Wheels Mage Beyond 300 Included A Is-F

[Blacky]

See the latest Wheels mag has done a max. speed comparison on the Avalon strip and included the IS-F.

Pulled a 4.8 sec 0 - 100, that is pretty good seeing as most mags seem to give it a high 5 for this and I can never understand why.

Small article but good review.

[marvin]

Is that for the new 2011 ISF? The new model is meant to have a better diff right?

[malibu]

Is that for the new 2011 ISF? The new model is meant to have a better diff right?

As far I know the new mechanical diff was from the 2010 model, 2011 new suspension set-up

[Blacky]

2010 forward got the Torsen LSD and the 2011 upgrade got the suspension

Forgot to also mention the car ran a 12.9 1/4

Will scan and post shortly

[Lexster]

See the latest Wheels mag has done a max. speed comparison on the Avalon strip and included the IS-F.

Pulled a 4.8 sec 0 - 100, that is pretty good seeing as most mags seem to give it a high 5 for this and I can never understand why.

Small article but good review.

Finally, someone from the magazine knows how to drive the isf!. 4.8 stock seems about right. My best time stock 0-100 clocked around 4.5 seconds (with the aircond on!), but 4.7-4.8 was the average (using a gtech GPS timer.) however if the journo doesn't know how to launch, the isf will bog down off the line.

It would be interesting to read this article.

[Blacky]

There is not a lot in the article, but I will post tomorrow when I get onto my PC.

Funny as they have not updated their times in the price section of the mag and the ISF has the same times as the IS350!!!!

Sometimes I really to wonder if there is some bias against the Lexus but I don't have any idea why.

Do the journos really think Lexus would misquote the speed of a car by a whole second????

[Lexster]

:P Perhaps they ran the test with the isf going backwards therefore getting a time one full second slower in the earliest tests. Don't believe everything you see in the magazines, It appears some may have an axe to grind especially in Australian magazines. The tests done by overseas magazines eg car and driver are more on the mark. They are mostly all sub 5 seconds.

If they can't get a sub 5 second time from a fully run in isf, they really don't know how to drive. Unless the isf is new and the tires not in suitable condition. Perhaps they should consult forum members first or Lexus Australia should let us Lexus Forum members test the loaner isf before it is loaned to the car magazines so we can keep them honest.

It's suspicious that they show the same time as an is 350 in the price section. This is misleading. Isf will convincingly beat an is 350 even if an average driver is at the wheel.

Why some people carry such bias against such a lux performance bargain doesnt make sense.

This car costs the same overseas as an M3 or C63, yet we get it at substantially lower prices here, and it's not good enough for these journos. Badge snobbery? Euro car bias?

[Ultrasonic IS F]

See the latest Wheels mag has done a max. speed comparison on the Avalon strip and included the IS-F.

Pulled a 4.8 sec 0 - 100, that is pretty good seeing as most mags seem to give it a high 5 for this and I can never understand why.

Small article but good review.

Finally, someone from the magazine knows how to drive the isf!. 4.8 stock seems about right. My best time stock 0-100 clocked around 4.5 seconds (with the aircond on!), but 4.7-4.8 was the average (using a gtech GPS timer.) however if the journo doesn't know how to launch, the isf will bog down off the line.

It would be interesting to read this article.

The article seemed to suggest the IS F has launch control? Certainly can't find details of that in mine. So what is the best way to launch them for a quick time? Is it simply turn off all traction control, left foot brake and right foot squeeze the accelerator up and then let go left foot? How well does the transmission cope with that if there is no launch control? Some cars have programmed launch control that suggests would be kinder on the transmission than imposed launch control. Interested in your responses.

[Blacky]

I think the article is saying they like the fact the ISF does not have any type of formal Launch Control, not fandugal switched or anything. Simple find the right techniques of brake and accellerate.

In the article the twlk about loading up on the break and letting it go but reading other forums people say this lights up the tyres. We I have not tried it get so have no idea of the best tequnique.

[Lexster]

See the latest Wheels mag has done a max. speed comparison on the Avalon strip and included the IS-F.

Pulled a 4.8 sec 0 - 100, that is pretty good seeing as most mags seem to give it a high 5 for this and I can never understand why.

Small article but good review.

Finally, someone from the magazine knows how to drive the isf!. 4.8 stock seems about right. My best time stock 0-100 clocked around 4.5 seconds (with the aircond on!), but 4.7-4.8 was the average (using a gtech GPS timer.) however if the journo doesn't know how to launch, the isf will bog down off the line.

It would be interesting to read this article.

The article seemed to suggest the IS F has launch control? Certainly can't find details of that in mine. So what is the best way to launch them for a quick time? Is it simply turn off all traction control, left foot brake and right foot squeeze the accelerator up and then let go left foot? How well does the transmission cope with that if there is no launch control? Some cars have programmed launch control that suggests would be kinder on the transmission than imposed launch control. Interested in your responses.

There is no launch control on the ISF that I know of. The launch technique that works for me is:

Leave traction control on, sport mode, transmission in manual

Depress the brake pedal hard and

simultaneously stall the accelerator to approx 1100 rpm (any more and too much wheelspin)

to launch: simultaneously release the brake pedal and quickly depress the accelerator pedal/ floor it

Traction control will cancel some wheelspin and then off she goes

don't forget to shift to second gear when the "beep" sounds this happens very quickly!

You can vary the rpm and rate of flooring it depending on the prevailing conditions. This technique does take some practice to maximise the acceleration and generally 0-100s are in the mid to high 4s

Any feedback, suggestions welcome.

[Lexus Nerd]

Finally, someone from the magazine knows how to drive the isf!. 4.8 stock seems about right. My best time stock 0-100 clocked around 4.5 seconds (with the aircond on!), but 4.7-4.8 was the average (using a gtech GPS timer.) however if the journo doesn't know how to launch, the isf will bog down off the line.

Does anyone know how acceleration times are determined by manufacturers?

The "official" 0-100 time is 4.9 seconds. Should a manufacturer decide to quote an acceleration time, I would have assumed that such a time is recorded on a stock vehicle without any fancy footwork - just ensure the driver weighs about 70 kg, there's only 20 litres of petrol in the tank and stick the accelerator pedal down on a racetrack where there's sufficient grip so as to not spin the wheels too much. (Of course, you can better the time with an appropriate launch technique - YouTube would be much smaller if it wasn't possible to beat the manufacturer's time!) If I'm right, then there's a serious problem with journos who, with an IS F, just stick their foot down and achieve times in the high 5's.

[Lexster]

Finally, someone from the magazine knows how to drive the isf!. 4.8 stock seems about right. My best time stock 0-100 clocked around 4.5 seconds (with the aircond on!), but 4.7-4.8 was the average (using a gtech GPS timer.) however if the journo doesn't know how to launch, the isf will bog down off the line.

Does anyone know how acceleration times are determined by manufacturers?

The "official" 0-100 time is 4.9 seconds. Should a manufacturer decide to quote an acceleration time, I would have assumed that such a time is recorded on a stock vehicle without any fancy footwork - just ensure the driver weighs about 70 kg, there's only 20 litres of petrol in the tank and stick the accelerator pedal down on a racetrack where there's sufficient grip so as to not spin the wheels too much. (Of course, you can better the time with an appropriate launch technique - YouTube would be much smaller if it wasn't possible to beat the manufacturer's time!) If I'm right, then there's a serious problem with journos who, with an IS F, just stick their foot down and achieve times in the high 5's.

My guess: most manufacturers would quote the time they can achieve using some degree of fancy footwork/tricks or otherwise.

For example, in a any current AMG, slamming the foot down would lead to high 5s even 6s 0-100 even with traction control on due to immense torque. The driver must roll into the accelerator at a given rate to get sub 5s

In an (non modified) sti to get quoted times needs a clutch dump at very high rpm. In practice doing this could fry the manual transmission after a few gos.

Current M3s need a sequence of settings to initialise the launch. mess it up and you're left standing still. There may also be a limit of launches before the warranty is void?

The isf launch is a simple old fashioned torque brake and go

[Lexster]

See the latest Wheels mag has done a max. speed comparison on the Avalon strip and included the IS-F.

Pulled a 4.8 sec 0 - 100, that is pretty good seeing as most mags seem to give it a high 5 for this and I can never understand why.

Small article but good review.

this is a nice and fair review, good post

[Lexster]

There is not a lot in the article, but I will post tomorrow when I get onto my PC.

Funny as they have not updated their times in the price section of the mag and the ISF has the same times as the IS350!!!!

Sometimes I really to wonder if there is some bias against the Lexus but I don't have any idea why.

Do the journos really think Lexus would misquote the speed of a car by a whole second????

ISF acceleration times have been updated in the Wheels magazine price section. 4.8 sec 0-100km, 12.9 quarter mile. B)

[Blacky]

Woo Hoo :D