S4 (B8 Platform) Discussion Discussion forum for the B8 Audi S4 produced from 2009-2016

do we have a speed limiter on this car?

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Old Feb 25, 2012 | 01:57 AM
  #1  
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Default do we have a speed limiter on this car?

I was looking at an open road event where there is no maximum speed:

http://www.sscc.us/event_description.aspx

I'm curious if I quality for the super sport category (160-180mph).
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Old Feb 25, 2012 | 02:07 AM
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No limiter on my car with GIAC. Your car is limited to 250 km/h or 155 mph, therefore you don't qualify for the super sport category.
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Old Feb 25, 2012 | 02:25 AM
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I'm sure a friendly vendor can fix that. I'm wondering if anyone has actually his the limiter. The redline is "7000" on this car but it's actually fuel cut at 7250. I wouldn't be surprised if this car was soft on the speed limit also.

Is it something you can edit in VAGCOM?
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Old Feb 25, 2012 | 04:31 AM
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Found this post.

I can't believe it is really that simple. Can anyone confirm if this works on a 2012 S4?
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Old Feb 25, 2012 | 07:28 AM
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I believe the reason for putting a limit on the top speed is the tire issue. If for example a car has a top speed of 190 mph, the car has to be equipped with tires that can handle that top speed. Tires that are rated for speeds in excess of 180 are quite expensive.
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Old Feb 25, 2012 | 07:45 AM
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Originally Posted by sly1
I believe the reason for putting a limit on the top speed is the tire issue. If for example a car has a top speed of 190 mph, the car has to be equipped with tires that can handle that top speed. Tires that are rated for speeds in excess of 180 are quite expensive.
Factory tires are rated at 186.
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Old Feb 25, 2012 | 08:50 AM
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Originally Posted by blackhawk878
Factory tires are rated at 186.
So S4s now come equipped with Y ratted tires? That's good to know. Thanks.
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Old Feb 25, 2012 | 11:20 AM
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IIRC there is a factory speed limiter on the car (150ish mph I think). A ECU flash/tune from any of the three companies should remove that (and increase the redline as well).

I don't think you can edit that in vag com.

That event looks awesome!

Last edited by PsYkHoTiK; Feb 25, 2012 at 11:23 AM.
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Old Feb 26, 2012 | 02:53 PM
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You have to be quick but you can hit 170 before the limiter notices
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Old Feb 27, 2012 | 11:45 AM
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IMO, i wouldn't run this event unless you have a full roll cage and full complement of safety equipment in the car....

https://www.google.com/search?source...lassic+crashes
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