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Rotaries And Vtech?

Old May 12, 2004 | 11:24 PM
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I just saw a sig that said rotaries invented vtech? Can someone explain it to me, because i always just understood vtech to be a engine with variable valve timing. Since its a "honda" thing i never took time to get into it.



Or is it like how the heads and plugs are designed, like a hemi?
Old May 12, 2004 | 11:39 PM
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They had a 5/6 port actuator, so when you reached a certain RPM the port opened, and you got a kick in power. But with the port closed you still get some low end driveability.



not exactly like vtech but same concept.
Old May 12, 2004 | 11:44 PM
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my 87 NA has that doesnt it?



I get what he means now, i remember reading up on the ports and how they need to be altered when upgrading the car.
Old May 12, 2004 | 11:45 PM
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It does the exact same thign as Vtech, but the implementation is different due to the design differences of a rotary vs a piston engine.



Both alter the duration and area(or lift), but in a rotary, its accomplished by simply blocking off and opening ports, as opposed to the 3 lobes on the vtech cam.
Old May 12, 2004 | 11:49 PM
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so "vtech" is a spin off of our precious rotaries.



bastards.
Old May 12, 2004 | 11:56 PM
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Everytime it ry to argue that one the honda kids always go back to, thats impossible becuase honda put vtec in the first production car in 91 in the nsx...



I said form of vtec, we obviously dont have valves or camshafts...



And after that they just keep argueing, but honda had it first.
Old May 12, 2004 | 11:59 PM
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vtech or no vtech, its a honda. My buddy thought his prelude was cool, i lifted the hood on the 7 to check some things out and he goes



"1.3L???? thats a ******* joke right???? Ive BEEN in THAT car, that came from a ONE POINT THREEEEE????"
Old May 12, 2004 | 11:59 PM
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Man, thats the only thing hondas have to hold on to.....give them a little slack.
Old May 13, 2004 | 12:00 AM
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sure as hell arent holding on to the car......
Old May 13, 2004 | 12:00 AM
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Originally Posted by FDRacing' date='May 13 2004, 12:59 AM
"1.3L???? thats a ******* joke right???? Ive BEEN in THAT car, that came from a ONE POINT THREEEEE????"
Ive had a guy tell me his 5.0 mustang was 3 times as fast as my car since his engine was 3 times bigger. He would have been for a rude awakening had he actually put his money where his mouth was...

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