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Spiky

R888 Tyre Pressures

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Spiky

ok, done a few track days on them

 

but feel i not quite got the right tyres pressures

 

i run between 22-24 on the front and 24-26 on the rear

 

 

any helpful advice on pressures would be great :)

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smighall

I generally run about 24 all round cold. I just try and keep them at ~30 when hot so adjust after coming in from a session.

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Spiky

can i assume you check them when hot after coming,

 

then adjust them when cold???? or do you adjust them hot too?

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blackscooby

I run something like NSF at 22PSI OSF 24PSI

NSR and OSR at 26.

 

Check immediately after coming in after first session and adjust ALL to 30PSI (HOT).

Seem to be OK at that.... Feels very strange initially when going on when on cold tyres. Feels to have lots of roll into bends, but a bit of overly hard braking (where safe to do so.. officer) and harsh acceleration out of bends soon gets them up to temp.

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Spiky

ok will try that next time

 

 

 

what about wet track days??? same pressures??????

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smighall

I just always try and keep them at 30. So when you come in, check the pressures and adjust. You start to get a gut feeling about what will be right when cold.

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Spiky

thanks for the info guys :)

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B1ack_Mi16

I can just add one thing, Peugeot Sport 206 Cup cars that was a league running in Norway some years back, told me to run 15PSI in the Bridgestone RE540 semi slick tyres, almost same as R888 I would guess, at least if you were aiming for the best lap times. The sidewalls are usually pretty hard on the semi slick tires so they can handle less pressure which probably give better grip.

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petert

I use 26-27 front and 30-31 rear cold, so when hot they max at 34 all round. Variations side to side depend on whether clockwise or counter-clockwise circuits.

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projectpug

I have been using 24 PSI all round seems to be good

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Spiky

well at donnington yesterday, i put 24 in the front and 26 in the rear

 

when i came in they were all 30

 

i had a touch of roll, but i think it's down the the std suspension,

 

when i fit my bilsteins, and attend bedford in feb, i'm hoping this will go

 

but still managed 105 down the craner curves, which i thought was ok.

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tom_m
but still managed 105 down the craner curves, which i thought was ok.

 

lol i'm not looking at the speedo when i'm going down the craner curves i'm looking for the breaking point at the old hairpin! made it into 5th a couple of times, but no idea how fast i was going at the time :lol:

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Spiky
lol i'm not looking at the speedo when i'm going down the craner curves i'm looking for the breaking point at the old hairpin! made it into 5th a couple of times, but no idea how fast i was going at the time :(

 

 

my suspension is a bit soft to got any fast,

 

7500 in 4th in mine is around 120, std 1.6 and gti-6 engine

 

not sure i fancy the extra 15mph...lol

 

will see with next years setup :lol:

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