pparaska Posted August 12, 2002 Share Posted August 12, 2002 Guys, help. I don't seem to be having any sway in this conversation - people don't want to listen to physics. http://www.240z.org/forums/showthread.php?s=&postid=14862#post14862 Please weigh in! Quote Link to comment Share on other sites More sharing options...
blueovalz Posted August 12, 2002 Share Posted August 12, 2002 The precept that "a spacer is bad" is IMHO based on the idea that one is using the same offset without, and then with, the spacers, which in essence, moves the contact patch outward away from the bearings, causing the levered additional loading. If one is to replace a zero offset wheel with a substantially negative offset wheel (pushing the tire inboard), then the spacer will return this contact patch back toward it's original location, which ideally should be under the center of the bearings (or biased towards the inner bearing a bit). In severely cambered suspensions, the forces on the bearings are originating from the inner tire edges. This is one reason I had no reservation with running 1/2" positive offset with my front tires, because I moved the average contact patch back inboard with the small amount of negative camber. Quote Link to comment Share on other sites More sharing options...
pparaska Posted August 12, 2002 Author Share Posted August 12, 2002 Terry, how about weigh in over on the 240Z.org thread? Thanks for the backup. The problem over there is that a racer has weighed in and basically said I'm wrong, the wheel mounting surface, not the center of the tire patch is what matters. I of course rebutted, but the racer didn't like the way I did it. Quote Link to comment Share on other sites More sharing options...
blueovalz Posted August 12, 2002 Share Posted August 12, 2002 Well, your last post was very tactful. I'm sure you've set some wheels turning in that you may have initiated him into seeking a truthful "second opinion" in this case. I personally don't like spacers because it's just another link in a chain that could fail. Instead of one set of bolts and nuts, you have two (twice the risk?). But there are some well designed spacers out there. Ultimately, it's the contact patch that the suspension feels. Otherwise caster would mean nothing. Quote Link to comment Share on other sites More sharing options...
Guest gprix1 Posted August 12, 2002 Share Posted August 12, 2002 I posted a reply to that board. Sorry Pete, I thought one of your statements needed some clarification. Is JohnC around? I think he would have some good imput on this one. Quote Link to comment Share on other sites More sharing options...
pparaska Posted August 12, 2002 Author Share Posted August 12, 2002 Rick, not a problem on the clarification. A diagram would really help. Thanks for the assist Quote Link to comment Share on other sites More sharing options...
Nismo280zEd Posted August 14, 2002 Share Posted August 14, 2002 since you guys are so into spacers... maybe you could figure out how big a spacer i need to put on some 17x7 Konig Imagine rims.. as seen in the new MSA catalog.. like the rims.. not the price ED Quote Link to comment Share on other sites More sharing options...
SleeperZ Posted August 14, 2002 Share Posted August 14, 2002 Just post up the offset of the wheels, and whether you have coil-overs or stock suspension. The calculations are quite easy. Quote Link to comment Share on other sites More sharing options...
VRJoe Posted August 14, 2002 Share Posted August 14, 2002 Hey Pete, I dove in over there, hope my explaination helped. Levers are a great invention. -VRJoe Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted August 14, 2002 Share Posted August 14, 2002 Pete what are you doing over there anyway. Just common lever theory.. the further you get out the more pressure is applied to the bearing and axel. (None of this subject matter was covered in the fast and furious so it should not apply for any practical purpose)) Quote Link to comment Share on other sites More sharing options...
pparaska Posted August 14, 2002 Author Share Posted August 14, 2002 Thanks for the backup everybody. I read the IZCC list and 240Z-club list. I'm member number 15 of the IZCC list. Been on that for over 10 YEARS. Someone posted a message to the 240Z-club list about the post on their forums about this question. I saw some falsehoods being touted as gospel, and I felt I should jump in. Thanks a gain guys. Yeah, that thread is pretty good now - it's so technical for that place - it really belongs here. Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted August 14, 2002 Share Posted August 14, 2002 Great job guys. Now I know everything I need to know about spacers. Reminds me why I check out this place every once-in-a-while! Take care. Jon Quote Link to comment Share on other sites More sharing options...
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