05-10-2023, 02:59 AM
(This post was last modified: 05-10-2023, 03:11 AM by quattro4awd.)
understood, this is something I am willing to investigate a bit deeper after the "summer" wheels and new TPMS sensors arrive.
With my upcoming experiment ("AKA" running CC tire sizes on a standard dynamic suspension optioned S60): I.E.= moving up to a 50 series aspect ratio tire from a 45 series.
I am doing this to try and reduce the amount of "aggravated assault" being inflicted on the underside of the S60's bumper covers. will the handling suffer from this experiment?.. yeah, probably to some extent but for me since the S60 is being positioned as a DD vehicle (and not a WW track car) it is worth a bit of tradeoff to minimize the scraping (that sound is like fingernails on a chalk board to me.. drives me nuts). This isn't my 1st rodeo with this type of experiment, I did the same thing to my MKV jetta for the same reason with good results.
some back history on why I'm asking about the threshold:
for my old MKV jetta there was an available toggle to swap multiple wheel/tire sets through Vag-Com. I also found the TPMS flag threshold was adjustable between stored wheel sets. (I am hoping this will be the case with the S60 as well) This came in handy when the 50 series tires went on the jetta. following the factory sticker in the door jamb at the 35psi setting, the jetta felt like it was wallowing through corners. I found the car handled better when the cold tire pressure was set to 41psi, so I bumped up the minimum threshold flag to 38psi on that wheel/tire set (IIRC the factory flag was set for 30psi. by setting a 38psi trigger point, the dash warning would illuminate before the wallowy feeling made it's presence known).
I have a feeling that a bump in the S60's base tire pressure will also be necessary to keep the wallowy feeling corner's in check due to the taller sidewalls of the 50 series tires. If it is possible to bump the S60's minimum threshold flag value, this is something I would like to implement especially for my wife's consideration (she is a point "A" to point "B" type of driver and might not notice/recognize the change in handling characteristics as the tire pressure starts to drop like I would).
With my upcoming experiment ("AKA" running CC tire sizes on a standard dynamic suspension optioned S60): I.E.= moving up to a 50 series aspect ratio tire from a 45 series.
I am doing this to try and reduce the amount of "aggravated assault" being inflicted on the underside of the S60's bumper covers. will the handling suffer from this experiment?.. yeah, probably to some extent but for me since the S60 is being positioned as a DD vehicle (and not a WW track car) it is worth a bit of tradeoff to minimize the scraping (that sound is like fingernails on a chalk board to me.. drives me nuts). This isn't my 1st rodeo with this type of experiment, I did the same thing to my MKV jetta for the same reason with good results.
some back history on why I'm asking about the threshold:
for my old MKV jetta there was an available toggle to swap multiple wheel/tire sets through Vag-Com. I also found the TPMS flag threshold was adjustable between stored wheel sets. (I am hoping this will be the case with the S60 as well) This came in handy when the 50 series tires went on the jetta. following the factory sticker in the door jamb at the 35psi setting, the jetta felt like it was wallowing through corners. I found the car handled better when the cold tire pressure was set to 41psi, so I bumped up the minimum threshold flag to 38psi on that wheel/tire set (IIRC the factory flag was set for 30psi. by setting a 38psi trigger point, the dash warning would illuminate before the wallowy feeling made it's presence known).
I have a feeling that a bump in the S60's base tire pressure will also be necessary to keep the wallowy feeling corner's in check due to the taller sidewalls of the 50 series tires. If it is possible to bump the S60's minimum threshold flag value, this is something I would like to implement especially for my wife's consideration (she is a point "A" to point "B" type of driver and might not notice/recognize the change in handling characteristics as the tire pressure starts to drop like I would).