Cup Tire PSI

[cupdriver]

Hello fellow clio drivers

I have after many years of company car driving returned to the world of HOTHATCH. I have got myself a 6 month old CUP mint condition. Lovely Motor. scares the misses.



After recently checking the tires pressure I have discovered there in the low 20sPSI, the max on the tire is 51. what do you guys run on the standard tires



Cheers

 

[RobFenn]

Whats that in bar?

 

[Griff]

I was told 2.7 bar front and 2.2 bar rear by the guys running the renault track days.

 

[cupdriver]

Using a converter, http://www.funsupply.com/airguns/psibar.htmlhttp://www.funsupply.com/airguns/psibar.html

23 psi is 1.585

 

[Chad]

i normally run 35 all round

 

[RobFenn]

Well for trackdays i guess an extra few psi should be put in because of the cornering loads. My car weighs a bit less than a Cup (i think) and i have 2.2 at the front and 2.0 at the back.

-Rob

 

[RobFenn]

Quote: Originally posted by cupdriver on 20 June 2003


Using a converter, http://www.funsupply.com/airguns/psibar.htmlhttp://www.funsupply.com/airguns/psibar.html

23 psi is 1.585

f**k! Your lucky your tyres havent gone pop!

 

[cupdriver]

Quote: Originally posted by griff_90 on 20 June 2003

I was told 2.7 bar front and 2.2 bar rear by the guys running the renault track days.

Cool, works out at 39 upfront and 32 rear.

Cheers guys!

 

[telford_mike]

Thats a bit high for the road and itll wear the middle of the tread. 32 front 30 rear or a tad above this is closer.

 

[RobFenn]

Could try checking your owners manual!

 

[cupdriver]

Quote: Originally posted by RobFenn on 20 June 2003

Could try checking your owners manual!

Even though my car was bought from a UK dealermy manual is in German.

 

[telford_mike]

Quote: Originally posted by RobFenn on 20 June 2003

Could try checking your owners manual!

Noooooo, if people start doing that the forum will be dead within a week

 

[philip]

39 Lol youll be bouncing around like skippy...

I run 35F 33R

recommended is 34/32

tried 37F once and the understeer was fun.

 

[RobFenn]

lol

nice try cupdriver but the germans dont write numbers differently, last time i checked, im sure you can work it out.

 

[Griff]

Manual says....

"Normal use - 2.3 front and 2.1 back"

"Motorway use - 2.7 front and 2.3 back"

 

[philip]

well, I myself get a number 1 front and back ...

 

[cupdriver]

Quote: Originally posted by RobFenn on 20 June 2003


lol

nice try cupdriver but the germans dont write numbers differently, last time i checked, im sure you can work it out.

True true. I am a bit lazy, thought its german, wont bother looking.

Also used it as an excuss to join the Clio community

 

[pep87]

I find it best to run a bit higher if you do any track days!!!!

 

[TB11]

2.7 bar?!!!!!!!!!!!!!

Put it this way, my car runs at 1.2 bar which is around 18psi, if your running 2.8 bar (its .065 btw) then your looking at some stupid figure (possably into the 40psi range) which is not what you want unless you need serious oversteer.

30 psi was around the right value for my 306 gti, 30 - 34 is around the right value for my subaru, much more and your in tree land!

Tony

 

[TB11]

2.7 bar = 41.5psi, 2.2 bar =34psi.

Far too much for a road car on the road without putting it in a ditch.

Tony

 

[swelch]

Ive played around with tyre pressures on my cup and foung the following best for road use:

Front:- 35psi / Rear:- 31psi

If you put anymore in the front you will suffer from wheelspin in 1st all the time when you hit 4k rpm.

With the above settings you should be able to have lots of fun and if you feed the throttle in right in 1st you can get it to the floor to 7k rmp and hit it nice and high in 2nd for a brill pull to the other side of 60 Mph.

This will give nice sharp handling, a little lift off oversteer when carry allot of speed around corners and not too twitchy a drive in the wet.

Hope this helps

 

[Griff]

Quote: Originally posted by TB11 on 21 June 2003


2.7 bar = 41.5psi, 2.2 bar =34psi.

Far too much for a road car on the road without putting it in a ditch.

Tony

Dont think so! Check your maths....

 

[papa?]

Quote: Originally posted by Chad on 20 June 2003

i normally run 35 all round

35PSI all round???? How much does ur car weigh then??? Surely with that preasure ull loose grip as the tyres wont flex as much and the ride will be a damn site harder...

 

[papa?]

Ok I read on further now.... Do all Clios run high preasures?

I *cough cough* know someone with a Diesel Estate and that runs about 29 to 30 PSI...

 

[TB11]

Griff, there is nothing wrong with my calculations ta, try it, its 2.7 (as in bar) divided by .065, the anwer = 41.5 (which is the PSI).

2.3 divided by .065 =35.3 psi.

Those pressures are waaaaaaaaaay too much for a road car, and if you check your tyres, you will actually see that you have a max PSI figure (it should be 44psi as ive checked both my cars ).

35f and 33r psi is probably more like it.

Tony

 

[Griff]

14.5psi per 1bar.

2.7 = 39 not 41.5 (not much difference I know )