Quote:
Originally Posted by Bkdshadow
If it’s a DD like mine then it’ll def get worse MPG assuming there’s higher speeds involved in the commute along with more noise. Definitely gonna feel quicker but 4.56 seems to be a good middle ground of more pep and maintaining drivability as a DD. All preference though really
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Most people who do FD swap don’t notice a drop of MPG, in theory yes driving at 70mph in 6th on freeway you will get like 1mpg worse (which is nothing) but a lot of people record better mpg in city driving. (Depending how you drive) and as for the noise your rpms will be higher by the same percentage increase as the Fd ratio difference. 4.1 to 4.56 is 11% 3000rpm is 3330rpm. Slightly louder but most people then drive 3-4mph slower (bonus less tickets) and noise is same.
For manuals though 4.56 or 4.67 seem to be the “sweet spot” autos a little higher. But FD swaps really depend on car use.