S4 @ 200 MPH

[BRETTCOLLINS]

With the gearing on the box on S4 and RS4 you will only see about 185 max and you will be into the red line.I believe 3rd 4th 5 th and 6th gears are the same in the boxes only 1st and 2nd are different. could be wrong.

[Nige_RS4]

If you fit 23" wheels you should be OK ... LOL

[KayGee]

Or 225/105/17 rubber? might be a bit of rubbing on tight corners though...you'd have to roll the arches obviously.

[viperbl]

With the gearing on the box on S4 and RS4 you will only see about 185 max and you will be into the red line.I believe 3rd 4th 5 th and 6th gears are the same in the boxes only 1st and 2nd are different. could be wrong.

Right, all being that I manage to stay alive I will report back the max speed (speedo & GPS) ... then the next step may be to the gearing changing changed.

If I get 6th changed ... that just means more HP/torque to get the top end sorted out?

[Nordschleife]

... then the next step may be to the gearing changing changed.

If I get 6th changed ... that just means more HP/torque to get the top end sorted out?

if taking a long term strategic view rather than dealing with each step individually, a worthwhile alternative is to make the engine reliable at a higher red line. It is always a good idea to ensure that the gearbox and differentials receive better cooling too. And an alternative to swaping geat ratios might be to change the final drive ratio.

R+C

[moktoya]

Just to sidetrack a little... Would adding an M3 lip spolier help overall stability when the S4 is run at such high speeds? or does it not do much beyond enhacing aesthetics?

[Golich]

I've had clock reading of 180mph out of my RS4 running Revo's trial software. I can't remember what the revs were. It got to that speed from about 70mph in I'm guessing less than a 1.5miles nd felt ok. But feck were the brakes useless at stopping from that speed. I generated heat spots on the fronts but then the pads were pretty knackered despite having easily 7mm left on them. I didn't realise just how knackered they were until I put new standard pads on. What a difference. But the car felt perfectly stable at that speed.

I read an Audi Driver article on the RS4 last year that stated with the standard wheels, gear ratio and rev limiter the car was only capable of a true 185mph I think. I'll dig out the article sometime.

[Nordschleife]

as the speed doubles the brake effort goes up by the square of the increase!

[derdle]

Hi,

Saw the 5th Gear bit - but they reckon about 600bhp should be enough to crack 200mph....so to get the Lotus up to that power output I would imagine a Nitrous kit will be needed. But, I'm sure it will be a case of 0-200mph....once.

Paul

[RobTheHungryMonkey]

Am I right in asuming a '98 S4 to be limited to 155mph?

Has anyone maxed out their car in standard form?

[S2tuner]

The electronic top speed limiter on an S4 is 262.017km/h or 163.76mph. I have hit it the first day I had my '98 S4

[RobTheHungryMonkey]

Why is it limited to that speed?
Was that speed with a GPS?

[Nordschleife]

its how fast Germans think its safe for nongs and journalists to drive and it shuts up the tree huggers (easily pleased here)

[RobTheHungryMonkey]

I mean why 262.017km/h or 163.76mph? It's not exactly a round number! I thuohgt all german cars were limited to 155mph?

[derdle]

I thought it was 155mph cos that 's the maximum speed that a Gatso can clock.

Anyvay, onlee ze Germans vould set a spid limit ov 262.017km/h.

Paul