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2000 gtp tire air pressure?

Tonkin2000GT

Tonkin2000GT

New member
I was curious what all of you guys thought about the amount of air pressure I should run in my car? It's basically new it's making about 300whp and I have 18x8 chrome rims on the car with falken 245/45/18 tires the car is a summer car only I live in a town where there are plenty of potholes what's a safe psi low enough to help the car hook up but not to low to damage the rim with the roads? The car is stock height because of the roads but I put brand new kyb agx struts that are on 2 front and rear for the dampening with zzp strut tower braces front and rear let me know what you think thanks.
 


stealthee said:
Run 32-35 psi. You shouldn't lower your tire pressure for daily driving purposes.
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Yeah that's about what I've always run them at they are at like 32 right now I've run them at 30 but that's the lowest I've ever gone. The reason I ask is because with it being a front wheel drive car the front tires look low compared to the rear even though everyone always comments and says my tires look flat/low.
 
Okay thanks. Anyone that has kyb agx struts notice a harder ride? I have them on setting 2 for the dampening that's how they came was thinking about going to 1.
 
I wouldn't go below 30. A little more in front makes sense to me, after all theres a heavier load on the same tire there. You want to be ready for potholes but also for jerks who give you a choice of swerve or wreck. The way to hook up is to use tires with softer compound and keep inflation reasonable, say 35-40 depending on tire construction. The tires rated for less treadwear (softer) also ride WAY better than high-mile ones do, and you probably would like them fine with normal pressure.
 


idrivejunk said:
I wouldn't go below 30. A little more in front makes sense to me, after all theres a heavier load on the same tire there. You want to be ready for potholes but also for jerks who give you a choice of swerve or wreck. The way to hook up is to use tires with softer compound and keep inflation reasonable, say 35-40 depending on tire construction. The tires rated for less treadwear (softer) also ride WAY better than high-mile ones do, and you probably would like them fine with normal pressure.
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Yea these falken tires are softer they are a 40,000 mile tire that cost about $200 each. Debating on if it would drive better with more air pressure or not.
 
Your tread wear that you experience from here on out can be your indicator of how much pressure to run. If you're scrubbing off the outsides edges of tread while the middle isn't wearing much, you need more pressure.
 
Nope, I ran KYB GR2's for cost and ride quality, they ran like stock with minor bouncy-ness to them. I don't own the car anymore.

Lowering wouldnt make a huge difference either though, most guys never drop more than 1.5in anyway.
 


I have 20" and run pirelli and love em at 45psi they grip twice as well as any tire I have had on the car. I recently installed new struts and springs I am trying to dial in the camber just right but I haven't had any odd tire wear. The tires were ridiculous expensive but worth every penny. I almost took the rims off and changed them but decoded to try one more set of tires. I think I'm now content with things finally and thousands later haha

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I'd double check the tires that you run to make sure 45 psi even safe.

They do say on the sidewalls the maximum tire psi they can take at their max load per corner, it's not a good idea to exceed that ever. Most passenger car tires are either 40-44 psi, unless they are extra load bearing tires.
 
That max is 56psi I believe, like I said I run 45 in all 4. They're 235/35 on 20s when I had them mounted they only put 32 psi and even as low profile as they are they felt balloon-ish after bumping it up to 45 they feel great. I did have good year 245/35 and they were decent rubber but sad thing is if I had a car full and I hit a dip hard enough it would rub in the tire well. I have had no such issues with the pirreli they are wrapped in now. I was honestly thinking about changing rim size as well but not anymore. The new tires make me want to push it even harder. With absolutely no rub with a carfull of folks and a full trunk. Different stroked for different folks for sure. I do love my new rubber alot

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