275 Supercharged iron lung cummins on high idle.

[Cheengowah]

I love that offset rear window.

[brucew44guns]

@351441. I drove many 262's back in the 70's. They were all 220's, with the 42 horsepower Air Research Turbo added on to them. They would---in many cases, hang in well with a stock 335 Cummins, which was the big gun at the time. A good 262 in a KW, 2-- 4 speeds or a 5 and 3 speed, and you got right on down the road. But the sound of a 275 has not been outdone.

[MrPoet67]

How old is the old truck?. looks good for it's age

[zeekdavis11]

AHHH Shit havent seen one of these since i was a kid

[ghettobird2012]

I'm not into these type of vehicles but I'm glad you guys put these up. I want to know more about them. I have one question tho. Why do people supercharge these things?

[brucew44guns]

The old 275 was a real hot engine in it's day. Cummins had made quite a leap up to attain the 275 horsepower. Bear in mind that there were still countless 150's and even more 200's still running every day, so to have a 2-- "6 bits" as they were called, with that wonderful back-drop exhaust manifold, you were king of the hill. These old KW's looked pretty good back then, all painted up, and clean, with a 275.

[The351441]

@brucew44guns the iron lung cummins were built up to 335 hp. about the same time, cummins started offering the turbo on the 743 in. motors, this was the 262 Cummins.

[salukispeed93]

id drive that to school

[yosk8er45]

thing sounds like my dad snoring

[Hotrodx199]

@yosk8er45 your dad might need to go to the hospital and get check then

[Capps99]

Cabover with a big boner

[Rainmanxxl1967]

If the intake system is causing the high idle it must urgently be sealed as these old engines are made for a much lower RPM. But must admit that it is a nice truck anyway

[djkillcrazy]

Actually the design sort of pre-dated the flat nosed cabover. Dunno about in the case of this one, but I've heard other models referred to as bubble-noses, albeit with less pronounced "noses".

[gdb602Brown]

On the SPEED CHANNEL A show called American Trucker showed a nice bull nose in red

The owner is a independent

[nick081980]

it's an old truck

[hatuli77]

How many cylinders?

[juancarrillo001]

how much do one of these go for?



[2253benjamin]

why would more air cause a high idle?

[frackcha]

@2253benjamin as i understand it... air is one of the components of the fire triangle: more air - more fire, more fire - bigger explosion, bigger explosion - higher revs... (im no mechanic tho)

[2253benjamin]

@frackcha In a diesel more air doesnt mean higher rpm like a gas engine more fuel means more rpm

[djkillcrazy]

@2253benjamin More air = more potential for combustion. In diesels, without more fuel, it's limited to more complete combustion of the fuel supplied. This can make more power and move the pistons faster, making more RPM.

However, why do you think this is a case of more air being supplied? A leak in the intake might mess up the vacuum into the combustion chambers, supplying less air and making it run rich, which would make the engine have to turn faster to suck in enough air to keep running.

[2253benjamin]

@djkillcrazy theres no vacuum in a diesel.the only way a diesel speeds up is iff you add fuel.theres no lean rich anything in a diesel.Richer=faster rpm leaner slows them down.

[The351441]

@djkillcrazy the engine in this truck utilized the cummins pt fuel system. 2 things will make this engine run fast at an idle. 1, there might be a suction leak in the fuel system between the fuel tank and the fuel pump Air in the fuel will cause the older cummins to idle fast,and also to hang up in the rpm in between gears during a gear change. 2, it could be caused by the linkage between the fuel pedal and the pump itself. If it's adjusted to tight,or bound up in some way,it causes fast idle

[djkillcrazy]

Mostly. Although the effect is nowhere near as drastic in diesels.

[myamericanpie]

ugly on the outside beauty on the inside

[Dranwe]

Good ol' truck engines! No turbo shit ruining the sound, 

[blown4six]

@Dranwe But those turbo shits make good power.

[Hotrodx199]

@brianszoo 4

[bigdaddymatty17]

Does this truck have a turbo on it?

[Hotrodx199]

@bigdaddymatty17 No sir it doesnt not have a turbo, that's why it sounds so good!

[anovasinn]

I see now all old rigs were made by satan himself

[TrainboyRR]

I like the truck and hows the air horns sound.

[anvilsring]

Cool truck- sort of reminds me of the ABC warrior robot from the movie Judge Dredd.

[raginroadrunner]

Should be a 300hp 5 1/8th bore..old KW Bubble nose...extremely hard to work on..the cab did not tilt...

[bud6782009]

goofy lookin son of a bitch aint it

[6speedin]

it looks like a train with the other 40 foot missing lol, bad ass tho

[MrRuffnready5]

what a neat ol' truck!

[bgpmp16]

man cabovers suck. they suck to work on look like shit and are allways poorly maintained. on that note most cabover drivers are douches because they think they are the coolest rod on the road. i fix them everyday and i hate them so much only good part is i can pull the tranny in less than fifteen minutes

[kdraper2007]

@bgpmp16 HUH? coolest rod on the road? I never felt that when I drove Cabover. mainly what I felt was pain. the ride killed my back. Where are you that there are enough Cabovers still in service that you fix them everyday? I would'nt mind having an old 60's model cabover for a show truck, but for working I'll stick to my conventional.

[donburdick]

That may be rough.But I'll tell you I'd love to take that home!

[MrMrcrain]

rare to find bull nose kw last i have seen any of these for trucks were in alabama on the side of the road for sale there were 4 or 5 of them for sale

[grangeroo]

Jeepers creepers monster guy from the movie would like this truck

[transferman98]

does anyone know where I can get the hood emblem for a '48 bullnose? Someone stole the one off ours last week. :(

[50fordman]

these old iron lung cummins scare me

[bionictrucker1]

My dad drove an ole bullnose Kenworth hauling hay & cattle back in his day.

[AcaAllertor127]

There is an old freightliner cabover near me for sale and i want it soooooooo bad!!!

[cumminsVScompetition]

love that truck!!!!

[mrclean73]

So what are the chances of KW ever reproducing a classic like this one ever again?

[Hotrodx199]

@mrclean73 Probably never again. It's not very aerodynamic. Today it's all about fuel economy and emissions, which both the truck and the motor cannot accomplish in today's standards. You could probably get the motor emissions legal with the technology we have, but the truck will definitely be a no.

[killthebums]

@mrclean73 not very much sigh

[raginroadrunner]

@mrclean73 ...with a litle luck..'NEVER"...the truck was a piece of shit...

[SeaDollarsBertram]

a buddy of mine told me that the iron lung Cummins got its name from the compression release it has. is that true?

[Hotrodx199]

@SeaDollarsBertram It got its name from the supercharger.

[MultiMonster69]

would you consider that a cabover an what year is that thing

[bradschillin]

They make a kit to supercharge the new chevy/gmc duramax diesel engines. I forget who makes them, but I saw it about a year ago.

[nwow2866]

Nice to see a classic truck with the classic aluminum 10 hole wheels on it.

[haulinMercedesActros]

looks like a train :D

[Howardraz]

Brings back memories, My dad drove a bullnose when they were the most popular truck on the road. Used to ride along.

[wtfmanicanthaveaname]

never seen anything like it, its like a cabover that wants really bad to be a standard!

[MattytheDem]

@wtfmanicanthaveaname but couldn't due to length limits in those days

[wtfmanicanthaveaname]

@MattytheDem didnt even think of that...thanx :)

[RTD8481]

A very ugly but very interesting looking truck.

[jsm121485]

it's too bad more of these aren't preserved, Id love to see more of these old rigs, not on the roads maybe, but at shows and things... for that matter, Canada is a bad place to be to see old trucks I think, I need to go to the heartland of America where trucking was born maybe

[CeladonTruck]

is that a conventional or cab over? what about a conventover!

[wilatemodel]

y dont u fix it?

[volker185]

Saw a video, SUPERCHARGED 220 CUMMINS WITH SPLIT MANIFOLD. Did some company make a dual outlet exhaust manifold for N.A and supercharged engines? Would make it sound like a v6 instead of inline. Someone said Ellis made one, couldn't find it. INFORMATION ANYONE_THANKS.

[Hotrodx199]

I don't think so, i don't think it would quite sound like a v6, i don't know.

[DeserTBoB93535]

@Hotrodx199 It won't sound like a V6 at all. It just sounds like a baby Cummins with big exhaust.

[bioshock26632]

@volker185 what type of truck

[ramirezvk56]

what does iron lung mean

[Hotrodx199]

It's the supercharger. Just imagine the supercharger being lungs except it's made from steel or whatever.

[tgardone]

Awesome looking truck....mean sounding too! They don't make em like that anymore.

[rb25z]

BADASS!!!!!

[jasonslabach0]

what kind of cummins is this? inline 6 or v8? 2 or 4 stroke? thanks

[Hotrodx199]

inline 6 4 stroke supercharged. 743 cubic inches (12.2L)

[azkcr]

supercharged diesel??? that's unheard of nowadays.. literally unheard of..

[Hotrodx199]

Yeah i know! Crazy isn't it?

[85raminator]

it went out with the old 2 stroker detroits, turbos are much more efficient

[azkcr]

They are WAAAAAAY more efficient.. i love turbos.. on a gasser, i'd prefer a supercharger though

[DGillyy]

You had to have the supercharger on the 2 stroke DEEtroit, wouldn't run without it, later on they put a turbo on it, but still had the supercharger too.

[huppypuppy]

The "supercharger" on a Detroit 2 stroke is just a Rootes-style blower used to scavenge the intake air into the cylinder through the liner ports!

[The351441]

@DGillyy on the 92 series detroit diesels, they incorporated a damper on the intake system, allowing the turbo boost to bypass the blower altogether at max turbo boost pressure, because the engine actually got more air that way.

[TurbinePower69]

85raminator......they are, more efficient than positive displacement type blowers...

like the roots....but, mostly because of

Zero parasitic loss in terms of driving it, over a centrifigal or roots type......but,

the roots type can do one thing in spades...that a turbo...cannot do.....and it's the same reason it is so prevelant

among drag racing,  both on land and water....they create BRUTE TORQUE !!

Turbos = hp, but little torque increase.

[85raminator]

Hey you dont need to tell me my man, i work for cummins, on a gasser i would prefer a supercharger but still the most efficient engines diesel or gas all have turbos. And you can get good torque with a turbo, odviously not what a supercharger can provide on the same engine, but at the same time your going to lose top end power, but thankfully on diesels that doesnt really matter, their all about the grunt

[bradschillin]

@azkcr Some company makes a kit to put a supercharger on a turbo GM duramax diesel. I forget who makes it, but i saw it about a year ago

[mcc1327]

@foxriderkx250f what? are you talkin bout modified pullin tractors or like deeres that come from the factory new? im askin cause ive never heard of a factory supercharged engine made by deere i any tractor. jw thanks

[mcc1327]

@foxriderkx250f yea we have 3 JD 9630's (550 hp) which are the largest deere makes that we drill wheat with. I think you mean turbo charger cause ours dont have super charges. Now the older deeres may have them but none of the 2000 to present day have them (that i know of). Im not trying to be a smart ass i was jus giving my 2 cents lol.

[foxriderkx250f]

@mcc1327 you may be right . i like red tractors anyway :P

[mcc1327]

@foxriderkx250f yea the only reason we run deere is cause re-sale, there all plastic and electronic now days...

[foxriderkx250f]

@mcc1327 ya i dont like all the buttons . i like my 966 its got one button .... too start it 

[mcc1327]

@foxriderkx250f yea deere jus needs to go back to makin the good ol 4440's

[whb1965]

@azkcr most all the old detroits where supercharged.. many hot rodders still use that type of supercharger today. turbo is much better and efficient

[6spdISB]

waht kind of truck is that?

[mongo5888]

It's an early 50's "Bullnose" Kenworth. Pretty strong old trucks and they just look plain cool!

[finnishguy75]

Learn somethin every day...,sick truck dude, gotta love that distinctive cummins sound. I thought superchargers were a new performance thing for diesels on the dragstrip, never would have thought they were running them decades ago

[Hotrodx199]

oh yeah these were made back in the 50s i think they stopped using supercharged on cummins in 58 or 59.

[studpuppy69]

They are also on ALL of the two stroke Detroit Diesel's. Search 8v71, 6v92T, 8v92T, 12v71.

[finnishguy75]

what the hell are "iron lungs"?

[Hotrodx199]

what they call a supercharger on these old cummins.

[skylinevq35]

Thats a dam beast man!! Nice

[DieselsAndDiodes]

I would love one of these.

[1pinchipendejo]

I'd love to be able to say, "I drive an Iron Lung"!

[berh307]

Wow Wow and wow not many of the old girls left !!!! Great job!!

[hockeydudeluv]

Nice!!!!!!!!!!! You should throw some 8" pipes on er.......you'd scare everything off of the highway!! Damn thats a nice rig!

[kgoody84]

sounds great, that truck has character.

[squatingdog13]

wow! i have to say that that is the sexiest semi i have ever seen!!!

[Hotrodx199]

You know it!

[TurbinePower69]

Hotrodx......you sure come up with some Great videos......I had the good

fortune to actually drive one of these "beasts" in my early years of trucking back in 1966....in the summer, between my jr. & sr. yr at Tech. Thank

you for the Great memories.....of course, you "know" me from comments on other postings....and to me the Only thing to make this truck  "better"...would be a 12v71 DD with 8" straight pipes set to 2850rpms !

[Hotrodx199]

Why thank you. Yeah i definitely know you from other videos and you do post some great info. A 12v71 would be pretty cool in this, it should make some racket turning that many rpms hehe. The first thing i would do is get a chrome 5" stack. This has a 4" stack which sounds ok but the 5" sounds a little more heavy sounding and not so high pitched.

[DunkinDonuts747]

This truck has mean written all over it man!

I love it... this would be a great truck to see in some kinda terror movie.

It would add such a scarry/creepy factor to the bad guy of any movie!

[portnoypunk]

that truck will be runnin when we are all dead and gone!! haha!!

[Dauntless244]

That's a great looking and sounding truck!

[dueltruck700]

thats a sick truck...sorta creepy lookin

[8laneblacktop]

Back in the '90's a guy run one a truck similar to this one, only it was maroon. It was also restored and ran northern California regularly I think hauling lumber.

It was always parked at the 76 in Redding (Knighton Road).

Anyway, cool video and great truck!

[DougM63]

If i had a nickle for every mile I put on one of them. Cant believe i still got kidneys and a backbone!

[ahgjhghj]

is awesome this truck!!!

the cab is like the cab of a IFA truck(from europe)

[capridrifter]

I wish I had money, i'd by my mom her own truck, an older one with a sleeper on it:) she'd Love that! But the down side is I figure an older truck would cost more in upkeep wouldn't it:(....But there sooooooooooo Cool!

[debstef]

We have a 1958 Mack we call the Time Machine. It's pure silver inside.

[Xx69roadrunnerxX]

Thats sound amazing! Supercharged so it gets enough air right? Their arent any superchargers for diesel engines that are ment for added boost are their..

[Hotrodx199]

Actually these didn't work like the detroit diesels where they are required to have a blower in order to run. i belive these add boost to them. The 250 is an exact same thing as this except it is not supercharged.

[Xx69roadrunnerxX]

Ahh..okay. So some diesel were supercharged before turbos became commonplace then?

[Hotrodx199]

The only diesels that i know were superchagred were the 275/320 cummins. The rest such as 220's and 250's were with no charger. They made turbos for the 220s and 250s but all they really did was clear the smoke, they didn't bring the EGTs down much. the 220 with a turbo was a 262 and a 250 with a turbo was a 280.

[Xx69roadrunnerxX]

Thanks man! When you say 220, 250, 275 Cummins is that the hp for that specific Cummins engine or the code Cummins used for those engine? Also why do commercial diesel engines usually only get their hp openly advertsied and not torque, because its the torque that matters. Ive never gotten a straight answers, thanks!

[Hotrodx199]

Those are in HP. The 220s and 262s were 743 cubic inches and the 250s, 275s and 320s were 855 cubic inches. And im not sure why they mainly advertise horsepower and not torque.

[Xx69roadrunnerxX]

Thanks for sharing!

[Hotrodx199]

actually i was just told this, but the 250 and the 280 were the only 855 cubic inch ones. The 275, 320, and 220 were 743 cubic inches. The 275 and the 320 had blowers on them.

[Xx69roadrunnerxX]

K, thanks!

[Royalhighlander]

When ever a driver refrers to an engine as a Cat 500 or Cummins 750 KT etc we allway refer to the HP rating, Or else thaty will refer to it as a B model CAt or C model etc, but normally when referencing a truck engine its using the horse power rating.. Also as a saide note those dragsters you see with that big blower sitting on top of the engine, well i've driven Older Detriot Diesle engines with that blower set up on it.. It was re designed to work on gas engines for more power in drag racing

[TurbinePower69]

Just so you know.....the roots blowers

that you see on all the Fuel motors in drag racing......other than  being of the roots design...have absolutely nothing in common with the smaller 6 & 8-71 types you see on the gas powered cars...and the Top Alhohol Class motors' blowers have nothing in common with the roots, internally other than [basically] the case...and the output side on the bottom is at the rear.......

[TurbinePower69]

......cont'd, because the Alhohol engines need such huge amounts of air, they've refind the Lysham design to

the point where it can be used on "small" engines.....Lyshams [also known in laymans slang as a "screw"

blower] actually compress the air before exiting the case.....unlike the Roots, which only "moves" air...so "supercharging" is created by putting more air in the manifold than exiting..so "boost" results from backpressure rather than compression.

[TheDieselDr]

100% correct,,

I still want to put a Lysholm on a 5.9Cummins!!!!

there is a video on here somewhere

where a fella used a centrifugal and

of course it ran out of breath at high rpms,

[TurbinePower69]

TheDieselDr......The Lysholm would be

really power adding....especially in the torque dept......and the sound of a Lysholm is  unmistakable. A centrifigal can work.....but, great care needs to be

taken in choosing the right "size" and drive ratio.....same as in turbo matching

A / R ratios to engine displacement and

rpms.....I've seen more homegrown setups that failed because of that....gas

and diesel both...money wasted w / wrong pairings.

[TheDieselDr]

I'm helping SteelKahuna with some tech

support he is trying to put a twin turbo setup on a 3408 and do it all under 2200 RPM,

I'm very familiar with compressor A/R

ratios and turbine sizing..

& it blows my mind that some of these guys think they have to spin a little ISB to

5000+ RPMs

I want to set mine up to be done by 2450 RPM,, and be making boost at idle

I laugh at the people that sit in Drive and get their torque converters god knows how hot to "spool" the turbos,, FOOLS!!

[KapteinOpel]

Im thinking of putting a blower on my 6,2 chevy diesel, I wonder does it need some form of boost regulation or does it just pump full pressure all the time?

[TheDieselDr]

There is a video on here where a guy did it to a 6.5 marine engine.. I'll try and find it and send it to you...

as far as the "boost" goes it's all about the pulley size,, they don't hardly do anything at idle but you may want some sort of limiting device like a BOV..

[TheDieselDr]

and the 6.2's compression is rediculous at 21.5;1, new pistons are sold that bring it to 16.5:1, thats what I would do before I stuck a supercarger on,, the 6.2s were normally aspirated anyway,,,

safest bet would to take a 6.5 that was a turbo motor in the first place because their static compression is lower than the N/A 6.2L although the little turbo wasn't worth much and they weren't intercooled either,,

BTW fellow G.M fan... 7qts of oil isnt enough.. change it earlier than scheduled.

[TurbinePower69]

Hotrodx.....Hello again...just for trivia...there was, in fact a 250 with a two lobed roots (straight cut, not helical) blower on it....it was known as

a Super 250 but its ci displacement was upped to 902ci......ironically, the same ci as the newer ISX Cummins. My dad had one in an Oshkosh that he used for plowing snow with.

[trikmitruk]

Bullnoses Rock.

[Newfieguy89]

This old girl looks like she belongs in a Mad Max movie!! Very Cool!!

[peterbiltexd]

i love them old kennys good soundin truck

[Hotrodx199]

The best sounding cummins out there. Nothing and i mean NOTHING can beat the good ol sound of a supercharged cummins. today's engines they have to offer dont have much engine noise. Some do, but most of them sound like a F-35 taking off because of the turbos they have.

[Dave7060]

Your right there, I like the distinct sounds of the older engines, not the ones where all you hear is the turbo scream

[peterbiltexd]

these trucks sound remotley like a 318 detroit when going throught the gears some of my friends old army trucks have the old 275 cummins with backdrop manifoldes

[Hotrodx199]

They do sound cool.