Vtec
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Originally Posted by Christople,Mar 31 2008, 06:29 PM
Just wait till Honda makes direct injection + Vtecs + whatever they want to call it.
I bet they can get 250-260hp out of a 2 liter 4 banger
I bet they can get 250-260hp out of a 2 liter 4 banger
Heaven!
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Originally Posted by Diablo99V,Mar 31 2008, 02:28 PM
I don't want to get technical but HONDA did not invent variable valve timming. They did perfect it and made it more reliable and mainstream. The funny thing is that HONDA used to get bashed and laughed at because of Vtec yet now most car manufacturers use it, including Ferrari, Lambo, and other high end cars. BMW actually has the most advance variable valve timing system but not the most reliable.
HONDA is still #1 in the world at engine technologies. A fact a few know and a lot deny. Sad.
HONDA is still #1 in the world at engine technologies. A fact a few know and a lot deny. Sad.
http://en.wikipedia.org/wiki/VTEC
Actually, Honda might not have invented variable valve timing, but it did invent variable valve timing and lift electronic control.
VTEC (Variable Valve Timing and Lift Electronic Control) is a valvetrain system developed by Honda to improve the volumetric efficiency of a four-stroke internal combustion engine. This system uses two camshaft profiles and electronically selects between the profiles. This was the first system of its kind. Different types of variable valve timing and lift control systems have also been produced by other manufacturers (MIVEC from Mitsubishi, VVTL-i from Toyota, VarioCam Plus from Porsche, VVL from Nissan, etc). It was invented by Honda R&D engineer Ikuo Kajitani.[1] It can be said that VTEC, the original Honda variable valve control system, originated from REV (Revolution-modulated valve control) introduced on the CBR400 in 1983 known as HYPER VTEC.[2].
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if its over-rated then Toyota, BMW, Ford, etc. would not follow in its footsteps....
which brings up the point how idiotic other fan boys always joke about vtec when they themselves are riding on something that was a spawn of the vtec king.
which brings up the point how idiotic other fan boys always joke about vtec when they themselves are riding on something that was a spawn of the vtec king.
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I prefer the continuously variable valve timing in my Porsche. It doesn't have a VTEC-like kick, but it optimizes the profile across the powerband vs. 2 discrete cam profiles like the S2000 has. Even Honda has improved it w/ i-VTEC, but sadly no love given to putting it in the F22C.
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Originally Posted by Heysus,Mar 31 2008, 02:45 PM
I don't know who "invented" it, but here's a nice read about Vtec's history:
http://en.wikipedia.org/wiki/VTEC
Actually, Honda might not have invented variable valve timing, but it did invent variable valve timing and lift electronic control.
http://en.wikipedia.org/wiki/VTEC
Actually, Honda might not have invented variable valve timing, but it did invent variable valve timing and lift electronic control.
Just because someone put their own flavor to it doesn't mean they invented it.
http://en.wikipedia.org/wiki/Variable_valve_timing
Honda just evolved the technology and made it widespread. I think this argument over semantics was done before.
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Originally Posted by __redruM,Mar 30 2008, 06:26 PM
Come-on, google first, it helps with facts: 17mpg for the GTO:
http://www.fueleconomyone.com/2005/specifi...pontiac_gto.asp
http://www.fueleconomyone.com/2005/specifi...pontiac_gto.asp
my archaic LT1 got 27mpg on the freeway going 80, when I should have gone 70 and gotten more.
sixth gear + torque, sorry man, but its true.
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Originally Posted by TheDonEffect,Mar 31 2008, 03:05 PM
"Fiat was the first auto manufacturer to patent a functional automotive variable valve timing system which included variable lift."
Just because someone put their own flavor to it doesn't mean they invented it.
http://en.wikipedia.org/wiki/Variable_valve_timing
Honda just evolved the technology and made it widespread. I think this argument over semantics was done before.
Just because someone put their own flavor to it doesn't mean they invented it.
http://en.wikipedia.org/wiki/Variable_valve_timing
Honda just evolved the technology and made it widespread. I think this argument over semantics was done before.
Regardless of who claimed to have invented it, Honda was undoubtedly the reason why such systems are so widely used today.
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Originally Posted by brockLT1,Mar 31 2008, 07:13 PM
omg, the googlez is teh most reliable source!!!!111
my archaic LT1 got 27mpg on the freeway going 80, when I should have gone 70 and gotten more.
sixth gear + torque, sorry man, but its true.
my archaic LT1 got 27mpg on the freeway going 80, when I should have gone 70 and gotten more.
sixth gear + torque, sorry man, but its true.
Just don't floor it.
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Originally Posted by Chris S,Mar 31 2008, 07:02 PM
Even Honda has improved it w/ i-VTEC, but sadly no love given to putting it in the F22C.
iVtec = Economy Vtec. That's why the S2000 never got it.
Porsche VarioCam Plus is pretty good.
http://www.autozine.org/technical_sc...ine/vvt_31.htm
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From: North Richland Hills, TX
Originally Posted by brockLT1,Mar 31 2008, 05:13 PM
omg, the googlez is teh most reliable source!!!!111
my archaic LT1 got 27mpg on the freeway going 80, when I should have gone 70 and gotten more.
sixth gear + torque, sorry man, but its true.
my archaic LT1 got 27mpg on the freeway going 80, when I should have gone 70 and gotten more.
sixth gear + torque, sorry man, but its true.
(I can say that, I owned a '94 6 sp. Z28)