I still like you Paul

 

At the same time your not going to lose a whole lot. Just go slower on the highways

 

Brillo,
I think I'm gonna cry.
Paul.

 

Since the people who really want this change actually have the craving to go faster, at least when it comes to acceleration, doesn't it seem a little bit contradictory to drive slower on the freeway?

 

It's not about going fast, its about improving a fine automobile (RX-8) to your own specs.

 

So by making it slower and getting worse gas mileage, it is improving it? Hmmm. OK to each their own I guess. I still think the factory rear end is too much already and it should come with a 4.10. That would definitely improve the car.

 

Ways to Save Fuel

 

yeah, that's been proven time and time again, getting into high gear as soon as possible is always the most fuel efficient, I fell on the floor laughing when I read the post about getting better mileage with a shorter gear, hoo boy ...

 

so you prefer something more direct like say, "STFU"

 

I'm sure Mr. Rotarygod is just teasing... I hope .

The 4.778 gear will improve stop-and-go city gas mileage (50-75% of most peoples' driving) and greatly improve acceleration (real world driving, no insane 1/4 mile tests on public roads). Highway mileage will suffer to a small degree.

If your concerned about the highway miles, just drive 65-75 mph instead of the 80mph+ most us RX-8er have a habit of on the highway . I think there's a 7-8mph spread at RPM between the 4.10 and 4.77. Obeying the speed limit laws are a good thing...

 

Thats the Catch22 in a NA RX-8,

4.77 Ring and Pinion

4.10 Ring and Pinion

 

You can still drive faster on the hwy if you want your just gonna lose a few MPG. Much like everything else if life you don't get everything, but you do get a choice.

 

i think there is a 7-9 mph spread from 4.444 to 4.778 ( in 6th gear at redline)..i've been looking it up.

i'd have to say no to the better gas milage...can't see how that would ever come about from changing to this set up...but i woudl see how acceleration would improve slightly......only one real way to find out i supose.

did that person who had feed a 4.778 gear and a Kaaz l.s.d. ever post there impressions of it? anyone ? anyone?

 

read the thread "mi new parts".

 

^just did..lol thanks

 

This is pretty interesting. I'm going to sit back and wait for someone to do this, but this is something I'd be interested in.

 

I don't think changing the final will improve MPG, specially because our foot will get heavier . I don't care about that, if i wanted to get better gas milage I would have got a hybrid car instead and coming from 13 mpg FD the 8 is a improvement. I just want to know if this is worth it. I want to do this since I do track my car and this will improve exit acceleration I believe.

 

I wonder why Racing Beat did not think of offering a 4.778 gear for better acceleration.

 

^hmm..maybe they didn't think of it......or they thought that the benifits didn't out weight the costs...who knows...maybe they'll see this and chime in

 

Cost? this is cheaper than putting a catback and it actually improve something.

 

when i said cost i was refering to acceleration gained vs. mpg lost not the actual price

and teh feed set is high 500's...wonder what the install is on that....probable a lot (more than a cat-back)..hehe glad i can do it myself i guess.......now to pick what upgrade i want for x-mas

 

if i were to get the 4.778 gear for acceleration, and then later decided that i want to go FI would the 4.778 gears still be better for acceleration or would i need to get smaller ones like stock or 4.1?

 

Okay still better than a RB intake then. and don't say the RB intake gives better MPG.

 

it does doesn't it?

 

i will be buying this MOD soon. I dont really care if it's going to either give me better or worst in the MPG.. I know my City for a fact will be the same on the highway its going to hurt me BUt whatever.

As long as my RX8 is a little bit quicker i'll be happy. Im really getting bored of the speed of my car its not quick enough.