Corvette · E-Ray · Rear

Corvette E-Ray rear tyres: 32-35 psi / 2.2-2.4 bar

Drivetrain: front-wheel drive
Body: passenger car
PSI F / R: 32-35 / 32-35
Bar F / R: 2.2-2.4 / 2.2-2.4

psi rear

2.31 bar · 231 kPa at the rear axle

32-35 psi F · 32-35 psi R · 2.2-2.4 / 2.2-2.4 bar · 231/231 kPa

The rear of a passenger car takes passengers, luggage and, on vans, payload. Catalogue rear pressure on the Corvette E-Ray is 32-35 psi / 2.2-2.4 bar. Size estimates on this page include 255/35R18, 225/40R18 and 255/40R17 — interpolated from the catalogue midpoint, not a second factory sticker.

Corvette E-Ray placard versus sidewall

The tyre-information placard on a Corvette E-Ray sits on the driver’s door pillar (sometimes the fuel-filler flap). Catalogue figures here are a general band: 32-35 / 32-35 psi.

Estimated pressure by tyre size (255/35R18 and others)

Planning cold pressures for sizes often seen on a passenger car. This E-Ray sample opens with 255/35R18, then 225/40R18 and 255/40R17.

Tyre size	Front PSI	Rear PSI	Front bar	Rear bar	Front kPa	Rear kPa	Note
255/35R18	—	36	—	2.48	—	248	Rear stagger 18-inch
225/40R18	—	35	—	2.41	—	241	Front 18-inch
255/40R17	—	36	—	2.48	—	248	Rear stagger 17-inch
275/30R19	—	37	—	2.55	—	255	Rear 19-inch
275/35R18	—	37	—	2.55	—	255	Wide rear
245/40R18	—	36	—	2.48	—	248	Square-ish sport
225/45R17	—	35	—	2.41	—	241	Front sport size
235/35R19	—	36	—	2.48	—	248	Front 19-inch

Pressure against load

Load moves the rear of a passenger car first. If the factory placard already has a “laden” column, use that instead of these sketches.

Condition	Front (est.)	Rear (est.)
Driver only	34 psi / 2.34 bar	34 psi / 2.34 bar
Full occupancy	34 psi / 2.34 bar	35 psi / 2.41 bar
Motorway + luggage	35 psi / 2.41 bar	37 psi / 2.55 bar

A family passenger car with a boot full of luggage should use the laden rear figure if Ford, VW or Mercedes printed one. Otherwise the modest steps in the load table are only a sketch for this E-Ray.

How to set the E-Ray

Measure before the school run, not after the M25.
Write LF / RF / RR / RL. Do not keep E-Ray numbers in your head.
Add air in short bursts toward 34 psi (2.31 bar) front and 34 psi rear.
If one corner is 4 psi down, hunt for a nail before you blame the weather.
Log date, ambient temperature and the four readings.

PSI, bar and kPa

PSI-led conversions for the Corvette E-Ray band (32-35 / 32-35).

PSI	Bar	kPa
30	2.07	207
32	2.21	221
33	2.28	228
33.5	2.31	231
35	2.41	241
36	2.48	248
38	2.62	262
40	2.76	276
44	3.03	303
50	3.45	345
60	4.14	414

Temperature drift

Roughly 1 psi per 5–6 °C. The table uses 34 psi as a 20 °C baseline for this E-Ray.

Ambient	Gauge (front mid)	Bar	kPa	Note
−5 °C (hard frost)	31 psi	2.14 bar	214 kPa	Gauge reads low; do not overfill once warm
0 °C	32 psi	2.21 bar	221 kPa	Gauge reads low; do not overfill once warm
8 °C (UK winter morning)	33 psi	2.28 bar	228 kPa	Gauge reads low; do not overfill once warm
20 °C (set cold here)	34 psi	2.34 bar	234 kPa	Baseline
30 °C	36 psi	2.48 bar	248 kPa	Do not bleed a hot tyre
38 °C (heatwave tarmac)	37 psi	2.55 bar	255 kPa	Do not bleed a hot tyre

Corvette notes

No special Corvette exception: the E-Ray uses the door-pillar placard. Size estimates on this page only help if you have left the original load index behind.

Spare and inflator kit

A matching full-size spare on the Corvette E-Ray usually follows the higher axle (often the rear, near 32-35 psi). A space-saver is commonly 60 psi / 4.1 bar — read that tyre’s own sidewall. An inflator kit is not a spare; check the sealant date.

A cheap gauge and a monthly habit will do more for this E-Ray than nitrogen upsells.

Other Corvette models

C8 ZR1 C1 Z06 CZ6 C3 C7 C6 Convertible

Questions about this E-Ray

What tyre pressure should a Corvette E-Ray use?

Catalogue reference is 32-35 psi front and 32-35 psi rear (2.2-2.4 / 2.2-2.4 bar), cold. Confirm on the door-pillar placard.

What PSI if I plus-size toward 255/40R17?

Keep load index at or above OEM. Low-profile sizes usually stay at or slightly above the placard. Use 255/35R18, 225/40R18 and 255/40R17 as a planning band.

When does TPMS warn on a Corvette E-Ray?

Direct TPMS typically flags about 25% below placard — near 25 psi on this row. Fill to the sticker, not to the lamp.

Is the sidewall number correct on a Corvette E-Ray?

No. Sidewall PSI is a maximum. The E-Ray placard is the operating target, near 32-35/32-35 psi.

Front versus rear on the Corvette E-Ray?

This row is 32-35 F / 32-35 R. Even when they match, a laden rear can justify a higher number if the sticker prints one.

Handbook: placard · bar vs PSI · front vs rear · cold inflation