Review: ADVAN AD08 Tires

Discussion in 'Gen 2 Prius Accessories & Modifications' started by a_gray_prius, May 24, 2012.

  1. a_gray_prius

    a_gray_prius Rare Non-Old-Blowhard Priuschat Member

    Joined:
    Jun 13, 2008
    2,927
    780
    0
    Location:
    IL
    Vehicle:
    2008 Prius
    Model:
    N/A
    So I'm one of a handful of people who have put very high grip tires on a Prius. I've put near 35,000 miles on these tires over the course of ~3 years and I figured I'd make a debrief post since it's time to replace them.

    Here's my setup:
    - Prius Touring
    - Mounted on 16x6 RAYS CE28N Eco Drive
    - Stock suspension settings (for 95% of the use of the tires) and the car rides at stock height
    - Tire size: 205/55/16
    - Inflation range from 40-45 PSI

    First, I'll make one thing very clear: these are not tires for people who desire maximum MPG out of their car. The MPG hit with these tires mounted is significant - I average 41.5 MPG on these tires vs the 43 MPG with Nokian Hakkapellitta R snow tires and 46 MPG I got with stock Turanza EL400 LRR tires.

    With that out of the way, I have to say that putting these tires on the car completely transforms the way the car rides and handles. Steering becomes relatively heavy compared to stock, making the car feel substantial and solid. Inputs go from lazy to immediate. The ride

    On the highway at 70mph (and a track going even faster), the chassis goes from econobox to, well, German. On stock tires, it feels like pushing a amusement park go-kart to the limits of its performance envelope. The car felt like it was wandering in the lane, gusts of wind would push it around hard enough to concern family pets riding with me. Passengers would suggest that maybe we should stick to the minimum posted speed limit.

    With the ADVANs, the car felt present, planted on the road. 70mph seems trivial, a transitional stage to much much higher speed. It even rides a little like my other car, a Lancer Evolution IX (not necessarily surprising since stock tires on that car are the very similar ADVAN A046). Cornering improved dramatically - I only wish I had gone on a skidpad to see how hard the car would corner. Friends with (often substanitally) modified cars, ranging from boosted Civics to modded 911s asks the same question when I turn a corner at speed: "This is a Prius? What the ---- did you do to it?" There are tradeoffs made to gain the responsiveness and grip other than the MPG loss; the difference in sidewall rigidity means that the ride isn't as smooth and you feel every expansion joint and crack in the road. The sizing of my tires changes the ride height of the car ever so slightly, but enough to make me scrape the front of the car quite a bit more than stock. Also, you have to worry about keeping the tires above ~20 degrees F, which is a bigger pain than you would think when it's transition time between summer and winter tires (there were quite a few days where the high was in the 60s and low in the 20s inland).

    My next tire: probably the Dunlop Direzza Z1 Star Spec
     
    2 people like this.
  2. F8L

    F8L Protecting Habitat & AG Lands

    Joined:
    Aug 14, 2006
    19,011
    4,074
    50
    Location:
    Grass Valley, CA.
    Vehicle:
    Other Non-Hybrid
    Model:
    N/A
    Thanks for the review!

    Sometimes we differ in the priorities we place on a tire choice so it's good to see a bit of diversity. :)
     
  3. Daves09prius

    Daves09prius Active Member

    Joined:
    Nov 20, 2010
    680
    160
    0
    Location:
    Gettysburg, PA
    Vehicle:
    2009 Prius
    Model:
    One
    Thanks for the review, I always thought the stock tires were great for people who wanted to drive slow, I mean slooooooooooooow. - not the speed limit, but way slower than that! I'm not one of those people, I like tires that grip and allow the Prius to corner. Let us know if you switch to the dunlops and how you like those.
     
  4. F8L

    F8L Protecting Habitat & AG Lands

    Joined:
    Aug 14, 2006
    19,011
    4,074
    50
    Location:
    Grass Valley, CA.
    Vehicle:
    Other Non-Hybrid
    Model:
    N/A
    There are plenty of LRR tires that perform well and allow you to corner pretty hard.
     
  5. Fubar1764

    Fubar1764 Member

    Joined:
    Sep 10, 2012
    127
    41
    0
    Location:
    Houston, TX
    Vehicle:
    2008 Prius
    I run the Star Specs now on my Elise. Came down from Toyo R888s. Day and night difference as one might expect. I suspect the Star Specs will be similar to the A08s. I'm thinking about doing stock non-Touring when I need to replace the tires on my as-yet-undelivered '08 Prius #6. What are your thoughts on those tires (or A08s) in a stock setup?
     
Loading...