Faisal Sheikh
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Just found out another thing where there seems to be cost cutting. The IS500 F-Sport transmission and differential are not from the RCF, but the 8 speed and the differential from the IS350 RWD
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bogglo
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Does not mean it wasn't tuned differently
mikeavelli
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I’ll be in Dallas Friday... 
Faisal Sheikh
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Yes, possibly software might be different compared to the IS350 tune, but the stronger differential, oil coolers won't be there. Also, the IS350 ratios/final drive would be different than the RCF.
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It's not a F car as you noted , And it has the F Sport logo, So what car is it supposed to be? IS 500 with the F logo, Yes I am a ISF owner I am not taking any offense to what Lexus is doing with it they are the manufacturer they can do what ever they want to do with it. And how do you know they aren't going to rebadged it in the future after the Launch? Do you work for Lexus or have actual insider reviews? There's many ways that could be done with aftemarket kits to show that the IS 500 is a V8 Performance car, anyone can Buy the F performance badges and replace the 500 with the F logo, or debadge the F Sport logos, and replace it with the F Performance logos ,only way to know is the slanted quad exhaust and engine sound.
For sure the next Sema show there will be aftermarket fenders that have the air vents/gills and engine performance parts. You want zoom zoom and have the $$$ The ISF can be moded to meet or beat the competition.
There's no confusion if you are familiar or own a F performance car. For me the debut just looks like the base IS, with the bigger hood on the engine bay and the quad exhaust, they did the samething when the ISF debuted, only difference was the front fascia and fenders, Lexus could have done it as the Concepts pictures shown before the official debut.
That's what I ment it just throws off its distinction with the Base IS models.
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no diff cooler, no oil cooler, smaller brakes, narrower tire, explains why the IS 500 is so little heavier than IS 350. so on straight IS 500 might be faster than RCF, but on track no chance. anyway, who tracks cars? most don't, so IS 500 is good enough for those wanting a faster IS 350 with bonus of better V8 sound.
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It's always possible, only Lexus models I know of that came with a manual was the 1st Gen IS300, The ES 250/300 since it's platform was based on the Camry and the SC300. Not sure if the SC400 V8 had it or the auto was swapped to manual, also the 2nd Gen IS250 from 06- 2012.
It will be nice to have a F performance car with a manual transmission, but I'm guessing Lexus figured out people might end up blowing the motor if they don't know what their doing while racing or drifting..lol just messing..
It will be nice to have a F performance car with a manual transmission, but I'm guessing Lexus figured out people might end up blowing the motor if they don't know what their doing while racing or drifting..lol just messing..
Faisal Sheikh
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It has pretty much the same power to weight ratio as the RCF (lexus officially says 3890 lbs for IS500 F-Sport and 3900 lbs for the RCF on their site), but it has a smaller foot print in the rear so it will have less traction. RCF did 0-60 mph in 4.1 seconds with C&D so if Lexus is conservative with the IS500;s 0-60 mph 4.5 seconds, it might be as quick as the RCF in a straight line. Also, gear ratio/final drive is also another variable.
Like I said, does not mean people will not find the IS500 F-Sport as/more enjoyable than the RCF since it will be like a hooligan's car. It will smoke the rear tires and oversteer more easily because of less mechanical grip in the rear and same engine/power.
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They don't have a manual transmission with the required torque capacity. Their heaviest duty manual (not for a Hino truck, that is) is the 5MT with 1VD and 6MT with 1GD both with 600N.m torque capacity. Toyota always leaves a 40% margin so both the 1VD and 1GD are limited to 430N.m (600/1.4) when paired with manual. Also these gearboxes are for trucks so they are not really suitable for sports cars. The 2UR has 540N.m so it would require a 750N.m rating by Toyota's standards.
Toyota has not had a high torque rating manual transmission since the Getrag V160 on the Supra Mk4.
Faisal Sheikh
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A comparison shot from the rear angle on the width of the rear axle. The IS500 F-Sport seems about 2 inches narrower than the RCF. The rear fenders bulge out a lot more on the RCF. That means, the IS500 F-Sport will be easier to oversteer.
mikeavelli
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I see you are new around these parts.... Lexus gave me the teaser. And I’m posting from HQ now lol.. I wonder why lol
The IS F is cool. It had its time, it is an old legacy product. A new age is coming and either get on board or watch things pass by,
CRSKTN
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In addition to having the hookup you can tell from dudes posts and videos that Mike is a good hearted, smart guy. The people make this the only auto forum I use.
mikeavelli
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Thank you!
Once I’m fed, otherwise I turn into an angry Betty White lol
lol go easy on the poor guy
CRSKTN
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mikeavelli
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Obviously I’m sworn to secrecy but there’s some really dope things coming with this car. Keeping it relevant to this thread.
Get the checkbooks ready lol
Get the checkbooks ready lol
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I hope they retire the 2UR in the RCF and put the TTV8 in a all-new RCF, make it a true competitor to M4