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

IS F hard to down shift 4500-5000rpm?

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Old 09-08-11, 10:45 AM
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sksc1105
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Default IS F hard to down shift 4500-5000rpm?

Does this problem annoying you? How do you guys fix it?

The Lexus engineers bias to protect the car?
Old 09-08-11, 01:05 PM
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mugenh22a4
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Please elaborate...
Old 09-08-11, 01:14 PM
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rhy
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Are you talking about the car refusing to downshift if a downshift would take you above redline? Working as intended
Old 09-08-11, 01:37 PM
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DCoolBeans
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Your question is confusing, please reword it.

Are you trying to downshift while in a gear @ 5k? If you are why would you ever wanna do that. The car sounds smarter than the driver

Last edited by DCoolBeans; 09-08-11 at 01:44 PM.
Old 09-08-11, 04:35 PM
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sksc1105
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sorry for making confuse.

I am noob to ISF, I test drive from my friend. I drive evo ix at the moment, I always down shift before connering because i want the engine brake and give me the best rev during the Conner, even after.

I just can't do it in a ISF, maybe I'm noob to control it? Or it sets cannot be downshift when you over4500-5000?
Old 09-08-11, 05:52 PM
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Juanca
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Well, drive the car again in M and Sport mode, post your new experience.
Old 09-08-11, 05:57 PM
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DCoolBeans
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Is English your first language? I thought a caveman was writing this lol j/k

To answer your question we make 371 lbs of torque at 5,200 rpm. No need to down shift at 5k like what your saying. Drive the car more and get a feel for how the power comes on
Old 09-08-11, 05:59 PM
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DCoolBeans
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Originally Posted by Juanca
Well, drive the car again in M and Sport mode, post your new experience.
We shouldn't even have to say this. This should be just plain knowledge about our car

Last edited by DCoolBeans; 09-11-11 at 08:40 AM.
Old 09-08-11, 06:31 PM
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7No
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DCB, the guy said he was a noob - cut him some slack! It sounds like the issue is that he's not used to an 8 speed transmission. If you're running 4.5-5K going into a corner, you don't need to downshift. When you come out of the corner your shift up is so fast in the ISF, it doesn't cost you anything. And I agree with the comment above about the flat torque curve; you don't need to downshift to catch more torque.
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