Read this thread https://www.s2ki.com/forums/index.php?showt...&#entry11366653

Heres my take on this. Gears are only good for city driving. Because while racing you wont be any faster than a car with 4.10s.

Check out the graph of the 4.10s vs all the other gears in the quarter mile. If you notice after the launch all the cars maintain the same distance in between the lines. Which means after the launch the 4.77s stop out accelerating the 4.10s. So around a track, or a race from a roll it would be a drivers race.

Although 4.77s would be awesome for daily driving to have that extra power down low in the rpms. But for track/racing purposes theyre almost useless.

 

If the price is right I'll sell them but I dont mind having them. Still looking for a turbo or supercharger kit though haha. Hard to find something at a certain price range. I'll probably leave the diff alone if I do get the boost jsut for the reenforced housing.

 

I'm gonna go with the 4.77s i have an AP1 and that is what ive been reading, i saw them on science of speed for 450 plus the speedo calibrator for a 100 so looking at around 550, i dont know y that guy spent so much unless that was installed which it probably was, but all my boys are mechanics and will do it for me for cheap.

 

Installation isn't cheap for gears, at least from what I have heard.

 

dont forget to order installation pieces to that total. Also dont let your "boys" do it unless they have installed gears in a diff before. Unless they have experience they can distory your diff and it's going to end up costing your more. gear installation cost between $300-600

 

the gears themselves can be gotten for like $250. They are oem from a KIA car. Blaming as to which one right now. If you search on here you will find the part number which you can get from any dealership.

 

kia part numbers:

old pn MM05727110
superceded pn KI-0K01427110

for sale here:

http://www.trademotion.com/partlocator/ind...M&siteid=213824
$282

http://www.kiaparts.com/partscat.html
$243

i was going to originally piece it all together but i ended up going through hardtopguy and s2kpuddydad because i'd rather have it cryoed and installed by someone of ben's calibur. the install is only a few hundred dollars.

hardtopguy.com

 

oh yeah, here is the article that talks sh1t about aftermarket retailers of the kia gears...

http://www.turbomagazine.com/tech/0804_tur...tech/index.html

 

the info is there for you but i'd still suggest going through hardtopguy or s2kpuddydad...

 

Tjs S2000 w/ 4.77s vs some V8s

mine