Wheels, Tires & AlignmentDiscussionCommunity Starter

1987 Porsche 911 — new tires are much louder than the old set — Brooklyn owner question

GarageDetailer721Community StarterJul 9, 20261987 Porsche 911 Carrera 3.2Brooklyn
Same size and pressure, but the new tires create noticeably more highway hum. Is this usually tread pattern/compound, or should I verify balance and alignment before blaming the tire model? I am in Brooklyn.
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13 replies

BrakeGuy390Community StarterCommunity StarterJul 9, 2026permalink
Owner notes beat generic advice here. On the 1987 Porsche 911 in Brooklyn, I'd fix the thing you'll notice every day before chasing spec-sheet extras. That's where I'd start. On “new tires are much louder than the,” that was the fork that mattered for me. Do that first. Climate here is different, so treat that as a local data point. That's my plan before I call anyone.
GarageDetailer721Community StarterCommunity StarterJul 9, 2026permalink
I parked the 1987 Porsche 911 and wrote down what I already tested so I'm not repeating myself. Wrote this up on my lunch break.
GarageDetailer721Community StarterCommunity StarterJul 9, 2026permalink
Thanks — that narrowed it. I'm going to try the simpler check on the 1987 Porsche 911 first. This is the version I'd tell a friend.
NoMarkupEnthusiast497Community StarterCommunity StarterJul 9, 2026permalink
Don't overfit one forum story to your car. If it still isn't clear on the 1987 Porsche 911, a specialist hour can be cheaper than another round of parts. I'd do that before spending real money. Write the result down so the next test isn't a repeat of the last one. If the story changes I'll post the new data.
RustBeltDIYer959Community StarterCommunity StarterJul 9, 2026permalink
Owner notes beat generic advice here. On the 1987 Porsche 911 in Brooklyn, I'd fix the thing you'll notice every day before chasing spec-sheet extras. I'd do that before spending real money. On “new tires are much louder than the,” that was the fork that mattered for me. This is from a 1987 Porsche 911 in Brooklyn. Learned this the expensive way on a previous car. I'd rather look cautious in this thread than stuck later.
LongMilesDaily160Community StarterCommunity StarterJul 9, 2026permalink
Don't overfit one forum story to your car. If it still isn't clear on the 1987 Porsche 911, a specialist hour can be cheaper than another round of parts. Then you'll know the next fork. No need to make it theatrical. If the story changes I'll post the new data.
GarageDetailer721Community StarterCommunity StarterJul 10, 2026permalink
Useful. I'll report back after I verify that on my 1987 Porsche 911. This is me being the wet blanket on purpose.
LongMilesDaily160Community StarterCommunity StarterJul 10, 2026permalink
Owner notes beat generic advice here. On the 1987 Porsche 911 in Brooklyn, I'd fix the thing you'll notice every day before chasing spec-sheet extras. That's where I'd start. On “new tires are much louder than the,” that was the fork that mattered for me. That's the sequence I'd use. I'd rather look cautious in this thread than stuck later.
BoostDailyCommunity StarterCommunity StarterJul 10, 2026permalink
I'd keep this practical. Verify the cheap/easy branch on the 1987 Porsche 911 before a big repair or a big spend. I'd do that before spending real money. Verbal 'we'll take care of it' is not a plan. I've seen both outcomes, which is why I'd test instead of assume. This is me being the wet blanket on purpose.
BoostDailyCommunity StarterCommunity StarterJul 10, 2026permalink
Yes, with one caveat: A second data point from another 1987 Porsche 911 owner helps more than a generic diagnosis. That's where I'd start. This is from a 1987 Porsche 911 in Brooklyn. If they can't show the line item, I assume it's hiding. Not trying to scare you — just skip the expensive first guess. If this is nothing, great. I want that in data.
GarageDetailer721Community StarterCommunity StarterJul 10, 2026permalink
Following up on new tires are much louder than the: still happening, but I have better notes now. This is the version I'd tell a friend.
GarageDetailer721Community StarterCommunity StarterJul 10, 2026permalink
Following up on new tires are much louder than the: still happening, but I have better notes now. I'm in no rush to be a hero on it.
GarageDetailer721Community StarterCommunity StarterJul 11, 2026permalink
Thanks — that narrowed it. I'm going to try the simpler check on the 1987 Porsche 911 first. I'll update if anything new shows up.
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