|
02-28-2007, 11:44 AM | #1 |
toyota
Drives: 2007 Yaris RS Blazed Join Date: Oct 2006
Location: toronto, canada
Posts: 3,637
|
VVT-I vs VTEC ???????????????
Need to know what the major difference...i know vtec got the lift on it but which one is faster? i know yaris beat the fit 0-60 by about .6 sec. but is there anything else???
|
02-28-2007, 02:11 PM | #2 |
Drives: LB-Auto-PWR-ABS-Cruise-Springs Join Date: Aug 2006
Location: Richmond, VA
Posts: 1,065
|
Both are variable valve timing. I think Honda invented the technology. Now everyone uses it. It can be adapted for power or mileage. I had a Civic VX with VTEC tuned for mileage, but the Civic Si uses the VTEC tuning for power. Obviously, the Yaris and Fit are both tuned for mileage.
__________________
Other car is a 2005 Mustang Convertible 4.0L V6 Manual - Legend Lime Get YarAss in gear! RIP - Casey Tatum |
02-28-2007, 02:33 PM | #3 | |
toyota
Drives: 2007 Yaris RS Blazed Join Date: Oct 2006
Location: toronto, canada
Posts: 3,637
|
i see!!!
was hoping you can tell me which one is better that the other..i thought yaris got the lift as well but i was wrong..
Quote:
|
|
02-28-2007, 02:58 PM | #4 |
Resident Redneck
Drives: 07 Polar White Yaris Sedan 5M Join Date: Jul 2006
Location: Cumming, GA
Posts: 265
|
At this point, VTEC is still a bit more advanced. "Which is better," though, is still a bit too vague. I can tell you this- VTEC is, at this point, easier to tune for power, simply because of the huge amount of aftermarket support (Hondata and the like). VVT-i is advancing quickly, though, they have come a long way in a very short time. Toyota first used VVT-i in, what? 1993? The first Honda with VTEC was the Interceptor motorcycle in 1978.
__________________
My other rides: 2003 Honda Civic LX Coupe 5M- S/C K24 w/ LSD coming soon! 1999 Honda Civic EX Coupe 5M w/ B18 powaa 1985 Toyota Celica GTS Coupe 5M- track whip http://www.importlounge.com Last edited by Moose; 02-28-2007 at 07:37 PM. |
02-28-2007, 09:53 PM | #5 |
Drives: 05 YRS Silver Lining Metallic Join Date: Jan 2006
Location: Australia
Posts: 249
|
Toyota has a VVT version with L called.. er.. VVTL-i, engine code 1zzfe (I think). Its used on the current MR2 Spyder and Corolla Sportivo models. Same engine used by Lotus on the Exige as well.
|
02-28-2007, 10:13 PM | #6 |
Resident Redneck
Drives: 07 Polar White Yaris Sedan 5M Join Date: Jul 2006
Location: Cumming, GA
Posts: 265
|
We'll never get anything remotely that cool here in the States.
By the way (stereotypical Yankee question)- if y'all are down under, are we up top? Yup, I am an idiot.
__________________
My other rides: 2003 Honda Civic LX Coupe 5M- S/C K24 w/ LSD coming soon! 1999 Honda Civic EX Coupe 5M w/ B18 powaa 1985 Toyota Celica GTS Coupe 5M- track whip http://www.importlounge.com |
03-01-2007, 12:46 AM | #7 |
Banned
|
|
03-01-2007, 06:06 AM | #8 | |
vroom vroom
Drives: lil red 5-door Join Date: Sep 2006
Location: Bangkok, Thailand
Posts: 7,744
|
Quote:
Best way to explain the difference? the dyno. Look at the attached picture and see where the 1ZZ starts to run out of breath? That's where the high-rev cam on the 2ZZ kicks in and gives one heck of an extra kick in the pants. Honda's original VTEC as seen in NSX, or civic/integra type R works on this basis too, extra performance kick at high RPMs. Problem with this, of course, is that you need to have your engine revving hard at all time to get best performance out of it, there's not a lot down low... The VTEC we see in the Fit and other "city" cars, is more aimed toward reducing consumption and emission throughout the rev range, rather than maximizing power. I'm not even 100% sure that there are two cam profiles for the Fit's VTEC engine, it may just control the timing in the same way our VVT-i does.
__________________
The price of freedom of religion, or of speech, or of the press, is that we must put up with a good deal of rubbish. - Robert Jackson Bye bye 1NZ... |
|
03-01-2007, 01:25 PM | #9 |
toyota
Drives: 2007 Yaris RS Blazed Join Date: Oct 2006
Location: toronto, canada
Posts: 3,637
|
kewl!!
wow that was detailed info... daym i was hoping yaris has the lift but i guess i was wrong just oredered it and getting it end of april...maybe i should switch to matrix xrs instead...vvtl-i engine on it just dont like the shifting on that car.. kinna rough...
|
03-01-2007, 01:34 PM | #10 | |
Engineer/Artist/House-Dad
Drives: 2006 Toyota Sienna XLE Join Date: Aug 2006
Location: California
Posts: 419
|
Quote:
--B
__________________
His: 2006 Toyota Sienna XLE Arctic Frost Pearl, FC Package, 2007 Solara Nav unit, Spoiler, Running Boards & Auto-dimming rear mirror Hers: 2007 Toyota Yaris LB Black Sand Pearl, Auto, Power Package, Side Airbags, VIP security, USDM center armrest, and accessory 7 spoke 15" alloy wheels |
|
03-01-2007, 03:59 PM | #11 |
toyota
Drives: 2007 Yaris RS Blazed Join Date: Oct 2006
Location: toronto, canada
Posts: 3,637
|
rs - xrs
yah it was discontinued the xrs i was gonna get that first time it came out but the car look kinna funny..i just what its heart the ( VVTL-I ) engine on it.. maybe put it on the yaris... sweet.. over 170 hp if that can be done plus 6 speed gear box..
|
|
|