Rear end sliding out

[zcacogp]

ORIGINAL: 944 man

ORIGINAL: Outrun944

To close this off from my end anyway....

Should I consider switch the wheels over? And putting the new grippy tyres on the rear given it's rear wheel drive?

Is there an argument that you need as-much or more grip on front given when you break and the weight of the engine that's where all the force will be etc?

I am the antithesis of a PH tyre fascist, but I think it is obvious that you should buy two new tyres! You should also check your pressures regularly and read the road better.

I'm with 944man. Sorry. I suspect you won't be able to swap tyres from front to back as they will be different sizes, so that's not an option, but even if you could then you would then have mis-matched front tyres which is no better.

Stump up for some new tyres and check the pressures regularly. If it's a while since it was last done then check the geometry as well (I'm surprised that no-one has mentioned this yet.) The joy of a 944 is in it's handling and you are missing the point of the car if you aren't keeping the chassis (i.e. tyres, pressures and geometry) in good fettle. And that's before you start to consider the dangers to other people of a car which you are not in control of. If you hadn't avoided the accident with the biker then how would you feel? And how would you handled a short conversation with his wife?


Oli.

 

[kdp99p]

I do it just for fun

 

[MarkK]

New matching tyres on the rear,maybe at "unloaded" road pressures,bit of road awareness and it will all be lovely.

 

[944 man]

2.5l 8v cars (and 16v cars too) have 7" rims all round, so they can be rotated, but I will repeat my earlier advice. Buy new tyres, dont put tyres that youve already identified as being rubbish onto the steering/braking axle!

 

[Indi9xx]

When tyres go off with age and become hard, they can one day just hit a point where they come downright dangerous.

But at this time of year, the tyres are cold, the roads are cold and it is easy to find a localised patch of black ice even when the outside temperatures are above freezing.

I was once road (track, honest) tuning my old turbo and setting the boost up, which meant running power runs through 4th gear from 2000 rpm through to the red line. It was a December evening, above freezing, probably about 4 degrees outside, and on one of the power runs the car lost traction, lurched right towards armco before spinning left through about 4 complete turns and came to a standstill on the left of the road/track. Luckily I did not hit a thing, but it taught me that even though every other power run was without so much as a twitch, something on that patch of road was just so slippery compared with the previous 20 miles of power runs.

Its also why I hate doing any road tuning in winter, but you can not really get as good a tune on a dyno alone unless you have a great dyno, an infinite amount of time, and a wind tunnel rather than even massive fans.

I would say your issue could have been diesel, atf, cold roads, cold tyres, aged tyres or a combination of any of these reducing your grip to bellow your expected limits.

You might even have a rear suspension bush on the way out, which has given you a touch of rear wheel variable geometry (in a negative way!)