Quote:
Originally Posted by LotsaMiles
My FR-S with Michelin PSS's is a completely different car.
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Quote:
Originally Posted by Bfranklyn86
I agree with this - putting PS4s on my 86 was transformative on road and track.
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Totally agree with the both of you here.
Talking about street tires, I slowly upgraded my tires to get a feel for the value I was receiving from the upgrades. So over the past 4 years, I upgraded slowly from:
- Michelin Primacy HP (240AA) to...
- Dunlop Direzza DZ102 (460 AAA) to...
- BFG Gforce Sport Comp 2 (340 AAA) to...
- Michelin Pilot Sport 4S (300 AAA-the MPSS replacements.)
Each of these tires was a
noticeable upgrade in all performance measures that the Primacy HPs.
The
Direzza 102's were a significant jump in low speed traction and braking at all speeds above the Primacy's.
The
BFGs improved all the above plus low speed traction, high speed stability, and braking above the Direzza's
Finally the
MP4S are a marked improvement in all the above categories as well as wet grip and comfort over the BFGs. Which kind of blew my mind because I was
very happy with the performance of the BFGs on the street. I simply had to try the follow up to the MPSS with the MP4S came out a reasonable 18" size.
The stock Primacy HP is a decent tire for a car that was stock intended to be flickable and fun, but it is nowhere close in performance to either the BFG Comp Sport 2 or the MP4S. And when referring to the MP4S, I mean the Primacy's are not even on the same continent, forget about the ballpark.
The Primacy is purposely a slow ass tire. I could
easily see seconds of lap time improvement when upgrading to BFGGSC2 or Michelin MP4S. Especially when the total performance envelope is considered in any of the common test tracks journalists are using. Higher performance street tires such as the top two noted above are not just an incremental performance improvement over Primacy HP, but instead a leap.