Launch technique?

Systems no doubt vary, but they all have a cut-off point below which they do nothing. The lower that point, the more the engine will bog. It's all down to how much bogging they think drivers will live with. My Saab allows loads of wheelspin "to retain the feeling of sportiness". I'd much rather it allowed a bit less to retain the feeling of acceleration!

Indeed.

Not forgetting, of course that *all* systems have to allow *some* wheelspin.

Cheers,

Colin.

Reply to
Colin Stamp
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If I nail mine from a standing start it allows just enough slip to stop it from bogging down.

Brake kills inertia - by converting the stored energy to heat.

Racelogic is the way - mate was getting it for his supra but is now selling the supra - you fancy it? it's an auto with >400 bhp at the back wheels, that's in its current, nitrous free state...

Reply to
Tim S Kemp

Yup, it'll also depend on the power delivery. Plenty of turbodiesels seem to get lumbered with petrol-optimised traction control systems that can't cope with a 2,500 rpm launch. The turbocharger spools up to full boost, you get wheelspin for a moment then it just shuts down and you kinda stop. :)

Or you get more and more and more wheelspin...

And other considerations too.

And reduce the tyre wear? :)

Actually it may do that so that it'll work in the snow.

Depending on your definition of course. :)

Reply to
DervMan

Once its worked out its happening, then the wait untill the brakes come on...

No, wheelchair means access probs now or probably yes!!!

Reply to
Burgermans other computer

The evidence so far confirms that someone merely having a differing opinion to you is enough to be regarded by you as an insult.

It's not funny any more.

Reply to
JackH

why didnt ford let u have the 1.25 zetec in the ka? shame I think

Reply to
Theo

WANKER

Reply to
Theo

Not that I can think of ? But I guess I probably have ?

I jump in the car in the morning, and drive to work. I aren't stationary until I stop in the work carpark. The same applies in reverse, on the way home. Except I have to stop and wait for a gap to leave the work carpark. So if I pulled out into the 30mph traffic at full-bore, I'd smack right into the guy infront.

Thinking about it, the only time I'm ever stationary in my car, is when I enter a built-up area, and have to stop at traffic lights (not very often !). In which case, there's always other cars infront of me etc. so as above, full bore starts would result in tail-end crashes. I suppose I'm stationary sometimes if I'm pulling out of a T-junction, but then you can't really do a hardcore launch round a 90 degree bend, with

200bhp and FWD. It would just result in a big disaster :)

Unless you're at the drag strip, when do *you* do full-bore starts in York traffic ?

Yep. Let's say you do some full-on start, everytime you stop your car on an A to B journey. Say it reduces your total journey time by about 5 seconds in total. What's the point ? The amount of wear to my (VERY EXPENSIVE) clutch, and not particularly expensive tyres, mean it's not exactly value-for-money :)

Reply to
Nom

Hmm, yes, but you might be missing the point.

Aye, but I didn't mean every day driving. All of my periods of full acceleration are from a rolling start and involve slip roads. :)

All I meant was that you've never been sitting at a quiet traffic light (such as the ones on the A64 on the approach to Scarborough) and thought, "bugger this I'm going for it when they hit green" or something?

Hehehe yes of course, but I didn't mean doing them during the drive to and from work. Only idiots ;) drive like this.

I reserve full acceleration (!) for slip roads and roundabouts.

Reply to
DervMan

Reply to
DanTXD

Rivets holding the friction material in place are a good start. I take it you've seen the remnants of an exploded clutch?

Reply to
Conor

Ask the companies that design the launch control for WRC cars.

Reply to
Conor

err... jack you have been insulting him pretty much every other post?

Reply to
REMUS

*slaps head* and yes the said company is going to divulge exactly how their patented launch control works to burgerman?
Reply to
REMUS

You may wish to try slapping your head a little harder. If it's patented, then it's in the public domain - that's the idea behind patents. The system was devised so information would be shared, rather than it being kept secret.

clive

Reply to
Clive George

Yes, I am !

There you go then. My periods of full acceleration are also always from a rolling start. That's what I was trying to say above. Rolling start launch technique : Floor it. The end.

You don't need to stop for them ! Just slow down, and when you get to them at 20mph or so, they turn green as soon as you cross the sensors in the road :)

Don't think so. I don't actually think I ever stop at "quiet traffic lights" - if it's quiet, then they're usually green (cos unless they're on some spacker timing system, then they don't go red unless there's other traffic to make them do so).

That's ok then :)

Me too, and both are almost always rolling starts.

Reply to
Nom

No, I meant that it is unlikely that they would just give out schematics on request to the general public and if they did probably only burgerman would be able to work out exactly how the damn thing worked. Plus every team probably has a different launch control module,

Reply to
REMUS

Well, don't use words like 'patented' when you don't know what they mean.

cheers, clive

Reply to
Clive George

I know exactly what patented means you friggin condescending arse, I was just stating that they are unlikely to give the information to any tom dick or harry that emails/calls requesting it no matter how tied up in government/law their own particular design is.

Reply to
REMUS

I certainly have, and the springs doing the shock absorbing in the centre, the flat metal part near the spline fail under serious loading, only changing down into say second or first at very high road speed wrecks the outside perimeter, and clutches are bonded not riveted nowadays unless you are talking about trucks!

Reply to
Burgerman

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