Quote:
Originally Posted by nos145
dear sir, what RPM is 75 mph at? That's my average cruising speed on hw. im just thinking how this will affect my fuel consumption.
Another questions i have... what do you think would be the effect of having similar set up and then having a turbo on top of it?
Thank you very much  |
Hit 75 briefly on the freeway just for you, it looked to be just under 3000 rpm. Keep in mind this is on the automatic transmission, and I didn't stay there for any appreciable length of time so it may actually be slightly lower than that at cruise.
As for a turbo setup, @
37 is absolutely right. You'd want to go taller. It will both help with traction on the low end, and let you stay in each gear longer so you stay in boost. Now if you had something like a centrifugal supercharger that ramps up with rpm, then a lower final drive does make sense, because you get up to max boost faster. This may be the route I go if I decide to go FI.
@
SportInjected, I'm going to make a more concise thread with all of the pertinent information in one post, so be on the lookout for that in a bit.