 Scrub radius on original tire/wheel setup?, Anyone know the actual value? |
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| chmillman |
 Oct 20 2024, 02:55 AM
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Member  Group: Members Posts: 369 Joined: 15-June 24 From: Switzerland Member No.: 28,183 Region Association: Europe 
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Just out of curiosity...
Anyone know what the original designed-in scrub radius on a stock 914 with 5 1/2J x 15 wheels and 165R15 tires is? |
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| anderssj |
Oct 24 2024, 05:51 AM
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Dog is my copilot... Group: Members Posts: 1,782 Joined: 28-January 03 From: VA Member No.: 207 Region Association: MidAtlantic Region
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Wheel offset also affects scrub radius—moving wheel/tire centerline outboard increases scrub radius, while moving wheel/tire centerline inboard decreases scrub radius.
Changing from ARE alloy wheels (slightly less offset than OEM) to factory Pedrinis changed the feel of the car a little bit. A little less agile (“darty”), a little better holding a straight line on bumpy roads. |
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| chmillman |
Oct 27 2024, 09:14 AM
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Member Group: Members Posts: 369 Joined: 15-June 24 From: Switzerland Member No.: 28,183 Region Association: Europe
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QUOTE(anderssj @ Oct 24 2024, 05:51 AM)  Wheel offset also affects scrub radius—moving wheel/tire centerline outboard increases scrub radius, while moving wheel/tire centerline inboard decreases scrub radius. Changing from ARE alloy wheels (slightly less offset than OEM) to factory Pedrinis changed the feel of the car a little bit. A little less agile (“darty”), a little better holding a straight line on bumpy roads. Yes, that's why it would be interesting to have the original geometry specs. From there any modifications (offset, wheel width) can be calculated. |
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Posts in this topic
chmillman Scrub radius on original tire/wheel setup? Oct 20 2024, 02:55 AM
chmillman Nobody? Oct 23 2024, 10:52 AM
930cabman
Nobody?
Can you define "scrub radius... Oct 23 2024, 11:26 AM GregAmy The definitions are out there.
But why do you car... Oct 23 2024, 12:23 PM chmillman
But why do you care?
First line in the first p... Oct 23 2024, 02:08 PM jd74914 I made a Lotus Shark model of the stock geometry [... Oct 23 2024, 03:17 PM Front yard mechanic The way 914s hug it’s got to be negative Oct 23 2024, 08:39 PM |
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