Just bought a set of Hankook Ventus V12 evo k110's for my N/A base coupe.

All 4 tires are rated at 50 PSI max.

Just curious as to what others with these tires are running.

I filled all 4 tires to ~43 PSI yesterday.

Should I let air out? Fill them to 45 or so? Doesn't matter?

Just wondering.

Thanks,
Eric Henderson

 

I run all four of my Hankook's at 36psi.

I have no handling issues, well except for traction problems with the rear tires...but that isn't the tires' fault.

 

Can you verify that higher tire pressure = better MPG/worse ride quality?

Or is that a myth?

Thanks for the reply,
Eric

 

Fill them to what the door sticker says, not the tire. The tire lists the Max.

I may go a few pounds over for tire and fuel mileage on regular sidewall tires. Adding a few more pounds in the Crossfire changes the ride a bunch and very harsh. I inflate the tires to what the door sticker says.

 

While my front tires are the stock 225/40/18 size, my rear tires are larger than stock (275/35/19).

Is it wrong to have less pressure in the front tires than in the rear? Say... 36 PSI in front/40 in rear?

Is the door sticker only for stock tires? I'm at work right now and can't check

Thanks,
Eric

 

Personal preference, you are running way too much air pressure for me. 32 front and 33 rear for me and my car rides good. Your rear tires are larger than OEM, but still within reason.

I follow the door/jamb decal pressures unless you get to sizes that are extremely different than OEM.

James

 

Right on.

I'll let some air out and experiment.

I would have thought 32-33 PSI was too little, but if it works for you then great!

Thanks,

Eric

 

I may not be the right person to ask about mpg. I might get 18mpg in my SRT...strong emphasis on MIGHT.

Ride quality is what it is, I have had my SRT for over two years and have been in a crossfire for over three years...I'm just used to the bumps for the most part now.

 

Just putting it out there - I'm 18 years old.

No physical injuries or sore joints... no bad back or bad knees or squished @$$ fat (or whatever makes it hurt when you sit for a long time).. i'm not pregnant, I don't need one of those little donut things.

Ride quality doesn't much matter to me, just looking to get the most performance out of my tire without sacrificing too much of my MPG if I can save it.

I just filled my tires up yesterday from 36 PSI to 43 PSI and I felt like the ride was a little bit smoother over flat surfaces.

That being said, the roads I drive on to get to work are HORRIBLE. I probably wouldn't notice a difference in ride quality even if my tires were made out of rainbows and love.

Swapped out the steering stab last week, same time as I got the new tires and an alignment. I did notice a huge improvement from what I had before. (According to Sears who did my alignment, it was allllll messed up.) Also my poor Crossfire had some crap conti's on the front and two different rear tires. One was a michelin, the other a dunlop.

I just don't want to destroy my new tires too fast by over/under inflating, since they cost me close to a $1000.

Thanks,

Eric

 

I run the same pressure regardless of tire brand. It seems to be the sweet spot for the car.

 

If 50psi is the max, and you're running 43psi cold, you might be getting close to that 50 on a hot day or during spirited driving. You might wanna back it off a few psi to be on the safe side.

 

Good plan, i'll go let some air out right after work.

Thanks,

Eric

 

were did youb get your tires? i have the same v12's same for the fronts and 265/35-18 for the rears and mine were 652$ out the door mounted and balanced with an extra 60$ mail in rebate

 

I got them from America's tire. They had to order the rears, (which are $20 more per tire on the Tirerack.com price than the 265/35/18's).

Tirerack has my rear tires for $205.00 per tire (pre tax/shipping).

I also bought the warranties through America's tire in case I hit something in the road, etc (I think it was $19 per front tire and $34 per rear).

At least then I won't be @$$ out $235 or whatever.

I wanted to do a little more shopping around, but before I could I got a flat.

$963.33 was the total after tax/shipping costs/warranties.

And thanks for reminding me about the rebate! I have to fill that out still.

Regards,
Eric

 

Completely agree. I go with the door sticker inflation. Anymore than that and it gets very harsh.

 

Be careful jacking the tire pressure up. When you fill the tires it pulls the steel belts tighter and can make them wear in an odd pattern. I would think 32-36 psi would be a good profile for the tires. You will need to watch the wear pattern, vibration, gas mileage, etc. Let us know how it goes.

 

No that isn't a myth. It's a fact. Your tires won't last long though at high pressure because the middle of the tire will wear out real quick. Because only the middle will be in contact with the road. Not the way to go.
stick with the recommended pressures written on the door jam. Those are the pressures that I run off track. Vince