Yoko Advans pressures
Discussion
hi All,
I have a Mk1 Elise running on Yoko Advan Neovas and was wondering what the recommended tyre pressures are? Recently car feels not quite as sure footed as before and wondering if I've got the pressures wrong. I usually run them at around 24psi on front and 27psi at the rear. Dampers & springs seem ok, wheel alignment checks out so wondering where to look next!
Many thanks in advance,
I have a Mk1 Elise running on Yoko Advan Neovas and was wondering what the recommended tyre pressures are? Recently car feels not quite as sure footed as before and wondering if I've got the pressures wrong. I usually run them at around 24psi on front and 27psi at the rear. Dampers & springs seem ok, wheel alignment checks out so wondering where to look next!
Many thanks in advance,
The advan neova's are the recommended road tyre for the S1 - not the same as the AD07's for the S2. Popular opinion seems to be that they are the best all round tyre for the S1. The pressures you mention are a little harder than some people run, but that seems unlikely to be the source of the problem. That said, check that they are fitted properly and weer balance properly as well. Also, if the tyres are new, they do take a while to bed in properly.
There are a few other things to check:
1) The shocks - what are you running? Are there any leaks from the shocks? Are they original koni's?
2) Have you hit anything (eg pothole etc) that could have damaged a suspension component. Presumably if the tracking is OK (properly checked? or are you saying this because of steering feel etc), they checked the rest of the suspension. Important to see you don't have a bent wishbone etc.
3) The geo - makes a world of difference if it is correctly set.
There are a few other things to check:
1) The shocks - what are you running? Are there any leaks from the shocks? Are they original koni's?
2) Have you hit anything (eg pothole etc) that could have damaged a suspension component. Presumably if the tracking is OK (properly checked? or are you saying this because of steering feel etc), they checked the rest of the suspension. Important to see you don't have a bent wishbone etc.
3) The geo - makes a world of difference if it is correctly set.
You're running them too hard. The manual says use those pressures but in practise they are better at around 22/23 front, and 25/26 rear.
You don't mention if you've just had them fitted, or if they've been on a while. If new, they will be a bit 'slidy' before they bed in, but dropping a psi or two will improve things greatly. Changing pressure and playing costs nowt and can reap huge benefit.
If you've had them on a while and things have changed, as other have said you should first have the shocks checked (to see if they need replacement), and then get it geo'd by a reputable place for the use you prefer.
You don't mention if you've just had them fitted, or if they've been on a while. If new, they will be a bit 'slidy' before they bed in, but dropping a psi or two will improve things greatly. Changing pressure and playing costs nowt and can reap huge benefit.
If you've had them on a while and things have changed, as other have said you should first have the shocks checked (to see if they need replacement), and then get it geo'd by a reputable place for the use you prefer.
Many thanks for all the info.
Have had the various suspension components already checked, and all appears to be fine. Dampers and springs were replaced last year with the Mk2 units and the geometry set up then. Its only recently that I've noticed a change. Basically, the back grips superbly but it is exhibiting more understeer than previously and just not as sharp under turn-in. Car feels pretty well balanced all in all, its just that sharpness that's lacking. Perhaps I'm being picky?! The only slight suspension issue is what appears to be a dry o/s/r toe link bush as it creaks a bit when it's hot, but can't see how that would affect the front end.
I'll try running them a bit softer though and see what happens!
Thanks all
Have had the various suspension components already checked, and all appears to be fine. Dampers and springs were replaced last year with the Mk2 units and the geometry set up then. Its only recently that I've noticed a change. Basically, the back grips superbly but it is exhibiting more understeer than previously and just not as sharp under turn-in. Car feels pretty well balanced all in all, its just that sharpness that's lacking. Perhaps I'm being picky?! The only slight suspension issue is what appears to be a dry o/s/r toe link bush as it creaks a bit when it's hot, but can't see how that would affect the front end.
I'll try running them a bit softer though and see what happens!
Thanks all
That would tie in with your fronts being a bit hard - soften them off gradually and see how you go.
On the S2 suspension mine seems a little more understeery on really tight stuff like mini roundabouts (perhaps due to the higher spring rates?) but it's so much better everywhere else that I'm not fussed.
On the S2 suspension mine seems a little more understeery on really tight stuff like mini roundabouts (perhaps due to the higher spring rates?) but it's so much better everywhere else that I'm not fussed.
I have found that even a change of half a PSI has quite an effect at the front. Also, don't forget that as the weather warms up your pressures will increase; can't remember if that's Boyle's Law or Gas Law?? The front of the car is also very light so minor changes in pressure make large change in footprint.
Drop them about 0.5 PSI at a time, drive a favourite route and see how you go.
Drop them about 0.5 PSI at a time, drive a favourite route and see how you go.
Hi all,
A quick update. Hadn't had the chance to try anything until the weekend
but dropping the tyre pressures to 22 front and 26 rear seems to have sorted it! Gave it a good blast round some well known roads... 
Back to what it used to be so many thanks to those who suggested the alternative figures! 
A quick update. Hadn't had the chance to try anything until the weekend
but dropping the tyre pressures to 22 front and 26 rear seems to have sorted it! Gave it a good blast round some well known roads... Back to what it used to be so many thanks to those who suggested the alternative figures! 
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