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Originally Posted by MetroMPG
okay, lots of talk about manual transmission swaps going on lately.
can some of you who are doing this give examples of the ratio difference you'll be achieving, before & after?
am i correct in assuming you're doing the swap to lower your engine RPM for all given road speed (that's "final drive", correct?), or are you just aiming for a taller top gear?
is there a risk of dropping too far down the engine's torque curve, and you end up using the lower gears longer?
feel free to speak about this in terms a 5-year-old would understand, for my benefit and the benefit of all the other 5 year-olds visiting the site.  |
The HF, CX, VX, HX trannys are desireable for thier taller gearing. The 88-91 CRX HF had a 2.95:1 final drive ratio while the 92+ CX, VX, HX have 3.25:1. Compare that with my del Sol with a 4.06 and vtec versions at 4.25. Now you can see what a huge drop in rpms that would give you at highway speeds. As long as the engine has enough torque (not under high load) at the cruise rpm, you should see an increase in MPG. At least that is my understanding.
MetroMPG 
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