Cts 0-60 Time

[PaulT]

Managed a handy 7.26sec at Silverstone which I thought was quite reasonable. Had a much better time there with a dry track than at Santa Pod with them throwing water over the track all the time

We comfortably beat a Focus ST170 who did over 8sec, but there was a CTR driver who did 6.77sec which I guess is almost exactly what Honda claims the car will do.

Mind you, I did have 3/4 tank of ordinary 95ron and hadn't bothered to remove the spare wheel, excess fluid from the washer bottle etc. :D

So much for Toyota's quoted time of 0-62 8.4sec!

Cheers

Paul.

[accylad]

I always reckoned Toyotas 0-60 time was bit odd, mine certainly feels a lot quicker than that. Maybe its to keep the insurance group down !

Accylad

[PaulT]

I always reckoned Toyotas 0-60 time was bit odd, mine certainly feels a lot quicker than that. Maybe its to keep the insurance group down !

I've heard that from the sales reps, but I also think they are trying to make the MR2 and Celica look faster!

Cheers

Paul.

[Nick-Johnson]

That time quoted by Toyota is a utter joke, 7.2 is a much more realistic time for the Corolla!

[Aphelion]

I know this isn't exactly scientific, but there is a section of road, cant be any more than 1/3 of a mile, a junction comes on to it and the idea is to look at your speedo before you get past a road sign.

A guy in a Civic Type R done 100 Mph, a Guy in a Chipped Golf GTI done 97 and a CTR done 98-99

Must be around 7 Seconds

[The Gooner]

I just swapped a Mazda 323 2.0 sport for the CTS. Mazda reckoned low 9 for 0-60 but I timed it at mid 8 easily. The TSport is alot quicker :D

Oh and the smile on the lift

[PaulT]

It's even more impressive when you remember that the Corolla 1.8 doesn't get out of bed until 28mph. We are giving away a bit to these other cars until then, but of course things get a lot better after that :D :D :D

Cheers

Paul.

[Aphelion]

Totaly agree with you there, last week i drove a 115 BHP Focus TDCi and that seemed realy quick at low speeds and my girlfriend has one of those Fiesta Zetec S' and just feels realy nippy, the CTS just seems to take an age getting up to 30 the car i find a little un repsonsive at these low revs, soon after its a different story, i find the car has excelent traction out of corners, just picks up speed, its some car.

Maybe the 0-30 time depends on the gearbox?

[PaulT]

Maybe the 0-30 time depends on the gearbox?

The 6200rpm switch is at about 28mph in 1st gear. Charges on to about 38mph then you have to find 2nd.

If it is possible to get the cams to switch earlier, say 4500rpm by fixing the ecu, then we'd be in business. Or get the supercharger I suppose.

Cheers

Paul.

[The Gooner]

If it is possible to get the cams to switch earlier, say 4500rpm by fixing the ecu,

That would make it awsome, the power dlivery coming in 1000-1500 revs earlier would shave of time on the 0-60 considerably

[CozmoNz]

youd lose fuel economy...

remember toyota put it at that point for a reason... so when you REALY wanna know quick, you have to mash your foot.

you couldnt be driving through town and suddenly hit the power reagon... using most of your fuel (of course youw oudltn be flooring it, but the cams would kick in and a heap of air would rush in.... and more fuel obviously).

lowering it would gain speed, lose fuel... then again i guess you cant have both :).

[Nick-Johnson]

If it is possible to get the cams to switch earlier, say 4500rpm by fixing the ecu,

That would make it awsome, the power dlivery coming in 1000-1500 revs earlier would shave of time on the 0-60 considerably

There are loads of posts regarding changing the "High Lift" cam settings and there is only one answer to this and it is it cant be done!

Pressure builds up and mechanically moves a pin as you climb up the rev range and when you hit 6200RPM engages the “Lift Zone” as second set of cams are used!

Unfortunately moving this “Lift” stage any earlier down the rev range would only loose you performance not gain you any and the engine lacks torque at low revs!

Get yourself a TRD exhaust system and a Blitz air induction kit if you would like a like more power!

Nick

[phil3345]

Or get a typre r Nick

[PaulT]

There are loads of posts regarding changing the "High Lift" cam settings and there is only one answer to this and it is it cant be done!

Pressure builds up and mechanically moves a pin as you climb up the rev range and when you hit 6200RPM engages the “Lift Zone” as second set of cams are used!

Unfortunately moving this “Lift” stage any earlier down the rev range would only loose you performance not gain you any and the engine lacks torque at low revs!

I'm afraid I don't believe a word of this! Respectfully! :D

The cam switches because a pump squeezes oil into a channel behind the locking pin which causes the second cam to engage. That pump is electronically controlled by the ecu to kick in at precisely 6200rpm. There is no logical reason why the electronic setting cannot be changed.

And moving the lift to lower down the range would most definitely help ... that is why there is a step in the power delivery. As you move down the range this step will become less noticeable, but there will still be an improvement. You are still chucking a whole lot more mixture into the cylinders.

In sixth gear 90mph is 4500rpm, so you could set the lift to start there and still have plenty of cruise revs off the lift.

An induction kit will of course help, but a simple ecu change requires no fitting of new parts to the vehicle. The issue is that nobody knows how to do it. :(

(There is some more info on VVTL-i on this Elise page, click.)

Cheers

Paul.

[<imek>]

PaulT,

Good advice: read newcelica forums, cause this is BS:

And moving the lift to lower down the range would most definitely help ... that is why there is a step in the power delivery. As you move down the range this step will become less noticeable, but there will still be an improvement. You are still chucking a whole lot more mixture into the cylinders.

On newcelica you'll find detailed info + charts showing that you are absolutely wrong.

[The Gooner]

cant find post

i have searched forumns and only post it finds is this one with newcelica on it

Can you guide me bit more please :)

[mircea]

for Paul T,

Toyota FE Series Engines

(3/5SFE / 4/7AFE / 4/5EFE / 1ZZFE / and V6 / V8s)

The various FE series engines (using the FE head design) are the most thoroughly developed and purpose tuned Toyota power plants. In the USA, 98% of current models Toyotas use this engine/head design. The FE 4 valve per cylinder, narrow-angle Twin Cam heads (on the various Toyota blocks) are the reason for the amazing response and smoothness of the current generation Toyota motors. The high torque characteristic designed into these engines give the driver all the advantages of the Twin Cam head design- plus low-end torque and fuel economy. Torque is the reason why these engines respond quickly and smoothly. The performance band has been engineered to provide power from low RPM to the designated redline.

There has been a lot of requests for parts and modifications for these engines, but unfortunately trying to raise the RPM band (or changing cams) will negate all the built-in attributes of these engines. A camshaft change to raise the power band higher, will result in the loss of low-end torque and idling problems. Drivability will suffer and the trade off will leave the customer with a compromised engine, trying to work against the ECU program and engine design.

By comparison, the performance oriented GE versions of the same series engines, (if available on the sporty models)- offer about a 20% horsepower advantage- but at a loss in low RPM response and torque. The GE heads are more of the true Twin Cam design: wide-angle valves, long duration cams- suited for high RPM and high output- but at the sacrifice of throttle response in the lower RPM levels.

There are improvements that can be made to the FE engines- but the Toyota engineered power band should not be altered. The ECU program and Camshaft profiles, if changed will result in a loss of drivability and risk internal damage. You cannot do a better job than Toyota on coaxing power from these series engines, and needless to say, stay street-legal.

Upgrading these engines, is of course still possible: intake systems, exhaust components, ignition upgrades all help in fine-tuning these engines. The rule to follow and keep in mind is that all modifications are basically external in nature. The only exception being pistons- to increase or decrease compression- within the same RPM band. Turbocharging and/or supercharging will help- but keep in mind that based on the design parameters (again) these engines were designed for response- meaning lightweight internals: con rods/crankshaft (as compared to the sportier GE series engines).

The short answer is- if you are seeking a true high performance engine and high HP outputs- upgrade to the GE version of your engine (if available).

--------------------------------------------------------------------------------

[Nick-Johnson]

Or get a typre r Nick

Much better idea, Phil

[Nick-Johnson]

Or get a typre r Nick

There is so much talk about changing the High Lift cam setting, but in reality nobody out there has found out how to do it.

I have spoke to many technicians while I was a Toyota owner and I dont care what you say the Lift Zone cant be engaged any earlier down the rev range.

If it were to be done you would lose performance not gain any due to the lack of torque the engine has.

For crying out loud I done see why you don’t understand the 2G-ZZ engine has been designed to produce it peak power at 6250RPM and over, not any lower. It is only a normally aspirated high revving 1.8 I think a few of you are forgetting that!

Nick

Much better idea, Phil

[Nick-Johnson]

Or get a typre r Nick

Much better idea, Phil

There is so much talk about changing the High Lift cam setting, but in reality nobody out there has found out how to do it.

I have spoke to many technicians while I was a Toyota owner and I dont care what you say the Lift Zone cant be engaged any earlier down the rev range.

If it were to be done you would lose performance not gain any due to the lack of torque the engine has.

For crying out loud I done see why you don’t understand the 2G-ZZ engine has been designed to produce it peak power at 6250RPM and over, not any lower. It is only a normally aspirated high revving 1.8 I think a few of you are forgetting that!

Nick

[PaulT]

Good advice: read newcelica forums, cause this is BS:

...

On newcelica you'll find detailed info + charts showing that you are absolutely wrong.

Well I stand to be corrected. You could do me a favour and post a link. In fact, if you are going to start with the abuse, you had better deliver.

As for not being able to improve on the performance of the engine by fiddling with the ecu, well Lotus has done that with the new Elise/Exige. It is *not* exactly the same as the stock Toyota engine. The fuel economy quoted for the Exige is lower than that quoted for the Corolla, it drinks more fuel even though it is very much lighter.

And there is an *undisputable* step in power delivery when the bigger cam engages. Are you really claiming that this wouldn't happen at 6100rpm, or 6000rpm ... etc. How far down do you think you can go?

I've looked at newcelica.org, if that's the one you mean. Seems that somebody tried to move the onset of lift further down the rev range, but was unsuccessful at getting more power because they didn't also modify the valve timing, which appears to be different between the two cams. That is very far from saying that more power isn't available with the bigger cams earlier in the rev range, it is just that you need to tweak more than the the onset of lift parameter.

As I say, just because nobody has been able to do it yet (and not many have tried by the sound of things) doesn't mean it can't be done. In fact, it would be very surprising indeed if it couldn't be done.

Paul.

[PaulT]

for Paul T,

Toyota FE Series Engines

(3/5SFE / 4/7AFE / 4/5EFE / 1ZZFE / and V6 / V8s)

Thanks for the info Mircea, but we are talking about the 2zz-ge engine here.

Paul.

[eep2nw]

Hi guys, I'm just wondering what's the main reason for Toyota quoting 0-60 figures at 8.4s when top gear and others have managed <8s ???? This has been an issue with my office mates because they just don't believe that the CTS could do less than 7.5s....

[Nick-Johnson]

Hi guys, I'm just wondering what's the main reason for Toyota quoting 0-60 figures at 8.4s when top gear and others have managed <8s ???? This has been an issue with my office mates because they just don't believe that the CTS could do less than 7.5s....

I use to own a Corolla T-Sport, only just changed it for a Civic Type-R but to reiterate on what you were saying about the CTS 0-62 time a sub 7.5 second sprint is easily achievable if launched correctly!

[phil3345]

Paul t why does your clicky go to the microsoft site???