C7 Tech/Performance Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

Anyone using 345/25r20

Thread Tools
 
Search this Thread
 
Old Nov 24, 2015 | 12:27 PM
  #21  
Motohead279's Avatar
Motohead279
Drifting
 
Joined: Sep 2013
Posts: 1,906
Likes: 51
From: Tampa Florida
Default

Originally Posted by savage
How wide are your forgelines? 10-10.5-11-11.5, and very important what is offset of wheels? I'm guessing +80.
They are 20x11

If I decide to go to a 335 I will need a 20x11.5 -12.5.

Off the top of my head I don't recall the offset.

Im facing a serious traction dilemma. For the track Im going to put on a set of 18" rears with DRs. But for the street I want to keep my 20" wheels because I like the looks. But at 1150rwhpn to be more) there are little to no options on tires. Im running Toyo 888s right now and I can spin them in 3rd. Just debating on ordering a wider rear rim and trying a 335 or going down to a 19" wheel where there are more tire choices.
Reply
Old Nov 24, 2015 | 12:55 PM
  #22  
savage's Avatar
savage
Burning Brakes
 
Joined: Jan 2014
Posts: 1,078
Likes: 262
From: swoyersville pa
Default

Originally Posted by Motohead279
They are 20x11

If I decide to go to a 335 I will need a 20x11.5 -12.5.

Off the top of my head I don't recall the offset.

Im facing a serious traction dilemma. For the track Im going to put on a set of 18" rears with DRs. But for the street I want to keep my 20" wheels because I like the looks. But at 1150rwhpn to be more) there are little to no options on tires. Im running Toyo 888s right now and I can spin them in 3rd. Just debating on ordering a wider rear rim and trying a 335 or going down to a 19" wheel where there are more tire choices.
I'm just trying to help and learn, this is coming from a guy who busted his rear inner fender lips off and crack the rear quarters ( a nightmare)with 315/30/18 on the wrong offset wheels( +58) offset is everything on base/z51 cars( my c5 could run anything from a 315/35/18 up front to a 335 anything in back)not these c7's , I wish I knew if there is a offset that will work in the rear to run a 325/30/19 hoosier( yes I can do the math a say +85 and the rear inner fender lip is safe but I don't know if a +85 offset will clear the inner wheel well?? Like yourself I'm not talking show wheels/tires , I'm talking drag/track setups. There is so much more I can say that I learned- the widest a wheel can be on a 18 inch wheel is 11, I could go on and on , with this being said can you try to find the offset of the 20x11 wheels you have and post or inbox me everything you learn on max tire/ wheel size, I have 335/30/18 a7 Hoosiers that I don't have the b*lls to try until it works for someone I trust! Thanks
Reply
Old Nov 25, 2015 | 11:46 AM
  #23  
NTMD8R's Avatar
NTMD8R
Melting Slicks
20 Year Member
 
Joined: Sep 1999
Posts: 2,305
Likes: 86
From: Richmond, BC, Canada
Default

David,
you know I am running 315x30x20 Toyo R888 rears on 20x11 wheels with orig offset (79mm),
and at stock height and -2.0 camber, there is no rubbing.
This is with Highway driving and pretty severe autocross.
Reply
Old Nov 25, 2015 | 12:09 PM
  #24  
blown81bu's Avatar
blown81bu
Safety Car
10 Year Member
 
Joined: Aug 2007
Posts: 3,562
Likes: 233
Default

how about a 19x11 for a c5...c6z replica with nt05rs 305-35-19

Last edited by blown81bu; Nov 25, 2015 at 12:10 PM.
Reply
Old Nov 25, 2015 | 12:10 PM
  #25  
savage's Avatar
savage
Burning Brakes
 
Joined: Jan 2014
Posts: 1,078
Likes: 262
From: swoyersville pa
Default

Originally Posted by NTMD8R
David,
you know I am running 315x30x20 Toyo R888 rears on 20x11 wheels with orig offset (79mm),
and at stock height and -2.0 camber, there is no rubbing.
This is with Highway driving and pretty severe autocross.
Thanks , the -2.0 neg camber might be the magic there , but it works so it goes in the books!! Lol, there are two more things I'm trying to know, can we put a +85 offset wheel back there ? If we could that would open the door for 325/30/19 a7 Hoosiers. also let's not forget a 11.5 wheel is 1/4 inch deeper in wheel well than say a 11 inch with same offset, so that +85 offset I'm talking about on a 19x11 is less deep in wheel well than 19x11.5 with same +85 offset, ( how deep can we go?)I don't want to be the guy to spend thousands on wheels that don't clear/work,
Reply
Old Nov 25, 2015 | 12:16 PM
  #26  
savage's Avatar
savage
Burning Brakes
 
Joined: Jan 2014
Posts: 1,078
Likes: 262
From: swoyersville pa
Default

Originally Posted by blown81bu
how about a 19x11 for a c5...c6z replica with nt05rs 305-35-19
I'm sure that's posted on C 5 forum , my c5 worked with anything/ everything I tried , also it's hard to help unless you post offsets, offsets are everything !!!
Reply




All times are GMT -4. The time now is 12:36 PM.

story-0
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-1
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-2
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-3
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-4
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-5
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-6
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-7
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-8
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-9
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE