The great enigma of the Pirelli 355/25/19's

I few of us are running the 345 Michelin Pilot Super Sports on the rear. Taz is our resident wheel and tire expert. I'm sure he will chime in as soon as sees this thread.

 

Rears are 345/30/19
Fronts are 255/35/19
My car is down and I have not run this combo yet (They're new), but others have without issue. Because the rears are taller, you will have to lower the rear ride height about an inch. I have a 550 and Taz has a 575.

 

B- 255/35 19s and 345/30 19s in MPSS tires
have been working fine with no ABS problems.

 

Why would you want tires that wide? These cars don't have enough power to warrant such a silly width. Genuinely curious, as I'd need 700+hp before I'd even consider something like a 355.... Heck, the P1 has nearly 1000hp and runs on only a 315 at the rear.

With such big, wide, heavy tires (and wheels), you do know you're just slowing your car down.....right?

 

I feel your pain every time i need to replace them. That is if I can find them...lol

 

Yikes. And I thought going to 305/30ZR19s was stepping up a 456M. That's a lot of rubber. No understeering issues?

 

Do you have any pictures of it? I bet it looks pretty mean. By the way, love Grigio Ingrid (looks to be the color you have?)!

How's the understeer with such wide rears? Or do you push it that hard?

 

Speaking of looks, how is your front license plate anchored?

 

Beautiful car! You do have Grigio Ingrid. Now I'm jealous

On a side note: There's a Grigio Ingrid for sale but it's an autotragic....and I just don't think I can buy it with that transmission. I want a stick.

What wheels are those? I'm really surprised the tires fit so nicely. They don't stick out. I bet it looks great from behind. Must look like a tubbed muscle car.

Understeer is where the car runs wide to the outside of the turn. Oversteer (which I can't imagine you ever have with such massive rubber) is where the rear steps out.

Cheers,
Ricky

 

Wow, I didn't even notice they were corded. Looked like the tread was just worn down. Well then, my hat goes off to you. You obviously know how to drive. I wish there was more Ferrari owners like you out there. Too many of us baby their cars to a silly extreme. Me? I have mine out on the track every few weeks, and it's an absolute blast.

Funny you mention the collectability of the 456's... I too am convinced of the same thing, so I am rabidly searching for a gated manual 456 GT to buy (I'm insanely particular about colors, so it may take me a long time to find what I'm looking for). Personally, I like the GT over the GT/M, as I think the M isn't styled quite as nicely (nor do I like the interior quite as much on the M as in the "regular" GT).

Any chance you could change your rear camber a bit? Your left edge (inside or outside on your car? can't tell from the pic) is wearing quite a bit faster than the right side.

 

Please do, I very well may still be searching for one then! Bloody **** difficult to find one. Especially after you factor out the automatics.

 

I don't know if plateclips are still available. I heard that something may have happened to the owner of the company, which IIRC, was called Chairpilot. I have one for my 456m and it works great; on or off in 30 seconds and no holes or defacement.

 

I have fresh 345 MPSS on my 550 and I still get the occasional oversteer and tire chirp if I push the loud pedal coming out of a tight hairpin, even in bone dry conditions. The wheel/tire combination is clearly heavier than stock and the car must be slower ...but it's a road car that never sees the track so I'm not too fussed.

 

...I think I call dibs on her

Btw, I may have contributed to some of the tire wear, old picture the I dug up (always take my cars to the track several times a year, and the 456 was no exception), clearly showing it's GT nature with significant body roll and marginal brakes after a few laps. Handling is very forgiving not too much understeer (can easily adjusted with throttle) ...I think I may have some drifting pictures too, though showing those would be sacrilege in this forum
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