when it comes down to it Toyota are making awesome reliable engines they would have to be the best out there... they have good pick up for a none turbo 4 cylinder and great economy
VVT-i stands for Variable Valve Timing with intelligence. It allows you to change, you guessed it, the valve timing to allow a better fuel-air ratio for better performance at higher RPMs.
@leigh852 THANKYOU!!!!! i hate toyotas but this video is just goood. you dont know how easy it is to understand vvti engines because of this vid thankyou!!!!!
the two systems are built for 2 separate purpose... VTEC is for a second cam profile that suits high rpm VVTi is simply helps emission and fuel economy if you really want to compare, compare VETC with VVTL-i
grats on your tC man. I second guess myself all the time on what i should have gotten...Honestly I'd much rather be paying money for an RSX-S/Si or even used S2k. But I've got to make do with what i got. Investing money into it helps you love it haha. No F/I for me, just looks for now.
@donkeykong560 Wouldn't that make it similiar to a vtec killa setup? For the k20, you could put the intake rockers on the exhaust sides and grind down the lobes on a vtec cam and you would be running on the high cam all day. BTW: I didn't do my research on the dual vvti thing; I was just assuming based on the video I saw because it empasized so much on the vtc.
lol yea same here dude... i actually made my decision within like 30 minutes. turned out that the VW i wanted wasnt legit, so my dad and i decided on the tC in the same hour. brand new 08. its been awesome and i love toyotas... but somehow i keep thinkin i shouldve gone with an rsx-s. btw trd s/c is terrible. if you plan to boost, go with good aftermarket turbo. best thing about the tC is its torque and boost potential. they can get hella quick
True that Honda's engines may produce more power than Toyota's, but Toyota has went south in the realm of performance. However, this video is about VVT-i, and pound for pount, VVT-i still produces more power than VTEC, regardless of which engine produces more peak power. Toyota tends to use more aggressive cams, leading to a higher horsepower gain once the variable timing engages. But Honda's heads have amazing airflow. Still, Toyota wins in the MPG department. Just depends on what you want.
I am not sure, but i think that Alfa had variable valva timing before Subaru... I am sure that they have before Honda, for Subaru i'm not sure. But in my opinion VTEC is the best, and the most reliable.
sry, but: honda perfected it ? wtf ? vtec is good, but perfect ? no. the goal for all car developers is, to open and close the valves with somekind of magnetical device. without any others moving part, except the valve itself. this would be fully variable and completely without wastage. honda set a milestone with vtec. but pz dont call it perfect
