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Old 09-18-2014, 06:48 PM   #1
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Drag radial modifications?

Hey everyone. Just joined. I'm sure there is already a post about this but I googled for a while and found nothing. I have a 2014 5.0 and am looking to get some drag radials on the rear of the car because it doesn't hook to save it's life. Has the stock 255/45/19 black wheels with pirelli tires now. I'm wondering if I went with a 15x8 wheel, say weld or work, do I need to do any modifications to fit the rim and tire? For tire size I'm thinking of going 295/55/15 or 275/60/15 Mickey Thompson. Or Hoosier. So my question is if I got that setup would I need to do any relocating of anything to fit it, and if so what setup would you recommend to get so I don't have to do any moving around? Click image for larger version

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Old 09-18-2014, 06:55 PM   #2
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A 295/55-15 requires a 10" wheel which requires sway bar relocation brackets. A 275/60-15 can be used on a 10" or 8" wheel but will have a better footprint on the 10" wheel.
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Old 09-18-2014, 07:00 PM   #3
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So if I went 275/60/15 on say a 15x10 rim I wouldn't have to relocate them? Or would you say to go with the 295 and just relocate the bracket? How hard/expensive is it to relocate them? Is it something I should do just to have it done to get it out of the way?


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Old 09-18-2014, 07:14 PM   #4
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It has nothing to with the tire size. A 10" wheel requires sway bar relocation brackets. An 8" wheel doesn't. Tire size has to be carefully thought out with many factors involved. Especially gearing.
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Old 09-18-2014, 07:16 PM   #5
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I don't wanna be any taller than 28'. I would like to be around 26/27 but I'm doing some passes this Saturday borrowing a set 15x8 with 28' tall I believe. Want to get a set of my own but I want to get it right, and if a 15x10 is the way to go I'll be relocating the bars. Is it a hard job to do? I like to think I'm pretty mechanically inclined lol


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Old 09-18-2014, 07:25 PM   #6
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Relocating the sway bar is really easy. All you're really doing is cutting off the bottom of the shock mounting bracket.
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Old 09-18-2014, 07:29 PM   #7
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Awesome. Thank you!! 👍👍🍻


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Old 09-19-2014, 12:59 AM   #8
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Originally Posted by Oxwhite5oh View Post
Awesome. Thank you!! 👍👍🍻


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Off topic but I was wondering how those Mac axle backs sound with the o/r/x. I have that plus long tubes and no mufflers and it's raspy and loud and I want to keep the volume up but deepen the sound. Let me know what you think.


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Old 09-19-2014, 08:25 AM   #9
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The factory Brembo Pirellis are pretty weak straight line, yes.

Are you doing this to track the car? If so, I'd recommend a bias slick i=on a manual car.

For the road, drag radials aren't too practical. They wear fast, of course and they really only hook well once you heat them up a good bit.

Traction on this car on street rubber is about delicately balancing clutch uptake with throttle and you can actually fire this car out pretty hard with some practixe and better street rubber than the P Zeros. A Michelin Pilot Sport or similar high end tire is a good choice. The Pirellis are not godawful by any stretch so, you'll have to spend to better them.
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Old 09-19-2014, 08:40 AM   #10
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@wildstang88 I love it. Loud. Some rasp but I used to have slp lm2 and off road slp x pipe on my 2002 gt I love the rasp. I usually only get it when decelerating hard though. Nice popping when I shift. Sounds mean lol.


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Old 09-19-2014, 08:42 AM   #11
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Yeah I'm gonna use the radials for the track only. I want to get something better for street use so I can hook. But the slicks would be pretty strictly track use, and when I have to throw a beating on the street as well.


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Old 09-20-2014, 10:38 AM   #12
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Said it before, say it again, don't use drag radials on a stick car. They are really hard on the driveline. For track use, a slick with a stick.
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Old 09-20-2014, 10:45 AM   #13
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Ah that's what I meant lol I always get radials and slicks mixed up haha. I'm gonna buy a set of slicks. And keep trying to sell/trade my stock ones.


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Old 09-21-2014, 09:39 AM   #14
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Quote:
Originally Posted by 5LHO View Post
Said it before, say it again, don't use drag radials on a stick car. They are really hard on the driveline. For track use, a slick with a stick.
x2

The slick's sidewall will absorb the shock to the driveline better.
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Old 09-21-2014, 11:53 PM   #15
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Bias ply on the street taking turns probably not gonna work to well.....if you do run a DR try and get the tallest side wall it will help a little with the shock but nothing like a bias ply will.....kinda a pain with street tires and a manual but they say the et street pros hook Pretty well haven't ran them yet to see for myself but my et street DR hook alright for a m6 car but I ain't doin 7k clutch dumps on them either I slip my clutch a little .......
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Old 09-22-2014, 01:55 AM   #16
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I used to get loads of wheel hop and hook problems with my pzero neros. Got Michelin as/3 pilot sports and new upper/lower control arms. Problem solved


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