Can anyone tell me what my tyres are supposed to be at? Mine ranged from 18 to 32 psi when I checked them at the weekend, which was rather worrying.
Chris
Tyre Pressures
Started by
vx_220
, Jan 08 2003 10:53 AM
6 replies to this topic
#2
Guest_Guest (Guest)
Guest_Guest (Guest)
Posted 08 January 2003 - 11:03 AM
It says in the owners manual
#3
VEX
-
-
- 2,230 posts
Scary Internerd
- Gender:Male
- Location:Home Counties
Posted 08 January 2003 - 11:26 AM
Are, yes it does say in the manual, but apparently it got changed recently from around the 30's to something like 26 fornt 28 rear.
Can't remember exactly though.
Cw
#4
PipSqueak111
-
-
- 255 posts
Super Member
- Location:Hertfordshire/north London
- Interests:Anything fun involving speed, wheels or an engine.<br><br>I'm a marshal, why aren't you?!
Posted 08 January 2003 - 11:36 AM
My manual says 26.5 front and 27.5 rear. How you're supposed to be accurate to .5 I don't know though?!?!
Was really shocked how low those figures were when I first got the car. The 215/45/17 S-02s on my old car were being run at 36 on road and 40 on track. The VX figures sound really low in comparison.
#5
garyk220
-
-
- 3,035 posts
VX parts all sold, saving for replacement
- Gender:Male
- Location:Scottish Borders
Posted 08 January 2003 - 11:56 AM
The VX is very light compared with most other cars, hence the lower pressure.
I've been running 26.5 F, 27.5 R since I got my car (well as close as I can get with my analogue guage). When I replaced the rear tyres last month, after 12,000 miles, the centre part was more worn than the edges. I've been advised to run them 1 or 2 psi lower, maybe 25 F, 26 R.
Apparently this is a common problem with performance cars, TVRs, Subarus, etc. where the manufacturer quotes a slightly higher pressure. The quoted pressure is probably a good compromise between normal road use and hard driving/track use.
Gary
#6
Ricky2772
-
-
- 3,685 posts
Scary Internerd
- Interests:For those who grasp for Hir beyond the horizon of usual consciousness, preparing for the time when something powerful will present Hir-Self This advise is given...
Posted 08 January 2003 - 03:33 PM
after lotsa experimenting, I came to the conclusion that the suggested 1.8atm front/1.9rear are optimal, even for track use; to be diminished a bit for summer tracking.
my wear was quite uniform until the lowered spax setup, that increased camber, hence a bit more wear on the inside (price to pay for higher roadholding).
at 14000km, I have 2mm left, (inner side rears are "flat") so next spring a new set will be needed.
#7
robS
-
-
- 43 posts
Member
- Location:Macclesfield, Cheshire
- Interests:Currently drive a TVR Cerbera but I fancy a change. I'm not 100% sure what to go for next as there isn't much to compete with the performance and image of the cerbie. I've been thinking of the Elise/VX as they're so different from the TVR, bit unsure about the whole sill issue though, at 6'1 with a narrow garage getting in and out could be an issue!
Posted 08 January 2003 - 04:13 PM
Tyre pressures are one of those things worth playing around with, the suggested 26/28 sounds like a pretty reasonable for the VX. On my TVR when I had the 16" wheels the factory recommend 22/24 for normal use 25/28 for sustained fast use and 28/28 for tracking. I found the 25/28 to be best all around. With the 18" alloys now on I have them set to both 26/26.
2 user(s) are reading this topic
0 members, 2 guests, 0 anonymous users
