986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - Has anyone ever swapped in LESS firm shocks?

DreamSign · 07-31-2022, 04:24 PM

Success ;0)~

I made the time today and swapped from the 18s to the 17s with new Indy 500s 255 40 17 rear
and Michelin Pilot Sports in the front at 205 50 17.

The rear Indy 500s are new. Probably at the end of the summer I'll buy a matching set for the front.

I didn't think to weigh the differences until I got to the rear wheels/tires which were 9lbs lighter each. That is quite a bit of rotational inertia. The car is a bit zippier with the lighter tires. And the car that now has the 18s is a bit slower :0( Pressures are 35 rear and 29 front.

I achieved the amount of bad road shock reduction I was hoping for. So I don't have to change the shocks or do anything else. I'm happy about that.

I prefer the look of the larger wheels, but not over the extra comfort and a slightly faster acceleration.

07-31-2022, 04:24 PM	#38
DreamSign Registered User Join Date: Jun 2022 Location: Sunny Silicon Valley, California Posts: 79	Success ;0)~ I made the time today and swapped from the 18s to the 17s with new Indy 500s 255 40 17 rear and Michelin Pilot Sports in the front at 205 50 17. The rear Indy 500s are new. Probably at the end of the summer I'll buy a matching set for the front. I didn't think to weigh the differences until I got to the rear wheels/tires which were 9lbs lighter each. That is quite a bit of rotational inertia. The car is a bit zippier with the lighter tires. And the car that now has the 18s is a bit slower :0( Pressures are 35 rear and 29 front. I achieved the amount of bad road shock reduction I was hoping for. So I don't have to change the shocks or do anything else. I'm happy about that. I prefer the look of the larger wheels, but not over the extra comfort and a slightly faster acceleration. Last edited by DreamSign; 07-31-2022 at 04:28 PM.