sflrainmaker01
RescuRauder
Just wondering, what do you keep you tire air pressure? The stock BFG's say max pressure 44psi. I usually run around 36 psi in my tires.
What tire air pressure do you run with?
- Thread starter sflrainmaker01
- Start date
fastblackmerc
Everything Marauder, LEDs & HI
NEVER, NEVER , NEVER, EVER run the maximum air pressure listed on the sidewall!
Nice way to have a tire blowout when it gets hot and the air pressure inside the tire increases.
I run 34 in the stock sized fronts and 36 in the widened lager than stock sized rears.
gdsqdcr
Just another Marauder owner
Never heard that before. I was/am under impression that the max rating on the tire is for cold pressure. If that is the case, why not run at max pressure of close to it?
Just curious ...
Anthony
Bluerauder
CAMaraudin' in Virginia
35 psi front and 38 psi rears.
sflrainmaker01
RescuRauder
When I was driving my 5.0 Coupe everyday, I usually ran it at or near max PSI. I never had any problems. I mainly did it to make sure I got the best MPG's I could, considering it wasn't an econo box. Then, I could justify stomping on it every once in a while!
:burnout:
RubberCtyRauder
Weißbirke Plünderer
Max psi is for cold(not run in the last few hours) and tires will ad psi as they warm up but then again also lose psi as they cool down. Max psi will be a harsher ride on most vehicles and prolly wear then center tread more.
Nothing could be farther from the truth.
Do you think the engineers at tire companies don't know that the pressure increases at the tire heats up? That is why it says on the sidewall maximum COLD inflation pressure.
In fact the tire companies tell you if you are going to do extended high speed driving to increase the cold inflation pressure 2-3 psi above the pressure listed on the tire placard w/o exceeding the max cold inflation pressure. They also tell you to never bleed air out of a hot tire even if the reading is above the max cold inflation pressure.
What causes the tire temp to increase is the flexing. The higher the tire pressure the less it flexes so the lower the increase in temp.
The quickest way to cause a blowout is to run the tire under-inflated as that will heat it up more and it causes more fatigue due to the greater amount of flex.
Bluerauder
CAMaraudin' in Virginia
The sidewall says "MAX PRESS 300KPa (44 PSI)". It does not specify that this is the cold inflation pressure. Tire experts cited here recommend not inflating above 90% of the Max Pressure to allow for any pressure increase due to the temperature/friction/flex rise. That puts the Max Cold Inflation at about 40 psi with a 4 psi allowance.
Stickers on the doors of 2003 and 2004 MMs are different. Originally, the 2003 MMs showed 32 psi all around. Complaints about premature tire wear caused F-L-M to adjust the pressures to 35 psi all around on the 2004 model. Same car, different pressures.
Many owners here have chosen to increase the pressures in the rear to the 38-40 psi range to offset the center tire wear on the rear tires. Yes, we know that this is counter to prevailing tire wisdom ... but it seems to work.
Inflating to the MAX Pressure on the sidewall is just asking for problems. I don't screw around with Tires or Brakes.
bobsawyer7
New member
Stock BFG's
35 front
37 rear
Forget where I read that but, it works well for me.
35 front
37 rear
Forget where I read that but, it works well for me.
whitey
Closed
I run whatever the door sticker says, and i check it whenever i care to check...maybe once every 2-3 months. FWIW, i used to run max psi in my first car, and had many of days i went 100-128mph....never had a blow out.....17in rims with low profile tires. I dont think to much about it to be honest, as long as they look alright. Just my $.02.
