Was wondering if anyone had experience with tire pressures on their speedster. On the 165 size tires beck recommends 22 front and 24/26 rear. On the 185 size they refer to the manufacturers spec...which doesn't exist. I have the 185's loaded with 26 in the front and 28 in the rear. Feels pretty good but May experiment with +2 pounds all around. Any thoughts? Thanks.
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I have a Chesil (UK) and was recommended 18 psi front & 24 psi rear. It wasn't good for me. I've found that 24 & 28 works better for me, lighter steering...haven't noticed wear yet as I've still only done about 8000 miles. That's with 195, 65's.
I wouldn't go higher than where you are Peter. I might go lower. I run 20-22 front and 24-28 in the rear on my Spyder, depending on highway or local driving. These cars are light and need low pressure to keep a good contact patch. Higher pressure doesn't allow that, but may give you better mileage and a bit of wandering in the wind at high speed!
I do run about 5 pounds higher front and rear when autocrossing but drop it back down when done.
Yes Peter, try different combos. In my IM, with 185/65 tires, I've tried everything from 18/27 to 27/33 over the years. Presently, I'm at 22/27.
Quality feedback as usual, thanks. Took the car up to the cavallino classic show today in Palm Beach, about 70 highway miles, and did notice a bit of wandering at higher speed. Will probably drop the fronts to 24 and see how it feels then. Thanks again. Some picts below of the VIP parking area. Quite an event, today was a Ferrari's only concours, but the VIP parking was frankly more interesting. Enjoy.
Peter:
Is that a Veyron I'm looking at in that second picture. Not a lot of those in the world!
Yup. Black and red car = Bugatti Veryon. I've never seen one in person. Hard to judge their size. Sure looks pretty in pictures.
T
That particular one belonged to Flo Rida, r and b artist down here in Miami. The Bugs are actually pretty small compared to say a 599 ferrari, but they are impressive in person, 16 cylinder, 4 turbo chargers, active aero and about 10 times the horsepower of the 356!
I loved the episodes featuring Veyrons onTop Gear. The race against the McLaren was really cool.
I haven't kept up, are they still officially the fastest car on the planet or has the crown gone to somebody else? I know they lost it at some point then regained it again, but that has been awhile ago.
I believe they still have that crown, at least the guy with the car said so...as he would.
If I'm not mistaken, need to check the owner's manual that is home to Chamonix Speedster 1600cm3 with tire 185 Owners manual recommends 18 for the front and 20 in rear tires. On long trips is to add 2 more pounds.
I run 20 & 24 as well 
This really is a person preference. You need to try different combos until you find one that feels right.
20/24 is a good place to start. If you find it too soft bump up both by a couple of pounds and go for another drive.
Personally, I like canyon carving, so I tend to run mine a bit on the high side.
When using different size tires than stock, the stock VW recommended pressures no longer apply, as it's the volume of air in the tire that does the job. I've driven Toyota 4 wheel drives (first a pickup, now a 4Runner) for over 25 years and when fitting larger tires, lower pressures are needed to get the ride and wear back to what it was originally. You'll have to experiment until you find what feels best. One way to check is to run
chalk over a section of tread from side to side, and then go for a short drive. If it's gone on the edges, the tire is under-inflated and if it's rubbed off the middle it's over-inflated.
I usually set it to 20 front/28 rear
