Interesting Chart

[DDH1313]

Credit for these graphs go to SteVTEC of maxima.org, but as a 1MZ-FE owner I found the stats very interesting.

[TadS]

Wow you can really see that VTEC kicking in on the top. I wonder how a VVT-i V6 would compare...any of you Gen 2 guys got graphs yet?

[Grazi07]

Make sure to look at the description of the engines..... the J30A1 they test is modded slightly, so follow the dotted line for true info. Interesting how the VTEC doesn't add much more, just 500 rpm later....

[TadS]

That's true, but still it does add a bit. I am interested in VVT-i vs. VTEC comparison b/ I feel like they represent the most advanced level of competition between Honduh and Toyota . It's pretty cool how much more power the Toyota motor is making through most of the power band .

[Jackass-Jeff]

VTEC (Valve Timing Electronic Control I believe) is like a digital signal. On and off. It kicks in at a high rpm by opening up the cams more. It has a ridiculous gain but damages the overall performance (torque). EX: S2000. 10k redline I think, but daily driving needs around 4-5k rpm. The engine only lasts around 100,000 miles... hahaha GG super high compression.

VVT-i (Variable Valve Timing w/ Intelligence) is a continuous system that is ALWAYS changing the ports to produce the best torque / power curve possible but has the least max gain. It just has the greatest overall gain. Due to the gains, you can drive at lower RPMs while getting enough power to move yo' arse around and save gas and also extending engine life.

i-VTEC (VTEC + Intelligence) changes the whole thing by adding a step system between "kick ins". Instead of it only kicking in at 6K RPM, it will kick in once at 4000 and once at 6000 producing a double VTEC like feeling.

VVTL-i (VVT w/ Lift and Intelligence) has the same effects as VVT-i BUT BUT BUT BUT BUT BUT BUT the L stands for LIFT. The lift happens at high RPMs also to produce the VTEC like gain for horsepower. This will be the greatest racing technology due to the low end power gain and the high end horsepower gain. I think this is only found in the Celica GTS, Matrix XRS, and the upcoming Corolla XRS. It's the technology for sportier cars while VVT-i will probably remain the standard w/ "normal" sedans and such.

[SKYravefever]

Did anyone notice that the torque figure for the 1MZ's abnormally high (~190 lb/ft)?

[TadS]

Xravexboix's post should be part of the FAQ Great information man.

[Jai_Jai_Binks]

Did anyone notice that the torque figure for the 1MZ's abnormally high (~190 lb/ft)?

There is a reason we all call our imz's a torque engine!

[Yanks0114]

Xravexboix's post should be part of the FAQ Great information man.

I added it, not like anyone is ever going to read it though

[Guest]

It also should be noted that the 1MZ was run on 93 octane. From my own personal experience with a 95 camry V6 and now my SLE V6 the 1MZ is a completely different engine on premium. It even dominates Nissan's VQ on torque which is admired as one of the best V6 engines ever made... "5 year Wards Best Engine i think".

[hari-bhari]

gotta love toyota torque. i look at the torque of an engine now before i look at hp. good low-end torque gets you around for daily driving, which for me is MUCH more important than having the high end horsepower. for example, in our avalon that has the 1mz, i only have to go up to about 2200 rpm in most cases to get it moving at decent speeds. when i drove a v6 2001 accord though, i noticed i was still taking it up to about 3000 rpm to get the same speed. it all makes sense now after lookin at the torque curve. go toyota

[Yanks0114]

It also should be noted that the 1MZ was run on 93 octane. From my own personal experience with a 95 camry V6 and now my SLE V6 the 1MZ is a completely different engine on premium. It even dominates Nissan's VQ on torque which is admired as one of the best V6 engines ever made... "5 year Wards Best Engine i think".

The VQ engine that was tested is not the new engine that nissan was using. This is a 3.0L engine, their new engine is 3.5L

[SKYravefever]

I'm well aware of how much low end torque there is on the 1MZ. My post was to point out if there were any errors in the graph. Non vvti 1mz's were rated @ 209lb/ft @ 4400. I may have recalled incorrectly (given the graph's not there any more), but it hit ~190lb/ft @ around 3500rpm. That's pretty darn close to the 209lb/ft.

[adam2562]

correction VTEC and VVTL-I use oil pressure to change the lift