blue383

My C6 gives a high tire pressure warning at 42psi. I often find if I start with cold pressure at 32-33psi I can exceed 42psi when the tires get hot during a long HDPE session. It's very annoying since it takes several button presses to get the display back to oil temp which is what I really want to see. My previous car was a C5 and it was less of a problem since the warning wouldn't come on til 44psi.

Does anyone know of a way to change the limit or disable the high pressure warning? I do like the safety of having a low pressure warning in case a tire starts going down so I don't want to turn off the system completely.

MartyZ51

I have a had a similar problem with my C6. I didn't know what pressure the warning was set. I'm thinking a 10 psi increase on a 25 minute session means I have too much moisture in my compressor! I don't think Costco will fill tires with nitrogen that they didn't sell but that would fix the issue.

AU N EGL

take air out. Start at 30f 28 r

gkmccready

Only useful if you don't want to run at those pressures. I've been told to try hot pressures on the Toyo R888s in the 46psi range!

BEZ06

The high pressure message is just an informational thing - it doesn't do anything other than tell you that you've got high pressure. So, it's nothing more than a nuissance if you need to clear it to get back to see oil temp in your DIC.

What do you have in your HUD? I assume oil pressure or coolant temp.

At least the high pressure alert doesn't do the things that will happen if you get a low pressure alert. A low pressure message will turn your AH back full on, but of course that's not your biggest concern if you're losing pressure on the track - and like you say, I run sensors because I think that would be a good thing to know!


Bob

blue383

Tanks for the replies.
I don't have HUD. The real problem is just a lot of button pushes to get back to oil temp on the DIC.
I don't want to run much lower pressure since I get a lot of tire wear on the outside edges. Just got the fronts aligned with 1/2 degree more negative camber so that should help.

wtknght1

Contact Joe Aqualante at Phoenix Performance. They broke that code a couple of years or so ago and involves a programming change of the computer as I recall. JFAphoenix32@aol.com

BEZ06

Phoenix is the outfit I alluded to in another thread. I remember a year or two ago that they were looking for some people to front some money to hire a software guru to tackle the problem.

I haven't heard them advertising that they found a solution - I'm sure it's for track only vehicles due to liability issues.

Bob