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Tyre pressure

57K views 26 replies 18 participants last post by  Shaggy2010 
#1 ·
Ideal tyre pressures for Corsa C (2003). Thanks.
 
#6 ·
38 at the front | 35 at the back

you are suppose to have a higher inflation on the tyres at the front due to the weight of the engine.

my car is a 1.8 though so im assuming for a smaller engine it might be less
 
#19 ·
Cold tyre pressures for a 1.2

Normal Load is 32psi at the front and 26psi at the rear

Fully laden is 35psi at the front and 41psi at the rear
That. Although I always do the backs at 28PSI, the ride feels nicer than at 26.
 
#9 ·
from the faq

What pressure should my tyres be?
Engine - Z10XEP ECO
Tyres - 155/80 R 13 - For Winter Months only
Inflation With upto 3 Persons - F 35 R 35
Inflation With full load - F 39 R 44

Tyres - 175/65 R 14 - Pressures For Economical Driving
Inflation With upto 3 Persons - F 39 R 36
Inflation With full load - F 39 R 44

Tyres - 175/65 R 14 - Pressures For Comfort Driving
Inflation With upto 3 Persons - F 35 R 35
Inflation With full load - F 39 R 44

Engine - Z10XEP, Z12XEP
Tyres - 155/80 R 13, 175/65 R14, 185/55 R15, 195/45 R16
Inflation With upto 3 Persons - F 32 R 26
Inflation With full load - F 35 R 41

Engine - Z14XE
Tyres - 175/65 R14, 185/55 R15
Inflation With upto 3 Persons - F 33 R 30
Inflation With full load - F 35 R 41

Tyres - 195/45 R16, 205/40 R17
Inflation With upto 3 Persons - F 33 R 30
Inflation With full load - F 38 R 44

Engine - Z14XEP
Tyres - 175/65 R 14, 185/55 R15, 195/45 R16
Inflation With upto 3 Persons - F 33 R 30
Inflation With full load - F 35 R 41

Engine - Z18XE
Tyres - 175/65 R14*, 185/55 R15 (*Only Winter Months)
Inflation With upto 3 Persons - F 33 R 30
Inflation With full load - F 35 R 41

Tyres - 195/45 R16, 205/40 R17
Inflation With upto 3 Persons - F 38 R 35
Inflation With full load - F 38 R 44

Engines - Z14XE, Z18XE SRi only
Tyres - 195/45 R16
Inflation With upto 3 Persons - F 35 R 32
Inflation With full load - F 38 R 44

Engine - Z13DTH
Tyres - 175/65 R14, 185/55 R15
Inflation With upto 3 Persons - F 33 R 30
Inflation With full load - F 35 R 41

Tyres - 195/45 R16, 205/40 R17
Inflation With upto 3 Persons - F 35 R 32
Inflation With full load - F 38 R 44

Engine - Z17DTH
Tyres - 185/55 R15
Inflation With upto 3 Persons - F 38 R 35
Inflation With full load - F 38 R 44

Tyres - 185/60 R15
Inflation With upto 3 Persons - F 35 R 32
Inflation With full load - F 38 R 44

Tyres - 195/45 R16, 205/40 R17
Inflation With upto 3 Persons - F 39 R 36
Inflation With full load - F 39 R 44


Combo Figures available upon request. Figures taken from the August 2003 Owners manual.
 
#26 ·
If you read the owners manual it tells you a higher figure that the haynes manual.

for A 175/65 R14 it says 39psi at the front ! seems way too high for an unladen car.

The Haynes manual says 32 front and 26 at rear, which makes more sense.

Why do the ECO models have 39 PSI? seems a lot !
 
#21 ·
I just put 36PSI all round for mine...
 
#23 ·
I do have a fully loaded car most times tho so thought 36psi all round would be fine...
EDIT: Shall I drop all the tyre pressures to 32psi all round then?
 
#25 ·
As mentioned in the 9th post, 35psi for front, 32psi for back.

Ignore the comments about having all round psi, higher or lower psi other than what your manual says (adjust the PSI if you are carrying heavy loads or quite a few passengers, as indicated in your manual).

The correct PSI gives the correct amount of tyre to road distribution, allowing for even wear, optimal grip and economy. This also takes into account of your car's suspension and shocks set-up. The reason why the tyres at the front has more pressure (unless you are carrying more passengers or taking a heavy load) is due to the location of the engine and taking into account of braking. Under heavy braking, most of the pressure is applied to the front of the car (hence cars tilt forward, as dictated by motion, forces, etc... not gonna give a physics lesson here so I'm gonna stop :lol: ), this is where your front tyres come into play.
 
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