155mph Limit

[g10chy]

Hey,

I managed to get my S3 to its 155mph limit the other week on a private road!! Is there anyway to remove this limit? Does/should a remap help?


Cheers,
Chris

 

[Prawn]

that's not a limiter mate, that's as fast as it'l ever go!

 

[g10chy]

No it was defo a limiter!! It sat perfect at 155mph on the dials and felt like it had at least another 5-10mph more in at plus few thousand revs

 

[<tuffty/>]

Fairly sure there is no limiter as the book speed for an S3 is 149mph iirc... had mine off the clock on a private road before now

<tuffty/>

 

[wibble111]

Correct me if i'm wrong but i'm pretty sure the max speed of an 8L S3 is something like 148mph and they are'nt limited. 155 seems pretty high to me, have you had the speed confirmed with something like a sat nav?

 

[wibble111]

Tufty, off the clock before bt?

 

[jonny87]

i wouldnt of thought it would be limited, if it was im sure a remap would remove it, but is it worth it for those few extra miles an hour than you can rarely achieve?

i squeezed 168mph out of mine before i started running out of runway and shat my pants

 

[wibble111]

i squeezed 168mph out of mine

With what mods?

 

[jonny87]

bt mate

 

[Westy]

Somebody worked out the exact top speed an S3 could go with the standard gear box going on the gear ratios. 6th gear will only let you go so fast.

 

[<tuffty/>]

Tufty, off the clock before bt?

Nah, after

To be fair though the engine wasn't running properly at the time... will do a proper test again once she is all sorted

<tuffty/>

 

[g10chy]

Its just strange how i managed to get mine to sit exactly on 155 at the dials (agree it wont be actual 155mph) and it wouldnt move any further yet it had plenty of revs left and wasnt fluctuating at all?! Was as if it hit a limiter.

 

[A3Tom]

If you hit a limiter then it wouldnt be smooth and wouldnt sit bang on a certain speed and rpm.

 

[g10chy]

If you hit a limiter then it wouldnt be smooth and wouldnt sit bang on a certain speed and rpm.

Why wouldnt it be smooth? Its nowhere near bouncing off the rev limiter.

 

[badger5]

Its just strange how i managed to get mine to sit exactly on 155 at the dials (agree it wont be actual 155mph) and it wouldnt move any further yet it had plenty of revs left and wasnt fluctuating at all?! Was as if it hit a limiter.

it might have had revs left but not sufficient torque to keep pushing the air out of the way

It will be smooth when its out of puff.. the limiter would be a splutter/cough which you would notice

dont ask me how I know
6th gear, 8200rpm on a *private* autobahn

 

[A3Tom]

Why wouldnt it be smooth? Its nowhere near bouncing off the rev limiter.

Then as Bill has said its ran out of puff. The limiter will cut the power so you'll have some fluttering on the revs when it reaches max, much like it does when you go all the way through the red line in say, 2nd gear but not as severe.

If you're car wasnt doing any of that then it hasnt got a limiter and it had just run out of puff to make it go any quicker.

 

[Prawn]

to be honest, 155 clock speed sounds about right really.....

 

[A3Tom]

Yep, because it'll be about 140mph actual.

 

[Pendle Performance]

Yes there is a limiter on the S3 set at 155... If you hook up vcds (VAG-Com) it will now have a code stored as speed limiter hit.

It can be turned of within the software so you might as well have it remapped at the sametime.

Only ever had one vehicle here that had the code stored in the ecu, so must have been the same private road this Audi TT driver was on. ;-)