Mixing Cup2's tyres with PS4s

JB M4 · 06-07-2017, 12:08 PM

I want to run cup 2's on my car but I'm running 20's all around but they don't make cup2's in 265/30/20...they make the 295/30/20 rears....Do you think i could match them with pilot sport 4s's in the front..? I don't track only spirited street driving...

Fugazii · 06-07-2017, 04:10 PM

Contact David @ Wheels Boutique for a honest answer he will know. (305) 484-9120 he also sells both tires I purchased the same one's good luck...

CPWINCH · 06-07-2017, 05:44 PM

I wouldnt

Woodengun · 06-08-2017, 01:12 AM

Understeer is a horrible horrible horrible thing.

AhsanU · 06-08-2017, 03:30 AM

As mentioned above, you'll experience understeer since your rear tyres are grippier.

That being said, I know plenty of local people that are running sticky as hell Nitto's or MT's in the rear, with random tyres up front because all they do is strive for straight line performance.

elmerzasty · 06-08-2017, 03:40 AM

Mixing compounds is generally never a good idea, because the balance of the car will change with temperature and make it less predictable.

If your prefer something stickier than PSS/PS4S, take a look at P Zero Corsa. You could go with 255/30 and 295/30.

JB M4 · 06-08-2017, 05:16 AM

Thanks for the input guys...I'll hold of until maybe they make it later or cup 3's come out

M3SQRD · 06-08-2017, 05:18 AM

I would not mix PSC2 and PS4 tires. As others have stated, it will have an adverse effect on balance, predictability (grip vs. temperature), and F-to-R hydroplaning resistance.

I'm running PSC2s F and R and their grip level is much higher than the PSS, and I'm sure the PS4 as well. I can't imagine what the car would feel like with the huge loss of grip on the F by switching from PSC2 to PSS/PS4; however, it definitely would not be good!

06-07-2017, 12:08 PM	#1
JB M4 Private First Class 107 Rep 167 Posts Drives: BMW M4 Join Date: Mar 2016 Location: New York/Bahrain iTrader: (0)	Mixing Cup2's tyres with PS4s I want to run cup 2's on my car but I'm running 20's all around but they don't make cup2's in 265/30/20...they make the 295/30/20 rears....Do you think i could match them with pilot sport 4s's in the front..? I don't track only spirited street driving...
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06-07-2017, 04:10 PM	#2
Fugazii Captain 235 Rep 755 Posts Drives: G82/2022 Join Date: Sep 2016 Location: WPB iTrader: (0)	Contact David @ Wheels Boutique for a honest answer he will know. (305) 484-9120 he also sells both tires I purchased the same one's good luck...
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06-07-2017, 05:44 PM	#3
CPWINCH Brigadier General 734 Rep 4,635 Posts Drives: Toyota Prius Join Date: May 2010 Location: Los Angeles iTrader: (7)	I wouldnt __________________ Follow my BMW instagram @CARMODIFICATION Let me know you are from bimmerpost and i'll follow back
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06-08-2017, 01:12 AM	#4
Woodengun Lieutenant 310 Rep 408 Posts Drives: Yugo Join Date: Apr 2015 Location: Norcal iTrader: (0)	Understeer is a horrible horrible horrible thing.
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06-08-2017, 03:30 AM	#5
AhsanU i can haz horsepowr ?? 3830 Rep 1,927 Posts Drives: inconspicuous white van Join Date: Jun 2012 Location: Westchester, N.Y. iTrader: (2)	As mentioned above, you'll experience understeer since your rear tyres are grippier. That being said, I know plenty of local people that are running sticky as hell Nitto's or MT's in the rear, with random tyres up front because all they do is strive for straight line performance.
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06-08-2017, 03:40 AM	#6
elmerzasty Private First Class 69 Rep 193 Posts Drives: F80 Join Date: Jun 2015 Location: Poland iTrader: (0)	Mixing compounds is generally never a good idea, because the balance of the car will change with temperature and make it less predictable. If your prefer something stickier than PSS/PS4S, take a look at P Zero Corsa. You could go with 255/30 and 295/30.
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06-08-2017, 05:16 AM	#7
JB M4 Private First Class 107 Rep 167 Posts Drives: BMW M4 Join Date: Mar 2016 Location: New York/Bahrain iTrader: (0)	Thanks for the input guys...I'll hold of until maybe they make it later or cup 3's come out
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06-08-2017, 05:18 AM	#8
M3SQRD Major General 2164 Rep 5,548 Posts Drives: E92 M3,G20 330ix,F22 240iX,F82 Join Date: Jun 2009 Location: Mid-Atlantic iTrader: (11)	I would not mix PSC2 and PS4 tires. As others have stated, it will have an adverse effect on balance, predictability (grip vs. temperature), and F-to-R hydroplaning resistance. I'm running PSC2s F and R and their grip level is much higher than the PSS, and I'm sure the PS4 as well. I can't imagine what the car would feel like with the huge loss of grip on the F by switching from PSC2 to PSS/PS4; however, it definitely would not be good!
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