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245s and 255s club!!!!! Let's see what rims your on and how they clear!!!!!

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Old 12-17-2011, 04:21 AM
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Originally Posted by -TurboSS-
I have a set of T1R's and they are awesome. One of my favorite tires.
Yes they are great, I've tried the T1R. I've noticed the R1R because by looking at the threading (hopefully I spelled it right) it looks like the tire makes a lot of contact with the street
Old 12-17-2011, 11:03 AM
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i gots condensation in my headlight

but heres my 255's. im on 8" wide rims.

Old 12-17-2011, 02:42 PM
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^^^ very very very nice, and dont worry about the condensation unless it stays, all lights condensate because of difference in temperature

Originally Posted by WannaBFast5
We had enough Balts there and didnt have a very good showing lol
Yea I know, I shouldve done much better than I did. I hate trying to chase cars down after they pull on me because Im slow spooling.

Originally Posted by 87gn06gto07irl
If you only wanted 18's i'd have you covered.
I know, but afraid I cant run wide enough tires and I really want the red ones.

l8r,
PD
Old 12-17-2011, 03:02 PM
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80Vette your car is so shiny lol
Old 12-17-2011, 04:17 PM
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Originally Posted by donkeyballs
Do you spin 2nd? Also have you marked the tire and wheel to see if the rim is spinning?
Once they are heated up i never did. Also yea we marked them the first couple times to the track and had no spinning.
Old 12-17-2011, 05:18 PM
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275/40R17 NTO5s on 9" Drag DR31s 38mm offset. For AutoX and road course I use 255/40ZR172 NTO1s on DR31 8 inch




Old 12-17-2011, 05:45 PM
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245 40 18 star specs on 9.5 inch PF01




racing I use 265 metric radials on emk3 before PF01 were released.


Time attack used A4 Hoosiers (A6 did not exist at that time) 245 40 17 on 9.5 inch wheels, and tire warmers



wheel width is critical for track performance. Here is what Hoosier say:

Front Wheel Drive
Vehicles configured with FWD are probably the most difficult application for a tire setup. The combination of steering, braking and accelerating on the front tires, combined with higher corner weights for the front positions produce a harsh environment for the tire. These vehicles will typically have a strut type of suspension which limits camber gain. All these factors result in conditions which require the tire do more work than a simple chart for pressures can accommodate.

In severe cases front tire pressures for FWD vehicles can run in the 48-52 psi (hot). In cases where the tire size is limited to a relatively small tire, the required pressure can run even higher. The front to rear pressure differential on FWD cars can have extreme ranges of inflation, depending on the driver preference, suspension tuning, and track configuration.
Old 12-17-2011, 05:56 PM
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Originally Posted by mongorat427
275/40R17 NTO5s on 9" Drag DR31s 38mm offset. For AutoX and road course I use 255/40ZR172 NTO1s on DR31 8 inch




those look like 255's do you have any pics of the 275's on the 9" wheel? and a +38 really??? how much does that stick out from the fender?
Old 12-17-2011, 05:57 PM
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Originally Posted by Maven
highly unlikely with a 275 tire crammed onto a 7" wheel. that bitch is squirming all over the place. prbably takes a day and a half to turn in :rofl:
Thats what I was wondering.... I figured the handling would probably worsen, not improve
Old 12-17-2011, 06:07 PM
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Originally Posted by 80vetteL82
Thats what I was wondering.... I figured the handling would probably worsen, not improve
considering it is a drag radial i don't think he is worried about handling
Old 12-17-2011, 09:24 PM
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Originally Posted by ATLsilverSS
those look like 255's do you have any pics of the 275's on the 9" wheel? and a +38 really??? how much does that stick out from the fender?
A half inch more. But you have to be careful with lowering .
Old 12-18-2011, 04:00 AM
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So bottom line is, if I understood, I can put a set of 255/35 on Forgestar 18x9 without rubbing?
Old 12-18-2011, 04:44 AM
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Originally Posted by Powell Race Parts
245 40 18 star specs on 9.5 inch PF01




racing I use 265 metric radials on emk3 before PF01 were released.




wheel width is critical for track performance. Here is what Hoosier say:

Front Wheel Drive
Vehicles configured with FWD are probably the most difficult application for a tire setup.
Your lowered on Pedders? are you using a spacer and what offset? and are you 5x110 or 5x114.3? I ask because I can see the Brembos in your wheel but they look smaller than the SS/TC ones, but I may be wrong.

Originally Posted by mongorat427
275/40R17 NTO5s on 9" Drag DR31s 38mm offset. For AutoX and road course I use 255/40ZR172 NTO1s on DR31 8 inch




what are you lowered on? how much rub do you get?

l8r,
PD
Old 12-18-2011, 05:23 AM
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Right now I'm on stockers with 15mm spacers in front and 5mm in the rear. With the Forgestar CF5 18x9 and tires 255/35, what kind of offset I need to get rid of the spacers but still have the wheels flush with the fenders?
Old 12-18-2011, 10:37 AM
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on emk3 5 x 110 x 8 inch the wheels were too narrow. That picture is from 2008. I run 5 x 114.3 @ 9.5now and its much better. The picture on slicks was stock LNF Brembo rotors and calipers. I run floating rotors now same diameter, but 2 mm thicker and a better material, more expensive thick cheek racing rotor.

If you want to run wheels without spacers you need to have about 38mm offset but it is also dependent on the design of the wheel spokes, you can have the correct offset but not enough clearance for calipers due to spoke design.

Most if the newer Enkei wheels will work fine. Older wheels like the RF series Emkei maybe a struggle to clear Brembos. New Buick Regal GS calipers are bigger still and will be a challenge to fit in most wheels. Enkei PF01 are good for practically any Caliper set up, but you need 5 x 114.3 to get the range of offsets and widths you need, 5 x 114.3 is a more popular pcd/more cars/more potential sales. Mustang is 5 x 114.3 for example

Last edited by Powell Race Parts; 12-18-2011 at 10:43 AM.
Old 12-18-2011, 10:40 AM
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Originally Posted by Powell Race Parts
on emk3 5 x 110 x 8 inch the wheels were too narrow. That picture is from 2008. I run 5 x 114.3 @ 9.5now and its much better. The picture on slicks was stock LNF Brembo rotors and calipers. I run floating rotors now same diameter, but 2 mm thicker and a better material, more expensive thick cheek racing rotor.
John, I've heard you're running 255/35 on your car, is that right?
Old 12-18-2011, 10:44 AM
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Originally Posted by AyrtonSenna
John, I've heard you're running 255/35 on your car, is that right?
no not at all. 245 40 18.
Old 12-18-2011, 10:54 AM
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Originally Posted by Powell Race Parts
no not at all. 245 40 18.
Sorry, I guess I misunderstood. On 255/35 with 18x9, what offset should I get to have the wheels flush with the fenders?
Old 12-18-2011, 11:05 AM
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Originally Posted by AyrtonSenna
Sorry, I guess I misunderstood. On 255/35 with 18x9, what offset should I get to have the wheels flush with the fenders?
That depends do you want flush out the tire or rim. a 255/35 on a 9' with a 35 offset will poke the rim and tire. a 40 offset on a 9 inch will have the tire sit flush with the fender.
Old 12-18-2011, 11:07 AM
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Originally Posted by SSmokedd
That depends do you want flush out the tire or rim. a 255/35 on a 9' with a 35 offset will poke the rim and tire. a 40 offset on a 9 inch will have the tire sit flush with the fender.
Yes I'm looking for the tire to be flush. Then I guess I need +40
Old 12-18-2011, 11:09 AM
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^^^ right. And the extra .5 inch when you go to 9.5 st 40 mm will (iirc) crash into the strut. 9.0 is a good compromise width if you want to run decent tires. On a Cobalt you will 100% have to roll the fenders, and you will wear the plastic inner liner; and if you have an SC and run a silly aftermarket 3 inch inlet tube you will probably rub that unless you do some decent install mods, and relocate the maf /filter tube higher up in the fender well.
Old 12-18-2011, 11:14 AM
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Originally Posted by Powell Race Parts
^^^ right. And the extra .5 inch when you go to 9.5 st 40 mm will (iirc) crash into the strut. 9.0 is a good compromise width if you want to run decent tires. On a Cobalt you will 100% have to roll the fenders, and you will wear the plastic inner liner; and if you have an SC and run a silly aftermarket 3 inch inlet tube you will probably rub that unless you do some decent install mods, and relocate the maf /filter tube higher up in the fender well.
What do you mean that I have to roll the fenders? (sorry, english is not my main language)
Old 12-18-2011, 11:47 AM
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How wide are the stock ss/tc wheels?
Old 12-18-2011, 12:02 PM
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wow i didnt think this size tires would fit undr these cars.
i rocked 18x8.5 +42 offset with 225/40/18 and they rubbed like a son of a ***** in the front on the strut towers and fender.


now im running 17x7 +38 offset with 215/45/17
Old 12-18-2011, 12:25 PM
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Originally Posted by pykie
wow i didnt think this size tires would fit undr these cars.
i rocked 18x8.5 +42 offset with 225/40/18 and they rubbed like a son of a ***** in the front on the strut towers and fender.
Really? But how low is your car?


Quick Reply: 245s and 255s club!!!!! Let's see what rims your on and how they clear!!!!!



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