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Technical
1776 Engine with Freeway flyer question
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<blockquote data-quote="Trikky2" data-source="post: 485882" data-attributes="member: 240"><p>A freeway flyer is a term for a gearbox with an longer top gear, rather like an overdrive fourth gear. It's purpose is to drop the engine rpm when in top gear.</p><p></p><p>Another solution is to use the gearbox from an 1800 or two liter bus (depending on how powerful the replacement engine is) </p><p></p><p>Longer gears are needed when fitting a more powerful engine because otherwise the vehicle will only accelerate better but not have a higher top speed unless the engine is over revved.</p><p></p><p>So if your top gear is longer than stock you will notice a bigger gap (larger drop in engine rpm) when changing from third to fourth gear.</p><p></p><p>The easiest way to find out what gearing you have is to compare engine rpm to road speed.</p></blockquote><p></p>
[QUOTE="Trikky2, post: 485882, member: 240"] A freeway flyer is a term for a gearbox with an longer top gear, rather like an overdrive fourth gear. It's purpose is to drop the engine rpm when in top gear. Another solution is to use the gearbox from an 1800 or two liter bus (depending on how powerful the replacement engine is) Longer gears are needed when fitting a more powerful engine because otherwise the vehicle will only accelerate better but not have a higher top speed unless the engine is over revved. So if your top gear is longer than stock you will notice a bigger gap (larger drop in engine rpm) when changing from third to fourth gear. The easiest way to find out what gearing you have is to compare engine rpm to road speed. [/QUOTE]
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1776 Engine with Freeway flyer question
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