I don't know if you would say the impact of the tire weight varies based on gear. The acceleration benefits with lighter weight wheels/tires are greater the faster they are accelerating. In the same way, a lower weight flywheel, pulley,or other rotating piece would provide more benefit when the engine rpm is changing quickly, so lower gears are where the benefits would be most noticeable.
Maybe we are saying the same thing? I spent too much time thinking about this already :) On Thu, Jan 14, 2016 at 12:04 PM, Larry Velez <[email protected]> wrote: > Seems like each gear would have different gains on wheel weight reduction > so it would depend on what your end goal is but generally less unspring > weight seems to be “better” (and more expensive per size) > > > > Rotational Inertia - Equivalent Mass > > https://www.youtube.com/watch?v=SR3nVx1aaTo > > > > -Larry > > > > *From:* [email protected] [mailto:[email protected]] *On > Behalf Of *Holland Phillips > *Sent:* Thursday, January 14, 2016 11:43 AM > *To:* [email protected] > *Subject:* Re: [mk2-16v] Impact of wheel weight on acceleration > > > > Back when I was building my '92 GTI 16V, I chose BBS RC 16x7.5 wheels > because they were the lightest wheels available at the time. I understood > the physics involved, as in the benefits of lower unsprung weight, less > rotational weight, etc. All these aspects greatly benefit handling, > braking, and acceleration. Not to mention I always loved the look of that > style of wheel. They are reminiscent of the BBS 3 piece wheels that were > used on the old Porsche RSR race cars from the early seventies, and > continued to be used by Porsche and BMW for years on their race cars. > > ~Holland > > On Jan 13, 2016 19:53, "Chad Rebuck" <[email protected]> wrote: > > I had never really seen a test like this done. The impact on acceleration > is more than I would expect. > > -- > You received this message because you are subscribed to the Google Groups > "MK2-16v" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/mk2-16v. > To view this discussion on the web visit > https://groups.google.com/d/msgid/mk2-16v/CA%2BV5SC_oP8WwXMCVn6RzJLcc9-Vca8WYjzgBOGkQ7G3c_YZeXA%40mail.gmail.com > <https://groups.google.com/d/msgid/mk2-16v/CA%2BV5SC_oP8WwXMCVn6RzJLcc9-Vca8WYjzgBOGkQ7G3c_YZeXA%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > > -- > You received this message because you are subscribed to the Google Groups > "MK2-16v" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/mk2-16v. > To view this discussion on the web visit > https://groups.google.com/d/msgid/mk2-16v/CABrbKB%3Dns%3Dj5yd%3DqWPcUCqE8p6YQonkeM1B33z4tybj54pO9hw%40mail.gmail.com > <https://groups.google.com/d/msgid/mk2-16v/CABrbKB%3Dns%3Dj5yd%3DqWPcUCqE8p6YQonkeM1B33z4tybj54pO9hw%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > > -- > You received this message because you are subscribed to the Google Groups > "MK2-16v" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/mk2-16v. > To view this discussion on the web visit > https://groups.google.com/d/msgid/mk2-16v/c20bd37fda574a79a2b36cc8f10b73d6%40MBX082-E1-VA-2.EXCH082.SERVERPOD.NET > <https://groups.google.com/d/msgid/mk2-16v/c20bd37fda574a79a2b36cc8f10b73d6%40MBX082-E1-VA-2.EXCH082.SERVERPOD.NET?utm_medium=email&utm_source=footer> > . > > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "MK2-16v" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/mk2-16v. To view this discussion on the web visit https://groups.google.com/d/msgid/mk2-16v/CA%2BV5SC8VnLdcBU_JMwmES8P0MFkQ9%2BMHmoL5ZYeNa0USE3vdBg%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
