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SC430 - 2nd Gen (2001-2010)

Does this graph show acceleration accurately?

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Old Jun 11, 2019 | 07:54 PM
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Default Does this graph show acceleration accurately?

The SC430 seems to have all I want except one vital thing -- exciting acceleration from stop. Each that I have driven seem to have a slow start and dip before starting its real acceleration. Is how they all are? The graph I drew should hopefully show what I'm talking about. If there is a way to fix that then I'd definitely buy one.


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Old Jun 11, 2019 | 08:32 PM
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Check this thread: https://www.clublexus.com/forums/sc4...-thoughts.html. Beginning at #12
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Old Jun 11, 2019 | 09:12 PM
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Originally Posted by VVTiBob
Check this thread: https://www.clublexus.com/forums/sc4...-thoughts.html. Beginning at #12
Thanks! I don't own the car yet, just been test driving them. Sounds like I can do this while I'm on a test drive without them getting all suspicious on me.
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Old Jun 11, 2019 | 09:43 PM
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I am not experiencing any lagging acceleration with my SC. She takes off as smoothly as silk.
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Old Jun 11, 2019 | 09:51 PM
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Originally Posted by GmanSC
I am not experiencing any lagging acceleration with my SC. She takes off as smoothly as silk.
Odd, it happened with all three I've driven so far.

Have you ever driven a BMW 645/650, Mercedes SL500/550 or Jaguar XK by any chance? Those are the cars I'm also considering and they all accelerate much more quickly from a stop than the SC does. You punch it and they just go. But the SCs have all done that lag I showed in the drawing before hitting it's stride and sadly takes the OOMPH out of the takeoff. I'm hoping the ECU reset will do it.
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Old Jun 12, 2019 | 11:09 AM
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Yes, there is some lag (somewhat fuel dependent). A lot of the lag is typically caused by the ECU "learning how you drive" and adjusting. Unfortunately, it typically makes it worse when it adjusts. There is a key sequence for resetting the ECU that will get rid of the learned response. Do a search and you'll find it. (Otherwise, I can try to track it down tonight or tomorrow night when I get home.) This will do the same as disconnecting the battery and reconnecting it without all the lost memory problems associated with disconnecting the battery and it only takes 2 or 3 minutes.
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Old Jun 12, 2019 | 12:28 PM
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Originally Posted by AlohaBob
Odd, it happened with all three I've driven so far.

Have you ever driven a BMW 645/650, Mercedes SL500/550 or Jaguar XK by any chance? Those are the cars I'm also considering and they all accelerate much more quickly from a stop than the SC does. You punch it and they just go. But the SCs have all done that lag I showed in the drawing before hitting it's stride and sadly takes the OOMPH out of the takeoff. I'm hoping the ECU reset will do it.
here are the steps Bob and Harold were referring too...I have a printed copy in my glovebox.

It is quick and easy to reset the ECU and there are no cons to it.
1. Get in your car and insert key. (It doesn't matter if you close the door or not.)
2. Turn the key to the on (not start) position.
3. Press the gas pedal to the floor.
4. Hold the pedal to the floor for five seconds, then turn the key back to the "off" position
(don't remove the key), then release the gas pedal.
5. Wait 2 minutes.
6. Remove key.
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Old Jun 12, 2019 | 02:33 PM
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I did this reboot today while on a test drive and it did actually make a difference! So thank you for that. The car still didn't make my butt checks clench like a couple others have, but if i can get one of these for $10,000 less and have less to worry about in repairs then it may be worth it
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Old Jun 12, 2019 | 02:39 PM
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Originally Posted by AlohaBob
I did this reboot today while on a test drive and it did actually make a difference! So thank you for that. The car still didn't make my butt checks clench like a couple others have, but if i can get one of these for $10,000 less and have less to worry about in repairs then it may be worth it
If you think you are going to get an SC430 make your butt cheeks clench you are looking at the wrong car. It was never meant for butt clenching but butt coddling.
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Old Jun 12, 2019 | 03:22 PM
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Buy one, then swap the engine with a 2JZGTE and you'll get what you want.
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Old Jun 12, 2019 | 03:56 PM
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As Digitatc suggested:

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