Tire pressure relief valve, thoughts?
03-25-2014, 10:30 AM
#1
Tire pressure relief valve, thoughts?
Has anyone ever tried the long acre tire pressure relief valve kit?
http://www.summitracing.com/parts/lng-50000/overview/
I know a pyrometer and tire temp range is more inline with optimized tire performance, but how do these perform?
http://www.summitracing.com/parts/lng-50000/overview/
I know a pyrometer and tire temp range is more inline with optimized tire performance, but how do these perform?
03-29-2014, 04:41 PM
#3
I have always wondered if someone made something like this. If I understand correctly, you basically setup a maximum pressure and as the tires heat up the pressure is bled off accordingly? So you could setup to never go beyond 38 psi hot for example?
It looks like these require drilling an extra hole in the wheel though so that is pretty far from ideal.. Couldn't someone just make a valve stem cap or valve stem with the same function?
It looks like these require drilling an extra hole in the wheel though so that is pretty far from ideal.. Couldn't someone just make a valve stem cap or valve stem with the same function?
03-31-2014, 01:37 PM
#4
Registered User
Join Date: Jun 2010
Location: Michigan
Posts: 285
Likes: 0
Received 0 Likes
on
0 Posts
I've wanted to do something like this for years. Alas, they are illegal for NASA TT/PT competition. I'm not sure about legality for other NASA and SCCA classes, but if they're just for track days, then why not!
04-01-2014, 06:29 AM
#6
The problem with stuff like those is unless they have a lot of internal damping and low internal friction, they'll let a bit of air out for every bump and chassis movement that loads the tyre carcass.. you'll always end up with less pressure than you want as it'll bleed it off through the race all the time.
04-01-2014, 06:42 AM
#7
The problem with stuff like those is unless they have a lot of internal damping and low internal friction, they'll let a bit of air out for every bump and chassis movement that loads the tyre carcass.. you'll always end up with less pressure than you want as it'll bleed it off through the race all the time.
Although I never tried them I did pit with a guy who did and had the same comment that they were not appropriate for most track situations.
He said that monitoring shows very large temp/pressure changes over the course of a lap so that bleeding at very high pressure time will leave you with less inflation that you want after that period with negative affects for the next lap.
Thread
Thread Starter
Forum
Replies
Last Post