P 38 Tyres

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stuartphantom

New Member
Posts
10
Location
Farnham- Surrey
I have a P 38 4.6 fitted with Pirelli Scorpion 255 55 18 109V Extra load tyres.

I find these tramline and wondered if anyone could recomend another make of tyre. I rarely, if ever go off road.

The P38 is fitted with bilstein dampers and a rear anti roll bar.
 
Don't know if you'll find a tyre which will totally cure that, seems more of a charateristic of the vehicle itself.

Having said that Goodyear Wranglers are a popular fitment too so you might want to try those.
 
Thanks for the recomendation.

By the sounds of it, the P38 is a little prone to tramlining. That is useful to know as i am quite interested in sticking to Extra Load tyres and not all other makes may be XL. Therefore may be i have to go with the P Scorpions again.


Tramlining: Also affected by the white lines in the centre of the road. Very much like old Cross Ply tyres.
 
I got 18" wheels and i consider my tramlining as very bad. Also with the rear anti roll bar, it almost appears as if the body sways. May be i now have too much anti roll bar.
 
Hello all,

My P38 had 18 inch Goodyear wranglers all around. I recently replaced the front with Avon Ranger Sport. These have transformed the car. Tramlining is far less pronounced. The tyres cost £104 each fitted from tyreshopper.com.

Steve B
 
Thanks Steve B,

Now that is the sort of response i need. Someone that has a positive alternative and comaprison. For me the cost is not an issue if the ride quality is improved.
 
Tramlining:
I'm assuming a right hand drive car here. Imagine you are going around a left hand bend and want to cut the apex of a bend, so you approach the bend with your wheels close to the white line on the right side of your lane and you plan to 'cut' the apex by moving across to the verge at the left side of your lane before moving out to the outside of the lane on the exit of the bend. When you tramline the car follows the curve of the road instead of cutting the bend as you tried to steer it. You apply what you think is enough steering lock to do it but nothing happens so you have steer more to get it to move but now you have too much lock on and have to un wind again to make your apex. Now I'm not talking tyre smoking understeer here, the car just follows 'ruts' in the road until you apply extra steering angle to get them through it.
A similar experience is found as described above where you are driving along the inside lane in the undulations (ruts) left by HGV's and you try to change lane but you find you have to steer more lock than you expected to get it to begin moving and then have to wind that lock off again as soon as it stops tramlining.
Certain tyres suffer worse from tramlining than others, normally there is a trade off between off-road grip, road handling characteristics, tyre wear and road noise. You need to try different tyres to find what suits your driving.
 
Hi
Have you thought about the same tyres that are fitted to later Rangies? These are 255/60/18 as against 255/55/18 on P38's. I have them on mine and found they transformed the ride (compared to the (very worn) Pirelli's that were on previously) due to the slight increase in section. They're expensive if you buy them from a normal supplier but I got mine from Ebay complete with brand new wheels for £500. If you get these, you'll need spigots and new nuts as well but these can be bought on Ebay also. They alter the gearing slightly but they ride extremely well and look good too. Worth a thought.
Good luck
Derek
 
Hello all.

Just an update.

I have just driven around 500 miles 300 of them towing a heavy caravan.

The Avons have totally transformed the handling of the car both solo and towing. They are a far better tyre than the goodyear. I'll soon be fitting two to the rear.

all the best

steve
 
Have you tried altering your tyre pressures?

Daft as it may sound just a couple of psi can make a difference, but I have found that tramlinig and bump steer are worse proportional to the aspect ratio of the tyre, which is to say the lower the profile the worse it seems to be. If you lower the tyre pressure you get get slightly more flex in the tyre wall and a correspondingly more compliant ride. The trade off is slightly less feel, but unless you are a precision kind of driver it makes b all difference running a few less psi.

Hope that helps.
 
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