IS F (2008-2014) Discussion topics related to the IS F model

And the "official" horsepower rating is... (merged threads)

Thread Tools
 
Search this Thread
 
Old 10-03-07, 10:47 PM
  #31  
Faheta
Driver
 
Faheta's Avatar
 
Join Date: Jun 2001
Location: cali
Posts: 140
Likes: 0
Received 0 Likes on 0 Posts
Default

Neiman Marcus lists the IS-F at $68K (I would imagine loaded)
First 50 production IS-F will be available on Oct 18.

http://www.edmunds.com/insideline/do...ticleId=122878
Old 10-03-07, 10:48 PM
  #32  
ChuH
Lexus Test Driver
 
ChuH's Avatar
 
Join Date: Mar 2001
Location: Guam
Posts: 1,188
Likes: 0
Received 14 Likes on 7 Posts
Default

That is 423 PS not 423 HP.

423PS = 417.21HP.

Chu...
Old 10-03-07, 11:55 PM
  #33  
Ramon
Lexus Champion

 
Ramon's Avatar
 
Join Date: Feb 2006
Location: San Diego, CA
Posts: 2,553
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by DominicAN
sadly its in a very detuned state for this application so if MB really wanted to showboat they could have easily used a similar tune of the other 63s maybe bringing the total count just north of 500...then what?
Then there is an even bigger gap between it and the competition! I agree, that AMG motor is a BEAST! My only wish was that the new C63's interior wasn't so hideous.
Old 10-04-07, 12:07 AM
  #34  
encore888
Lexus Champion
 
encore888's Avatar
 
Join Date: Mar 2005
Location: CA
Posts: 8,695
Likes: 0
Received 2 Likes on 1 Post
Default

Sorry but what is the Buff Book?

Ah, Lexus dealers in Maui, what a wonderful choice location. The 41# number sounds competitive...
Old 10-04-07, 02:47 AM
  #35  
IS350jet
Pole Position
 
IS350jet's Avatar
 
Join Date: Sep 2006
Location: Coral Springs, Fl
Posts: 2,882
Received 1 Like on 1 Post
Default

At 416 hp, if that's the case, the ISF may not be top dog in HP but the performance figures are where it will win. Thanks to the new 8 speed tranny, the car will perform extremely well. I believe it will take the M3 and the RS4 and give the AMG a good scare on the strip. While doing this it will do what no manufacturer in this segment has been able to do; AVOID THE GAS GUZZLER TAX! To me, that is truly impressive.
Old 10-04-07, 02:49 AM
  #36  
IS350jet
Pole Position
 
IS350jet's Avatar
 
Join Date: Sep 2006
Location: Coral Springs, Fl
Posts: 2,882
Received 1 Like on 1 Post
Default

This is the official HP rating for the Japanese market.
Old 10-04-07, 03:26 AM
  #37  
baddis es
Lexus Champion
iTrader: (3)
 
baddis es's Avatar
 
Join Date: Feb 2005
Location: FL
Posts: 2,318
Likes: 0
Received 2 Likes on 2 Posts
Default

i trule hope the 435 in the plate stands for something...and i also think that this is going to be spot on in handling compared to the m3, if not better.

the car most likely will outperform the m3 (hopefully)

i think we're all forgetting a big advantage the is-f has compared to the RS4 and the M3, and thats in the TQ !!!


"hp sells cars, tq wins races"
Old 10-04-07, 05:52 AM
  #38  
Tekknikal
Lead Lap
 
Tekknikal's Avatar
 
Join Date: Nov 2002
Location: VI
Posts: 517
Likes: 0
Received 0 Likes on 0 Posts
Default

how much is the m3?
any indication on the weight of the is-f?
Old 10-04-07, 06:02 AM
  #39  
Gojirra99
Super Moderator
 
Gojirra99's Avatar
 
Join Date: Oct 2002
Location: Canada
Posts: 30,054
Received 189 Likes on 130 Posts
Default Lexus IS F confirmed with 417hp under the bonnet

Lexus IS F confirmed with 417hp under the bonnet

Posted on Thursday 4 October 2007


Despite Lexus showing off its new sports sedan back in January at the Detroit Auto Show the company has been surprisingly tight-lipped about the number of horses kicking under the hood. However, today’s Japanese launch of the IS F allowed to officially state the figures as well as other details it hasn’t revealed before. The 5.0L V8 will develop 417hp (311kW) at 5,500rpm and 504Nm (372lb-ft) of torque, putting the IS F squarely in the same region as the BMW M3 and Audi RS4, its main competitors.

The engine will be mated to an 8-speed paddle-shift gearbox based on the one found in the LS460. Lexus has modified the transmission to offer a “M” mode for fast acceleration in first gear, while potentially limiting any damage caused by careless driving. The gearbox will also blip the throttle during downshifts to avoid jolts. The IS F has also had numerous suspension modifications, including new springs, shock absorbers, stabilizers tuned for the performance car. Sitting on 19in tires, the IS F uses large-diameter, wide 225/40R19 tires at the front and 255/35R19 tires at the rear for gripping the road and also gets a performance brake package.

Top speed is estimated by Lexus to be over 185mph, though the IS F will be limited to just 180km/h in its home market. Tellingly, the company forecasts just 500 sales a year in Japan but expects to sell over 5,000 in the U.S.
http://www.motorauthority.com/news/s...er-the-bonnet/
Old 10-04-07, 06:55 AM
  #40  
ndawood
Driver School Candidate
 
ndawood's Avatar
 
Join Date: Oct 2004
Location: Ontario
Posts: 38
Likes: 0
Received 0 Likes on 0 Posts
Default

According to a news article on Reuters the IS-f will have 423bhp....

SHUNTOU-GUN, Japan (Reuters) - Toyota Motor Corp (7203.T: Quote, NEWS , Research) unveiled the production model of its Lexus IS F sports car on Thursday as it aims to close the gap with global luxury car heavyweights Mercedes-Benz (DAIGn.DE: Quote, Profile , Research) and BMW AG (BMWG.DE: Quote, Profile , Research).

The IS F is the first in a new series of muscle cars planned under the Lexus line christened "F", created to broaden the brand.

"Lexus has long been renowned as a luxury, high-quality brand," said Executive Vice President Akio Toyoda, responsible for Toyota's domestic operations.


"But to be recognized as a true global premium brand, we knew we needed more emotional vehicles," Toyoda, grandson of company founder Kiichiro Toyoda, said at the car's unveiling at Fuji Speedway, the automaker's racing circuit near Mount Fuji.

Eager to show off the car's new five-liter, 423-horsepower V8 engine and eight-speed automatic transmission -- the world's first to allow manual-style gear changes -- Toyota invited reporters to test-ride the IS F.

Professional drivers whirled their passengers around the Fuji Speedway circuit, venue of the Formula 1 Japan Grand Prix last weekend, at speeds up to 240 kph (150 mph).

Lexus is the top-selling luxury brand in the United States, but it occupies a niche in Europe, where competition is fiercest. The 18-year-old brand debuted in Japan in August 2005, and Toyoda said it would take "at least a decade" for it to gain the kind of status that Mercedes and BMW enjoy in Japan.

Toyota's sales in Japan have been on a downtrend along with the rest of the market, where many consumers have shifted to 660cc mini-vehicles. Excluding that segment, dominated by Suzuki Motor Corp (7269.T: Quote, NEWS , Research) and Daihatsu Motor Co (7262.T: Quote, NEWS , Research), Japan's car market shrank 9.5 percent in September, the 27th successive month of decline from a year earlier.

Toyota's sales fell 4.2 percent, although the smaller drop meant its domestic market share grew to 45.8 percent for the year to date.

Toyoda said that rather than racking up sales volume, the IS F, a prototype of which debuted at the North American International Auto Show in Detroit in January, was aimed at luring Japanese consumers back to the car market.

Toyota said it aimed to sell 7,000 of the cars globally in 2008, mostly in the United States. The IS F will first hit showrooms in Japan on December 25, with a price tag of 7.66 million yen ($65,700), followed by a launch overseas from the first quarter of 2008.


The "F" designation was first conceived about 20 years ago with a project internally coded "Circle-F" -- the "F" standing for "flagship".

That gave birth to the Lexus brand in 1989, but the project then evolved into the high-octane line beyond Lexus's "normal engineering and development process," Toyota said.
Old 10-04-07, 07:33 AM
  #41  
4TehNguyen
Lexus Fanatic
iTrader: (1)
 
4TehNguyen's Avatar
 
Join Date: Jan 2006
Location: Houston, Texas
Posts: 26,033
Received 51 Likes on 46 Posts
Default

id rather have 372 torque than a high revving 295 torque, 8 gears allows an even more suitable gear selection than 6 speed
Old 10-04-07, 07:50 AM
  #42  
ISF
Driver School Candidate
 
ISF's Avatar
 
Join Date: Mar 2007
Location: Ca
Posts: 45
Likes: 0
Received 0 Likes on 0 Posts
Default

When Car and Driver and the rest do their head to head reviews and the IS F gets beat by the beamer in 0-60, 1/4 miles, and slalom numbers it would look worst for them to publish a higher number in hp then it would be at a lower. The Mags would jump on them even more saying while the Lexus is producing more hp it's not as fast as the RS 4, BMW etc. Did Lexus lie? Now if the IS F was to win and it's only rated at 417, then they will be like the Lexus is under rated making them look good in the process and everybody would be even happier! What’s the difference of 5hp? Anyone that has any knowledge of performance cars should know that it takes at least 20 hp to overcome a difference in the Gearing, weight, powerband, torque, tires" to make a difference in 0-60mph time and even more to be 1 mph faster in the ¼ mile. That's why cars that are only 20hp difference are a driver’s race. The higher rated car can lose at anytime depending on reaction times, weight, power band, torque, tires….all have a lot to do with acceleration.

Furthermore, Add to that the aerodynamics. Acceleration is defined as Force / Mass The traction force (that propel the car) is diminished by the drag force (resistance force). In your Force balance, the drag coeff Cd, frontal section area, center of gravity location and its height, mass distribution, ...all of them play a non negligible role in gaining those precious fractions of a second.

You have also to compare the torque (vs, rpm) curve for both engines if everything else is the same. Max HP alone is meaningless
Old 10-04-07, 07:57 AM
  #43  
4TehNguyen
Lexus Fanatic
iTrader: (1)
 
4TehNguyen's Avatar
 
Join Date: Jan 2006
Location: Houston, Texas
Posts: 26,033
Received 51 Likes on 46 Posts
Default

the torque curve for the M3 is actually quite good, very flat, but I am still disappointed with 295 ft lbs magnitude, there is a sharp decline at revs before 3000

Old 10-04-07, 08:01 AM
  #44  
LexFather
Guest
 
Posts: n/a
Default

Originally Posted by Manoj
Is that number too high for calling IS-F Limited edition ??????????
Yes sir, the IS-F will be the rarest of this competition. BMW has publically stated they will sell over 100,000 M3s this time around

Good for BMW but it takes away some of the magic.
Old 10-04-07, 08:04 AM
  #45  
vip3r1850
Driver
 
vip3r1850's Avatar
 
Join Date: Aug 2007
Location: New York
Posts: 177
Likes: 0
Received 0 Likes on 0 Posts
Default

https://www.clublexus.com/index.php?...496&Itemid=155

That article clearly states 423 . . . but then again does 423 p/s mean 417 hp ? ?

We can still hope the Japanese F differs from the U.S. F . . .

The primary reason why im saying this is look at the new sti, in Japan it will only be a 2.0l motor and N/A b/c of their strict emission laws and what not . . . The U.S. will be a 2.5l turbo - both kicking out close to the same hp, maybe the isf even though according to the article is 75% lower in emissions than they require, is still detuned greatly for their needs. Lets wait and find out.

Once again, how are we comparing ISF, M3, C63 together . . .

They arent in the same class, especially the m3 which has 2 doors, ISF should be M5 territory, big 4 door car with alot of *****

Last edited by vip3r1850; 10-04-07 at 08:11 AM.


Quick Reply: And the "official" horsepower rating is... (merged threads)



All times are GMT -7. The time now is 10:38 AM.