Custom Tire Pressure
#1
Driver School Candidate
Thread Starter
Join Date: Nov 2008
Location: Virginia
Posts: 20
Likes: 0
Received 0 Likes
on
0 Posts
Custom Tire Pressure
I now have 19" 245-35-19 all around. The factory recommends PSI of 33 for the stock 18" tires. I liked the tire pressure at 35 though with the factory size.
For those of you running 245-35-19 tires - what cold tire pressure are you at?
Thanks in advance.
For those of you running 245-35-19 tires - what cold tire pressure are you at?
Thanks in advance.
#2
34...when hot, they get up to 36
I've had some wobbling issues and front tires that are a little out of round but I only have 3k miles on them and am waiting to replace for another year. They are Dunlop Direzzos about 3 years old.
I am thinking about Nitrogen filled air...any thoughts on that?
I've had some wobbling issues and front tires that are a little out of round but I only have 3k miles on them and am waiting to replace for another year. They are Dunlop Direzzos about 3 years old.
I am thinking about Nitrogen filled air...any thoughts on that?
#4
Lexus Champion
iTrader: (6)
Join Date: Nov 2002
Location: Mississauga,Ontario,Canada
Posts: 3,488
Likes: 0
Received 8 Likes
on
8 Posts
Just thought i would add my 2 bits ,I run my 20's at 50 psi 255/35 and 275/30 .
I met with a toyo head office rep and he had a program to show what the new tire pressures are for each car and its specific tire sizes.
It showed my 98 LS400 should be at 45 psi , but tires are cheaper than my rims so i upped it by a few more pounds as the 45 is equal to the 33 with the lessened sidewall.
I met with a toyo head office rep and he had a program to show what the new tire pressures are for each car and its specific tire sizes.
It showed my 98 LS400 should be at 45 psi , but tires are cheaper than my rims so i upped it by a few more pounds as the 45 is equal to the 33 with the lessened sidewall.
#5
Just thought i would add my 2 bits ,I run my 20's at 50 psi 255/35 and 275/30 .
I met with a toyo head office rep and he had a program to show what the new tire pressures are for each car and its specific tire sizes.
It showed my 98 LS400 should be at 45 psi , but tires are cheaper than my rims so i upped it by a few more pounds as the 45 is equal to the 33 with the lessened sidewall.
I met with a toyo head office rep and he had a program to show what the new tire pressures are for each car and its specific tire sizes.
It showed my 98 LS400 should be at 45 psi , but tires are cheaper than my rims so i upped it by a few more pounds as the 45 is equal to the 33 with the lessened sidewall.
#7
Toyo Tire Inflation Pressure Table
On the Toyo website ( http://toyotires.com/care-safety/load-inflation-tables ),
I found this link to the pdf file for tire inflation pressure:
http://cache.toyotires.com/sites/def...ationtable.pdf
I found this link to the pdf file for tire inflation pressure:
http://cache.toyotires.com/sites/def...ationtable.pdf
Trending Topics
#8
On the Toyo website ( http://toyotires.com/care-safety/load-inflation-tables ),
I found this link to the pdf file for tire inflation pressure:
http://cache.toyotires.com/sites/def...ationtable.pdf
I found this link to the pdf file for tire inflation pressure:
http://cache.toyotires.com/sites/def...ationtable.pdf
DONZ PRO GENOVESE 20 X 10 HYPER SILVER [ PAINTED ]
REAR TIRES ARE TOY0 PROXIES T1-S 275/30ZR20
DONZ PRO GENOVESE 20 X 8.5 HYPER SILVER [ PAINTED ]
FRONT TIRES ARE TOYO PROXIES T1-S 245/35ZR20
When I called Toyo today they have discontinued the T1-S and are using the TR-1. They dont have the same size configeration in the TR-! as I have with the T1-S.
The new TR-1 staggered fitment is 255/30/20 front 41 lbs of air
the new TR=1 staggered fitment is 265/30/20 rear 38 lbs of air
Since my fronts are 245/35ZR20 smaller then the above fitment by 10
Since my rears are 275/30ZR20 larger then the above fitment by 10
What air pressure should I run my T1-S at. Suspension is stock except for daizen front and rear and toms tower bar. Car is not lowered and the rest of suspension is OEM.
I would really like to know what air pressure I should use .Any one got some idea
#10
34...when hot, they get up to 36
I've had some wobbling issues and front tires that are a little out of round but I only have 3k miles on them and am waiting to replace for another year. They are Dunlop Direzzos about 3 years old.
I am thinking about Nitrogen filled air...any thoughts on that?
I've had some wobbling issues and front tires that are a little out of round but I only have 3k miles on them and am waiting to replace for another year. They are Dunlop Direzzos about 3 years old.
I am thinking about Nitrogen filled air...any thoughts on that?
#13
Lexus Champion
iTrader: (6)
Join Date: Nov 2002
Location: Mississauga,Ontario,Canada
Posts: 3,488
Likes: 0
Received 8 Likes
on
8 Posts
Out of round happens all the time when a belt shifts , I have had that happen on a set of dunlops.
Flat spots on hard compund tires left to sit si also very common , usually the best way around it it to up the pressure a few pounds to keep it round.
I use nitrogen and it is a great product if it is installed properly by fillign and purging 3 times to get a high ratio inside the tires. Most will not do it that way so it is 80% nitrogen and 20 air . Air is made up of mostly nitrogen so it is mainly the water to be removed and the denser nitrogen particles which help reduce noise and keep from pressure changes.
If you have a softer sidewall on a t1-s then up you pressure 5 lbs more to make it stiffer.
Flat spots on hard compund tires left to sit si also very common , usually the best way around it it to up the pressure a few pounds to keep it round.
I use nitrogen and it is a great product if it is installed properly by fillign and purging 3 times to get a high ratio inside the tires. Most will not do it that way so it is 80% nitrogen and 20 air . Air is made up of mostly nitrogen so it is mainly the water to be removed and the denser nitrogen particles which help reduce noise and keep from pressure changes.
If you have a softer sidewall on a t1-s then up you pressure 5 lbs more to make it stiffer.
#14
sounds like a couple of us are low by about 5psi versus what the toyo rep stated on our 19's. I will try increasing mine as well as try nitrogen to get rid of the clunking. It's a shame about these dunlops, because I have had them before on my RX7 back in the day and got nearly 30k miles out of them! These only have less than 3k on them and having problems.
It's not like I let the car sit for weeks or even an entire week. I drive it at least twice a week...about 10-30 miles per week. Maybe it's not enough with 30 and 35 series tires?
My old RX7 tires were 225/50/16 or something like that on Dunlops so maybe because they were softer?
It's not like I let the car sit for weeks or even an entire week. I drive it at least twice a week...about 10-30 miles per week. Maybe it's not enough with 30 and 35 series tires?
My old RX7 tires were 225/50/16 or something like that on Dunlops so maybe because they were softer?
Thread
Thread Starter
Forum
Replies
Last Post