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Driving bliss Best roads? Best music? Whatever makes your 8 the best place to be, share it with us

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Old 10th May 2010, 08:30 AM
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Default Speed limiter

First of all THANKS to the Louts Elise (Exige i think) for making me stretch the A’s legs last night (sorry you couldn’t get past until I backed off

It’s the quickest I’ve pushed the old girl so far but when I backed off and let that little Lotus past, what a wonderful sound that makes when it’s flat out. I mean it sounds like a real race car (just don’t look like one with a 5 meter executive 4 door saloon not letting it past) I felt I little disappointed because I was only 5 mph away from experiencing what the speed limiter feels like, is it the same as the rev limiter. I should have took it there.
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Old 10th May 2010, 09:38 AM
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Tsk Tsk Not taking it to the speed limiter! How could you?
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Currently,
2000 S8, Merlin Purple, Leather Pack 1, Winter Pack 1, SPAX adjustable suspension, AP Racing 6 pot front caliper, 385mm fully floating disks, EBC Yellow Stuff Pads, Black Diamond grooved rear disks and predetor pads, D2 Doctors Brake Block.
1997 4.2 A8SQ - the Projekt. 12 years and ongoing!
1997 4.2 A8SQ - Ming Blue. Restoration sat waiting; saved from the Scrapyard
2003 C5 Allroad 4.2Q - Cobolt Blue. Towing car. Laid up awaiting manual conversion.
2005 C5 Allroad 2.5TDi FE - Grey - Workhorse.
2015 Q3QS SLine - Daytona Grey. Lots of extras! Long Haired Admirals cutter.

Previously
2003 C5 A6 1.9TDI FWD - Loaner from D2 Doctor Lifex
1997 S8 - Ming Blue. Loaned out and written off. I loved that car. My first engine swap after cambelt failure.
1996 4.2 A8SQ - Ming Blue. 178k on a cambelt! Trader's 8. Delivered to A8Parts at Lifex.
2003 2.8 A8SQ - powder blueish. Fill in for a while. Sold on.
1998 1.8T A4 Avant FWD. Ming Blue (there's a theme here), PEX for the 97 S8.
And a list of non VAG going back 40 years before I saw the light.
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Old 10th May 2010, 11:06 AM
ulfilias ulfilias is offline
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Meep. They do shift somewhat and get there very quickly.

What stunned me is if you'd have floored it, it would have still probably dropped down a gear under kick down, even at those speeds.

Anyone go any idea what they top out at, sans limiter ?
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Old 10th May 2010, 12:25 PM
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Quote:
Originally Posted by ulfilias View Post
Meep. They do shift somewhat and get there very quickly.

What stunned me is if you'd have floored it, it would have still probably dropped down a gear under kick down, even at those speeds.

Anyone go any idea what they top out at, sans limiter ?
My car only has a 4 speed box and i had it pinned to the floor, if it had kicked down there would have been bits of engine shooting out the exhaust.

I had it in my head they were limited to 155 read it somewhere, in owners book maybe.
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Old 10th May 2010, 12:53 PM
S8yot S8yot is offline
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Autocar road test of the FL S8 - Genuine 159mph with the speed limiter!
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Old 10th May 2010, 01:01 PM
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I knew i shouldn't have backed off.
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Old 10th May 2010, 01:40 PM
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Quote:
Originally Posted by S8yot View Post
Autocar road test of the FL S8 - Genuine 159mph with the speed limiter!
Interesting, do you think you could scan that in for us? Also James told me the other day he had 170, his is de restricted.
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Old 10th May 2010, 02:53 PM
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The A8 and S8 are geared for 186mph without the speed limiter. UK and US cars are limited to 155mph (maybe european to? Japanese and middle east cars arn't).

S8 achives the same speed with the extra 500rpm it has even though the gearing is lower.
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Conan (the Librarian)

Watch it if you dare

Currently,
2000 S8, Merlin Purple, Leather Pack 1, Winter Pack 1, SPAX adjustable suspension, AP Racing 6 pot front caliper, 385mm fully floating disks, EBC Yellow Stuff Pads, Black Diamond grooved rear disks and predetor pads, D2 Doctors Brake Block.
1997 4.2 A8SQ - the Projekt. 12 years and ongoing!
1997 4.2 A8SQ - Ming Blue. Restoration sat waiting; saved from the Scrapyard
2003 C5 Allroad 4.2Q - Cobolt Blue. Towing car. Laid up awaiting manual conversion.
2005 C5 Allroad 2.5TDi FE - Grey - Workhorse.
2015 Q3QS SLine - Daytona Grey. Lots of extras! Long Haired Admirals cutter.

Previously
2003 C5 A6 1.9TDI FWD - Loaner from D2 Doctor Lifex
1997 S8 - Ming Blue. Loaned out and written off. I loved that car. My first engine swap after cambelt failure.
1996 4.2 A8SQ - Ming Blue. 178k on a cambelt! Trader's 8. Delivered to A8Parts at Lifex.
2003 2.8 A8SQ - powder blueish. Fill in for a while. Sold on.
1998 1.8T A4 Avant FWD. Ming Blue (there's a theme here), PEX for the 97 S8.
And a list of non VAG going back 40 years before I saw the light.
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  #9  
Old 10th May 2010, 02:55 PM
Mr K Mr K is offline
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I worked out the theoretical top speed to be 186-188mph in 5th at the red line.

theres a derestricted one on youtube doing a claimed 186 on the autobhans.
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  #10  
Old 10th May 2010, 05:06 PM
Just_Ben Just_Ben is offline
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The speed limiter is just a soft-rev limit that is effective only in top gear. It doesn't feel like a rev limiter in that it doesn't switch in and out, it just closes the throttle as you approach the given engine/road speed.
My 90 hit's it's rev limiter in top gear at 8400rpm and it nearly shakes the car to bits!!!!! Not nice!
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