RFTs to non RFTs = same tyre pressures?

[g3org3y]

Bit of advice please chaps,

When changing from factory RFTs to non RFTs, does one keep the tyres pressures as per factory spec or should they be bumped up a bit to compensate for the softer sidewall of the the non RFTs (relative to the RFTs)?

FWIW, this is on my 630i which was only available on RFTs from the factory.

[Court_S]

I was told by Birds to stick the the same pressures, which I do on my 130 with their B1 kit.

[jon-]

Generally yes, though you can check your handbook to ensure there's no separate pressure listed.

Most people do like to up the pressures by 1-2 psi so the difference in handling isn't quite as stark, but that's a personal preference.

[Radec]

Kept them the same when I had my E90.

First thing I did when I bought it and felt miles better on non-rfts.

However that was many years ago, I'm not sure how tech has progressed with rfts or they feel just as bad.

[g3org3y]

Thanks for the replies guys.

[jon-]

Radec said:

However that was many years ago, I'm not sure how tech has progressed with rfts or they feel just as bad.

They're still pretty trash.

[vikingaero]

jon- said:

Radec said:

However that was many years ago, I'm not sure how tech has progressed with rfts or they feel just as bad.

They're still pretty trash.

I would concur - I first had RFTs on my 2001 MINI Cooper and they were harsh as hell. Over the years I've driven many model of cars with RFT and they are still poor - if anything the improvement has been in isolating NVH rather than the tyres.