Tyre pressures....what a difference!

[NeilC]

your gonna luv this - not... nope def 26rear n 28 front, also tyres as was when bought n are infinity on front, federal n maxxis on rear. Me thinks i know even less than i thought aaagghhhh

[Wabbitkilla]

your gonna love this - not... nope def 26rear n 28 front, also tyres as was when bought n are infinity on front, federal n maxxis on rear. Me thinks i know even less than i thought aaagghhhh

Um   s:oops: :oops: s:oops:  

Mixed tyres on the 2 is bad doodoo ... but not impossible.
No name ditch finders are extremely bad doodoo!

Your pressures are way off ... remember the engine is at the back and therefore so is the majority of the weight!
What tyre sizes are you running?

I'm thinking you need to look at trying 26 front and 36 back then adjust till you find the best combination.

[NeilC]

185/55r1582v on front and 205/50r1586v on rear, oh hell !!!  must adjust asap,,  ta for advice, us newbies must drive u nuts lol

[dcod]

us newbies must drive u nuts lol

I did my best ... and still trying   s:D s:D

[xsarahx]

Mine are 26 front 32 rear, it once came back to me from a garage with 34 front and 29 rear, like someone said previously when you are used to driving a '2 you can tell when they are over or under by the handling.

[Dac]

You'd be surprised how they will change over 4 months or so. A brand new tyre can lose 4 PSI in that time quite easily not to mention the change in temperatures from Summer to Winter.

[iPap]

You'd be surprised how they will change over 4 months or so. A brand new tyre can lose 4 PSI in that time quite easily not to mention the change in temperatures from Summer to Winter.

I check mine weekly or more often, you'd be surprised what fast cornering does to pressures!

[PeteT]

You'd be surprised how they will change over 4 months or so. A brand new tyre can lose 4 PSI in that time quite easily not to mention the change in temperatures from Summer to Winter.

I have a tpms and i am seeing the psi dropping in the mornings with the colder weather. So check your tyres!

[Dac]

This is exactly the reason why they use Nitrogen in high performance cars because it's volume changes less with temperature.

[Bernie]

Mine are 26 front 32 rear, it once came back to me from a garage with 34 front and 29 rear, like someone said previously when you are used to driving a '2 you can tell when they are over or under by the handling.

Ditto as handbook, its in there for a reason !

2psi more makes a hell of a difference, for the worse, on the handling for me

[NeilC]

put 26 in front n 34 in rear just as a tester, seems ok, ta all for help !!!!

[kentsmudger]

This is exactly the reason why they use Nitrogen in high performance cars because it's volume changes less with temperature.

I never did find out how they get rid of the air already in the tyre when they do this at the local Kwik Fit...

[2 of the left]

Toyo TR1 Front 26   Rear 32 as per the manual!!

[Wabbitkilla]

Toyo TR1 Front 26   Rear 32 as per the manual!!

With the Toyos you might want to increase the rears to 36 ... you will notice a difference you might like   s:wink: :wink: s:wink:

[markiii]

This is exactly the reason why they use Nitrogen in high performance cars because it's volume changes less with temperature.

I never did find out how they get rid of the air already in the tyre when they do this at the local Kwik Fit...

short answer they don't


in my experience its still worthwhile, but its not giving you 100% of the benefit, and there is an argument that any benefit is so small you won't notice it.

For me at £1 per tyre, why not

[jonty]

some wheels have twin valves so you can purge fully- such as 949 racing 6UL (IIRC) as the autocross chaps in the states are keen on this.

CO^2 is also used by some race teams- that was one of the 'secrets' that McLaren had procurred from Ferrari in the spying scandal

[2 of the left]

Toyo TR1 Front 26   Rear 32 as per the manual!!

With the Toyos you might want to increase the rears to 36 ... you will notice a difference you might like   s:wink: :wink: s:wink:

I'll give it a go

[2 of the left]

Have upped the psi's now have 27 up front - 36 at rear - a definite difference for the better!! Thanks Wabbitkiller!

[Mr_Dav]

Hi all,

Thought I might post this here rather than start a new thread as its pressure related.

Just wondered what you guys thought the idea of me purposely changing my pressures. I'm about to embark the long (ish) xmas journey up north and will be spending a pleasant / boring 5 hours predominantly on the motorway. sigh.

Anyway, I normally keep my tyres at 26 front and 32 rear (bridgestones) as recommended by the handbook and you, and I was just wondering whether upping the pressures will provide a more noticeable economic journey. I was tempting to maybe go 30 front and 36 rear, just as an experiment, as I know you can give up a lot efficiency to the road with less pressures. The journey is for transport only only and I wont be hammering around corners or testing the 2's capability to handle.

Few points:-
1. Am I mad?   s:) s:)  
2. Has anyone else done anything similar for long tedious runs?
3. Its not like I'm desperate for cash, just curious whether the experiment works/ or is even worth it.

Over to you .....

[mrzwei]

Because you are keeping the pressure stagger and it's not a massive change then I would not see a problem.
You really need some form of control though to measure any difference in fuel consumption

[ChrisGB]

You might save a tiny bit of fuel, but you will also start up an uneven wear pattern on the tyres, so most likely will end up not actually saving any money. Meanwhile the car will be harsh to drive and possibly more affected by crosswinds. If the worst happens and you need to take urgent avoiding action, your car may not respond as it should. IMO, not worth it.

Chris

[Mr_Dav]

Well, I did it.

If anything, my tires now feel more 'twitchy'. Definitely slippy cornering and feels like Im on ice when cornering generally!

[Mr_Dav]

Well, I did it.

If anything, my tires now feel more 'twitchy'. Definitely slippy cornering and feels like Im on ice when cornering generally!

[Chris H]

So Good,......he had to say it twice..........  s:lol: :lol: s:lol:    s:lol: :lol: s:lol:    s:lol: :lol: s:lol:    s:lol: :lol: s:lol:

[woolleydick]

Mine arrived from uk with 38 all round - not a good setup especially as our roads are either potholed nightmares or skidpan slicks.
Now corrected.