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Old 11-25-2008, 11:41 PM   #1
dilzy82
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Thumbs up +35 offset what do i need ?

Ok I have a JDM WRX V-Limited with STI suspension. What do I have to do to make +35 18x9 Rota G Force fit ? No one is doing this here in Ireland. Heres pics that might help. Thanks in advance


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Old 11-25-2008, 11:45 PM   #2
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a fender stretcher

a BIG fender stretcher

your car is nice....dont screw it up trying to fit the wrong wheels
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Old 11-26-2008, 12:37 AM   #3
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+35 offset is fail.
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Old 11-26-2008, 12:59 AM   #4
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+30 Ftw.
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Old 11-26-2008, 01:03 AM   #5
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Quote:
Originally Posted by Øbey View Post
+30 Ftw.


+30 is even worse. To make a 9" wheel fit while doing the least damage to your suspension geometry, the math says you need to be pretty much at +40.
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Old 11-26-2008, 01:28 AM   #6
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Quote:
Originally Posted by williaty View Post
+35 offset is fail.

finally someone on here who absolutley knows what they are talking about
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Old 11-26-2008, 01:33 AM   #7
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roll your fenders and your done.... enough said.
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Old 11-26-2008, 02:14 AM   #8
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geezus that is a nice ride
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Old 11-26-2008, 10:14 AM   #9
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you will had to get coilovers, camber plates, roll the front fender, roll the rear fender and pull them as well. you will have to run -2.3-.5 camber so you don't rub at all.

And you will kill your wheel bearings

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Old 11-26-2008, 12:11 PM   #10
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Remember that Subaru set our stock offset at +53. Slight variations are acceptable, but going with extreme offsets will require extreme suspension and fender modifications.

p.s. Tire size and tire life will be DRAMATICALLY decreased.
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Old 11-26-2008, 12:58 PM   #11
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Quote:
Originally Posted by williaty View Post
, the math says you need to be pretty much at +40.
While I agree with your math, it's nothing more than a slight sacrifice for the sake of the look. I run my +30 for 3/4 of the year and while I love the crisp turn-in of a 50 offset wheel, the look of a wide ass +30 (or +35 in this case) is well worth it to me. Street racing is a federal offense, so I really don't miss the one percent of performance that I lose.



Quote:
Originally Posted by juanmedina View Post
you will had to get coilovers, camber plates, roll the front fender, roll the rear fender and pull them as well. you will have to run -2.3-.5 camber so you don't rub at all.

And you will kill your wheel bearings
Please Juan, don't spread misinformation.
First off, his STi doesn't have a rear fender lip like a WRX. Second, there are many cases of aggressive offset cars without wheel bearing issues. Hell, I've taken my own car to the track while running a low 42 offset, and put thousands of miles on my current +30 wheels.

Quote:
Originally Posted by cpunlamd View Post
going with extreme offsets will require extreme suspension and fender modifications.

p.s. Tire size and tire life will be DRAMATICALLY decreased.
Tire life is going to be determined by what alignment specs you run. If one does the right modifications, one CAN run a good alignment for the street.
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Old 11-26-2008, 01:06 PM   #12
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Quote:
Originally Posted by dilzy82 View Post
What do I have to do to make +35 18x9 Rota G Force fit ?
The key to running the wide wheels with low offset, is to either limit the amount of suspension travel you have, or make room in the fenderwell. Your best bet is a little of both.

I ran some Ohlins with RCE springs, and found that there was too much movement. Off came the Ohlins, and on went the RCE Tarmac II's and voila, I was able to stiffen the suspension.

That' step one.
Step two is to decide if you want to run aggressive alignment settings, like 3 degrees of rear camber, or if you prefer to cut the rear fender lip.


For reference, you can see that the 911 is already factory rolled for aggressive fitment.



If Porsche is doing it, and has been for years, why are we so scared as Subie enthusiasts?




Back to it, you get a good idea of how a +30 will stick out, and the amount of trimming I had to do to make it all fit.



It's not really a lot of work, but you do have to take the time to cut, and then seal everything up back there.
When I did it, there were few references, and I spent a lot of time perfecting the cuts, welding things back up, etc. Now, a simple search will yield a recipe to fit anything. That's how I realized I worked harder than I needed to.

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Old 11-26-2008, 03:55 PM   #13
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Thanks for the comments lads. Keep them coming
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Old 11-26-2008, 05:45 PM   #14
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Quote:
Originally Posted by hypa View Post
Tire life is going to be determined by what alignment specs you run. If one does the right modifications, one CAN run a good alignment for the street.
True to a certain extent. The wheel in question is 18x9 +35 being installed on a GD Impreza. If you use the "correct" camber for the street, you will require a thin tire and will be running the stretch tire mod (ghetto mod in my professional opinion). With a good sized tire + the wheel in question, it will require ALOT to make it fit (which includes retarded negative camber).
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Old 11-26-2008, 05:57 PM   #15
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Quote:
Originally Posted by cpunlamd View Post
True to a certain extent. The wheel in question is 18x9 +35 being installed on a GD Impreza. If you use the "correct" camber for the street, you will require a thin tire and will be running the stretch tire mod (ghetto mod in my professional opinion). With a good sized tire + the wheel in question, it will require ALOT to make it fit (which includes retarded negative camber).
clarity of thought, here

quite refreshing
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Old 11-26-2008, 08:04 PM   #16
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Quote:
Please Juan, don't spread misinformation.
First off, his STi doesn't have a rear fender lip like a WRX. Second, there are many cases of aggressive offset cars without wheel bearing issues. Hell, I've taken my own car to the track while running a low 42 offset, and put thousands of miles on my current +30 wheels.
I didn't notice he didn't had a WRX but for WRXs I am correct on the setting need it to fit those kind of wheels, and you did see the sarcastic smily beside the wheel bearing issues

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Old 11-26-2008, 09:27 PM   #17
cpunlamd
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Quote:
Originally Posted by Uncle Scotty View Post
clarity of thought, here

quite refreshing
Always here to help the challenged.
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Old 11-27-2008, 11:08 AM   #18
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Quote:
Originally Posted by cpunlamd View Post
True to a certain extent. The wheel in question is 18x9 +35 being installed on a GD Impreza. If you use the "correct" camber for the street, you will require a thin tire and will be running the stretch tire mod (ghetto mod in my professional opinion). With a good sized tire + the wheel in question, it will require ALOT to make it fit (which includes retarded negative camber).
Are you kidding me?
I run a 245 on my setup. My buddy runs a 255.
I've done both rear fender modifications to make them fit, AND we're both running realistic camber settings. In fact, I run +30 offset, 245 series RT615 tires, and less than 2 degrees of rear camber, while he's running even more aggressive +29.

For those who question my knowledge, and therefore my advice, here are some of my past projects. I've done over 30 rolls in the last year, and numerous "trims" to help people fit these wheels.









Notice the cars are sitting on an alignment rack?


Now, I'm not saying the offset isn't without it's sacrifices. Some of these guys are running 225's on a 9.5" wheel, and even I don't like that.
But at +35, there isn't much to worry about other than doing some minor modifications.

Last edited by steve; 11-27-2008 at 11:17 AM. Reason: added pics
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Old 11-27-2008, 11:33 AM   #19
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Quote:
Originally Posted by hypa View Post
Are you kidding me?
Im not kidding. Its not impossible to "MAKE" those wheels fit. Key word "make". They are not going on with out a list of mods. And you will most likely have to sacrifice a good sized tire to get the "RIGHT" camber.
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Old 11-27-2008, 11:54 AM   #20
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Yeah, somehow I don't consider "simple modification" that includes the word "weld" in it's description. I had to roll my rears to keep my 235 on a +42 from rubbing. Granted, it's a wide running 235 but still.
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Old 11-27-2008, 12:31 PM   #21
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http://www.youtube.com/watch?v=DDTK9IjKIYU

i hope none of the flush ppl think about fender modding like this lol
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Old 11-27-2008, 01:19 PM   #22
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and the heart of all 'rice' is fitting parts that DONT, regardless of the issues that they may cause.....just to be koo and be part if the 'IN' crowd(of like minded idiots).

glad I grew out of it...sometime right around highschool graduation
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Old 11-27-2008, 01:21 PM   #23
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If it's for a motorsport application it's a bit different, but just for looks I agree with you there.
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Old 11-27-2008, 01:30 PM   #24
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Quote:
Originally Posted by Daishi00 View Post
If it's for a motorsport application it's a bit different, but just for looks I agree with you there.


motorsports application???

these wankers wouldnt know a motorsport if it bit them in the ass
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Old 11-27-2008, 01:34 PM   #25
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Oh, I completely agree, but I was just doing some clarification
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