Slicks on track days
Discussion
Jeremyc-
Hmm I had heard that, I wonder if a 1/2 cage is enough? oh and a proper Safety devices jobbie, not one of those chav spec chrome things built out of toothpicks & covered in tinfoil
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Clubsport-
In truth I dont know, but all supension is new/uprated (i.e. springs/dampers/ARBs as are all the bushes, mounts etc & got a fully baffled sump, uprated engine mounts etc. So I guess the weak link maybe driveshafts/gearbox?
But I wonder, much more strain/grip on worn slicks than pukka roadlegal track tyres like Dunlop R's ?
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Melv- the Lizard is thinking-
1- Road tyres get eaten & don't grip much esp when hot
2- The price of pukka road legal track rubber like Dunlops R's etc is a bit pricey- like half the value of the car!
3- Used slicks are available very very cheaply & (mate got set of 4 for under the price of half a single new Dunlop R!) should have a good couple of track days left in them.
4- Ive still got the grin on my face after experienceing the grip yours gave at Coombe
Hmm I had heard that, I wonder if a 1/2 cage is enough? oh and a proper Safety devices jobbie, not one of those chav spec chrome things built out of toothpicks & covered in tinfoil
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Clubsport-
In truth I dont know, but all supension is new/uprated (i.e. springs/dampers/ARBs as are all the bushes, mounts etc & got a fully baffled sump, uprated engine mounts etc. So I guess the weak link maybe driveshafts/gearbox?
But I wonder, much more strain/grip on worn slicks than pukka roadlegal track tyres like Dunlop R's ?
------
Melv- the Lizard is thinking-
1- Road tyres get eaten & don't grip much esp when hot
2- The price of pukka road legal track rubber like Dunlops R's etc is a bit pricey- like half the value of the car!
3- Used slicks are available very very cheaply & (mate got set of 4 for under the price of half a single new Dunlop R!) should have a good couple of track days left in them.
4- Ive still got the grin on my face after experienceing the grip yours gave at Coombe
The load on the wheel bearings and uprights would be correspondingly higher. I'd want to check whether the standard parts are good for the increased loads, no doubt TMS and the other guys who have converted roadgoing TVRs to race trim would know. Since you'd get higher G forces you would probably want to change the suspension setup substantially to suit the extra grip.
saxo-stew said:
instead of going for full blown slicks,why not get a road legal slick like the avon acb10?
See reasons 2 & 3 above.
ACB10s are pretty much the same price as all the other road legal track tyres & I perhaps wouldnt have put them 1st choice in that lot, although I spoke to a chap today who might be able to get some at the right price...
Guessing given your login name you are running them on a Saxo? how do you find the wear on the fronts?
slicks can kill a road car.
things like all your oil trying to live on one side of the engine and when it cant find space it escapes to the outside world.
chassis twist causing windscreens to pop out or crack.
suspension bushes get shredded.
cracks in chassis due to metal fatigue.
because of the increase in grip when you do get it wrong and go off you go off much faster and its much worse..
i did a couple of trakdays in a saph cos on slicks
and had i not sorted the car before hand(oil system mods,rose jointed suspension,better brake cooling,propper seats and harness,+cage that went to suspension pick up points)i recon it would have ended up like my mates car that died on its first session on slicks.
slicks are hard work for any car
things like all your oil trying to live on one side of the engine and when it cant find space it escapes to the outside world.
chassis twist causing windscreens to pop out or crack.
suspension bushes get shredded.
cracks in chassis due to metal fatigue.
because of the increase in grip when you do get it wrong and go off you go off much faster and its much worse..
i did a couple of trakdays in a saph cos on slicks
and had i not sorted the car before hand(oil system mods,rose jointed suspension,better brake cooling,propper seats and harness,+cage that went to suspension pick up points)i recon it would have ended up like my mates car that died on its first session on slicks.
slicks are hard work for any car
try www.bmtr.co.uk i got 5 acb10's from them in a sale,they were in total,£350 to my door. thats as cheap as some decent road tyres.
yes,i have a saxo vts. front wear really depends on my right foot and how fast i decide to corner. even on road tyres,that pretty fast and wear isnt too bad.
chassis twist causing windscreens to pop out or crack. -i have a safety devices roll cage, no chassis flex.
suspension bushes get shredded. -i have grp n solid bushes all round.including some metal bushes(good vibrations)
cracks in chassis due to metal fatigue. -as above.
i did a couple of trakdays in a saph cos on slicks
and had i not sorted the car before hand(oil system mods,rose jointed suspension,better brake cooling,propper seats and harness,+cage that went to suspension pick up points)i recon it would have ended up like my mates car that died on its first session on slicks. - sounds expensive
slicks are hard work for any car - thats the plan
yes,i have a saxo vts. front wear really depends on my right foot and how fast i decide to corner. even on road tyres,that pretty fast and wear isnt too bad.
chassis twist causing windscreens to pop out or crack. -i have a safety devices roll cage, no chassis flex.
suspension bushes get shredded. -i have grp n solid bushes all round.including some metal bushes(good vibrations
) cracks in chassis due to metal fatigue. -as above.
i did a couple of trakdays in a saph cos on slicks
and had i not sorted the car before hand(oil system mods,rose jointed suspension,better brake cooling,propper seats and harness,+cage that went to suspension pick up points)i recon it would have ended up like my mates car that died on its first session on slicks. - sounds expensive
slicks are hard work for any car - thats the plan
accident said:
slicks can kill a road car.
things like all your oil trying to live on one side of the engine and when it cant find space it escapes to the outside world.
chassis twist causing windscreens to pop out or crack.
suspension bushes get shredded.
cracks in chassis due to metal fatigue.
because of the increase in grip when you do get it wrong and go off you go off much faster and its much worse..
i did a couple of trakdays in a saph cos on slicks
and had i not sorted the car before hand(oil system mods,rose jointed suspension,better brake cooling,propper seats and harness,+cage that went to suspension pick up points)i recon it would have ended up like my mates car that died on its first session on slicks.
slicks are hard work for any car
Cerbera with moded suspension - 650/600lb springs, adjustable Ohlins, brake cooling, differential cooling bigger APs but no engine mods ran for 3 years at more than 40 track days on slicks.
It was .........emotional.
GreenV8S said:
Cerbera with moded suspension - 650/600lb springs, adjustable Ohlins, brake cooling, differential cooling bigger APs but no engine mods ran for 3 years at more than 40 track days on slicks.
Could I ask what you did for diff cooling?
Joolz description is correct except it was Mike at Magic Castle, near Gatwick. Nice folks.
ask yourself why someone is selling used slicks? you really need to know what you're buying before you just buy some tyres that have no tread. Although they all look the same, they're not and they don't all behave the same when they got too hot/go off, etc.
caveat emptor.
I was under the impression that some t/day organisers are banning slicks unless your in a race car, similar to the reasons mentioned before?
Seperate subject. Currently got a porsche 964RS but want something that I can cane and can stand an impact better than the porker. Caterham perhaps? Suggestions welcome. Also, it's quick, but not proper fast. I think lightweight is the way forward?
caveat emptor.
I was under the impression that some t/day organisers are banning slicks unless your in a race car, similar to the reasons mentioned before?
Seperate subject. Currently got a porsche 964RS but want something that I can cane and can stand an impact better than the porker. Caterham perhaps? Suggestions welcome. Also, it's quick, but not proper fast. I think lightweight is the way forward?
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