pre-VORTEC

[Batmobile_Turbo]

this person i know used to have a 1952 Dodge one-tonn that had a six cylender tank engine in it, he told me and my dad how he had a variable carberater system that he specially made. I don't know very much about the technical aspects about cars, and if the carberater is linked to the timing, so he might have done other things to it, but he said that his engine worked extremely similar to the V-tec and VORTEC engines that are considered so high tech today, in a 1952 Dodge truck!

[Matra et Alpine]

this person i know used to have a 1952 Dodge one-tonn that had a six cylender tank engine in it, he told me and my dad how he had a variable carberater system that he specially made. I don't know very much about the technical aspects about cars, and if the carberater is linked to the timing, so he might have done other things to it, but he said that his engine worked extremely similar to the V-tec and VORTEC engines that are considered so high tech today, in a 1952 Dodge truck!

Don't know about VORTEC but V-TEC ivaries the valve timing. Fuel injection engine managemenet is the equivalent of what the person had done.

[Doza]

Don't know about VORTEC but V-TEC ivaries the valve timing. Fuel injection engine managemenet is the equivalent of what the person had done.

Yeah, Vortec is not V-TEC.

Vortec creates a vortex within the combustion chamber which makes for cleaner combustion. http://www.gm.com/automotive/gmpower...bout/index.htm
V-TEC changes positions of the cams to favor either economy or power when appropriate.
http://www.howstuffworks.com/question229.htm

I'm pretty sure the truck had something closer to Vortec, if anything, because chances are, it was OHV, ruling out V-TEC.


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he told me and my dad how he had a variable carberater system that he specially made. I don't know very much about the technical aspects about cars, and if the carberater is linked to the timing,

Every vehicle has a variable carburator/fi system. If your foot is on the floor, you're dropping the most fuel you can, if you're idling, the least, and then inbetween. As for your friend, he's most likely full of it.
The combustion "shape" is usually controlled by the shape of the heads, and your friends engine is not only 6 Cylinder, but also a Dodge, so, he probably can't get aftermarket heads for it. He could craft his own.... if he had really expensive machinery.

[Batmobile_Turbo]

Yeah, Vortec is not V-TEC.

Vortec creates a vortex within the combustion chamber which makes for cleaner combustion. http://www.gm.com/automotive/gmpower...bout/index.htm
V-TEC changes positions of the cams to favor either economy or power when appropriate.
http://www.howstuffworks.com/question229.htm

I'm pretty sure the truck had something closer to Vortec, if anything, because chances are, it was OHV, ruling out V-TEC.


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Every vehicle has a variable carburator/fi system. If your foot is on the floor, you're dropping the most fuel you can, if you're idling, the least, and then inbetween. As for your friend, he's most likely full of it.
The combustion "shape" is usually controlled by the shape of the heads, and your friends engine is not only 6 Cylinder, but also a Dodge, so, he probably can't get aftermarket heads for it. He could craft his own.... if he had really expensive machinery.

first, he had a tank engine in it not a dodge engine. and second, your relying on my vague description of this (i said i don't know much) system to base your opinion. he said that he had a system to favor economy or power when aproporiate, like a V-tec works. I could still be not describing it proporly but the thing is that he had something that worked exactly like V-tec before V-tec was officialy invented. he is not the kind of person that would lie, he is a very trustworthy person. he also did his own experiments with valve timing, next time i see him i will ask him more about what he did.

lastly, if you don't have any positive comments to put on this thread anymore then don't post them.

[Matra et Alpine]

he said that he had a system to favor economy or power when aproporiate, like a V-tec works.

Could be as simple as controlling the second barrel on a twin Weber or D'Ellorto.
These were common on performance cars in the 60s/70s as you get reasonable (!) consumption until you open up that second barrel and then it sucks fuel. Brothers Escort rally car could go from 25mpg down to 5-8mpg !!!

Complex multi-jetted carbs allowed a whole range of options and it's possible he'd played with these.

I think it unlikely he'd changed chamber shape signifacantly as water jacket is usually too close to do much other than light shaping and skimming.

Another possibility is he coudl have played with inlet manifold shape and ported it to try to produce vortexes to optimise droplet mix on entry to the chamber.

Sounds as if you shoudl try to ask him as I'm sure he'd love to have an interest shown in his engineering efforts.

[Batmobile_Turbo]

Sounds as if you shoudl try to ask him as I'm sure he'd love to have an interest shown in his engineering efforts.

yes i will ask him.

[Doza]

first, he had a tank engine in it not a dodge engine. and second, your relying on my vague description of this (i said i don't know much) system to base your opinion. he said that he had a system to favor economy or power when aproporiate, like a V-tec works. I could still be not describing it proporly but the thing is that he had something that worked exactly like V-tec before V-tec was officialy invented. he is not the kind of person that would lie, he is a very trustworthy person. he also did his own experiments with valve timing, next time i see him i will ask him more about what he did.

lastly, if you don't have any positive comments to put on this thread anymore then don't post them.

My fault for running off of something vague. Find out what tank engine it is.

As for viability.... everyone seems to have some make of Skyline on this board, even myself, so any type of variable timing on anything that old is about as easy to believe.

[crash8168]

this person i know used to have a 1952 Dodge one-tonn that had a six cylender tank engine in it, he told me and my dad how he had a variable carberater system that he specially made. I don't know very much about the technical aspects about cars, and if the carberater is linked to the timing, so he might have done other things to it, but he said that his engine worked extremely similar to the V-tec and VORTEC engines that are considered so high tech today, in a 1952 Dodge truck!

he was probably talking about a variable venturi carb, that has nothing in common with vtec or vortec. variable venturi carbs have been around forever on various automobiles.