[RikoRocket]

Sorry Darren but you have the advantage of appreciating the decent levels of grip that you could get on the old classic track. New track is pants in comparison.
If you can get some rubber from the new range of cars - the Start type cars are good - that will fit your wheels then that will help, and then treat the tyres with some special oil from pendleslotracing and you will be back where you were in levels of grip.

 

[RikoRocket]

Oil does get absorbed by rubber, if you leave them in oil they will expand like mad.

I run very occasionally at Adrian Normans club Viking where they use silicones, and believe me you have to meticulously clean your tyres inbetween races or your grip levels are way off being competitive....

Spit seems to work on Ortmann tyres, oil on rubber and cleaning with sticky tape on silicones.

 

[RikoRocket]

Randy your link says WD-40 is oil! "The long-term active ingredient is a non-volatile, viscous oil which remains on the surface"

 

[RikoRocket]

Oh, I see you've clarified that on your first line now. I used it to good effect for a while, but as an engineer it seems to be anti-intuitive to use a lubricant to increase friction. But it works, oh boy does it work.

I know you are advocating using a different rubber compound but I have found that even the softest F15 slot it tyres are not as grippy as P4s with a good oiling. Softness is not everything (which again goes against my old beliefs) somehow the oiled rubber gets affininity to a rubbered in track and provides a level of grip that defies sense.

But WD-40 is not the best by any means and it can leave some horrible deposits that are hard to clean. I got my latest tyre treatment recipe from another club and it is magic stuff. But the ingredients are a secret and some parts are a touch volatile!

 

[RikoRocket]

QUOTE (slotcrazy @ 15 Nov 2011, 20:41) <{POST_SNAPBACK}>F15 would probably be quicker, but are that much hard to true perfectly,

I'll second that. Like trying to file a blancmange....

 

[RikoRocket]

I agree that the surface is fine if you are running the latest cars with loads of mag, but the thread started with Darren trying to understand why his old cars won't grip. Fundamentally the change of surface messes up racing all the pre-mag cars that were designed to run on classic track with its inherent grip characteristic...

QUOTE (darrenmcc @ 12 Nov 2011, 20:02) <{POST_SNAPBACK}>so i've got aload of cars from about 20years ago, and having recently purchased my first sport track, i've noticed most of my old cars cant seem to get an grip at all on the track. ive tried 2x le mans, 3x F1, some old escorts, and none are able to grip the sport track like the gripped the vintage track.
anyone got any idea's or types of tyres that suit F1, le mans, xr3i's etc to help them grip, or is there a different method?