bringing back a thread from the dead...

cna someone explain gearing to me or point me in the right direction...? the lower the number = short better accelleration and worse mpg? and higher = taller slower, better mpg?

 

Higher number = More torque multiplication, faster acceleration, worse fuel mileage, less top speed.
Lower Number = Less torque, slower acceleration, better fuel mileage, higher top speed.

The gear ratio is simply how many times the driveline has to turn for a full rotation of the wheels. However it looks like this thread was about lowering the ratio to take advantage of the engine's powerband and stay in boost longer which could achieve better acceleration by matching the powerband alittle better.

 

so.. then with the turbo, the "lower number" would be the best bet becuase it takes longer to get to a speed, but with the turbo, those problems are gone.... gotcha

 

so what gearing would be better on a N/A rx-8 with 6MT? for drag/ auto cross racing?

 

the stock 4.44 will be just fine for both..

beers

 

I wouldn't worry about dragging a NA RX-8, but the 4.777 final gear from Feed would probably be the best thing for putting more power to the ground in NA form.

 

for the money.. a shorter sidewall tire would be a better option...

beers

 

wait i thought the 3.90 gave worse mpg but the 4.10 get better mpg...?

 

this will make it easier for you... the lower the # the lower the rpm in any given gear.

beers

 

basically i am looking for something to increase low end power but staying N/A. cant afford a turbo kit yet. Life of a college kid.

 

https://www.rx8club.com/showpost.php...4&postcount=33

beers

 

tire size and brands?

 

tirerack.com...

the smaller the tire dia. the more revs per min... the stock tire is 25.9in in dia...
this is a 225 45 18


it is now a word / math problem for you...

beers

 

and anything else besides tires? flywheel, gears, etc..

 

yes.

beers

 

Yes as in, smaller side wall tires, lighter flywheel and gears(4.77 the best?)? And what else besides that? As you can tell i am new to the RX-8 scene. But i have to say compared to other automotive forums i have been a member on this one is THE BEST by far.

 

welcome.

you need to take the time to read the stickys... it will help a lot...

i would say as a student you cannot afford the gears or the flywheel. unless you are going to put it in yourself...

read the stickys learn then ask...

if you need help finding stuff pm me..

beers

 

I actually work at a Ford dealership, so the install is no prob. plus discount if i go with the mazdaspeed flywheel and counter weight. thanks for the help, like wise if you or anyone else needs a technical info PM me and ill see if i cant get what you need.

Thanks,
Jay

 

if you get the mazdaspeed flywheel you dont need the counter weight.. if you need some tech help pm me..

and before anyone at a ford dealership works on the car ask them what a ppf is. if they dont know do not allow them to work on your clutch or transmission..

good luck..

beers

 

Where can i order a 3.9 final drive for the rx8??I ve also send you and Mazmart pms cause I ll soon have a very strong engine in the box so i will sure need a 3.9 final drive..

 

I have your parts and have responded to your PMs.

Paul.

 

what mileage do you have on your car.im looking for 4.44 and i have stock 4.10 im willing to trade.BTW my car has 15k on it and no gear wine

 

What's a ppf?

 

Stock rear end on the RX-8 is a 4.44.

 

power plant frame