• ⚙️ 3rd & 4th Gen Toyota Tacomas | Tacoma3G

    🌮 Tacoma3G.com is an online resource and community for 2016+ Toyota Tacoma owners.

    👤 Registration is completely free and only takes a few seconds, so we hope to see you and your rig on the forum!

    ♥️ Beginner friendly. Tight-knit. No ads. The raddest. Read more about us...

Wheels / Tires Tire pressure

Jay

7️⃣ Connoisseur
Tacoma3G Supporter
Tacoma3G O.G.
T3G Member
#64
Messages
918
Reaction score
1,202
Location
I drive a jeep
First Name
Jacob
Instagram
@LC_overland_
2021 Army Green Sport Double Cab, Short Bed Automatic
Okay T3G

I was talking to a friend that builds race trucks about tire pressure.
He said your tire pressure should match your tire size.

What are your thoughts. He said even on his 37s on his tundra he only runs 37psi.
I’ve been running at around 32-33 all around for a while now and tire wear seems to be pretty great
 

Bird dog

9️⃣ Legend
Tacoma3G Supporter
Tacoma3G O.G.
T3G Member
#659
Messages
2,842
Reaction score
5,810
Location
Peoria,AZ
First Name
DJ
2017 Barcelona Red Off-Road Double Cab, Short Bed Automatic
That is just a starting point (guideline). Fine tuning is still required for vehicle and load weights, speeds and terrain.
 

Jay

7️⃣ Connoisseur
Tacoma3G Supporter
Tacoma3G O.G.
T3G Member
#64
Messages
918
Reaction score
1,202
Location
I drive a jeep
First Name
Jacob
Instagram
@LC_overland_
2021 Army Green Sport Double Cab, Short Bed Automatic
That is just a starting point (guideline). Fine tuning is still required for vehicle and load weights, speeds and terrain.
See I thought the same thing but I see people running around 40 which is really high
 

Bird dog

9️⃣ Legend
Tacoma3G Supporter
Tacoma3G O.G.
T3G Member
#659
Messages
2,842
Reaction score
5,810
Location
Peoria,AZ
First Name
DJ
2017 Barcelona Red Off-Road Double Cab, Short Bed Automatic
I have seen fat people in halter tops and short shorts, that doesn’t make it right.
 

0uTkAsT

9️⃣ Legend
Tacoma3G Supporter
T3G Member
#646
Messages
1,281
Reaction score
5,279
Location
Gilbert, AZ
First Name
Josh
Instagram
@low_speed_high_drag
2018 Silver Sky Off-Road Double Cab, Short Bed Manual
Weight and sidewall firmness play the biggest factors in my experience. The chalk test is good for an initial starting point but it really comes down to trial and error in the end. Lighter rigs with firmer sidewalls need less pressure, and vice versa. Sidewalls that are more prone to deformation like the 33" P-metric "standard load" AT3Ws I had on my last truck needed more pressure for the best handling and fuel economy and also didn't need to be aired down as much off-road for the same reasons.

FWIW, I ran 38 psi front / 36 psi rear around town on my '16, and upped it by 2 psi in the rear when I was fully loaded. That was with the P285/70R17SL Falkens, and I only ever needed to air them down to about 20 psi for adequate compliance off-road. Compared to my much, much lighter 2nd Gen that had the same size tires only in an E-rated LT mud terrain, I only ran 33 psi front and rear and had to air down to about 15 psi to get any kind of pliability out of the sidewalls for flotation and rock crawling.
 

Mr. Nobody

8️⃣ Paragon
Tacoma3G Supporter
Tacoma3G O.G.
Authorized VF Tuner
T3G Member
#184
Messages
2,288
Reaction score
3,262
Location
San Diego, CA
First Name
Andy
Instagram
@traveling_nobodys
YouTube
/traveling_nobodys
2017 Quicksand Off-Road Double Cab, Long Bed Automatic
I know I sound crazy, but I run my tires (265/70/17 e rated KO2's) at 40-41 psi. I did the chalk test, and have since had several rotations and am getting even wear on all 4 corners. I still trip out when I think of how high the pressures are but I seem to get the best mileage and good wear this way.
 

Pelfreybilt

pelfreybilt.com
Tacoma3G O.G.
T3G Member
#208
Messages
108
Reaction score
210
Instagram
@pelfreybiltoffroad
We run varying PSI between vehicles here. Personally I run 40 PST in front and 38 in the rear on my second gen (right at about 6k curb weight currently) Falken 315/75R16 MT01's but ran less in the same size MTR's w/ Kevlar. Vehicle weight and tire type/brand/rating play into it a lot but trial and error are your best bet. My MT01's dont ride as smooth as someone who runs less PSI but they wear a hell of a lot better. After driving MRAP's and such I can deal with a stiff tire on the road and have it last longer.
 

0uTkAsT

9️⃣ Legend
Tacoma3G Supporter
T3G Member
#646
Messages
1,281
Reaction score
5,279
Location
Gilbert, AZ
First Name
Josh
Instagram
@low_speed_high_drag
2018 Silver Sky Off-Road Double Cab, Short Bed Manual
We run varying PSI between vehicles here. Personally I run 40 PST in front and 38 in the rear on my second gen (right at about 6k curb weight currently) Falken 315/75R16 MT01's but ran less in the same size MTR's w/ Kevlar. Vehicle weight and tire type/brand/rating play into it a lot but trial and error are your best bet. My MT01's dont ride as smooth as someone who runs less PSI but they wear a hell of a lot better. After driving MRAP's and such I can deal with a stiff tire on the road and have it last longer.
What PSI do you run your penis pump at?

Oops, wrong thread.
 

jeeves

1️⃣ Getting Started...
T3G Member
#955
Messages
1
Reaction score
0
Location
Carolinas
First Name
Alan
2018 Quicksand Off-Road Double Cab, Short Bed Manual
+1 for the chalk test being a beginning. The chalk test ensures you won't wear the tires funny, but the reality is that a range of PSI's will pass the chalk test. I run Cooper ST Maxx LT235/85R16 at 40 front, 38 rear, with about 150lbs of permanent added weight. It's a little more comfortable at 33, but I get 1-2mpg better at 40/38. And they both still passed the chalk test.
 

Flinky

3️⃣ Silver
T3G Member
#977
Messages
51
Reaction score
64
Location
Alberta, Canada
First Name
Genna
Instagram
@gennaflinkhammer
2017 Midnight Black Sport Double Cab, Long Bed Automatic
I know I sound crazy, but I run my tires (265/70/17 e rated KO2's) at 40-41 psi. I did the chalk test, and have since had several rotations and am getting even wear on all 4 corners. I still trip out when I think of how high the pressures are but I seem to get the best mileage and good wear this way.

Is that cold pressure?
 

ninong671

2️⃣ Bronze
T3G Member
#889
Messages
40
Reaction score
24
Location
Fairfield, CA
2018 White Off-Road Double Cab, Short Bed Manual
Anyone else run their E rated tires at 80 psi? Currently running MT01's.
 

Bird dog

9️⃣ Legend
Tacoma3G Supporter
Tacoma3G O.G.
T3G Member
#659
Messages
2,842
Reaction score
5,810
Location
Peoria,AZ
First Name
DJ
2017 Barcelona Red Off-Road Double Cab, Short Bed Automatic
A little bumpy??? Drop the psi down around 35 .