Advice on Tyre Pressures

[AlanP56]

Guys

I have 'Gaz Gold' Shocks to my 2000 450 Chim......can anyone advise or recommended Tyre pressures please?. Standard TVR Wheels (original fitting) plus Dunlop SP SPT 9000 Tyres....I have been told to go 'as high' as 30F / 30R but this seems a lot. Use is as (reasonably) fast weekend car - no track days. Any help gratefully recieved.

Thanks Alan P

[MADMAX2]

24psi all round works for most people you dont want your tyres bouncing on the rims some others go 22psi but 24psi should be ok

[big geoff]

standard wheels road use front 26 rear 28

[K4TRV]

MADMAX2 said:

24psi all round works for most people you dont want your tyres bouncing on the rims some others go 22psi but 24psi should be ok

[haircutmike]

big geoff said:

standard wheels road use front 26 rear 28

I'm sure with tyres such as Toyos it should be 22/24.

[SpecB]

The owners manual for mine on standard 16/15s states 24/22.

[TJC46]

haircutmike said:

I'm sure with tyres such as Toyos it should be 22/24.

This

[peaktorque]

In the two years I've owned my Chim, I've never checked the tyre pressure (well maybe once before a track day). If they all look like they've got the same amount of air in then that's good enough for me

[PYNEY]

i found that 22f and 24r to soft for me and felt the car flex on the side wall of the tyre
when going round bends etc

i've now got 25f and 27 r and it feels more solid and dosen't have the flexing issue

[SpecB]

Found the same on a spirited drive last weekend. Good to know higher pressures aren't a problem.

[haircutmike]

Only experimented with higher pressures above 22/24 on track, result little grip!

Edited by haircutmike on Monday 19th March 12:51

[alexcurtis]

24 F and 26 R is what i found after some searching and happy with that comprimise, so far on Toyo Proxie R

[Dodsy]

alexcurtis said:

24 F and 26 R is what i found after some searching and happy with that comprimise, so far on Toyo Proxie R

Same here with SP9000 on the front and FK452's on the back - good pressure for everyday driving, although I do also use 23F and 25R so cant make my mind up which is best.

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alexcurtis said:

24 F and 26 R is what i found after some searching and happy with that comprimise, so far on Toyo Proxie R

I use this on SP9000's and find it to be the best for road use. Also the best for wear.

[AlanP56]

Guys

Thanks for the input - I have tried 24 / 26 and it does seem the best compromise - I was at 27 / 29 and the reduction in 'bouncing' is very noticeable plus it seems less liable to 'skitter' when I drive over 'road paint'. Many Thanks - Alan P

[Blues]

haircutmike said:

Only experimented with higher pressures above 22/24 on track, result little grip!

Edited by haircutmike on Monday 19th March 12:51

Hmmm
I do wonder about this. You increase the pressure, go out on track, really heat the tyres up (and therefore the air inside), which further increases the tyre pressure.

There is a school of thought that suggests that you reduce the tyre pressure by a couple of pounds for track days.

[haircutmike]

Blues said:

Hmmm
I do wonder about this. You increase the pressure, go out on track, really heat the tyres up (and therefore the air inside), which further increases the tyre pressure.

There is a school of thought that suggests that you reduce the tyre pressure by a couple of pounds for track days.

This was advuce in my early days taken from one of the T/D organisers.

Makes you wonder .