I worked 22 years at the Redford plant, to go to engine test and see them run was amazing. Full bore from the start, if it broke let it break here was the motto, quality was stressed at every level. The EPA killed the 2-stroke, it was to dirty for them.
Achates Power are looking to bring the 2-stroke Diesel back via the opposed-piston architecture. They aim to demolish the two-stroke Diesel's bad reputation by making it hyper-efficient and get oil consumption to basically the same as a 4-stroke. They're looking at a 3-cylinder version right now, but I really want to see V6, V8, and V12 versions come out someday. If EMD (which Caterpillar own through Progress rail) could embrace this architecture (as they've been making 2-stroke Diesels since 1938), then that could mean Caterpillar (indirectly) getting back into trucks. Then we could hear those two-stroke Detroit sounds again! Imagine a modern opposed piston 12V92 that sounds just like the old Detroits but is truly clean (and I mean actually clean combustion, not "it has EGR and a DPF so it appears clean"). I'm really hoping they live up to their promises, but only time will tell.
@@JuliaCV9 You can google the numbers. A 2stroker produces over 5 times the amount of hydrocarbons and also makes less power and fuel economy per liter. They were incredible for their time but they have been rightfully succeeded by much better engines. Even DDC themselves said this in their 1999 newsletter...
@@DemoFly You sure that's 2-stroke Diesel, and not a 2-stroke gas engine? I wonder what the emissions from a modern EMD 710 are in comparison to a modern 4-stroke of similar size (like the Fairbanks-Morse built Alco 251 engines).
Something I can fall asleep to. As much as I like Cummins and Caterpillar, Detroit comes out on top when it comes to engines like the 12V71, a sound that you can't forget, and a true original. It's a shame they don't make them like they used to, I'd love to go back in time and see these when they were in their heyday.
the engine sound that made me fall asleep (multiple times) was the old CAT 3126 engine that was in the bus I rode throught elementary school. damn I love the sound that engine makes.
@@JuliaCV9 Yep. Novi Schools in Michigan, where I went, had lots of old 7L Cat powered Thomas SafTLiner FS65's until 2013 until they replaced them with 6.7 Cummins powered Blue Bird Visions. I will always remember what they sounded like. It appears that many of Novi's Thomas buses have gone to a day camp called Willoway, who also seem to own a lot of ex-Farmington buses.
You all would have loved the 12V71TT we got from the military. 600HP war power rating for 24 hours straight. Way larger injectors than the N65 injectors we ran in out 12V71s in our building. 108db at 1800 rpm inside the building with 6" twin exhaust outside.
gravelydon Detroits were used in Military Vehicles also.The 6V-53 was used in the M113 at 400 HP after they got rid of the 388 Chrysler they use to have.And then the 15 Ton Trucks like the M911 CHET,M1070 HET,M977-M985 HEMTT,M1075 PLS,MKR-16,and MK-48 all had the 8V-92 at 500 HP before they were given Caterpillars.
I don't know about you two but my 6v71 wrecker was boosted up around 800hp with a big old turbo. Sadly I was the last guy in the Marine corps to it before they replaced it in 98. Rest in peace wrecker 110
The sound of the 70's. My mother knows nothing about trucks but I watched this video near her while visiting, and she said "that sounds like an old truck!" Upon questioning, that specific exhaust note is pretty much seared into her mind as she grew up near a truck route in Winnipeg, Manitoba in the early 70's. She didn't know it was called a Detroit, but she knew what it was nonetheless!
hey now they're all great engines but there is one fact i will say, 2 stroke Detroit has had the longest life span out of all engines, they've been around since the 30s i think and some of them are still used for military if i'm correct so thats at least 70 years of service. They are the most reliable and they will tell one hell of a beating
@@allan9603 I like my strokers, but the 855 Cummins was the best all arounder. Cheaper than a Cat, torquier than a Detroit and were killers with the right pump set up. They don't sound like this but hey, whatcha gonna do.
The hardest part about learning to drive truck, for me, was going from a tractor with a Cummins, to a tractor with a Detroit. After driving the Detroit, I tended to rush shift's with the Cummins. I had to learn to shift slower with the Cummins cuz it lost rpm slower than the Detroit. This would have been back in the 60s and 70s driving my dad's truck's. Well done bud!
Those old school Detroit motors were just...too cool for school :) Too bad they "don't make 'em like they used to." I know the modern four strokes are more fuel efficient, but doubling the power strokes per RPM gives us more....smiles per gallon :)
Good Grief those Detroit's sound beautiful, I collect Military trucks and have mostly Cummins with one CAT thrown in, thats in a Navy snow plow OshKosh truck. I just bought an OshKosh M977 HEMTT 8 wheel drive cargo truck with a small load handling crane on the back, its running an 8V92, I look forward to hearing a lot more of this music!!!
My fire departments pumpers have Detroit's, 8v92ta with Jake 500 hp silver and a 6v92ta 450 hp silver with Jake straight piped. I love NTC 855's but damn them Detroit's and 3406s sound great. The NTC 855's sound similar to the 60 series with the Jake and turbo. Or old ladder truck had an 855 NTF 365 and t906b 5 speed. Not a bad thing. Them military vehicles are fun to play with and work on.
The old M809 and M939 5 Ton Trucks all had Cummins.I have a fleet of them.The 809 and early 939 had the NHC-250 until the later M939 had the 6CTA.Then the M35A3 has that 290 HP 3116 Caterpillar which is overall better than the Multi-Fuel in the M35A2.Caterpillar even use to build Goers that had D333 Cats' in them for the Army,huge 27,000 lbs Carriers.I've been around a lot of the Oshkosh Trucks.I adore the 6NZ in the HEMTT and C18 in the HET making 575-800 HP,but the 8V-92 could still get the job done.
Love your comment man I used to drive them at the CNR railway back in the years and they were prized by the drivers because of the power. they would play with a trailer train with 80,000 payload and yes the sound (music) but 3 to 4 miles to the gallon when they wore out they bought better machines but with much less power wow I miss that sound though!!
great vid man that sound gives me goose bumps. my stepdad drove an old gmc with the same engine in it pulling a milk tanker. i was about 11 I would be up before him on sturday morning ready to go.
@caterpillarnut Well... When the guy drove this to the truck show about 60 miles away from here (I think?) They had to wear earmuffs with a load on. I heard it with a load on passing by with straight pipes, it was almost deafening from outside!
You got that right LOL. dad drove a 318 detroit that had no muffler and at 2400 rpms it was firewalled at 57 mph. His ears were still ringing the next morning when he had to drive it again.
I've seen a 359 Pete with that same type of engine. All I remember is that the tractor was dark green, had aluminum wheels up front, spider spokes for the rear tandem but didn't have jakebrake. The truck was a tractor trailer dump hauling demolition. But he drove very fast on the hills loaded!! I like the way that jake brake sounds on that 12V-71N!!!
We had a 1967 IH conventional day cab tractor with a fuller 18 speed road ranger in it, and a 238 Detroit. It was used to pull heavy equipment, D8 Cats, That thing would bell-er out when it was running. I am sure she was a riding truck, I never drove it but it was very loud! When my dad sold the cats, he started hauling grain with the truck.
best thing for my alarm clock. :D. I had trained in one of these it brings back many memories. passed pretty much anything but a fuel depot. GOD bless the buzzin dozen Eh?
I was already thinking about doing so, but this has most definitely made up my mind about straight piping my 6-71N in our old Bruin we use to haul tractors (Ag) with. Sounds awesome!
Cool Video,brought back some old memories! I saw your overspeed lite on the Tachograph come on,you got her turned up pretty good? Man the last truck I drove that had one of those was in 1976.It was an old Safeway Stores truck from El paso,1964 Freightliner.I watched the Speedograph turn over 1,00,000 miles,something that not a whole lot of people can say they have seen!We used to have to put these paper discs in them,and turn em' in with the paper work.Theyd see what your doin' to their trucks.
you best sounding Detroit on RUclips that think fricken screams like a moanin girl that's a beast truck right there man even though u said that it all torn up and stuff u should keep it that loud man 😎😎👍👍
used to heavy haul with a 74' Pete 359 that formerly had a buzzin dozen under the hood (a long one at that!) but was big cam cummins powered, still a cool flat dash to drive!
We got this for the same price, it was a heck of a deal. Since the body was very straight on it, we decided we were going to restore it and make it look nice. We got some 5 hole aluminum wheels to put on the steer axle.
man there is nothin like the sound of a buzzin dozen on a long pull up a hill I worked for a guy who ran a rock quarry and his big KW dumptruck had a 12V71 and it made an absolutely wonderful sound when climbing up the hill out of the quarry absolutely love detroit sound wish I had one I've got a 1984 S10 pickup that I did a diesel conversion on but i used a Cummins 4BT turbo diesel it is nice ,,,but I would love to have a 353 or 453 instead
We have the technology to make them EPA-Approved but they don't want to spend the money on making a Leaktroit Diesel fitted with DPFs and other things, it wouldn't be the same monster and they would all be known for being pieces of shits because they would be in the shop all the time with faulty computers.
It is.I left you a comment on the other video of it at the drag strip and that rear axle is bent for sure.You can see it on the takeoff.But it does burn the tires really well!
I can also tell by the sound of it - kinda raggedy that the racks are not set right - it needs a tuneup - it should be sharp and crispy sort of rattle and smooth ..... probably the pins are worn out on the rack mechanism... that was a common problem with detroit back then. One thing about a Detroit was that if you run it up fast and keep a good tuneup on it - it would last forever ....
That truck is a survivor-my home backs up to US-26 on the way to Mt hood and I normally dislike the road noise unless its a Detroit- then its all good! but up here there are not a lot of detroits left :(
@maxhauler I do not know but the freighliner I used to drive had 12v71 topped out about 57 mph and only got 4 mpg, but when it came to pulling 100,000lbs up it hill it flat walked! when it got down to 1550rpm.
I can't remember what injectors it had before it was torn apart, but it was definitely not stock, and it was adjusted so it would firewall at 2600 rpms, so it did 68 mph instead of 55 with 5:29 gear ratio.
Our freightliner has 5:29 rear ends and it has a direct 5 speed main box and a OD 4 speed brownie it would probably do about 55-60. Not sure just guessing, once we get a speedo cable i could tell you how fast it goes!
At my docters office I see this older guy who always tells me stories of when he use to build these motors when he was around my age 23 to when he was near 50, said those v12s were so damn loud they'd be shaking the whole building just at idle
Remember it when it was on truckpaper, right bank smoked, 11 large and some change, glad I didn't have the funds to get it. The gearing would have killed me on the way back to Wisconsin.
It's already set at 525-570hp with N90 injectors in it without a turbo along with it turning 2600 rpms. It was orginally going to get 140 injectors in it from what i heard.
Absolutey AWESOME!! I think this is the truck I saw on ebay awhile back- heavy duty suspension, double frame?? that's why the rears are so low-this truck was built for special duty
Hi HotRod man. i'm enjoying the video of the Peterbilt. Love the sound of that engine as it works. I'm in truck driving school tryin to be a truck driver as we speak :)
That would be too low geared for these old 2 stroke detroits. There peak torque is at very high rpms so you want to keep em at high rpms. 4:11 would work out, even 4:56's would help.
@realvanman1 yeah it was fired walled in overdrive. When the governor was adjusted to turn 2600 rpms it would do about 68. I would still rather put different axles on because i wouldnt want to be pulling at 2400 rpms..
@Darkmatter2134 the 12v71 came out of factory as a v12 they were a single block, the 16v71 and 24v71 were joined blocks. and appears that 12v92 is a joined block as previously statedGMC made a gas v12 that was 2 v6 blocks bolted together
@frenchelectrican I would love to find a 3-53 or 2-71 15kw genset for my home emergency backup power but most of the old military units were scrapped around here
cq92larry The way to keep them from leaking was to run a Walker Airsep unit on them. An engine with the crankcase under a slight vacuum does not leak with tight gaskets. Except for the crankshaft, the cam shafts, and the governor. :-D
I 've driven trucks with them 2 strokers, always love the sound of them. Just wish the gears were higher like a 411-390 ratio so I could keep up with hyway traffic at 70-75mph. Instead of 488's at 50mph.
As a child, I would lie in my bed on a summer night, windows open, katydids chirping, listening to the truckers in their Detroit powered rigs, gearing down, going up the hill out of Springfield Tenneessee on US Hwy 41 North. I wish I could go back to that time, and drift off to sleep, not a worry or care in the world. Just a little boy in his bed, listening to the most beautiful sound ever created on God's earth, as he slipped off to sleep
well all i can say for this is its one nice truck that and i like Detroits 1 because of there sound and 2 there were i think at one time a very popular Engine
old Detroit diesels were 2 stroke, therefore they needed a blower for correct scavenging because of the very short cylinder fill time/exhaust time=volumetric efficiency. blower has marginal boost if any under most operating on these engines. turbo charging them gave them the real ponies from boost. fed sequentially to through the blower. thus the silver series Detroit.
The only thing better than a 671... is two 671's glued together! Great sound! I've got footage of a '54 GMC Cannonball with some pretty good 671 audio. I'll post it soon.
I only watched a bit , didn't understand the shifts . Came back and checked again . Non turbo ... I missed that the first time . Now I understand why shifts are early .
Everything needs to sound like that. Kettles, toasters the wind and mother in law's. Love the video!!
Hell yea lol
Heck, wish my wife sounded like that.
My mother-in-law is the only thing that whines louder than a straight cut gearbox!
@@Darndiddlyarn mine does but only when the lights go out 😉
If you feed your mother in law 6 taco bells a day she can sound like that.
I worked 22 years at the Redford plant, to go to engine test and see them run was amazing. Full bore from the start, if it broke let it break here was the motto, quality was stressed at every level. The EPA killed the 2-stroke, it was to dirty for them.
Yeah its a shame, i doubt they are much dirtier then new engines anyways
@@1986Honda4trax new engines are probably at least 3 times dirter than the old 2-stroke engines
Achates Power are looking to bring the 2-stroke Diesel back via the opposed-piston architecture. They aim to demolish the two-stroke Diesel's bad reputation by making it hyper-efficient and get oil consumption to basically the same as a 4-stroke.
They're looking at a 3-cylinder version right now, but I really want to see V6, V8, and V12 versions come out someday. If EMD (which Caterpillar own through Progress rail) could embrace this architecture (as they've been making 2-stroke Diesels since 1938), then that could mean Caterpillar (indirectly) getting back into trucks. Then we could hear those two-stroke Detroit sounds again! Imagine a modern opposed piston 12V92 that sounds just like the old Detroits but is truly clean (and I mean actually clean combustion, not "it has EGR and a DPF so it appears clean").
I'm really hoping they live up to their promises, but only time will tell.
@@JuliaCV9 You can google the numbers. A 2stroker produces over 5 times the amount of hydrocarbons and also makes less power and fuel economy per liter. They were incredible for their time but they have been rightfully succeeded by much better engines. Even DDC themselves said this in their 1999 newsletter...
@@DemoFly You sure that's 2-stroke Diesel, and not a 2-stroke gas engine? I wonder what the emissions from a modern EMD 710 are in comparison to a modern 4-stroke of similar size (like the Fairbanks-Morse built Alco 251 engines).
Something I can fall asleep to. As much as I like Cummins and Caterpillar, Detroit comes out on top when it comes to engines like the 12V71, a sound that you can't forget, and a true original. It's a shame they don't make them like they used to, I'd love to go back in time and see these when they were in their heyday.
the engine sound that made me fall asleep (multiple times) was the old CAT 3126 engine that was in the bus I rode throught elementary school. damn I love the sound that engine makes.
@@JuliaCV9 Yep. Novi Schools in Michigan, where I went, had lots of old 7L Cat powered Thomas SafTLiner FS65's until 2013 until they replaced them with 6.7 Cummins powered Blue Bird Visions. I will always remember what they sounded like.
It appears that many of Novi's Thomas buses have gone to a day camp called Willoway, who also seem to own a lot of ex-Farmington buses.
god bless the outlaws that rock-n-rolled up and down the highways like that back in the day!
You all would have loved the 12V71TT we got from the military. 600HP war power rating for 24 hours straight. Way larger injectors than the N65 injectors we ran in out 12V71s in our building. 108db at 1800 rpm inside the building with 6" twin exhaust outside.
gravelydon Detroits were used in Military Vehicles also.The 6V-53 was used in the M113 at 400 HP after they got rid of the 388 Chrysler they use to have.And then the 15 Ton Trucks like the M911 CHET,M1070 HET,M977-M985 HEMTT,M1075 PLS,MKR-16,and MK-48 all had the 8V-92 at 500 HP before they were given Caterpillars.
I don't know about you two but my 6v71 wrecker was boosted up around 800hp with a big old turbo. Sadly I was the last guy in the Marine corps to it before they replaced it in 98. Rest in peace wrecker 110
What injectors were in them?
There's a gear in there somewhere... Keep digging! Still love that ole 2 cycle scream
These old Detroit two-strokes are the reason a lot of our granddad's were half-way deaf.
those 2 strokes diesel never fail to make me smile, thanks for sharing. All we get today are 4 strokes, more power at the detriment of fun
The sound of the 70's. My mother knows nothing about trucks but I watched this video near her while visiting, and she said "that sounds like an old truck!" Upon questioning, that specific exhaust note is pretty much seared into her mind as she grew up near a truck route in Winnipeg, Manitoba in the early 70's. She didn't know it was called a Detroit, but she knew what it was nonetheless!
hey now they're all great engines but there is one fact i will say, 2 stroke Detroit has had the longest life span out of all engines, they've been around since the 30s i think and some of them are still used for military if i'm correct so thats at least 70 years of service. They are the most reliable and they will tell one hell of a beating
The original in-line 71 series went into production in 1938. V-blocks were introduced in 1957. They were bulletproof.
@@davidtimms3201 318 Detroit, best all around engine ever built!
@@electric7487 pop had a 1974 K100, 318 Detroit. Perfect for hauling furniture(bed bug).
@@allan9603 I like my strokers, but the 855 Cummins was the best all arounder. Cheaper than a Cat, torquier than a Detroit and were killers with the right pump set up.
They don't sound like this but hey, whatcha gonna do.
Damn that sounds and straight off the manifolds. The Jake on roots blower Detroit's sounds beautiful.
The hardest part about learning to drive truck, for me, was going from a tractor with a Cummins, to a tractor with a Detroit. After driving the Detroit, I tended to rush shift's with the Cummins. I had to learn to shift slower with the Cummins cuz it lost rpm slower than the Detroit. This would have been back in the 60s and 70s driving my dad's truck's. Well done bud!
Those old school Detroit motors were just...too cool for school :) Too bad they "don't make 'em like they used to." I know the modern four strokes are more fuel efficient, but doubling the power strokes per RPM gives us more....smiles per gallon :)
What a beautiful sounding machine!
You gotta love the sound of those 2 stroke Detroit's!
The buzzin dozen
Man that old truck sounds good. Gotta love the old buzzin dozen Detroit's.
Good Grief those Detroit's sound beautiful, I collect Military trucks and have mostly Cummins with one CAT thrown in, thats in a Navy snow plow OshKosh truck. I just bought an OshKosh M977 HEMTT 8 wheel drive cargo truck with a small load handling crane on the back, its running an 8V92, I look forward to hearing a lot more of this music!!!
My fire departments pumpers have Detroit's, 8v92ta with Jake 500 hp silver and a 6v92ta 450 hp silver with Jake straight piped. I love NTC 855's but damn them Detroit's and 3406s sound great. The NTC 855's sound similar to the 60 series with the Jake and turbo. Or old ladder truck had an 855 NTF 365 and t906b 5 speed. Not a bad thing. Them military vehicles are fun to play with and work on.
The old M809 and M939 5 Ton Trucks all had Cummins.I have a fleet of them.The 809 and early 939 had the NHC-250 until the later M939 had the 6CTA.Then the M35A3 has that 290 HP 3116 Caterpillar which is overall better than the Multi-Fuel in the M35A2.Caterpillar even use to build Goers that had D333 Cats' in them for the Army,huge 27,000 lbs Carriers.I've been around a lot of the Oshkosh Trucks.I adore the 6NZ in the HEMTT and C18 in the HET making 575-800 HP,but the 8V-92 could still get the job done.
Good ol detroit. Loves to be wound up tight. Sounds great.
that's the perfect truck for me I cant half hear im 70 love that sound drove a Detroit for a while
Luv the sound of that big screamin Jimmy! It’s music to my ears! Thanks for sharing that with us!
I've owned a bunch of hondas and I love this sound. Gives me chills
Love your comment man I used to drive them at the CNR railway back in the years and they were prized by the drivers because of the power. they would play with a trailer train with 80,000 payload and yes the sound (music) but 3 to 4 miles to the gallon when they wore out they bought better machines but with much less power wow I miss that sound though!!
well thanks for taking me for a ride in it. i love these kinds of videos.
2 stroke diesel got to love it.
cant find them, grind them ol boy.....nice vid
The jake coming on sounds beautiful.
great vid man that sound gives me goose bumps. my stepdad drove an old gmc with the same engine in it pulling a milk tanker. i was about 11 I would be up before him on sturday morning ready to go.
love this sound i want 79 GMC detroit diesel myslef for recrearional use just to drive around no hauling with it
@caterpillarnut Well... When the guy drove this to the truck show about 60 miles away from here (I think?) They had to wear earmuffs with a load on. I heard it with a load on passing by with straight pipes, it was almost deafening from outside!
The 12v71 2 stroke had great power. Its sounds like a sports car.
Love the old stuff!!
You got that right LOL. dad drove a 318 detroit that had no muffler and at 2400 rpms it was firewalled at 57 mph. His ears were still ringing the next morning when he had to drive it again.
I've seen a 359 Pete with that same type of engine. All I remember is that the tractor was dark green, had aluminum wheels up front, spider spokes for the rear tandem but didn't have jakebrake. The truck was a tractor trailer dump hauling demolition. But he drove very fast on the hills loaded!! I like the way that jake brake sounds on that 12V-71N!!!
We had a 1967 IH conventional day cab tractor with a fuller 18 speed road ranger in it, and a 238 Detroit. It was used to pull heavy equipment, D8 Cats, That thing would bell-er out when it was running. I am sure she was a riding truck, I never drove it but it was very loud! When my dad sold the cats, he started hauling grain with the truck.
Love them 2 strokes, the sound is awesome
This guy's neighbors must really love him! LOL!
best thing for my alarm clock. :D. I had trained in one of these it brings back many memories. passed pretty much anything but a fuel depot. GOD bless the buzzin dozen Eh?
I was already thinking about doing so, but this has most definitely made up my mind about straight piping my 6-71N in our old Bruin we use to haul tractors (Ag) with. Sounds awesome!
That is one of the bestest trucks ive ever heard.!!!! keep up the good stuff
this truck sounds awesome...especially when the jake brake comes on
Cool Video,brought back some old memories! I saw your overspeed lite on the Tachograph come on,you got her turned up pretty good? Man the last truck I drove that had one of those was in 1976.It was an old Safeway Stores truck from El paso,1964 Freightliner.I watched the Speedograph turn over 1,00,000 miles,something that not a whole lot of people can say they have seen!We used to have to put these paper discs in them,and turn em' in with the paper work.Theyd see what your doin' to their trucks.
Thanx! 12s sound like a big 238. Nothing better sounding than straight piped 318.
you best sounding Detroit on RUclips that think fricken screams like a moanin girl that's a beast truck right there man even though u said that it all torn up and stuff u should keep it that loud man 😎😎👍👍
If heaven has trucks, they will be powered by Detroit V-12s
Aaah a '75...Year I was born :)
Terrific rig man!
used to heavy haul with a 74' Pete 359 that formerly had a buzzin dozen under the hood (a long one at that!) but was big cam cummins powered, still a cool flat dash to drive!
i love a Detriot Diesel . Music to my ears , cheers Hotrodx199
A straight piped 12V71 buzzin dozen with jakes. Loud!!! This is what a truck should sound like.
that is a prime example of why those detroits are called screamin demons. sweet soundin truck man
That is one good sounding truck ! I haul pulpwood with a 1980 white with a straight piped 8v92 detroit everyday , wouldnt take nothing for it !
We got this for the same price, it was a heck of a deal. Since the body was very straight on it, we decided we were going to restore it and make it look nice. We got some 5 hole aluminum wheels to put on the steer axle.
man there is nothin like the sound of a buzzin dozen on a long pull up a hill
I worked for a guy who ran a rock quarry and his big KW dumptruck had a 12V71 and it made an absolutely wonderful sound when climbing up the hill out of the quarry
absolutely love detroit sound wish I had one
I've got a 1984 S10 pickup that I did a diesel conversion on but i used a Cummins 4BT turbo diesel it is nice ,,,but I would love to have a 353 or 453 instead
Sounds like you're overtaking Niki Lauda at the Nurburgring, but it's still going the speed limit.
Damn that truck is fuggin loud!
0:44 TRUCK IS SO LOUD THAT IT LAGGED!!
*listening through headphones*.........im tickled right now!!
We have the technology to make them EPA-Approved but they don't want to spend the money on making a Leaktroit Diesel fitted with DPFs and other things, it wouldn't be the same monster and they would all be known for being pieces of shits because they would be in the shop all the time with faulty computers.
It is.I left you a comment on the other video of it at the drag strip and that rear axle is bent for sure.You can see it on the takeoff.But it does burn the tires really well!
I just love the sound of them Jimmys at work...
how Im glad to see the 12 cylinder detroit running strong... ty
I can also tell by the sound of it - kinda raggedy that the racks are not set right - it needs a tuneup - it should be sharp and crispy sort of rattle and smooth ..... probably the pins are worn out on the rack mechanism... that was a common problem with detroit back then. One thing about a Detroit was that if you run it up fast and keep a good tuneup on it - it would last forever ....
That truck is a survivor-my home backs up to US-26 on the way to Mt hood and I normally dislike the road noise unless its a Detroit- then its all good! but up here there are not a lot of detroits left :(
Awesome video and awesome truck!
Barely any wind noise too!
I've been told that they really only offer the naturally aspirated model in trucks. Most of them at least.
Luv it nothing else compares to a 2 stroke Detroit music
@maxhauler I do not know but the freighliner I used to drive had 12v71 topped out about 57 mph and only got 4 mpg, but when it came to pulling 100,000lbs up it hill it flat walked! when it got down to 1550rpm.
I can't remember what injectors it had before it was torn apart, but it was definitely not stock, and it was adjusted so it would firewall at 2600 rpms, so it did 68 mph instead of 55 with 5:29 gear ratio.
What an amassing machine... very sweet!
Our freightliner has 5:29 rear ends and it has a direct 5 speed main box and a OD 4 speed brownie it would probably do about 55-60. Not sure just guessing, once we get a speedo cable i could tell you how fast it goes!
DUDE, i'm a CAT wrench and this gave meee wood. never actually heard a 2 stroke jaking---nice! thanks.
grindin thru th gears we go. searchin all th way. you better lookout and stay th hell outta our way
At my docters office I see this older guy who always tells me stories of when he use to build these motors when he was around my age 23 to when he was near 50, said those v12s were so damn loud they'd be shaking the whole building just at idle
Beautiful old Pete.
Remember it when it was on truckpaper, right bank smoked, 11 large and some change, glad I didn't have the funds to get it. The gearing would have killed me on the way back to Wisconsin.
ahh god i love the sound of those, nice shift light
You don't see these every day of the week Kerby, it's a good contender for the exhaust note challenge!
Damn these engines sound great
It's already set at 525-570hp with N90 injectors in it without a turbo along with it turning 2600 rpms. It was orginally going to get 140 injectors in it from what i heard.
Absolutey AWESOME!! I think this is the truck I saw on ebay awhile back- heavy duty suspension, double frame?? that's why the rears are so low-this truck was built for special duty
Hi HotRod man. i'm enjoying the video of the Peterbilt. Love the sound of that engine as it works. I'm in truck driving school tryin to be a truck driver as we speak :)
That would be too low geared for these old 2 stroke detroits. There peak torque is at very high rpms so you want to keep em at high rpms. 4:11 would work out, even 4:56's would help.
A loud jake.
A quality of detroit.
@realvanman1 yeah it was fired walled in overdrive. When the governor was adjusted to turn 2600 rpms it would do about 68. I would still rather put different axles on because i wouldnt want to be pulling at 2400 rpms..
@Darkmatter2134 the 12v71 came out of factory as a v12 they were a single block, the 16v71 and 24v71 were joined blocks. and appears that 12v92 is a joined block as previously statedGMC made a gas v12 that was 2 v6 blocks bolted together
@frenchelectrican I would love to find a 3-53 or 2-71 15kw genset for my home emergency backup power but most of the old military units were scrapped around here
12-71 Detroit alarm clock, time to wake up neighbors!
It sounds like a V8 I6 and V12 all at the same time HOW?
cq92larry The way to keep them from leaking was to run a Walker Airsep unit on them. An engine with the crankcase under a slight vacuum does not leak with tight gaskets. Except for the crankshaft, the cam shafts, and the governor. :-D
Loud pipes save lives.
I 've driven trucks with them 2 strokers, always love the sound of them. Just wish the gears were higher like a 411-390 ratio so I could keep up with hyway traffic at 70-75mph. Instead of 488's at 50mph.
Amazing engine good Lord. Looks like a nice cruise too
As a child, I would lie in my bed on a summer night, windows open, katydids chirping, listening to the truckers in their Detroit powered rigs, gearing down, going up the hill out of Springfield Tenneessee on US Hwy 41 North. I wish I could go back to that time, and drift off to sleep, not a worry or care in the world. Just a little boy in his bed, listening to the most beautiful sound ever created on God's earth, as he slipped off to sleep
well all i can say for this is its one nice truck that and i like Detroits 1 because of there sound and 2 there were i think at one time a very popular Engine
The truck is pretty straight and clean. I thought it was cool.
This is so sick bro awsome video!!😎😎
old Detroit diesels were 2 stroke, therefore they needed a blower for correct scavenging because of the very short cylinder fill time/exhaust time=volumetric efficiency. blower has marginal boost if any under most operating on these engines. turbo charging them gave them the real ponies from boost. fed sequentially to through the blower. thus the silver series Detroit.
The only thing better than a 671... is two 671's glued together! Great sound! I've got footage of a '54 GMC Cannonball with some pretty good 671 audio. I'll post it soon.
I only watched a bit , didn't understand the shifts . Came back and checked again . Non turbo ... I missed that the first time . Now I understand why shifts are early .
Love the sound of the old Detroit Diesels & Personally I own a 7.3 Powerstroke & hate cummins