Wheel and tire spec fitment questions - Page 2

SgtRick · 02-29-2020, 10:39 PM

Quote:

Originally Posted by gotswap

Have some wheels coming in the below specs and am wanting to run 315/30r20 rear and 295/30r20 front. Anyone see any concerns with this before I order tires?

2019ZL1, stock suspension

20x10.5 20mm offset front
20x11.5 48mm offset rear

I think your 48mm offset will cause your tires to rub on the liner. I know I use Forgestar F14 rims with 44mm offset and my 305/45/17 barely clear the inner liner. I moved the wiring harness for safety.

Intimidator · 03-01-2020, 10:31 AM

I have Polished MRR FSO5 and Drift R wheels.
Both are 20x10 (+20 offset) and 20x11 (+43 offset)
I am running 295/30/20 and 325/30/20 SC2 on the MRR with ZERO issues.

Markoz28 · 03-01-2020, 10:53 AM

Quote:

Originally Posted by arpad_m

Thanks for the info

I'm about to throw on 20x11's with a +43 offset and 315/30 tires once the car's out of hibernation, and been wondering if I can get away with it and not use spacers.

The liner is no problem, but of course I want to ensure proper fender and suspension clearance, plus wheel-size.com says that'll make the scrub radius negative 7, which is suboptimal for the ride, but I guess I'll have to try and see

You should have no problems with that set up. I would still move the wire in board. Just for peace of mind.

arpad_m · 03-01-2020, 12:22 PM

Quote:

Originally Posted by Markoz28

You should have no problems with that set up. I would still move the wire in board. Just for peace of mind.

Done, Sir. Thank you again for the input.

gotswap · 03-02-2020, 08:46 AM

If I do need to run a spacer to push the wheel out. What is the max recommended safe thickness before needing longer studs?

EDFHOBBIES · 03-02-2020, 09:13 AM

Picking up a friends OEM zl1 1le's today 19x11 ET11mm 19x12 ET41MM..

Gonna run the 295 25 30 up front from the ACR viper kumho v720 track tire $180.00ea
Rear I will take off the 345 30 19 R88Rs and through them on the zl1 1le oem 12 inch rim right now they are on the Mrr reproductions.

Probably go with something quieter and less expensive to replace than the R888Rs for daily driving...

Had good luck with the PS91 kumho on the SS quite and good wet traction and dry traction!

You need something that can hold the eforce! gotswap!

gotswap · 03-02-2020, 09:50 AM

Quote:

Originally Posted by EDFHOBBIES

Picking up a friends OEM zl1 1le's today 19x11 ET11mm 19x12 ET41MM..

Gonna run the 295 25 30 up front from the ACR viper kumho v720 track tire $180.00ea
Rear I will take off the 345 30 19 R88Rs and through them on the zl1 1le oem 12 inch rim right now they are on the Mrr reproductions.

Probably go with something quieter and less expensive to replace than the R888Rs for daily driving...

Had good luck with the PS91 kumho on the SS quite and good wet traction and dry traction!

You need something that can hold the eforce! gotswap!

Tell me about it, the 980A/S are great in the weather but they don't like the power

I am really leaning to the new Advan tires

EDFHOBBIES · 03-02-2020, 10:19 AM

Quote:

Originally Posted by gotswap

Tell me about it, the 980A/S are great in the weather but they don't like the power

I am really leaning to the new Advan tires

ya there 2 on ebay for 399.99 right now..

I saw 2 PZ4 corsa new for 399.00 not the old 5th gen crap these are Mclaren or lambo oem tires with good tread and 80 AA tread life so super soft!

TheRealJA105 · 03-02-2020, 01:10 PM

Quote:

Originally Posted by EDFHOBBIES

Picking up a friends OEM zl1 1le's today 19x11 ET11mm 19x12 ET41MM..

Gonna run the 295 25 30 up front from the ACR viper kumho v720 track tire $180.00ea
Rear I will take off the 345 30 19 R88Rs and through them on the zl1 1le oem 12 inch rim right now they are on the Mrr reproductions.

Probably go with something quieter and less expensive to replace than the R888Rs for daily driving...

Had good luck with the PS91 kumho on the SS quite and good wet traction and dry traction!

You need something that can hold the eforce! gotswap!

Following to see if this MASSIVE 2.34" tire diameter difference renders your car unmovable or not.

EDFHOBBIES · 03-02-2020, 01:19 PM

Running 345 for last 8 mos gonna try 355 next time

TheRealJA105 · 03-02-2020, 01:52 PM

Quote:

Originally Posted by EDFHOBBIES

Running 335 for last 8 mos gonna try 355 next time

With 295/25 fronts? That's what I'm concerned with, the F/R diameter difference.

arpad_m · 03-10-2020, 10:29 AM

Quote:

Originally Posted by gotswap

If I do need to run a spacer to push the wheel out. What is the max recommended safe thickness before needing longer studs?

Now that I have seen and tried things, I'd say 5 mm is the absolute max, it leaves 8 threads engaged with the OE studs.

EDFHOBBIES · 03-10-2020, 12:42 PM

Quote:

Originally Posted by TheRealJA105

With 295/25 fronts? That's what I'm concerned with, the F/R diameter difference.

What's the concern?

Markoz28 · 03-10-2020, 01:20 PM

A 295/25/19 is a very thin/short tire. Not sure why you would want that?

03-02-2020, 08:46 AM	#19
gotswap Drives: 2019 ZL1 Crush Join Date: Jan 2019 Location: Colorado Springs Posts: 564	If I do need to run a spacer to push the wheel out. What is the max recommended safe thickness before needing longer studs? __________________ 2019 Crush A10 E-Force 2650 670WHP 615WTQ All besides the 2650 is bone stock down to the air filter.

03-02-2020, 09:13 AM	#20
EDFHOBBIES Dyno Show Queen LOL Drives: 16 SS & 17 ZL1 Both Yellow Join Date: Jan 2014 Location: Houston Posts: 4,345 View My Garage	Picking up a friends OEM zl1 1le's today 19x11 ET11mm 19x12 ET41MM.. Gonna run the 295 25 30 up front from the ACR viper kumho v720 track tire $180.00ea Rear I will take off the 345 30 19 R88Rs and through them on the zl1 1le oem 12 inch rim right now they are on the Mrr reproductions. Probably go with something quieter and less expensive to replace than the R888Rs for daily driving... Had good luck with the PS91 kumho on the SS quite and good wet traction and dry traction! You need something that can hold the eforce! gotswap! __________________ Kong Ported 2650, Crawford Racing Port Injection, Weapon X 112mm Adapter, NW112mm TB, Livernois Ported LT4 Heads, Lingenfelter GT32 stealth cam, Haltech Elite, and Carbon by Trufiber

03-02-2020, 01:19 PM	#24
EDFHOBBIES Dyno Show Queen LOL Drives: 16 SS & 17 ZL1 Both Yellow Join Date: Jan 2014 Location: Houston Posts: 4,345 View My Garage	Running 345 for last 8 mos gonna try 355 next time __________________ Kong Ported 2650, Crawford Racing Port Injection, Weapon X 112mm Adapter, NW112mm TB, Livernois Ported LT4 Heads, Lingenfelter GT32 stealth cam, Haltech Elite, and Carbon by Trufiber Last edited by EDFHOBBIES; 03-10-2020 at 12:41 PM.

03-01-2020, 10:31 AM	#16
Intimidator Drives: 69 GTO, 05 GTO, 2018 Silver ZL1 Join Date: Jan 2012 Location: Springfield, OH Posts: 847	I have Polished MRR FSO5 and Drift R wheels. Both are 20x10 (+20 offset) and 20x11 (+43 offset) I am running 295/30/20 and 325/30/20 SC2 on the MRR with ZERO issues.

03-10-2020, 01:20 PM	#28
Markoz28 Drives: 18 ZL1 nightfall grey A10 Join Date: Apr 2018 Location: RGV Texas Posts: 1,527	A 295/25/19 is a very thin/short tire. Not sure why you would want that?

User Name		Remember Me?
Password