winstonusmc Posted August 6, 2013 Share Posted August 6, 2013 (edited) I have searched a bit trying to find the reason my tires are hitting the front lip when I turn. I have RBR 16x8 +4 with 225/50 tires running a +25mm spacer. I figure its similar to running the RBR 17x9 wheels. So it obvious why it hits, but what is the solution? I have the ZG flares so I want to keep the spacers. The tension rod bushings have seen better days as well. I noticed the the rear of the tires do not get as close, leaving about an inch when turned. Could the bushings be that bad? If not would pulling the wheels back 3/4" reduce caster too much? I have also thought about increasing track with an S13 cross member and removing the spacer to try to combat this problem. Edited August 6, 2013 by winstonusmc Quote Link to comment Share on other sites More sharing options...
cockerstar Posted August 6, 2013 Share Posted August 6, 2013 What's your overall tire diameter? Quote Link to comment Share on other sites More sharing options...
winstonusmc Posted August 6, 2013 Author Share Posted August 6, 2013 Quick math gives me 24.8 which makes me think its too big. What would be a common size 16 tire that would give me more the diameter I would need? But I really don't want to buy new tires just yet. Quote Link to comment Share on other sites More sharing options...
winstonusmc Posted August 6, 2013 Author Share Posted August 6, 2013 I have heard of some having to cut the dam and moving it. This wouldn't be a problem, but its urethane. And after crunching the numbers on some of the 17" setups, my tires are smaller by about an inch of those setups. Quote Link to comment Share on other sites More sharing options...
BluDestiny Posted August 6, 2013 Share Posted August 6, 2013 Its the offset. It is messing with the normal scrub. Take the 25mm spacers off and try a 10mm. Quote Link to comment Share on other sites More sharing options...
winstonusmc Posted August 6, 2013 Author Share Posted August 6, 2013 A realize the spacers do it, but its the same as a 17x9.5 with a +12 offset. Actually a little less. So if those guys that run the 17x9.5 on the front, my 16x8 -21 offset shouldn't be a problem. Quote Link to comment Share on other sites More sharing options...
Sideways Posted August 6, 2013 Share Posted August 6, 2013 May I ask why you want to keep the spacers? Quote Link to comment Share on other sites More sharing options...
SUNNY Z Posted August 6, 2013 Share Posted August 6, 2013 The 9.5" wheels are a -19 offset. This might help? https://www.google.com/search?q=backspacing+chart&safe=off&rlz=1C1ASUT_enUS459US459&tbm=isch&tbo=u&source=univ&sa=X&ei=h9cAUu7qIaqgyAHS84HAAw&ved=0CC8QsAQ&biw=1366&bih=600#facrc=_&imgdii=_&imgrc=HtmflMPJ1-6UaM%3A%3BMit0ZNpY4B59CM%3Bhttp%253A%252F%252Fi72.photobucket.com%252Falbums%252Fi172%252Fblaine517%252Ftruck%252FWheelOffsetChart.jpg%3Bhttp%253A%252F%252Fwww.355nation.net%252Fforum%252Fwheels-tires%252F4659-wheel-offset-backspacing-chart.html%3B432%3B252 Quote Link to comment Share on other sites More sharing options...
winstonusmc Posted August 7, 2013 Author Share Posted August 7, 2013 I want to keep the spacers to fill up the fenders. And for that link let me explane. 8 inch wheels are 203mm wide. With +4 offset that is 98mm from hub to edge. Add my 25mm spacer, thats 123mm from hub to edge. Take the 9.5 wheel, which is 241mm wide. With the -19 offset it is 140mm to edge. So the 9.5 would stick out 17mm more than mine. Quote Link to comment Share on other sites More sharing options...
BluDestiny Posted August 7, 2013 Share Posted August 7, 2013 8" wheels are actually not 203mm. That measure is bead to bead, they are really 9" wide (or close to that) lip to lip. Anyway I saw that you know your tc rods are pretty much toast. Is it only rubbing right at the front of your airdamn? and does it happen when you are going in reverse or forward or only when you brake? Your TC rods could just have too much play in them causing your caster to go whacky under certain conditions (turning hard and braking etc..) Are you running any camber? what kind of suspension are you running? Quote Link to comment Share on other sites More sharing options...
johnc Posted August 7, 2013 Share Posted August 7, 2013 It's very common to have rubbing on the front valance/spoiler with wide wheels and tires. 8" wide wheels or wider will have some rubbing at performance oriented camber setting and a lowered car. Trim the valance and the spoiler. Quote Link to comment Share on other sites More sharing options...
winstonusmc Posted August 7, 2013 Author Share Posted August 7, 2013 I am running stock suspension. Its not lowered at all. Quote Link to comment Share on other sites More sharing options...
Sideways Posted August 9, 2013 Share Posted August 9, 2013 (edited) Please delete this post, apologies Edited August 10, 2013 by Sideways Quote Link to comment Share on other sites More sharing options...
winstonusmc Posted August 9, 2013 Author Share Posted August 9, 2013 I think I am going to trim the valance. I just have to figure out how I am going to trim the plastic without it looking like ass. Quote Link to comment Share on other sites More sharing options...
RebekahsZ Posted August 10, 2013 Share Posted August 10, 2013 I trimmed my urethane airdam with a sandpaper roll on a dremel tool. It didn't take much. Quote Link to comment Share on other sites More sharing options...
winstonusmc Posted August 10, 2013 Author Share Posted August 10, 2013 Just trimmed it, seemed to take care of most of it. Now need to install the Moog tension rod bushings. Quote Link to comment Share on other sites More sharing options...
Sideways Posted August 10, 2013 Share Posted August 10, 2013 It's very common to have rubbing on the front valance/spoiler with wide wheels and tires. 8" wide wheels or wider will have some rubbing at performance oriented camber setting and a lowered car. Trim the valance and the spoiler. Wouldnt happen to have any pictures/examples of people who have done this by any chance would you? Quote Link to comment Share on other sites More sharing options...
johnc Posted August 10, 2013 Share Posted August 10, 2013 Not any kind if close up pic. I just draw a nice curved line that follows the stock wheel well arch and then cut on that line. Do a few small cuts until you have enough room. Quote Link to comment Share on other sites More sharing options...
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