Uneven tire pressure changes?

[seriously]

I usually keep my tire pressure gauge on my display. I've noticed a VERY consistent pattern of both right tires heating up faster than my left tires. Cold the tire pressures will be even or maybe even slightly low on the right side. As I drive the car and the tires heat up the right side heats up faster. When hot the rights run about a full PSI higher than my left.

Anyone else seeing this?

I am on Cup 2s and I know they have that strange "same" thread pattern on both sides of the tires thing.

 

[KAR120C]

This time of year with the low sun and cooler air temps, the side towards the sun will run higher on my car. However, it's pretty consistent and will shift sides as I go in different directions.

Do you notice it regardless of the direction of the sun?

 

[scc.131.fe]

I usually keep my tire pressure gauge on my display. I've noticed a VERY consistent pattern of both right tires heating up faster than my left tires. Cold the tire pressures will be even or maybe even slightly low on the right side. As I drive the car and the tires heat up the right side heats up faster. When hot the rights run about a full PSI higher than my left.

Anyone else seeing this?

I am on Cup 2s and I know they have that strange "same" thread pattern on both sides of the tires thing.

Driving an oval track? Left turns only?

 

[Nick Sticks]

I'm seeing this for normal road use, though not by a full 1 psi.
I'll set all the tyres to the correct pressure and they will match across axles sometimes but invariably the right hand side will go higher.
When they do all match (after the rights being higher) I feel like I've won something.
I've just taken it as the sensors not being 100% the same in the way they are reporting the pressure.

 

[KAR120C]

Have you checked your tire wear? More wear on the right than left? If so, then maybe you have an alignment issue.

 

[seriously]

I have seen the tires pressure impacted by the direction of sun. But generally speaking under most circumstances the right side heats up faster. I'm going to ask Lotus about it when I get the car checked out. Maybe alignment or reset TPMS or something else? I should probably try to reset TPMS first.

 

[Porter]

I have seen the tires pressure impacted by the direction of sun. But generally speaking under most circumstances the right side heats up faster. I'm going to ask Lotus about it when I get the car checked out. Maybe alignment or reset TPMS or something else? I should probably try to reset TPMS first.

Is it possible that you have a different level of moisture in one side vs the other? Could be interesting to have a shop that has the right equipment evacuate the air under light vacuum and refill with a dry air/nitrogen mix to see if it changes things. I normally wouldn't recommend that but you sound like someone who'd be willing to do an experiment.

 

[seriously]

Is it possible that you have a different level of moisture in one side vs the other? Could be interesting to have a shop that has the right equipment evacuate the air under light vacuum and refill with a dry air/nitrogen mix to see if it changes things. I normally wouldn't recommend that but you sound like someone who'd be willing to do an experiment.

Never even occurred to me. Another idea to consider.

 

[ADC]

I also observe this... I had kind of idly written it off something like the weight distribution changing (more weight on the right) once I'm sitting in it, so the two with more weight on them were getting more in heat into them more quickly or something. Seeing as you're left-hand-drive, that hypothesis is clearly bunk. Weird...

EDIT: I'm on the Goodyears, so not specific to the Cup 2's it would seem.

 

[seriously]

I also observe this... I had kind of idly written it off something like the weight distribution changing (more weight on the right) once I'm sitting in it, so the two with more weight on them were getting more in heat into them more quickly or something. Seeing as you're left-hand-drive, that hypothesis is clearly bunk. Weird...

EDIT: I'm on the Goodyears, so not specific to the Cup 2's it would seem.

weird. it's definitely a thing then. not a big deal, but another Lotus thing it seems.

 

[virtualmacho]

Would like to hear what Rotus Emila owners are experiencing.

 

[MiamiBlue]

I think in part it's the two decimal places. If it rounded to one, you would be less aware of any differences.

For example I might see 2.47 and 2.54 shown on the display. But in other cars you would see 2.5 for both.

 

[Beachbum]

I have noticed that the side I sit on, has slightly higher pressures after a few miles, so maybe the extra weight makes a difference
The sun being out, potentially has an effect too, heating one side more than the other
Combine the 2 and it could get quite noticeable

 

[gcmak]

I have noticed that the side I sit on, has slightly higher pressures after a few miles, so maybe the extra weight makes a difference
The sun being out, potentially has an effect too, heating one side more than the other
Combine the 2 and it could get quite noticeable

It'll depend on a lot of factors discussed, including, which heat exchanger/radiator in front of the front tires has more heat. On the V6 Manual, there's only one radiator but the i4 has 2 (one on each side).

 

[seriously]

Since this thread has resurrected this is still very much so a thing for my car. really not a big deal, but it is not a rounding error. The L and R heat up differently. Would matter more at the track I suppose where you want to even out tire pressure and monitor as it changes. I never did manually verify PSI so there is a chance the digital meter is just off? Not sure.