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What is the "12 valve" of big rig engines?

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Old 07-23-2009, 02:01 PM
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Originally Posted by nevrenufhp
For hot rodding; on the small side a DT466. Big boys, Cummins KTA19(1150), Cat 3406B,C,E, C15, C18, 3408. Just look what they run in the big rig sled pulls.
None of them will touch a v-8 mack

for everyday use it would be the n-14 or 3406 c-15/c-16 cat
Old 07-23-2009, 08:52 PM
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I would have to side with the 3406b cat. We had one with in a 98 pete with a silage trailer that would walk over anything else around with no real mods done to it.

I would also say imho that you cant top a old detroit im talking like a 8v53 or something along those lines. These beast sound awsome know a couple guys still runn the orignals in some bobtail grain trucks
Old 07-24-2009, 03:52 PM
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Originally Posted by 24valvepuller
None of them will touch a v-8 mack

for everyday use it would be the n-14 or 3406 c-15/c-16 cat
You got me there, I forgot the poor ol Mack V8 (E9). I saw a couple on youtube that are jaw dropping.
As far as NONE touching the Mack, well...that's a pretty bold statement, and I'm sure it can be done.
Old 07-28-2009, 03:31 PM
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The big rig truck pull circuit in pulling country is dominated by the v-8 mack, J.R. Collins, Fred Sanders, and Dick Bonner
Old 07-30-2009, 03:07 PM
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anyone have any opinions about the old 2-stroke detroits??? I know some of them can make some decent power. 12v-71 tt or 12v-91 tt????
Old 07-30-2009, 03:38 PM
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Originally Posted by war machine
anyone have any opinions about the old 2-stroke detroits??? I know some of them can make some decent power. 12v-71 tt or 12v-91 tt????
I think the requirement of "bulletproof" rules them out. Lose a blower seal and you'd better run. haha Think they're loud turning diesel into noise, what about engine oil?
Old 07-30-2009, 04:20 PM
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I know them old detroits are by far not bullet proof but you just cant beat the way they sound. The old "screaming detroit" is unmistakeable.
Old 07-30-2009, 06:09 PM
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yeah true, I once heard somone say: if youre detroit is not leaking, pull over and see whats wrong.

no they may not be all that reliable, but you cant beat that unique sound.
Old 07-30-2009, 06:23 PM
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im looking for a old truck with a detroit in it right now. im looking for something with either a 6v92 or a 8v92.
Old 07-30-2009, 09:03 PM
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DT466 on the small end, 3406B to play with in the big rigs, 8V92 for the sound, and the KTTA 1150 Cummins for all-out badass-ery. 1,150 cubic inches, twin turbo, intercooled, 750 hp stock! There's only a handfull of trucks with this motor shoehorned in, but it is doable.

On another note, an old 855ci(NT) Cummins sounds pretty wild at 2,800 rpm in a semi, especially under load. It was in an 86 Freightliner, with a 9 speed, at my old driving job. All the boss would ever tell me is he turned it up when it got an inframe at 1.2 million miles.
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