[clg82]

Hey everyone, finally got around to having the NT 555 RIIs installed on the car and doing some highway pulls I noticed that the "floating wiggle" feeling is back at high speeds. It's hard to explain but anyone with a ZL1 knows what i'm talking about . After installing the BMR Rear Cradle Lockout With the stock zl1 tires installed I didn't have this feeling, should I look at tire pressures with the new tires? If so what are you guys running on the NT555 RIIs on the street? Thanks for any help!

[GXP08jrf]

Do you have enough thermal cycles on the new tires to make a valid assessment? New tires tend to be "greasy" until all of the layers "adhere" to each other and "set".

[cdb95z28]

Originally Posted by GXP08jrf

Do you have enough thermal cycles on the new tires to make a valid assessment? New tires tend to be "greasy" until all of the layers "adhere" to each other and "set".

Spot on!

[clg82]

Originally Posted by GXP08jrf

Do you have enough thermal cycles on the new tires to make a valid assessment? New tires tend to be "greasy" until all of the layers "adhere" to each other and "set".

Hmm interesting idea. I drove them 40 miles on the highway, and than about 35 miles back home before my first pull....

[WhiteMale]

I would think that that's enough to get the mold release off of new tires but manuf usually want to say 500 miles. What pressures where you running at that time?

[KingLT1]

put them around 28-30psi for street use.

[clg82]

Originally Posted by WhiteMale

I would think that that's enough to get the mold release off of new tires but manuf usually want to say 500 miles. What pressures where you running at that time?

I didn't get a chance to check them, but after checking the fronts they were at 42 psi after the install so i'm assuming the rears were at the same, i'll have to take a look.

[clg82]

Originally Posted by KingLT1

put them around 28-30psi for street use.

will do King, thanks for the suggestion.

[GXP08jrf]

I don't think that's enough time/cycles. Give it at least a couple more weeks and reassess. I don't think there's a hard-and-fast rule as every manufacturer, compound and construction will be different.

My experience is 2-3 weeks before I feel that a new tire's performance starts to be consistent. This factors in the tire itself and my attention transitioning back to typical driving decisions instead of being critically focused on new tires.

That said the Nittos may like a wider pressure difference track vs street at various temperatures than what you're used to...

[cdb95z28]

IMO, those tires are sub-par for these cars.

[clg82]

Originally Posted by cdb95z28

IMO, those tires are sub-par for these cars.

Huh? Which ones would you suggest then? I've read nothing but good things here on the forums etc for these specific tires.

[WhiteMale]

agree 42 is much too high I piggy back on the 28-30 and some more break in time. YOu could of course do a couple of burnouts to get there quicker

[Joshinator99]

Originally Posted by cdb95z28

IMO, those tires are sub-par for these cars.

Would love to see what tires you recommend for street driven 800+ WHP cars.

[Dynamical]

Originally Posted by Joshinator99

Would love to see what tires you recommend for street driven 800+ WHP cars.

Slicks

Joking a side, I'm curious what the answer is also