Engine 1zzfe

might as well try the 03+ engines

yeah id try an 03 1zz

1zzfe

does anyone know the difference in hp between a 98 1zzfe non vvti and a 01 1zzfe vvti???

is it worth my while to switch out to that motor instead??

need ideas for my other rolla......
both of my rolla's are 98's one is a three speed auto with a blown motor and the other is m daily driver its a 4 speed auto i need ideas on waht to do to either of them

5 more horsepower
electronically controlled valve timing "vvti"
direct coil igintion (no sparkplug wires/distributer)
better gas mileage??

thats bout all i know

the only difference in the 03 1zz is the intake and larger bore throttle body.

I'd love to have an intake manifold from one of the 98-00 1ZZ-FE's on my '03 - just for looks, if nothing else.

Trav

What about the ECU and header?

headers are different length thats all. Many car manufacturers lied about their car's performance (such as the 03-04 corollas). If you check toyota's website right now, You'll see that the 05 or 06 corollas now only have 125hp. There's absolutely nothing different about any of the vvt-i 1zz-fe other than cosmetics.

Kenny, don't get testicular torsion. You're saying Toyota bloated the HP figures for the '03+ and then reduced them because "they got caught lying". I'm saying that the numbers have been reduced b/c of stricter testing regulations.

Read this: http://www.theautochannel.com/news/.../17/140505.html

In other words, we may both be right.

I'm not an SAE member. If I was, trust me, I wouldn't be driving around in a corolla. If you want more details for their testing regulations go to their site and pay them to see the details.

Aren't the numbers down now because they have new regulations on how to measure power output?

no... lots of manufacturers got in trouble for "false advertisment" basicly. if there were newer regulations, then like 10 years from now, all the cars would have 100hp max

SAE-certified horsepower

In 2005, the Society of Automotive Engineers introduced a new test procedure (J2723) for engine horsepower and torque. The procedure eliminates some of the areas of flexibility in power measurement, and requires an independent observer present when engines are measured. The test is voluntary, but engines completing it can be advertised as "SAE-certified".

Many manufacturers began switching to the new rating immediately, often with surprising results. The rated output of Cadillac's Northstar V8 jumped from 440 hp (328 kW) to 469 hp (350 kW) under the new tests, while the rating for Toyota's Camry 3.0 L 1MZ-FE V6 fell from 210 hp (157 kW) to 190 hp (142 kW). The first engine certified under the new program was the 7.0 L LS7 used in the 2006 Chevrolet Corvette Z06. Certified power rose slightly from 500 hp (373 kW) to 505 hp (377 kW).

Just search for "J2723" using google or yahoo and you'll find a wealth of info on this new process, including things like how Acura's '06 lineup HP ratings have been reduced across the board.

So i'm guessing that with this SAE testing procedure on engine's horsepower, all the engines are being tested under same situations such as temperature, same humidity, same altitude and what not /// right???

cool

No, there's a difference in the hp between the corolla and celica because of timing, tuning, and exhaust set-up. The corolla is an economy car, they're going to tune it for gas mileage and a smooth ride, not for power.

yes the 01-02 and the 03+ have more power and advantages HOWEVER since the 98-99 1zz was a prototype used then it's a stronger motor when it comes to boost than the newer 1zz.

And also the celice GT has a higher redline.
*Basically, same engine + higher redline = more HP

Back to jox_rolla's question. I think it's not worth to swap the 01 or 03 vvti engine to that 4 speed 98 just for that 5-10hp.
But for that blown motor 3 speed one, since you need to put a new engine in, I think you should also do the 4 speed auto or 5 speed manual convertion also well. And since you need to do all that, how about just swap in a 2ZZ with 6 speed or 3S-GTE?

Any one have an idea where the change points for the VVT-i used in the Corolla are? Or where one would feel it... it seems to me the car comes alive some where around 3500 or so... anyone actually have data? Or is it a continuously variable system?

There is no change point in VVTi, not vtec or VVTLi.
As you said, it's continuously variable system.

That same feeling is in the 98-99 non vvt-i 1zz