Tires..yes..I know..
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From: Kamloops
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Tires..yes..I know..
Hey all…I know..but different question..my 08 vantage currently runs 255/30/20 front and 305/25/20 rears..was wondering about going 35 front and rear..little more cushioning for our tar snake roads..what’s your take…thanks for looking..
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Would there be a reason to run different aspect ratio on front and back…as I said..I was looking for a little more rim protection..it’s not getting tracked..just enthuastic driving with mates..thanks for the reply..
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i was implying setting the pressures LOWER than recommended such that you feel a difference or until you feel unsafe, then taking a short jaunt to see how they feel.
for example, i recently lowered tire pressures on my very light vintage british sports car to 23psi in front and 18 in the rear. the tire shop had set them to 32psi front and rear. just because they don't take much of anything into consideration..., but the car only weighs 2000 lbs AND the tires are somewhat wider and the sidewalls somewhat taller than the OEM tires back in 1953 and the rear of the car carries much less weight than the front. in all, meaning pressures can be safely set even BELOW the original suggested settings by the manufacturer and those recommended by participants on forums such as this for my vintage car. the difference, as stated previously, was remarkable!!!
of course, there's no way you will be able to make those kinds of drastic differences (now that i think about it those damnable TPMSs could even prevent trying) or even safely test them for a modern car, but the process is the same and could be used to good effect on occasion, i think.
for example, i recently lowered tire pressures on my very light vintage british sports car to 23psi in front and 18 in the rear. the tire shop had set them to 32psi front and rear. just because they don't take much of anything into consideration..., but the car only weighs 2000 lbs AND the tires are somewhat wider and the sidewalls somewhat taller than the OEM tires back in 1953 and the rear of the car carries much less weight than the front. in all, meaning pressures can be safely set even BELOW the original suggested settings by the manufacturer and those recommended by participants on forums such as this for my vintage car. the difference, as stated previously, was remarkable!!!
of course, there's no way you will be able to make those kinds of drastic differences (now that i think about it those damnable TPMSs could even prevent trying) or even safely test them for a modern car, but the process is the same and could be used to good effect on occasion, i think.
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From: Kamloops
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i was implying setting the pressures LOWER than recommended such that you feel a difference or until you feel unsafe, then taking a short jaunt to see how they feel.
for example, i recently lowered tire pressures on my very light vintage british sports car to 23psi in front and 18 in the rear. the tire shop had set them to 32psi front and rear. just because they don't take much of anything into consideration..., but the car only weighs 2000 lbs AND the tires are somewhat wider and the sidewalls somewhat taller than the OEM tires back in 1953 and the rear of the car carries much less weight than the front. in all, meaning pressures can be safely set even BELOW the original suggested settings by the manufacturer and those recommended by participants on forums such as this for my vintage car. the difference, as stated previously, was remarkable!!!
of course, there's no way you will be able to make those kinds of drastic differences (now that i think about it those damnable TPMSs could even prevent trying) or even safely test them for a modern car, but the process is the same and could be used to good effect on occasion, i think.
for example, i recently lowered tire pressures on my very light vintage british sports car to 23psi in front and 18 in the rear. the tire shop had set them to 32psi front and rear. just because they don't take much of anything into consideration..., but the car only weighs 2000 lbs AND the tires are somewhat wider and the sidewalls somewhat taller than the OEM tires back in 1953 and the rear of the car carries much less weight than the front. in all, meaning pressures can be safely set even BELOW the original suggested settings by the manufacturer and those recommended by participants on forums such as this for my vintage car. the difference, as stated previously, was remarkable!!!
of course, there's no way you will be able to make those kinds of drastic differences (now that i think about it those damnable TPMSs could even prevent trying) or even safely test them for a modern car, but the process is the same and could be used to good effect on occasion, i think.
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From: denver
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it was able to be defeated on my 2007 vantage by simply unplugging the TPMS module. in 2008-10 timeframe, IIRC, aston made it more difficult. ...i think they were getting "leaned on" by the government. 
the powers that be didn't want cranky old men like me taking off the things.
the powers that be didn't want cranky old men like me taking off the things.
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From: denver
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standard 18" or 19" rims have tires with 255x45/275/40 or 255x40x275x35 IIRC. so already have a lot more cush. those 20" rims are problematical to begin with. and might start rubbing if a taller sidewall is used. it will sit higher too...marginally. i have no experience with them at all though. so just speculation...
to answer the question directly though (for a change!), i wouldn't bother buying new tires to soften the ride, although theoretically it could help. i'd be looking at 18" or 19" rims and standard sized tires as a solution. but like i said i before, i'd try reducing the air pressure with what's there as a test. it's possible that the OP cannot be satisfied with the ride quality due to the combination of damping and 20" rims and the issue can't be resolved by tires alone, anyway.
to answer the question directly though (for a change!), i wouldn't bother buying new tires to soften the ride, although theoretically it could help. i'd be looking at 18" or 19" rims and standard sized tires as a solution. but like i said i before, i'd try reducing the air pressure with what's there as a test. it's possible that the OP cannot be satisfied with the ride quality due to the combination of damping and 20" rims and the issue can't be resolved by tires alone, anyway.
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I have 30's and 35's on my 20" wheels. With the sports pack suspension set up it's very firm.
This past weekend I experimented with some tire pressures and think 30 psi front and 34 psi rear is a good happy medium.
it's a weekend car. If it was a daily driver, I'd probably put my 19's back on the car
This past weekend I experimented with some tire pressures and think 30 psi front and 34 psi rear is a good happy medium.
it's a weekend car. If it was a daily driver, I'd probably put my 19's back on the car
Last edited by MRCW; Apr 3, 2023 at 07:56 AM.
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I swapped from the stock 07 V8 Vantage size to the post 09, I think I plugged in 2010, V8S size and it is wider and taller all around, with better rim protection on the Michelin Pilot Sport 4S's.Side benefit, your speedometer will be more accurate. At least in my case it was. It's a noticeable difference driving and cosmetically. I don't recall the numbers off the top of my head, I think Redpants has a blog post about that up-sizing option.
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Lot of good tire information here. I believe your tire sidewalls are 1/2" too narrow for 20"s. Should be 255/35/20 and 305/30/20.
https://www.6speedonline.com/forums/...s-vantage.html
https://www.6speedonline.com/forums/...s-vantage.html