sprinkler pump? I've seen very similar configurations on Detroit Series 60's that are used to drive fire pumps in large buildings, hence the red color.

[JGMagoo]

@gblpst81 Yes, it says fire pump in the introduction. Back in my truck selling days you would see Detroit and other engines painted in almost any color depending on what chassis they were put in. Fords were painted blue, Internationals red, Peterbilts white, Whites chartruese, etc. etc. Nowdays, with 'just in time delivery' they mostly paint all engines at the factory the standard OEM color.

[gblpst81]

@JGMagoo Did you sell mostly day-cab rigs, sleeper rigs, or a little of everything? I'm just starting to learn details about what engines and transmissions are available in rigs. I know some about Freightliners, Petes, and Kenworths, but not much about Volvos, Internationals, Western Stars, etc. I know that there are a lot of Detroit, Caterpiller, and Mercedes engines out there, but I've heard Caterpillar stopped making them. Do you know if that's true?

[JGMagoo]

@gblpst81 Yes. Caterpillar has stopped offering engines for the US on-highway market. They have entered into some kind of an agreement with Navistar (International) to produce a Caterpillar-branded vocational truck for worldwide consumption. I don't know what engine(s) that truck will use yet. Most US manufacturers are starting to follow the European model of offering their own engines. (Called 'vertical-integration'...ie: a Volvo in a Volvo, an International in an International, etc.)

[xmodrock]

@JGMagoo thats sad... it really is... no one is gonna use the cummins anymore or the CAT

[kennjohnsen]

@xmodrock

So what are you going to use ?

[xmodrock]

@kennjohnsen i honestly don't know.. i always liked my big rigs with cummins and cats or back in the day detroit diesels

[JtsGreene]

Well now it is a 8v92TTA

[NeilLB7]

No belt because they don't want any parasitic losses on the dyno. They want complete and full power. It doesn't need the alternator...because its not hooked up to a 12V system. And the coolant is being pumped with a standalone pump system part of the dyno setup.  Its getting all the coolant it needs.

[4freespeech]

Rated 643@ 1800, cranking out 450. A bit shy, it appears.

[BORATMAKEMOVIE]

@4freespeech i gotta say look at the torque tho. haha

[jerktrucker]

wish i could get one of those

[DragonTamer2345]

Why no belt? aren't things like water pumps and alternators good for engines?

[FarmingtonNHFire]

This NEEEEEDS to be in my pickup.

[Slimer2x3]

Curious question; What does the "A" stand of in 8V92TA?

[kalanike]

@Slimer2x3 aftercooler...

it's located right underneath the blower on the engine block.

[JGMagoo]

@Slimer2x3 The 'A' stands for 'Aftercooled' ...8V92TA = 8-Cylinders, V-configuration, 92-cubic inches per cylinder, Turbocharged, Aftercooled. The aftercooler is located under the supercharger, between the banks of the engine. It is an air-to-water type that uses the engine coolant water in a radiator (heat-exchanger) located in the intake air stream.

[omegadirective3824]

um how come there is no belts on the pullys

[SuperDieselbitch]

Holy Balls

[gpzDave]

Enter your text here xD

[dukesdad1]

Absolutely LOVE Detroit DSLS

[baallzdeep]

guys, I have to find the vid of a truck racing in notre adme du nord truck rodeo, its a 8v92 and I know the guy who had it before and it revss to 4200rpms!!! beleive me it scream! let me find it..

[baallzdeep]

@baallzdeep GOT IT..

/watch?v=4mq9jz1hibs

listen to it how it revss! by the way it runs on propane also

[undercoverLsX]

I thought the 8v92 was the supercharger designation, yet this one is turboed?

[bigtoyota479]

@undercoverLsX It's both! The supercharger is driven from a gear in the back of the motor. You can just barely see the supercharger in this video down in the valley.

[mpwelk]

by the time you put a Donaldson on there it won't be 643, and people will be burned alive in their homes! :-P

[Traf94220]

WTF THE ENGINE IS ACTUALLY RUNING ? !

[turbosuperiority]

Is this on full tilt castor? I'm seein 450 horse and she's rated for 643?  Just wondering.

[crisp2882]

it sounds awesome

[NTC335]

萌え☆

[eddimull]

The alternator looks funny attached on to that massive of an engine; "I"M A BADASS DETROIT!!!! and I'm an alternator..."

[CUTCAT55]

so smooth on full song , i don't know why anyone would ever want to design a 4 stroke motor when ya have such a beautiful 2 stroke.

[JGMagoo]

@CUTCAT55 4-strokes are more fuel-efficient and produce less emissions. About the only advantage to a 2-stroke today is maybe a slight weight advantage.

[fflyboy192]

if chuck norris were to take a shit this would be that shit

[stvna8040]

are these detroit motors in V-formation or in-line?

[dustystix76]

@stvna8040 V..note the V behind the 8 in the 8V92TA

[MEGAD3TH]

red like a cummins! loll

[flyingscrapyard]

It would be nice to have this in my old C30. Might have to shift the firewall back a bit, put heavier springs under it and leave the bonnet off but you'd sure scare yourself taking it for a spin.

[seapeddler]

It was designed for the Fiero GT.

[24preacherboy]

looks like egpg200 is a real looser here.

[smokeybbear41]

Hey let me have that thing, I'll shoe horn it in to my 03 Dodge Ram 1500

[rdh194751]

This had to be shot at the factory engine test. Each engine was run in and checked for H/P and torque. It was so loud if you had bad teeth you couldn't work there from head pain.

[supershy13079]

I like it. I love the old detroits. Looks great too! what are ya gonna put it in?

[Bus7777]

They should put it in a smart car. LOL :-P

[24preacherboy]

@egpg2000

Get a life.

You sound like a guy (or gal) that is sitting at their computer in their underware looking for a fight.

Embrace reality, its the first step to recovery.

[8V71TA]

good generator application choice, how many ft high are the tanks?

[gm16v149]

You're talking about air-to-air aftercooling, this is jacket-water-aftercooled (JWAC). The aftercooler is under the blower in the V.

I used to own a KW with a 8v92TA which I rebuilt myself a couple of times over the 17 years I owned it.

[gizmo98550]

correct me if im wrong.. isnt that blower.. really a air pump to push out the exaust? beings 2 strokes dont have em? or.. is it some have them and some dont? i know the 453 inline has a blower on the side thats used for that

[wwgj25]

@gm16v149 im trying to get a 8v 92 tt and i was wondering about how much it costs to rebuild one?

[gm16v149]

@wwgj25 Depends how far you go but last one I rebuilt was 15 yrs ago. My guess you're looking $10-20,000 depending if it's just a basic build or you machine the block and crank etc.

[FarmallDoctor]

Awesome!! Can I have your job?

[punhoss]

Quiet motor....;(

[F650Rcr]

whats the torque rating?

[2022cjk]

not all 2 strokes need to be blown. Ive got a 4 cylinder 2 stroke Detroit in my 1978 Ottawa yard switcher. No blower or turbo

[sl3406]

All two stroke detroits have a blower. They won't run without it.

[stehansen0051]

@sl3406

I think more precisely all multi cylinder two-strokes need something to shove the air into the cylinder, but a single cylinder can use piston coming down into the crankcase as a power source for the air movement.

[24preacherboy]

What you have is rare than

I used to haul locomotive engines (Detroit 2 strokes) and they had no blower, but a turbo.

The turbo had to be spooled up before they cranked the engine to get crankcase pressure up to move air in then engine.

I doubt you have an engine without a blower.

[robby844]

impossible

[GOLTURBO555]

poor kitty cats, close this cummin eater!

[zero1898]

Isn't that the dual forced set-up? Turbo's as well as a supercharger if I am correct. Our work trucks have the same engine but a single 90mm turbo

[BuiltByDestroyer]

Where the hell do you see a blower at? It's not a twin charged engine, just twin turboed

[ronscons]

between valve covers at top is a supercharger--fyi

[robby844]

there is no supercharger it a blower fyi

[1tristan1henderson]

@BuiltByDestroyer

All 2 stroke diesel's MUST be blown. This one is no exception.

[mad4diesel]

I would love to have this engine in my truck at work.

[dustystix76]

now that looks like the engine that i was talkin about on that V16 DD in yer other vid! the one at the mine is just older, it has 4 center bolts on the heads

[kalanike]

What type of equipment did this beast come out of?!?!?!?

[Danbar21]

Its a Standby fire Pump engine !

[kalanike]

ah okay, thank you bro

[Learnthethingsido]

@kalanike 

[DieselsAndDiodes]

beautiful engine, shop and dyno setup.

[flapperhead]

, the displacement is 92 cu in per cylinder.. the modern 4 strokers are anywhere from 130-150 cu in.. now lets compare the dd 149 cu in series which got around 400+ torque per hole at 1900 rpm..

[gizmo98550]

mercy sakes! listen to that thing GROWL.. my god i love the screamin detriots! and that turbo.. scuze me.. THOSE turbos.. another gorgeous sound.. just screamin on that front too.. incredible sound and there is no beating it

[Hotrodx199]

I don't see any intercoolers?

[MetalTeamster]

Horsepower is there, which is a function of rpms, but the torque is pretty much absent..

[amfan12]

This doesn't turn any faster then a normal 4 stroke big diesel. Not much more then 2400 RPM. So the torque IS there.

[MetalTeamster]

#1 I drove trucks with these World War 2 tech engines, I know how they pulled hills, which was SLOWLY. Look up the specs on these old 2 cycle engines, this claim of 643 hp is very suspect. If it does make that, it won;t do it for very long at a time, and the torque is no where near what today's 15 litre 4 stroke diesels found in big trucks make.

[amfan12]

643 HP @ 1800 RPM is 1876 ft-lbs.

Cummins QSX 665, displaces 15L, makes 665HP and wadda know, makes 1875 ft-lbs of torque, and that has a 2L advantage over this detroit.

Torque is what pulls you up a hill, HP gets it done faster. A 80,000 lb 600HP tractor has 133/lb per HP, while your 120HP,3000 lb eco-car has 25/lb per HP. The truck is gonna be slow no matter what. To make it even somewhat fast up hills - like normal car speed, you would need around 4000HP.

[Mad75Don]

1.you can fire 2 Cummins ISX(600 HP 15.3L dis) with the amount of diesel this thing uses.

2.The ISX got about 2000 ft-lbs torque.

3. The Powerband of a modern(4-Stroke diesel)is wider then from this old thing.

WW2 Technologie LOL It really is :)

[caboversrule]

YA YA YA...Damn ISX's & the neverending EGR valve replacements and regen B.S. I never a 2 stroke leave me sittin' on the side o0f the road. Gimme a 2 stroke in a good ol' Cabover instead of the tupperware torpedoes of today....

[Mad75Don]

Cabover ?...hmmm Go buy a MAN TGA with 680BHP and 2450 ft-lbs.

Or a Volvo FH16 with 700BHP and 2500 ft-lbs.

You won´t find any stronger stock cabover´s.

BTW WW2 is over !! Get over it ;)

[DieselsAndDiodes]

tupperware torpedoes lol

[greeniron32]

Thanks for sharing, a rare sound in 2009! Love the turbo whistle

[52deereman]

Sweet it should be a 8V92TTA  i like it

[dustystix76]

ok stupid question...what is the "A" in the TTA?

[JohnBoyDeere]

Twin Turbo Aftercooled though the after coolers are not installed in this setup.

[robby844]

yes they are under the blower

[ClassicTVMan81]

Aftercooled.