Krullert

Hey guys, i just read a discussion somewhere that the Lexus IS 200 has the same trans. as the S2000.

You know if its true? If so what separates them from eachother?

Peace

Krullert

I was also told it is the same in the Mazda RX-8, sounds familiar?

andre@raw

You never know but there is only one way to find out,just go on all Data or mitchell and the answer might be there.

BTW: I rhink it's a simple question. The guy seems like he's new to the S2000's and that is why he came in the forums to ask a a question and to see if anyone might be able to help him but I guess there is a lot of people here that don't know so the easiest way out is to bash his thread.

HondaKyle

I know for a fact its not...

Bwill9886

Ok, now I REALLY have to know where the OP saw this info...

Oh, and just in case anyone thought the jury was still out, NO, they do not share transmissions.

shamoo

I agree. Pretty simple to answer him.

No, the transmission in the IS200 and Mazda are very different than that of the Honda S2000. A Wiki or Google search would have also confirmed this fact. Welcome to HT (if you're not a troll).

Targa250R

No. Unlike a number of other auto manufacturers, Honda does not outsource any of their transmissions; they are all designed and manufactured in-house.

Toyota has sourced a number of transmissions in its vehicles from Getrag, Borg Warner, Tremec, and Aisin. I'm not sure what trans was used in the IS200, but it certainly wasn't a Honda trans.

Edit: Ignore the information in this post; it is incorrect. Read further for more details.

bky

Honda used the AZ6 transmission from Aisin. I'm sure Honda asked for a few changes here and there (the shifter is unmatched in the automotive world), but it's still a variant.

http://en.wikipedia.org/wiki/List_of..._transmissions

Most manufacturers subcontract their transmissions.

Krullert

Thanks, as I too have discovered there really is "the same" box, ofcourse with some obvious differences.

"December 1997– Aisin AZ6 — 6-speed

* Honda S2000, Mazda Miata/MX-5/Roadster, Mazda RX-8, Toyota Altezza/Lexus IS200"
As i understand, it is also the same trans. as in the 6-speed Nissan Silvia S15.

As for all the douches, maybe you should actually know for sure before you answer?

That said, what ive read about gearratios on the S2000, it differs from these ratios on the RX-8:

2) RX-8 final drive: 4.44:1
1st gear: 3.76:1
2nd gear: 2.27:1
3rd gear: 1.65:1
4th gear: 1.19:1
5th gear: 1.00:1
6th gear: 0.84:1

Rude Awakening

Everybody got owned.

I knew the B15 Sentra SER Spec V had the same trans as a Hyundai Tiburon 6-6, so it wasn't completely impossible. I was gonna look it up, but it's already been solved. Funny it turned out this way.

crx(gator)

so this means that a f20 can bolt up in a miata fairly easy then, with just mounts...

90Rexx

dimensions between engines....

here let me fix that sentance for you



;-)

crx(gator)

what dimensions? they are pretty similar in size, and if the miata transmission can bolt up to the f20c engine due to both cars using the same transmission, i dont see it being that hard of a task to bolt in the f20 into the miata. just different mounts. anything is possible, hell people put in v8's into the s2k.

JDMF22B

mister x

Actually some good info came out of this thread, even though I had use my high boots to get through all the BS.

bky

I don't know if that's true, but using an off-the-shelf transmission makes a lot of sense for the S2000. Almost all Hondas, including the NSX, used a combined transmission/differential/axles housing. Typically, packaging was fairly complex and vehicle-specific. The S2000, with a conventional engine rotation and FR layout, meant that the Honda engineers could simply take an existing, proven design and customize it for their application. I'm sure there were design parameters that Honda spec'd: gear ratios and shifter design, but the basic structures are common to all AZ6: input and output shaft centerlines, etc. Given the low price point of the S2000 (relatively speaking) and unfamiliar layout (to Honda), I'm not at all surprised that Honda bought the S2000 transmission from Aisin, even though they are from Toyota's keiretsu*. Honda could have built their own,but it would have been more expensive and put Honda onto new, unfamiliar ground (it's been 30+ years since Honda build an FR automobile).

Transmissions and differentials are often a standardized thing: most manufacturers will get them off-the-shelf from specialty companies like Tremec, Borg-Warner, Aisin, Getrag, Muncie, ZF, etc. The Tremec T56 is used by the Ford Mustang, Chevy Corvette and Dodge Viper. Many of the diff internals are shared too: Honda uses the same M1 LSD internals from Torsen as Mazda for the older Miatas.

From what I've read, there's also only a couple companies that machine/cut/harden helical gears in Japan. Many Japanese gears share tooth profiles, which is why you can find alternative final drives for the S2000 out of a Kia Rondo. Honda just designed the diff housing that held other people's parts (poorly, in my opinion).

*=http://en.wikipedia.org/wiki/Keiretsu

Knowledge is power.

Targa250R

I've actually been researching this topic all day; it piqued my interest.

Unfortunately the AZ6 is no longer listed on Aisin Japan's site, but I can see some evidence that at the time it was listed they did indeed include the S2000 as an application along with IS200, RX8, S15, MX5, etc. I'm wary of Wikipedia information on most Honda-related topics due to the mass misinformation I see there, but it appears that I'm in the wrong this time.

I stand corrected.

It still appears that all of Honda's transmissions for FWD applications are in-house designs; the S2000 is the only vehicle I can see in recent history that uses an outsourced design (which definitely makes sense for the reasons you suggested). I guess that's why the S2000 hasn't been plagued with 3rd-gear synchronizer issues like all of the Honda boxes

I'm pretty familiar with the Borg Warner T5, Tremec T56, and a few Getrag boxes including the V160, 240, 250, 260, and 285.

Krullert

Thanks. The question is, how much alike are they?

The reason why i started the thread is that there is a J160 Lexus IS transmission for sale for about $70.

And im thinking about putting it, along with either a F20c or a K24 in my miata. But there is probably alot of differences between them.

But if the inputshaft is the same as in the s2000 maybe the rest is an easy fix with a welder.

sweetdill

Do these transmissions have removable bell housings?

HondaKyle

Why would you put a k24 in your miata? you could just make the F motor a 2.4L and have a way better motor or keep it a F20/22 and still have a better motor...

JDogg

i'm more interested to see if the gear sets are interchangeable and if the "maza" gears/syncros are cheaper

Krullert

I havent gotten that deep into Honda engines yet. But i thought it could be cheaper to buy a K24 and then just swap the head and all the other bits, than to buy a F and buy a bunch of new parts for that.

But as i said i dont really know so if its the same or better pricewise to go with the F then thats the one.

Thanks

bky

At $70, you can't go wrong. Even if doesn't fit, the intel is gold to the rest of the S2000 community. Try it and let us know!

bky

Unusually humble response for an HT forum. Props for being a class-act.

JDogg

70 bux? where ... ill buy it and see if the ***** the same

does anyone know what mazda charges for a syncro/gear set?