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The Terminator
Suspension Modifications
315/30/18 OR 315/35/18 - Advice Needed
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<blockquote data-quote="MaxxdOut" data-source="post: 16810962" data-attributes="member: 189635"><p>Setting a new wheel tire package for my O4 vert and I could use some assistance.</p><p></p><p><strong><span style="font-size: 18px">Problem Statement:</span></strong></p><p>- I'm having a difficult time deciding on sidewall height.</p><p></p><p><strong>Option 1: 315/30/18</strong></p><p>- this option will bring me slightly shorter in total tire height than stock. Stock = 25.7 in (total tire height) VS ~25.4</p><p></p><p><strong>Option 2: 315/35/18</strong></p><p>- this option will bring me ~1 in taller than stock. Stock = 25.7 VS 26.7</p><p></p><p><strong><span style="font-size: 18px">Background Details and Assumptions:</span></strong></p><p><strong><span style="font-size: 15px">- </span></strong><span style="font-size: 15px">Convertible</span></p><p><span style="font-size: 15px">- Currently on factory wheels and tires</span></p><p><span style="font-size: 15px">- New rear wheels will be 18x10.5. Offset = 22</span></p><p><span style="font-size: 15px">- Rear tires will be R888R's</span></p><p><span style="font-size: 15px">- The car will be lowered. However, I have not determined what springs I will put on it. I plan to retain my factory struts/shocks. Perhaps down the road I may go coilovers, but I'll cross that bridge later.</span></p><p><span style="font-size: 15px">- Expect I will need to shave or replace my IRS bolts</span></p><p><span style="font-size: 15px">- Car use - Street car, weekend cruiser. I do drive it hard very hard and like a stiff and compliant drive.</span></p><p><span style="font-size: 15px"><span style="font-size: 15px">- Fenders are factory un-rolled.</span></span></p><p></p><p><span style="font-size: 18px"><strong>Open Questions:</strong></span></p><p><span style="font-size: 15px">1) with the 315's, I presume I will need to roll the fender. I was considering using the <a href="https://www.google.com/search?q=Eastwood+Fender+Roller&rlz=1C1GCEB_enUS963US963&oq=Eastwood+Fender+Roller&aqs=chrome..69i57.3715j0j7&sourceid=chrome&ie=UTF-8" target="_blank">Eastwood Fender Roller</a>. Any recommendations pro or against this approach?</span></p><p><span style="font-size: 15px"></span></p><p><span style="font-size: 15px">2) I am torn between the 30 and 35 sidewall tires. Any recommendations on commonly used tires? I am seeing both from the posts that I read.</span></p><p><span style="font-size: 15px"></span></p><p><span style="font-size: 15px">3) I haven't determined my lowering approach as of yet. Any recommendations in this area are greatly appreciated. I realize this has a contributing factor towards tire selection and avoiding rubbing. I like a low, stiff, yet streetable car.</span></p><p><span style="font-size: 15px"></span></p><p><span style="font-size: 15px">4) With lowering considerations in mind, should I plan to purchase anything else to correct my geometry? E.g., Camber/Caster plates, etc.</span></p><p><span style="font-size: 15px"></span></p><p><span style="font-size: 15px">5) with my offset of 22. Will I need spacers for clearance? If so suggestions on size to avoid rubbing with 315's?</span></p><p><span style="font-size: 15px"></span></p><p><span style="font-size: 15px">Guidance, and pictures of your setup are greatly appreciated!</span></p><p><span style="font-size: 15px"></span></p><p><span style="font-size: 15px">Thanks in advance!</span></p></blockquote><p></p>
[QUOTE="MaxxdOut, post: 16810962, member: 189635"] Setting a new wheel tire package for my O4 vert and I could use some assistance. [B][SIZE=5]Problem Statement:[/SIZE][/B] - I'm having a difficult time deciding on sidewall height. [B]Option 1: 315/30/18[/B] - this option will bring me slightly shorter in total tire height than stock. Stock = 25.7 in (total tire height) VS ~25.4 [B]Option 2: 315/35/18[/B] - this option will bring me ~1 in taller than stock. Stock = 25.7 VS 26.7 [B][SIZE=5]Background Details and Assumptions:[/SIZE] [SIZE=4]- [/SIZE][/B][SIZE=4]Convertible - Currently on factory wheels and tires - New rear wheels will be 18x10.5. Offset = 22 - Rear tires will be R888R's - The car will be lowered. However, I have not determined what springs I will put on it. I plan to retain my factory struts/shocks. Perhaps down the road I may go coilovers, but I'll cross that bridge later. - Expect I will need to shave or replace my IRS bolts - Car use - Street car, weekend cruiser. I do drive it hard very hard and like a stiff and compliant drive. [SIZE=4]- Fenders are factory un-rolled.[/SIZE][/SIZE] [SIZE=5][B]Open Questions:[/B][/SIZE] [SIZE=4]1) with the 315's, I presume I will need to roll the fender. I was considering using the [URL='https://www.google.com/search?q=Eastwood+Fender+Roller&rlz=1C1GCEB_enUS963US963&oq=Eastwood+Fender+Roller&aqs=chrome..69i57.3715j0j7&sourceid=chrome&ie=UTF-8']Eastwood Fender Roller[/URL]. Any recommendations pro or against this approach? 2) I am torn between the 30 and 35 sidewall tires. Any recommendations on commonly used tires? I am seeing both from the posts that I read. 3) I haven't determined my lowering approach as of yet. Any recommendations in this area are greatly appreciated. I realize this has a contributing factor towards tire selection and avoiding rubbing. I like a low, stiff, yet streetable car. 4) With lowering considerations in mind, should I plan to purchase anything else to correct my geometry? E.g., Camber/Caster plates, etc. 5) with my offset of 22. Will I need spacers for clearance? If so suggestions on size to avoid rubbing with 315's? Guidance, and pictures of your setup are greatly appreciated! Thanks in advance![/SIZE] [/QUOTE]
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315/30/18 OR 315/35/18 - Advice Needed
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