Recommended cruise speed for a vts?

[Bright]

I'm taking my saxo vts abroad in a few weeks and will be doing alot of driving in Germany on the autobahn. I'm just wondering if there is a recommended maximum cruise speed for a vts, as previous cars I've owned had a speed that shouldn't be exceeded for long periods. My old Clio 172 did many hours at 125mph happily but I don't think this will be true for the vts.

Fuel economy is not an issue, I'm more interested in mechanical limitations etc? Was planning on a speed of around 100-110 mph sustained for hours at a time?

Any advice or experience greatly appreciated.

Bright

[manta]

Warp speed is a guaranteed winner :)

[Manu]

floor it, you'll have to move on the slow lane anyway, for every porsche and BMW/mercedes/ skoda VRS etc that wants to go past. You'll be slow to them.

[rushy_23]

Depends on what revs the engine is at. I forget what 100mph is in 5th, but imagine it would be quite high. Over a long period of time you may notice your oil temp getting quite high.

[Jamie]

I thought this was going to be a proper n--b thread was about to chuck in a 125mph'er then realised what road your going on,

IMO 80-100 with occasional maxing out FTW lol

[0rang3peel]

I would say sitting at 100 in a vts should be fine

[Fulch]

floor it, you'll have to move on the slow lane anyway, for every porsche and BMW/mercedes/ skoda VRS etc that wants to go past. You'll be slow to them.

:y: or Ibiza FR

[craig180]

Good luck averaging high speeds in Germany for many hours.

Although there are thousands of miles of Autobhan, not all of them are unlimited.

[Yellow_Saxo_Paul]

Good luck averaging high speeds in Germany for many hours.

Although there are thousands of miles of Autobhan, not all of them are unlimited.

+1

Having lived there I know.

Plus if you do floor it on limited roads on autobahn then expect to be caught by a cop car. Then you'll have to pay on the spot otherwise you get took to the police station.

They are alot stricter over there then here. Good police force though with good laws because you are not allowed a single drop of alcohol if your driving.

[Barry123]

Good luck averaging high speeds in Germany for many hours.

Although there are thousands of miles of Autobhan, not all of them are unlimited.

and they come down strict has hell if you do break the speed limit on a non-derestricted road.

The car will be fine at a constant 110 mph.

[craig180]

Anyway, did I once remember someone stating that the TU engine, when developed was run at over the rev limit in both hot and cold conditions for a long period of time to test it's strength?

[Barry123]

Anyway, did I once remember someone stating that the TU engine, when developed was run at over the rev limit in both hot and cold conditions for a long period of time to test it's strength?

they would have done just part of validating the reliability of the engine, right at the development stage back in the day... then they can work backwards and determine a fail point.

Basically run the engine well well over the sensible limit - keep it going till something goes
run the engine again at a slightly lower engine speed - until it lets go
and again but lower still.

then extrapolate the data to determine a point where the engine will fail beyond x^8 revolutions at a sensible rpm and set the limit around that point. At the same time they'll also limit the rpm based on the power output and torque profile, since it'll far off quite rapidly past peak power.

So it'll last but the data is statistical at best, so what's actually going on is your increasing the chances of a premature failure, rather than running at a point which will definitely CAUSE failure.

[geordie_alex]

Should be fine 100-110 for long periods, you will have to stop for piss breaks etc and the car can cool down then.

[rushy_23]

Just to point out, I remember at FCS10 that people advised that hot engines require dropping down to second and then being ragged for optimum cooling.

[Cal]

they would have done just part of validating the reliability of the engine, right at the development stage back in the day... then they can work backwards and determine a fail point.

Basically run the engine well well over the sensible limit - keep it going till something goes
run the engine again at a slightly lower engine speed - until it lets go
and again but lower still.

then extrapolate the data to determine a point where the engine will fail beyond x^8 revolutions at a sensible rpm and set the limit around that point. At the same time they'll also limit the rpm based on the power output and torque profile, since it'll far off quite rapidly past peak power.

So it'll last but the data is statistical at best, so what's actually going on is your increasing the chances of a premature failure, rather than running at a point which will definitely CAUSE failure.*you're

Nice one poindexter x

[Barry123]

Just to point out, I remember at FCS10 that people advised that hot engines require dropping down to second and then being ragged for optimum cooling.

pahahaa!

*you're

Nice one poindexter x

bollocks.

[Raz]

Just to point out, I remember at FCS10 that people advised that hot engines require dropping down to second and then being ragged for optimum cooling.
LOL rushy...LOL

[makaveli144]

Rushys comment made me lol

[L20VTS]

should easily sit at 120 quite happily mine does without getting hot etc.

[Bright]

Thanks for all the replies lads. I have driven abroad and in Germany a few times. Im aware of the speed limits etc. The general feeling seems to be about 100-110mph so that's what I'll go with. Will keep checking to make sure everything is ok. There is some seriously fast machinery on the autobahns so il be watching my Mirrors don't worry!