Homepage Garage Wiki Register Social Groups Calendar Search Today's Posts Mark Forums Read
#Camaro6
Go Back   CAMARO6 > Technical Camaro Topics > Wheels | Tires -- Sponsored by The Tire Rack


Phastek Performance


View Poll Results: Which setup would work?
305/30/20 with a 19"x11"(or 10.5") +18 3 16.67%
305/30/19 with a 19"x11"(or 10.5") +18 12 66.67%
Other (Stated below) 3 16.67%
Voters: 18. You may not vote on this poll

Post Reply
 
Thread Tools
Old 03-22-2018, 02:41 PM   #1
RacerX78
 
Drives: 2018 Camaro SS 1LE
Join Date: Mar 2018
Location: Ohio
Posts: 51
POLL: 305/30 Square AutoX/Track Only Setup on 19" or 20"?

So one of my primary intentions with my purchase of the 1LE was to use it for HPDE and AutoX. To do this properly I plan on getting a dedicated set of racing tires and rims. I'd like to do a square setup for a few different reason, including the fact that there are more options for tires when you are only shopping for one size, and tires will last longer because of rotation.

I've looked at seanblurr tread "Mounted: 19x10.5/11 305 square MRR track wheels on 1LE" and i know that is a workable option. I also know Summit1le1ss' Tread "1LE square setup" has a lot of opinions thrown around but no real consensus.

What i'd like to know if the MRR FS01 would work up front, in the following configurations with no other modifications to the car or suspension components.
  • 305/30/20 with a 20"x11"(or 10.5") +18. This would be 8 mm (0.3'') closer to suspension/brakes components, will stick out 12 mm (0.5'') farther & will fill out the wheelwell by extra 6 mm (.24").
  • 305/30/19 with a 19"x11"(or 10.5") +18. This would be 8 mm (0.3'') closer to suspension/brakes components, will stick out 12 mm (0.5'') farther & will leaves even more wheelwell room than OEM.
The first option gives me more tire options and is doesn't change OEM gearing ratios. I know room is tight next to the front strut tower but its only .3" closer, and sticks out only .5". Seanblurr's setup is .2" closer to the suspension, sticks out .6" and .5" shorter than stock. So its very close. My concern with this setup is its proximity to the shock mount. I don't know how much space i have, but I know its not much.


The second option gives you more room from the suspension at the cost of some gearing and tire selection. I'm okay with that if fitment is better/safer.

I'm trying to keep the setup as close to stock as possible, as i need both suspension and fender clearance for tight bumpy courses.
RacerX78 is offline   Reply With Quote
Old 03-22-2018, 03:22 PM   #2
Ryephile
Hot Dog
 
Ryephile's Avatar
 
Drives: '17 1SS 1LE
Join Date: Feb 2016
Location: Metro Detroit
Posts: 1,937
I just don't see how those dimensions are going to fit. You need less offset to clear the strut, and even then, you'll also need camber plates to net appropriate camber with the wider tire.

What did Glamcem end up running when he was running 305's up front? He ran a 19x10.5 et 22 with a 5mm spacer (17mm effective), and had to grind the strut for clearance.

Your first option makes your front tire too tall. The second option improves your gear ratio, but obviously the offset is still too much. Just run known setups like seanblurr, Glamcem, or ZL1 1LE dimensions. The MRR ZL1 1LE reps in 19x10.5 et14 & 19x11 et38 is an option, those will fit 305/30-19's front and back, still assuming you're running camber plates.
__________________
2017 "M1SS1LE" in Hyper Blue w/PDR
Ryephile is offline   Reply With Quote
Old 03-22-2018, 03:50 PM   #3
RacerX78
 
Drives: 2018 Camaro SS 1LE
Join Date: Mar 2018
Location: Ohio
Posts: 51
Quote:
Originally Posted by Ryephile View Post
I just don't see how those dimensions are going to fit. You need less offset to clear the strut, and even then, you'll also need camber plates to net appropriate camber with the wider tire.

What did Glamcem end up running when he was running 305's up front? He ran a 19x10.5 et 22 with a 5mm spacer (17mm effective), and had to grind the strut for clearance.

Your first option makes your front tire too tall. The second option improves your gear ratio, but obviously the offset is still too much. Just run known setups like seanblurr, Glamcem, or ZL1 1LE dimensions. The MRR ZL1 1LE reps in 19x10.5 et14 & 19x11 et38 is an option, those will fit 305/30-19's front and back, still assuming you're running camber plates.
I don't believe seanblurr had to use camber plates with his setup. I'm leaning more towards running the 19" setup, since it is shorter and leaves more head room in the wheelwell. I'd just be concerned with going to +14 on the offset. I'd want to know how the fender clearance is under full compression with that offset.

As far as gearing i'm not exactly looking for shorter gearing, but i'm ok loosing some mph if i can get the fitment i want.
RacerX78 is offline   Reply With Quote
Old 03-22-2018, 05:25 PM   #4
seanblurr

 
seanblurr's Avatar
 
Drives: ZL1 1LE
Join Date: Oct 2016
Location: California
Posts: 1,297
I can reply more in detail later today, but the simple answer that you may not like is to just leave the car stock (wheels/tires). That was my most favorite setup on the SS 1LE.
__________________
seanblurr is offline   Reply With Quote
Old 03-22-2018, 06:15 PM   #5
RacerX78
 
Drives: 2018 Camaro SS 1LE
Join Date: Mar 2018
Location: Ohio
Posts: 51
Quote:
Originally Posted by seanblurr View Post
I can reply more in detail later today, but the simple answer that you may not like is to just leave the car stock (wheels/tires). That was my most favorite setup on the SS 1LE.
Np, let me know the problems you had with it when you get a chance.
RacerX78 is offline   Reply With Quote
Old 03-23-2018, 08:28 PM   #6
HyperspaceTurd
 
HyperspaceTurd's Avatar
 
Drives: 17 1SS 6MT, 09 Tacoma TRD Sport
Join Date: Nov 2017
Location: Colorado
Posts: 149
I don't know about all that but I'm gonna see how these 19x11s shod with 305/30 RE71s (had the wheels for weeks, just got the tires yesterday) are gonna fit tomorrow when I get off my ass and put em on.

I anticipate rolling the fenders a wee bit, otherwise I'm stoked. They's going on a 1SS non MRC.

Front ET should be +6, rear should be +35. I'm gambling a little bit, being a bit overextended and just now replacing my worn-out floor jack. Never got the chance to dry fit the wheels, oh well. **** it. I trust ya Paul and forgestar!
HyperspaceTurd is offline   Reply With Quote
Old 03-24-2018, 09:42 AM   #7
BradfordCamaro
SABIO
 
BradfordCamaro's Avatar
 
Drives: 2016 CAMARO 1SS
Join Date: Jul 2015
Location: Bradford, ON
Posts: 5,012
Waiting for pics. Curious to see how it turns out.
__________________



BradfordCamaro is offline   Reply With Quote
Old 03-24-2018, 02:27 PM   #8
RacerX78
 
Drives: 2018 Camaro SS 1LE
Join Date: Mar 2018
Location: Ohio
Posts: 51
So took the car in to get its first alignment, and while it was up on the lift i got some pictures of the front wheels mounted. I can now see where fitment is close. The strut mount support only has about .25" of space between it and the rim. Making it difficult to go shorter and wider with the rim. The tire also already sticks out of the wheel well not leaving much room to go wider or have a lower offset, without contacting the fender. That said there is atleast about 1" of space between the spring seat and the top of the tire. I can easily see running 295/30 on a stock tire and even a +23 offset tire and not having any issues. I'm just trying to figure the math on custom offsets and widths that could work now.

(FYI: i did notice the spring spacer in it. The dealer decided to leave me a present)



















RacerX78 is offline   Reply With Quote
 
Post Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 04:56 AM.


Powered by vBulletin® Version 3.8.9 Beta 4
Copyright ©2000 - 2024, vBulletin Solutions, Inc.