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Message: <blockquote data-quote="basahboy" data-source="post: 952937" data-attributes="member: 9696">The connection between Gear Ratios (GR) and the Final Drive (FD) can be summed up as Absolute Gear Ratio (AGR). In layman terms, if your AGR is higher, you have better torque at the same rpm. For comparison purposes, most would compare a rpm on a 1:1 basis at each gear.I have made some calculations comparing B18CR and B18C gear ratios with & without FD of 4.925 and ATS 345 with & without...you have to made your own deduction as to whether it is applicable to you should you want to drag or track racing...those two are NOT synonymous..to summ it up:1. For drag purposes, a FD of 4.925 and above is a big advantage at 1 or 2nd gear i.e. for instantaneous pick up (0 to 60ft)...2. For track purposes, a 1st and 2nd gear is relatively unheard of due to the apex, hairpins, etc. so most of the time , it would be shifting between 3rd to 4th and in which you would want to maintain at high rev...this is where the close ratios work best...3. Pls take note that when combining b18c FD of 4.4 with ATS 345...you must change the 2nd GR to B18CR GR at 2.105 because having a second GR at 1.900 and combining it with ATS 345 would do unjustice to your engine i.e. too close...enjoy...</blockquote>

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