Notices
C6 Corvette ZR1 & Z06 General info about GM’s Corvette Supercar, LS9 Corvette Technical Info, Performance Upgrades, Suspension Setup for Street or Track
Sponsored by:
Sponsored by: Kraken

[Z06] Need help picking tires: ZR1 Wheel: 20x12, 19x10

Thread Tools
 
Search this Thread
 
Old 07-25-2016, 06:44 PM
  #1  
t1blackout
Instructor
Thread Starter
 
t1blackout's Avatar
 
Member Since: Sep 2004
Posts: 124
Received 1 Like on 1 Post

Default Need help picking tires: ZR1 Wheel: 20x12, 19x10

Hey guys!

I'm a little torn as to which tire to select for my 2006 Z06 that has ZR1 wheels on it. They are 20x12 and 19x10. I have a built motor putting down ~800rwhp so traction will be a serious issue.

I can't decide between the non-run-flat Nitto INVO and the run-flat Michelin Pilot Sport Cup 2 ZP or SS...

Am I ok to go with 345 in the back and 285 in the front? I don't want any rubbing issues. Any recommendations on what I should get or where I should go? I like driving on back roads so a non-radial is out of the question unless I switch wheels/tires at the drag strip.

Thanks!
Old 07-25-2016, 08:09 PM
  #2  
User Omega
Melting Slicks
 
User Omega's Avatar
 
Member Since: Mar 2016
Location: Indianapolis IN
Posts: 2,211
Received 230 Likes on 208 Posts
Default

If you plan on running the car and hooking up you want to get far far away from a 20" wheel. You also do not want a run flat. My car at nearly 600whp wont hold 2nd gear on my 20" wheels with 345 Nitto Invos. I realize that isn't the stickiest option for a tire but when adding another 200 whp to the mix, I dont think it will matter.
Old 07-26-2016, 12:21 AM
  #3  
t1blackout
Instructor
Thread Starter
 
t1blackout's Avatar
 
Member Since: Sep 2004
Posts: 124
Received 1 Like on 1 Post

Default

I already have the rims. What is the best tire possible for street performance in stock ZR1 size?
Old 07-26-2016, 12:47 AM
  #4  
DUMAN
Le Mans Master
Support Corvetteforum!
 
DUMAN's Avatar
 
Member Since: Feb 2007
Location: Danville Ca.
Posts: 5,486
Received 23 Likes on 21 Posts
St. Jude Donor '10

Default

Super sports or cups. The invos suck!
800whp none of these will hold. Lol
Old 07-26-2016, 01:09 AM
  #5  
AzDave47
Race Director
Support Corvetteforum!
 
AzDave47's Avatar
 
Member Since: Feb 2011
Location: AZ
Posts: 13,238
Received 4,509 Likes on 2,598 Posts

Default

If you want to use your 800HP, then you seem to be a straight line guy. Get the MT ET S/S for the rear in 335/25-20.

Since you won't corner hard on the ET rears, the Invo fronts would be OK.

If you are interested in handling (no cornering street tire will hold 800 HP) and don't care about tire wear (the MT's won't last long either) consider the M PSC2 ZP's that come standard on the C7 Z06 W/Z07 package. They are a real pain to mount and big $.

Despite what a few say, the Invos are not a real performance tire. They are inexpensive, quiet, nice ride and very good treadwear. When new, they only compare favorably to worn out cold Goodyear runcraps for grip. If you just did modest road cruising all the time they are great for that. From a grip standpoint they are a step down from NT-05's which are at least one step down from the M PSS. The PSS won't hold your 800 HP.
Old 07-26-2016, 03:53 AM
  #6  
User Omega
Melting Slicks
 
User Omega's Avatar
 
Member Since: Mar 2016
Location: Indianapolis IN
Posts: 2,211
Received 230 Likes on 208 Posts
Default

Originally Posted by AzDave47
If you want to use your 800HP, then you seem to be a straight line guy. Get the MT ET S/S for the rear in 335/25-20.

Since you won't corner hard on the ET rears, the Invo fronts would be OK.

If you are interested in handling (no cornering street tire will hold 800 HP) and don't care about tire wear (the MT's won't last long either) consider the M PSC2 ZP's that come standard on the C7 Z06 W/Z07 package. They are a real pain to mount and big $.

Despite what a few say, the Invos are not a real performance tire. They are inexpensive, quiet, nice ride and very good treadwear. When new, they only compare favorably to worn out cold Goodyear runcraps for grip. If you just did modest road cruising all the time they are great for that. From a grip standpoint they are a step down from NT-05's which are at least one step down from the M PSS. The PSS won't hold your 800 HP.
Very well said. They work great for those of us who reserve the dumb for the track days on another set of wheels/tires.
Old 07-26-2016, 11:05 AM
  #7  
t1blackout
Instructor
Thread Starter
 
t1blackout's Avatar
 
Member Since: Sep 2004
Posts: 124
Received 1 Like on 1 Post

Default

Thanks for the advice!!! I'm going to go with the Sport Cup 2 Runflats

Originally Posted by AzDave47
If you want to use your 800HP, then you seem to be a straight line guy. Get the MT ET S/S for the rear in 335/25-20.

Since you won't corner hard on the ET rears, the Invo fronts would be OK.

If you are interested in handling (no cornering street tire will hold 800 HP) and don't care about tire wear (the MT's won't last long either) consider the M PSC2 ZP's that come standard on the C7 Z06 W/Z07 package. They are a real pain to mount and big $.

Despite what a few say, the Invos are not a real performance tire. They are inexpensive, quiet, nice ride and very good treadwear. When new, they only compare favorably to worn out cold Goodyear runcraps for grip. If you just did modest road cruising all the time they are great for that. From a grip standpoint they are a step down from NT-05's which are at least one step down from the M PSS. The PSS won't hold your 800 HP.
Old 07-26-2016, 11:50 AM
  #8  
pkincy
Safety Car
 
pkincy's Avatar
 
Member Since: Jun 2003
Location: San Diego Ca
Posts: 4,276
Received 645 Likes on 485 Posts

Default

Stock suspension? The 19/20 low profile RF SCs have very stiff sidewalls. I don't mind them but they are significantly stiffer than non RF and those are significantly stiffer than 18/19s particularly in 285/345 sizes. Simply a matter of amount of sidewall and stiffness of sidewall. I do have Rippe valved Bilsteins so maybe a bit stiffer than stock.

I agree with the mounting problems. Had to add 08 TPMSs to my buy of 2013 ZR1 wheels with RF SC2s. Took the guys at Discount 2 and 1/2 hours to do the 4 tire change and remount. And they had 2 people working on it constantly. They did do a very good job however with no wheel scratches or damage. For that reason alone I would go to the non RF SCs in the future. Or for better all around use, the MPSSs. I have all the above (incl Nitto Invos) mounted on my 4 sets of wheels. The MPSSs are the best all around, the SC ZPs the most fun, the Nittos......OK. In fact if you were local I would happily take off the Invos and sell them to you cheap and put on non RF SC2s.
Old 07-26-2016, 04:25 PM
  #9  
t1blackout
Instructor
Thread Starter
 
t1blackout's Avatar
 
Member Since: Sep 2004
Posts: 124
Received 1 Like on 1 Post

Default

I wish the MSC2's came in non-runflat for my size but apparently not.

Originally Posted by pkincy
Stock suspension? The 19/20 low profile RF SCs have very stiff sidewalls. I don't mind them but they are significantly stiffer than non RF and those are significantly stiffer than 18/19s particularly in 285/345 sizes. Simply a matter of amount of sidewall and stiffness of sidewall. I do have Rippe valved Bilsteins so maybe a bit stiffer than stock.

I agree with the mounting problems. Had to add 08 TPMSs to my buy of 2013 ZR1 wheels with RF SC2s. Took the guys at Discount 2 and 1/2 hours to do the 4 tire change and remount. And they had 2 people working on it constantly. They did do a very good job however with no wheel scratches or damage. For that reason alone I would go to the non RF SCs in the future. Or for better all around use, the MPSSs. I have all the above (incl Nitto Invos) mounted on my 4 sets of wheels. The MPSSs are the best all around, the SC ZPs the most fun, the Nittos......OK. In fact if you were local I would happily take off the Invos and sell them to you cheap and put on non RF SC2s.
Old 07-26-2016, 04:50 PM
  #10  
AzDave47
Race Director
Support Corvetteforum!
 
AzDave47's Avatar
 
Member Since: Feb 2011
Location: AZ
Posts: 13,238
Received 4,509 Likes on 2,598 Posts

Default

Originally Posted by t1blackout
I wish the MSC2's came in non-runflat for my size but apparently not.
It was the OEM tire for the C7 Z06/w Z07 option and GM has specified ZP/run-flats since the C6's came out if not before. Otherwise no PSC2 would exist in those sizes.
The following users liked this post:
t1blackout (07-30-2016)
Old 07-26-2016, 05:31 PM
  #11  
pkincy
Safety Car
 
pkincy's Avatar
 
Member Since: Jun 2003
Location: San Diego Ca
Posts: 4,276
Received 645 Likes on 485 Posts

Default

Actual 295/30/19 and 325/25/20's do exist in SC2s non RF.

Get notified of new replies

To Need help picking tires: ZR1 Wheel: 20x12, 19x10




Quick Reply: [Z06] Need help picking tires: ZR1 Wheel: 20x12, 19x10



All times are GMT -4. The time now is 06:50 PM.