Detroit 6V53 with Whipple supercharger first test fire of NOS military create motor 

Detroit’s sound cooler, but when it comes to having balls, and reliability CAT, and Cummins are by far more superior .

dave0z96 either way id take any detroit over any other diesel

@@dave0z96 2 stroke Detroits are reliable as hell

@@jdlawless_fuel1416 Not like Cats and Cummins . I worked for Dyer Construction in Indiana and we had them in the Terex bowl scrapers they were always breaking and low on power, the up time on the Cats were far better . The fuel economy was bad as well . Back in the day they were always the cheaper alternative to Cat, and Cummins for a reason . They aren't a bad product, but compared to their competition they weren't as good .

@@dave0z96 everyone I've been around has power and reliability for days, but they were always maintained well.

I'd say it'd look better with a 47 year 'abandoned in the woods' patina on it, but yanno.

Kwantwz hp??

Your stupid. All you can do is put this down. This engine is over your experience level. Grow up and shut up little girl

Whipple superchargers are objectively better than roots blowers. They are more efficient at higher rpms and introduce less heat into the intake air than a roots which reduces air density in the cylinders. They also compress the air as well, thus generating a actual boost in air density versus what the normal roots blower would do. This is not only a way to increase HP but fuel economy and torque output by better using the energy it removes from the crankshaft. Roots blowers are pre-civil war technology. Even the Nazis used Whipple superchargers for their submarine engines versus a normal roots blower. The only drawback to a Whipple supercharger is the cost.

A MOTORCYCLE CHAIN? LMAO..GOT DAM !! THAT SHIT WOULD COME OFF AND SAW THE VEHICLES FRONT END OFF

Good thing since they don't last long.

Kwantwz hp??

tcorris right, the stock blower had to be about the same but quieter, I wouldnt want to hear that all day, to each his own I guess, now the silver series TA’s those were badass

Waiting on you to host the next "Confab" . I've attended and showed my creation since1980 .

deegan727 parasitic lost, the roots style is very inefficient, while a twin screw can built pressure while consuming less power. If you add turbos it will multiply the effectiveness much more than the old style roots.

@@B0RN2RACE100 But a Detroit 2 stroke will not run without it's blower. So either way you have to have it.

jarrad mcdaniel Did you even read what I said? The twin screw is a positive displacement blower just like the roots, it’s just a lot more efficient, the only problem in this set up is, since it’s a non turbo version the cam is set up to let all the extra boost out to reduce back pressure on the roots blower, it it was a turbo motor, the cam is set up the reduce the exhaust over last by a couple of degrees allowing the intake ports to be open while the exhaust valves close sooner.

@@B0RN2RACE100 Apologies just now seeing this after a year. Yes I know about the tutbo sett up. Hunt down blower with bypass cams are the same according to the Detroit book I have timing is a bit different Different pistons for compression ratio. But the old blower would definitely be more reliable. it is his build regaurdless. But the 4.0 blower is to small for the engine the engine is a 318 ci or 5.2 liter. The Detroit would never see boost It would actually hurt the performance . And I've done found out a 71 series won't fit. So yes turbo charging would be the only viable option or larger injectors Like a n65 brown tag. Max size you can go without a turbo. Civilian 6v53s came out with n or s 45 injectors. Most put n55 red tags in them for extra power. And if you wanted to go bigger than that a throttle retarder was definitely recommended as to not melt down cylinders and use a good pyrometer. Detroit nut here.

jarrad mcdaniel cool info. I’m more of a cat fan, never drove a 2 stroke Detroit but I wanted too. The 12.7 seemed weak down low. If you say the 4.0 twin screw is not big enough I believe you. On paper it seemed to flow enough CFMs

MrJIMMYJIMMERSON give me a call would like to chat with you....519.901.0756

I'm thinking it may sound better in the flesh... or metal in this case. I'm just making that assumption based on the potato camera so I can only assume the microphone is not stellar either

huckster78 it has 217hp Grampa is gunna turbo charge it soon

Military surplus yard. They come out of M551s

These were special for the military and were run in small batches. They had leak problems through the castings and were hand worked to fix them. They truly were special, hand built really, and each step was watched by a government inspector. They were run in in a special test area and were certified as to the HP and torque, truly the best the shop could produce.

Before you find the engine, you better find yourself about $13,000

+HAPKAH ya my father used to rebuild them. he said it was only when they were really tired and crank case oil would seep past the rings or the injector plate was stuck open from wear

+HAPKAH ya my father used to rebuild them. he said it was only when they were really tired and crank case oil would seep past the rings or the injector plate was stuck open from wear

One injector hangs open the rest follow

Leaky turbos will run any of them away. When it burns all the oil out it will soon quit. Detroits may have that wrap cause they would actually run long enough to get to the Run Away point of disrepair. I agree with another comment. The motor sounds like shit now, that whipple aint right for it and the drive system he was bragging about.( strait off a vortec) lasted about 30 seconds and wont ever last. Try again, different aint always better.

Easy enough to deal with, just choke the air off. The secret to preventing the runaway is to have the rack properly set, that is usually what causes it.

As far as I knew, the DD blowers are just used to scavenge the exhaust out. Their default state is blown otherwise they don't really work. But you're right, to actually give the engine power you need to turbo it or, better, twin-turbo it :)

+vtr0104 Ive always thought you could maybe do some exhaust valve timing so they close earlier so there will be a small period of time where the exhaust valve is closed but air is still being pushed into the cylinders. Idk it might work

Would a compound turbo give it a little low end torque?

Doesn't have exhaust valves just scavenger ports in the middle of the cylinder walls.

Bobby Lane they have intake ports in the cylinder walls and exhaust valves in the head.

Hi Tim, Don't get on here much - so busy at my shop. My friend who owns the truck is a Detroit 2 stroke guy. Give me a ring at 519 369 1003 and I'll hook you up. He has lots of that stuff.

Void33 - if they had the air cleaner on it, it wouldn't be so Whiny.