430 New generation tyres effect on performance?

Obviously mostly will affect lap times. I don’t think acceleration is traction limited. A significant difference in lap times, I’d say. Modern performance tires have the grip of race tires of not that long ago. Much depends also on breakaway characteristics. If that is gradual and predictable, you will be faster over a grippier tire that is not predictable.


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in 2004, we already had PS2 I believe. PSS is a class above, but PS4 isn't a lot better than PSS in the dry (it is a generation better in wet performance however). so lap time didn't improve as much as you would of guessed for standard Ferrari performance tire (PSS/PS4/Zero) as you might believe.

most of tire technologies (in terms of dry performance) have been in "track" tires. most notebale in last few years has been the "super 200tw" tires that's dominating HPDE and autocross. They are stickier and do not last as long as 100tw "race tires" of early 2010's like NT01, R888. These super 200tw tires came from Autocross and Time Attack that has a 200tw rule, and since there is no "testing sanction body" for treadwear rating, tire manufacturer cheats like hell.

early 2010s you have RS3, v720, 615, R1R, Z1 star spec, etc....
then in mid 2010s, RE71R came out and blew everyone away... then Rival 1.5 and RS4 came along, almost as good as RE71R depending on the condition.
there are a ton of also rans like Z2 Star Spec, 615k+, SUR4G, etc... This group of tires are faster than PS4 and Zero, but not as fast as RE71R.

then in 2018, A052 came out and just edging out RE71R. A052 is currently king of 200tw street tires, just barely and not for long.

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R-comp track tires have been stagnate for a while, since RA1, R888 and NT01 of decade ago (along with RR and Hoosier R7/A7, a different class of tires). It was no faster than modern super 200tw tires. it wasn't until a couple of years ago, we have a new batch of super R-comp tires. notably the new SC2-R,Trofeo R and 3R. These are very very fast. Almost Hoosier like but can be driven to race track.

note I didn't mention SC2, as it really is a "brand" more than a model. There are fast SC2 that wears like crazy and there are slower SC2 that last a long time. They even make different compound (model #) for the same size.

 

The three OEM approved tyres for the F430 worldwide when it came out were P Zero, MPSS and Potenza.

 

Interesting info thank you. You mean PS4S, yes, not PS4? They are different tyres. PS4S is officially designated as successor to PSS. PS4 is a cruiser.

Subjectively the PS4Ss I just fitted to my F430 seem both softer and stickier than the PZero and even the PSS. No idea about track times.

Handling characteristics is another question. The cars were developed with the E diff to behave at the limit in a certain way with the original tyres. apart from higher overall grip, what difference does new tech make? Hard to tell on the road so far for me, though I'm starting to wonder if grip levels higher but breakaway less predictable.

 

yes, I meant PS4S. just lazy typing it out. Rival 1.5 should say Rival S 1.5. etc...

if you've never tried the 200tw performance tire, you are missing out. Any of the ones I listed will be faster than PS4S/PSS/Zero, but RE71R, Rival S 1.5 or A052 is in another level of performance. None of them will last you 10k miles and will be loud, but most Ferrari tires ages out before treads are worn.
or crazier yet, try those new SC2-R, 3R, Trofeo-R (all are extremely limited in sizes) if you never take your Ferrari out in heavy rain and drive less than 2k miles per year. you will be astonished by their performance...

problem with all these tires are tire sizes are limited. They are designed for track rats. SC2-R started with GT2-RS. 3R started with ZL1-1LE. RE71-R/Rival S/A052 started in Autocross classes. so you can't be picky on models if you want fast tires.

 

I remember looking into some of these after you suggested these before...think they are hard to track down for 430 wheel sizes...

 

I have this size on mine. you can get RE71R or Trofeo R in this combo.
235/35-19
285/35-19

don't forget Scud came with 235 in front (F430 came with 225)

 

Got it thanks. So 10mm wider on fronts.

 

no, still significant. like I said, PSS already is a class above (PS2/Pzero). so still significant. I would guess couple of second difference per lap.
regardless, buy some performance tires. It is after all a Ferrari. I doubt you need a tire that lasts forever, quiet and comfortable (if you do, go with PS4S). most Ferrari's tire ages out before they are worn out..... tire noise is rarely an issue, you not gonna hear it with Ferrari exhuast...