It is cost effective, but to date, not many S2000 owners have actually gone this route. Lots of talk about it but I think there may be a fear that the gearset is not as strong as S2000 owners would like.

 

i've had the kia 4.77's in for about 9 months. I havn't had any problems and I love them. My S isn't my daily driver though so i don't mind the extra 1000 ( or so) RPM's for highway driving as someone might with the S as a daily driver. Rick's 4.77 gears come cryotreated (i belive) which increases the strength. So if your worried about them being weak then go for ricks....and get the reinforced differential as well.

Nic

 

try ppg adelaide

 

Well.. how is it to say "Yeah... I have KIA gears in my Honda S2000"
They will most likely answer "Did KIA buy Honda from HYUNDAI then?"


Double Diamond

 

Rick's doesn't currently sell 4.77, Hard Top Guy does.

 

Careful! It has been said that the S2000 stock gears come from the same manufacturer who makes them for Mazda. So, do we all own Monzdas?

 

xviper Posted on Jun 27 2006, 06:27 PM
Sssst! Please dont ever say that outloud again!


To be honest I think the manufacturer of the OEM 4.10 gears did a very good job.
After 119500 kms those gears still looked pretty good

As far as I can tell the diff oil was changed only once before I bought the car with 83000 km so those gears can take some abuse.
Change every 40000 km is by the book. It was changed @ 47137 km.
IMO they did not change it before they sold it to me.
Stealerships......

 

mazda does in fact make kia and s2000 gears. and they are just as strong as the stock gears(same metal and manufacturing process)

 

That you have no proof of. The manufature could be the same, but again there is no way to know for sure, or to prove it. There is also no proof that the gears are manufactured the same (IE. metal and process). They do in fact fit and function. So they do share the same basic design.

I can tell you for a fact, the raw gears do look very differant. Also it is a fact that the Mazda and Kia both have less power and tourqe then the S2000. So for facts that is it.

Without some kind of metallurgical analysts would need to be done, but to date one has not been done. And the results of such has not been published.

 

you might be right about everything you've said for i have no sure proof but I have heard though from a few sources that they are all manufactured at the same plants using the same process (so why not the same metal) Either way i of course admit that your gears are much stronger, safer, and all around better. I plan on upgrading to your gears and reinforced diff as soon as the extra funds become available but at the time i went with the cheaper alternative.

Also while we had the stock gears out of the car we compared them to the kia gears and they were very similar.