05-09 Exterior ModificationsMaking Your '05 Stand Out from the Crowd
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Also do I need to flash my car to compensate for the larger tires?
If the height of the rim and tire are close to the original size I would say no you don't. Your speedometer might be slightly off. There are several calculators on the web that will tell you the % of size difference. Use google or search these forums and I am sure you can find one.
If the height of the rim and tire are close to the original size I would say no you don't. Your speedometer might be slightly off. There are several calculators on the web that will tell you the % of size difference. Use google or search these forums and I am sure you can find one.
Alright thanks I was worried about that before I did some major driving.
Thanks and yes they are 20s I have the FRPP shocks and struts all the way around. Lowered the car about an inch.
The springs make a huge difference, I really like the way it sits. I think that sometimes 20s on a stock height car look awkward, your car has a nice stance.
So when my tires came in they had a sticker on the boxes saying they were filled to 44psi and should be adjusted to obtain good tread wear. The max on the tires is 50psi. What do I set them at??
I'm currently running 255/35/20 in the front at 36 psi and 275/35/20 in the rear at 34 psi and I like the ride quality at these pressures. My tire shop recommended I run them at 40 psi , but that's to harsh a ride for me. You want to make sure you don't go too low , I was running a previous set of KDW2's at 32 psi in the front and 30 psi in the rear and that was too low. The tire wear and the ride were perfect , they had 18K miles on them and still looked new. However because the pressure was too low , the tread started to separate with hair line cracks on the edge, so make sure you don't go too low. I read somewhere one time that a rule of thumb was 2 psi above OEM pressure for every inch increase in wheel diameter ...
__________________ PERFORMANCE:
MagnaCharger , Steeda 90mm CAI, FRPP Hot Rod Cams, FRPP 62mm TB, MagnaFlow Axle Back Exhaust, BBK Long Tubes & catted X-Pipe, GT500 fuel pumps, WeaponX COP's. SUSPENSION/DRIVETRAIN: Steeda : Sport springs, HD duty upper strut mounts, Bumpsteer, 3 point frame rail & torque box brace, billet LCA's and relocation brackets, Comp Upper 3rd Link , heavy duty engine mounts, G-trac Brace, Aluminium Drive shaft, adj pan hard bar and brace.
I'm currently running 255/35/20 in the front at 36 psi and 275/35/20 in the rear at 34 psi and I like the ride quality at these pressures. My tire shop recommended I run them at 40 psi , but that's to harsh a ride for me. You want to make sure you don't go too low , I was running a previous set of KDW2's at 32 psi in the front and 30 psi in the rear and that was too low. The tire wear and the ride were perfect , they had 18K miles on them and still looked new. However because the pressure was too low , the tread started to separate with hair line cracks on the edge, so make sure you don't go too low. I read somewhere one time that a rule of thumb was 2 psi above OEM pressure for every inch increase in wheel diameter ...
On my 255/35/20s I set all four at 36 psi. I drove them at 44psi for a mile and it felt like I was floating and every bump would move the steering !
Scott's 2008 GT/CS
Silver Skoundrel
Linear Mode
