03-04-2011, 09:21 PM
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CC Member
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Join Date: Aug 2009
Location: Adelaide,
SA
Cobra Make, Engine: AP 289FIA 'English' spec.
Posts: 13,152
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Quote:
Originally Posted by blykins
Yes, but you have to look at the final drive ratio as well. The beauty of a wide ratio Toploader is that you have a lower 2.78:1 1st gear, which helps out with a higher rearend ratio (like a 3.31), but that same 3.31 rearend will help you cruise at a lower rpm.
For example, with that 3.31 rearend and the usual 26.5" rear tire, with a Toploader you'd be turning 2300 at 55 mph and 2900 at 70.
Keep in mind that a lot of your Richmond transmissions do not have overdrives, but they are made to have a lower 1st gear and a 1:1 5th gear. The transmissions that have the overdrives are the most expensive at over $3500. In my opinion, that's a lot of money to spend just for an external linkage.
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Brent - with a mild 289/302, how high (low numeric) can you go with diff ratio, in combo with a WR Toploader?
2900 at 70mph sounds a little high. With a 3.08 rear, does the overall gearing in first with a WR Toploader become too high?
Glen |
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