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Joined: May 2008
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From: Bald Knob AR
The reason they sound like they are turning so fast is because they are two strokes. That means they fire everytime the piston comes up. So each piston fires every revolution instead of every second revolution like a four stroke. In other words they are firing twice as many times as a four stroke which makes em sound like they are turning twice as fast when in reality they are not.
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From: Terre Haute, IN
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Postmaster
Joined: Jun 2008
Posts: 2,500
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From: Michigan
i know ive posted this video before, but i never get tired of it lol
YouTube - International Detroit Diesel 12v71TT sled pull wheelie
YouTube - International Detroit Diesel 12v71TT sled pull wheelie
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Lead Driver
Joined: Nov 2003
Posts: 6,900
Likes: 3
From: Campbell River, B.C.
Two things I remember Dave saying about the detroits.
1) Anything under 1800 RPM and you are wasting your time,
2) Before getting in, you have to slam the door on your fingers or you will not be able to drive it
1) Anything under 1800 RPM and you are wasting your time,
2) Before getting in, you have to slam the door on your fingers or you will not be able to drive it
Methanoholic
Joined: Mar 2009
Posts: 6,442
Likes: 8
From: Maine (NorCal Native)
The reason they sound like they are turning so fast is because they are two strokes. That means they fire everytime the piston comes up. So each piston fires every revolution instead of every second revolution like a four stroke. In other words they are firing twice as many times as a four stroke which makes em sound like they are turning twice as fast when in reality they are not.
But yea, The do scream pretty awesome!
And I like them even better when they belong to someone else and I don't have to work on them!
-Enjoy
fh : )_~
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Postmaster
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From: Michigan
Makes me look smart lol
Lead Driver
Joined: Nov 2003
Posts: 6,900
Likes: 3
From: Campbell River, B.C.
I saw an old bus that was converted to an RV and I'm pretty sure it had a detroit in it. I could hear it when passing him. The dark grey haze from the smoke was visible from about 1 mile away looking ahead down the freeway where the bus was near the top of the next hill.
After seeing a few videos online and comparing that to the bus I saw in the flesh struggling to hold speed I have to wonder if detroits are even capable of running without significant amounts of visible smoke. I don't want to stop anyone from having a little fun and maybe even doing a repower if thats what they are after, but my IDI gets great fuel economy, idles completely smoke free (even in direct sunlight), Cruises smoke free, still has enough power to get out of its own way, and I don't suffer any hearing damage when cruising on longer trips.
Doesn't leak a drop of anything either.
I'm trying to figure out what the big deal is over these old buzzers.
After seeing a few videos online and comparing that to the bus I saw in the flesh struggling to hold speed I have to wonder if detroits are even capable of running without significant amounts of visible smoke. I don't want to stop anyone from having a little fun and maybe even doing a repower if thats what they are after, but my IDI gets great fuel economy, idles completely smoke free (even in direct sunlight), Cruises smoke free, still has enough power to get out of its own way, and I don't suffer any hearing damage when cruising on longer trips.
Doesn't leak a drop of anything either.
I'm trying to figure out what the big deal is over these old buzzers.
Methanoholic
Joined: Mar 2009
Posts: 6,442
Likes: 8
From: Maine (NorCal Native)
I dunno know, I cannot answer that ... I guess some peeps just like to support BP's motor oil production ... 
However maybe that was my pops in the bus, he has a 1961 Bluebird conversion with a 8v92 stuffed in it!
He does make an annual trip up there ... His mom is buried in B.C.
-Enjoy
fh : )_~
However maybe that was my pops in the bus, he has a 1961 Bluebird conversion with a 8v92 stuffed in it!
He does make an annual trip up there ... His mom is buried in B.C.
-Enjoy
fh : )_~