Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum - Reply to Topic
Ford Focus Forum
HomeContact UsAbout UsGalleryDiscussion ForumsMarketplace

Go Back   Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum > Ford Focus Tech Discussions > Wheels & Tires > Cobra r's

Wheels & Tires The place to go for answers on wheel types, tire sizes, offset, wheel patterns and more.

Search This Forum | Image Search | Advanced Search    

Thread: Cobra r's Reply to Thread
Send Trackbacks to (Separate multiple URLs with spaces) :
Post Icons
You may choose an icon for your message from the following list:

Register Now

In order to be able to post messages on the Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
What I Drive
Year, color, and model of your car. Example: 2003 Focus Centennial Edition Sedan
Your real name.
Please select your insurance company (Optional)


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Additional Options
Miscellaneous Options

Topic Review (Newest First)
05-07-2013 05:05 PM
focusmaniaczx3 im on pins and needles waiting on that write up! would really like to see whats all involved in it!
05-05-2013 06:35 AM
focusmaniaczx3 Please! A build thread would be fantastic!
05-02-2013 09:26 PM
thenorm I had previously cut away lots (like 2" vertically of metal) of the fender to provide clearance for my 15x10 racewheels with the 275/35R15 hoosiers.

So to get the look that is pictures, I added F2 fender flares. I cut away the inner lip of the flares to make them fully functional. I had to pull the ends of the bumper out to meet the flares and to clear the tires by notching the backside and put an extended tab.

The wheels I got from they originally were 18mm offset but I machined 5mm off to increase offset to 23mm. they're 17x9 and probably 24lbs, so they are heavy.
They have a 255/40R17 tire. this is a lot of tire, too tall in my opinion, it rubs the wheel well liner, and did rub where the bumper meets the fender, so I clearanced a fair bit. the tires are Sumitomo HTR2, so the grip sucks, but they were cheap. I bought this setup just for looks, so I didn't care much about performance. I would consider a 245/40R17 tire next time.

so after all that work, it doesn't rub any more except on the wheel well liner in parking lots, but that doesn't matter.

if you have more questions, maybe we should go to PM or I'll start a build thread where its easier for others to find. I don't want to dilute this thread too much as it was for a mk3
05-02-2013 09:37 AM
focusmaniaczx3 i would really REALLY like to get more info from you on how you got those 17x9s to fit in there. because thats what i would like to go with. they look badass on the car and i bet they stick like crazy too. if i have to do some flaring on my fenders, at this point i wont mind. ill fab up some custom if i need to. did you flare yours out with a roller or did you have to cut and weld flares in? after flaring your fenders do you get any rub at all? its also kinda hard to tell in the pic but did you have to stretch the tires or could you run a full size tire if need be? im pretty well set on the cobra wheels one way or another at this point. its pretty much just down to whether they are 8 or 9 inches wide. it beats the hell out of paying over a grand for something else with a more "correct" offset that i dont like the looks of nearly as much.
05-01-2013 02:49 PM
thenorm i dont think we crossed wires. We're talking about maching the backside of the wheel. if i removed any more material, i would start taking away the seat of hte lugnuts. if I removed 10mm, the lugnuts would pass right through the wheel. of course every wheel is a little different.

and 8" wheel would need about 40mm offset to be close to the strut.
for every half inch width, offset needs to change about 6mm.
6" - 52mm (OEM fitment)
7" - 45-49mm (accepted and OEM fitment)
7.5 - 45mm
8" - 40mm
8.5" - 35mm
9" - 30mm would be ideal, but i made do with about 23mm
10" -my race wheels have 10mm

edit: i just realized i have a lot of sets of wheels in just about every fitment(16x6 x2, 15x7, 15x10, 17x7 x2, 17x9)
05-01-2013 08:58 AM
focusmaniaczx3 okay then what about the 17x8 cobra wheels?

also i think we got a wire crossed somewhere. im not talking about milling down the hub of the car. i was talking about milling down the actual wheel. surely there is enough material on the wheel to take off a pretty good bit. and even if not im just rolling ideas around. the svt 5 spokes are my favorite wheels for the focus and i think it would be kickass to be able to run 17x8 or 9 on my car. if it wont work then it wont work, its just an idea.

im gonna see if i can work this idea out. stock 15's are 6 inches wide with a 56mm offset. i ran 7.25 inch wide tires on them (radials) with no spacers and the tires just BARELY touched the shocks. 1in = about 25mm. running 30mm spacers on the stock 15s puts the offset at about 25mm and they will still tuck in the fenders with some mild fender rolling. so if i run wheels that are 25mm offset and are 8.5 inches wide i could theoretically tuck them in the fenders without rubbing the shocks and have minimal fender rub. which, if my thinking is right, means the 17x8 cobra wheels would fit and i could still run a pretty meaty tire. or am i completely off base here? somehow i think im figuring up how offset works wrong because i ran some 18x7.5s with an offset of 42mm and had pretty good shock clearance and they rubbed the fenders a bit. but the fenders werent rolled tho. shit i dont know. i need to stop trying to do math right before passing out after work... feel free to put me strait... g'night
04-30-2013 10:01 PM
thenorm like Nick says,

there wasn't enough material. I did all that I could. I wish I could have done another 5mm.

more on topic. Chaos's wheels sound like they are a very good fit for the OP. It if were me, I would get the 4 mm milled off them to fit perfect, but then again I do have machinist friends so it doesn't cost me anything except beer.
04-30-2013 08:35 PM
Originally Posted by focusmaniaczx3 View Post
what stopped you from having more machined off to get the offset to around 45? i think that a 9 inch wide wheel with a 45mm offset would not rub the shock. i seem to remember figuring it out awhile back but i cant remember for sure now.
#1 You cant machine nearly an inch from the hub, there is nowhere enough material to do that.

#2 you will hit the shock/strut long before you even get close to bolting up the wheel. 17x9 et35 is just about as close as you can get on a mk1. And that's only with stretched tires.
04-30-2013 07:37 PM
Chaos09 My 17x9 cobra R's have an et of 36 and they do not rub the coils on a mk3. If I was to mill off 3-4mm it would be close.
04-30-2013 07:12 PM
focusmaniaczx3 what stopped you from having more machined off to get the offset to around 45? i think that a 9 inch wide wheel with a 45mm offset would not rub the shock. i seem to remember figuring it out awhile back but i cant remember for sure now.
This thread has more than 10 replies. Click here to review the whole thread.

Posting Rules
You may post new threads
You may 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

All times are GMT -5. The time now is 12:14 AM.

Copyright 2002-2015 All Rights Reserved : Privacy Policy : Advertise Information

Focus Fanatics Ford Focus Forum offers many fun ways for you to engage with other Ford Focus Owners from across the world. Whether it be about the aftermarket performance modifications, technical how-to's, European tuned suspension or awesome fuel economy similar to the Mazda CX-3, Audi S3, Mazda MX-5 Miata and Acura TLX. You can find all Ford Focus, Focus ST and Focus RS related information here. Join our Ford Focus discussion forums and chat with local Focus enthusiasts in your area. If you own other makes have a look at Challenger Hellcat Forum, Charger Hellcat Forum, Cadillac ATS-V Forum, Cadillac CTS-V Forum, Lexus RC-F Forum, Lexus GS-F Forum, Mercedes GLA Forum, Mercedes GLE Forum and Volvo XC90 Forum.


Search Engine Optimization by vBSEO 3.6.1