Speedtrip Posted June 7, 2018 Share Posted June 7, 2018 I'm finding the ride very hard and jittery in my 360R. The cars currently only being used on the road. I appreciate I probably need to get it flat-floored to to make the most of it but I'm wondering if lower tyre pressures might help in the short term. Currently running 21psi cold which seems to give around 22psi after a run on 6"/8" Apollos.Any suggestions? Link to comment Share on other sites More sharing options...
anthonym Posted June 8, 2018 Share Posted June 8, 2018 I run 18psi in my 13" CR500s (1.2 bar)A pyrometer will assist in working out your ideal pressures.. Link to comment Share on other sites More sharing options...
L7 FST Posted June 8, 2018 Share Posted June 8, 2018 You could certainly come down 3 or 4 pounds but I doubt that will have a transformative effect on the ride. Likewise flat flooring probably won’t make a vast difference on the road, unless of course the settings are badly out at present. You might, however, like the noticeably more compliant ride you’d get from a slightly taller profile tyre, eg the Toyo R888R. Link to comment Share on other sites More sharing options...
Simon.Rogers Posted June 8, 2018 Share Posted June 8, 2018 Softer spring needed.The regular cars have been getting heavier springs in recent years I have noticed. Link to comment Share on other sites More sharing options...
prangerman Posted June 8, 2018 Share Posted June 8, 2018 For road use I run ZZSs at 17.5 psi and never more than 18 psi or the ride becomes much too hard. (R300K on Nitrons.) Peter Link to comment Share on other sites More sharing options...
CycleSi Posted June 8, 2018 Share Posted June 8, 2018 Not much help I know, but after extensive testing on track days I find the ZZS's work best at 24psi hot.Whereas on the road I find 18psi cold is ideal. Link to comment Share on other sites More sharing options...
Mark w Posted June 8, 2018 Share Posted June 8, 2018 Based on a bit of personal experience I have a gut feeling that the ZZR and possibly the ZZS tyres have stiffer sidewalls than others such as the ( old ) CR500 .Personally i prefer the steering feel this provides but there is possibly a price to pay in comfort .That said a Caterham will never ride like a Roller . Link to comment Share on other sites More sharing options...
Speedtrip Posted June 9, 2018 Author Share Posted June 9, 2018 Thanks guys. I'll give lower pressures a go and see how she feels.I guess long term different springs and dampers may be the best option. Something more touring oriented but still with track ability would good (I really need to take the plunge and do my first track day!) Link to comment Share on other sites More sharing options...
Gary Stone Posted June 12, 2018 Share Posted June 12, 2018 Same as Prangerman Pete. 17.5 no more than 18psi. Iv'e found thats what gives me even tyre wear. Plus like Pete I have Nitrons which have adjustable damping which is what will give you a softer ride. Link to comment Share on other sites More sharing options...
Sussex Mid AR Posted June 13, 2018 Share Posted June 13, 2018 21 cold seems too high to me, maybe 17 or 18 but use that as a starting point and experiment yourself. Once you’re happy use that all the time, always measure with the same gauge too since I doubt every one is made equal.ZZx tyres are bumpy on road, for a more complaint experience, move back to CR500 just like I did.Julian Link to comment Share on other sites More sharing options...
SteWi Posted June 14, 2018 Share Posted June 14, 2018 After reading a post on this topic I tried 24psi hot at Blyton and found myself going backwards on a couple of occasions. Dropped back to 18psi for the remainder of the day without any further problems. I'm now running 18psi cold on the road and 18psi hot at Caldwell on Tuesday where the car felt great. Link to comment Share on other sites More sharing options...
chkbrk Posted July 6, 2018 Share Posted July 6, 2018 My 1400 SS is very 'bumpy' and uncomfortable. Happened twice and it was the rear damper. One time it was seized, the second time no damping resistance.Next problem is seeing who has one in stock.Mike Link to comment Share on other sites More sharing options...
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