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Canadian_CD9A

Supporting Member
1,078
833
Feb 10, 2012
Winnipeg, MB_Canada
Mods - apologies if this isn't allowed. Please let me know and I'll take it down.

As many of you know, OEM gearsets for the DSM & Evo 123 transmission are disappearing, or in many cases gone. Right now, if you want an OEM Evo123 1st/2nd & input shaft for your car, you have to take chances on buying used, or buy a whole transmission. Years ago, there was a very reputable Japanese manufacturer who actually offered an aftermarket helical, synchronized gearset for the Evo123, but discontinued them because nobody bought any. Not a single kit got delivered to the US - presumably because nobody even knew it existed. I have spent way too much time over the past 10 years finding every aftermarket part available, and just discovered these myself after digging through an old pricelist.

Given the situation with our gears, I just contacted the manufacturer, asking if it possible to bring them back. At the moment, I have a *maybe*, provided that I buy 10 sets. You can imagine that this is not a small investment. At the moment, I do not know the specifics of the gears, other than what I have mentioned above. For strength, they should meet or exceed OEM gears (otherwise they wouldn't have been made in the first place). I would bet that they have shorter ratios, possibly shorter than the Evo.

Now I'm reaching out to the Evo123 & DSM communities - is anyone interested in an aftermarket solution to our gear shortage? I'll estimate each set around $2,000 US at the moment, which may go up or down. I want these for my own car, but if I can't find enough interest, I'll abandon the idea, as I have other options for my transmission. Please post in this thread if you are interested in taking part.
 
We don't need first gear taller than an evo3 for sure. Not everyone drag races, but even stock dsm first gear is too tall imho. I'm sure road racing or ax it probably not ideal. At $2k+ it better be significantly stronger than stock, or there will be no interest.
 
First gear was indeed shorter, but Cusco just told me that the kit was disco'd 20 years ago, so it can't be done anyway. It would've been nice.
 
Mods - apologies if this isn't allowed. Please let me know and I'll take it down.

As many of you know, OEM gearsets for the DSM & Evo 123 transmission are disappearing, or in many cases gone. Right now, if you want an OEM Evo123 1st/2nd & input shaft for your car, you have to take chances on buying used, or buy a whole transmission. Years ago, there was a very reputable Japanese manufacturer who actually offered an aftermarket helical, synchronized gearset for the Evo123, but discontinued them because nobody bought any. Not a single kit got delivered to the US - presumably because nobody even knew it existed. I have spent way too much time over the past 10 years finding every aftermarket part available, and just discovered these myself after digging through an old pricelist.

Given the situation with our gears, I just contacted the manufacturer, asking if it possible to bring them back. At the moment, I have a *maybe*, provided that I buy 10 sets. You can imagine that this is not a small investment. At the moment, I do not know the specifics of the gears, other than what I have mentioned above. For strength, they should meet or exceed OEM gears (otherwise they wouldn't have been made in the first place). I would bet that they have shorter ratios, possibly shorter than the Evo.

Now I'm reaching out to the Evo123 & DSM communities - is anyone interested in an aftermarket solution to our gear shortage? I'll estimate each set around $2,000 US at the moment, which may go up or down. I want these for my own car, but if I can't find enough interest, I'll abandon the idea, as I have other options for my transmission. Please post in this thread if you are interested in taking part.

That's true that our transmission parts are disappearing. and getting harder and harder to find even used. I just got an used complete EVO 2/3 gear clusters from japan but I found only a few kits last year.
I am not so sure but maybe there would still be some small companies/shops in japan that can produce custom gears for DSM/EVO1-3/GVR4 even one set. Of course would be cheaper if order several sets with bigger companies. but if you really need it just PM me, maybe I can try to help you since Japanese is my native language and I know several performance shop owners over there. At least I would be able to ask them.
 
The cost on one-off parts is astronomical - at that point, PAR gears would make sense. Without technical drawings or a reference part, it has to be engineered from scratch, and that's not cheap. The one part that could/should be replicated are the Evo hub & slider assemblies, since there is no aftermarket solution to those at all. It would be nice to get Mitsubishi to start stocking the rare parts again since there is clearly a demand, but they are clueless in general these days.
 
Yes sure, one-off including drawings costs really high... Before somebody in Japan told me to make one-off gearset including drawings costs more than a new Holinger sequential gearbox.

I meant that I hoped there would still be some small shops in Japan that still keeping their business since the 80s 90s and still have drawings for EVO1-3/GVR4 transmission parts that they used to produce before and would be able to produce it again, even if it is discontinued now.
 
The only other one I can think of is Adelia Magic, but they made W5M31 parts, not W5M33. They don't seem to do anything anymore, so I doubt they would even try.
None of the major hitters (OS Giken, ATS, HKS, etc) made any gears for our cars, so I wouldn't even know where to look for someone with experience.
 
I am sure almost zero chance with the major brands. I looked for some personal shops but seems they quit their business already. Only I found is a shop that makes replacement parts for major brand gearbox. But would be billet and pricing would be super high so that is not realistic.
 
The only other one I can think of is Adelia Magic, but they made W5M31 parts, not W5M33.
Today I was seeing Adelia's site and realized that they have a close ratio gearset for CD5A Lancer. I thought they make it only for Mirage W5M31. IIRC, 1.8L CD5A Lancer has W5M33. Please correct me if I am wrong.
 
That's a good point, actually.
The CD5A GSR (and GSR RS) used the same 3rd and 4th gears as the late 91-early 92 DSM transmission (MD742728 and MD742729). I see that Adelia Magic's CD5A kit essentially changes 1st to a shorter gear than Evo (2.846) but keeps the Evo123 3rd & 4th ratios (1.160 & 0.862, respectively). Since the intermediate shaft will accept the Evo gears, it should be a direct drop-in with the matching hub & slider and fork.

The question is, then, what did they use - OEM, or did they make their own? I can drop them a line to see if they're still available, to get some pictures, and to ask if 3rd and 4th can be bought separately. Since the input shaft is only useful for the 1st gear conversion, it's probably over half the cost and pretty unnecessary.
 
That's a good point, actually.
The CD5A GSR (and GSR RS) used the same 3rd and 4th gears as the late 91-early 92 DSM transmission (MD742728 and MD742729). I see that Adelia Magic's CD5A kit essentially changes 1st to a shorter gear than Evo (2.846) but keeps the Evo123 3rd & 4th ratios (1.160 & 0.862, respectively). Since the intermediate shaft will accept the Evo gears, it should be a direct drop-in with the matching hub & slider and fork.

The question is, then, what did they use - OEM, or did they make their own? I can drop them a line to see if they're still available, to get some pictures, and to ask if 3rd and 4th can be bought separately. Since the input shaft is only useful for the 1st gear conversion, it's probably over half the cost and pretty unnecessary.
I am not sure if they make their own or use OEM parts, it has to be asked. But I think you can purchase separately if still available, since they state on their site that "Can be sold separately for repair".
 
Adelia says they're out of stock and ETA unknown for new stock. It has to be bought as a whole kit, and it is their own design.

As I said above, Adelia doesn't seem to do anything anymore. They made promises on making new couplings, never happened. They probably have some leftover Mirage and Civic stock or something, but never have Evo stuff in stock.
 
Adelia says they're out of stock and ETA unknown for new stock. It has to be bought as a whole kit, and it is their own design.

As I said above, Adelia doesn't seem to do anything anymore. They made promises on making new couplings, never happened. They probably have some leftover Mirage and Civic stock or something, but never have Evo stuff in stock.
Well, it makes sense. In Japan really few people still racing with CD/CE lancer.
And I guess after you purchase a kit you can purchase it separately as they say "can be sold separately for repair" in where the red line is.

I might buy depending on the gear ratios.
Here is the gear ratios.

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The Adelia kit is a weird mix of gear ratios. Basically a Galant VR4 1st and 2nd, with Evo 3rd and 4th. Even though they say it's proprietary, I'm still concerned that it's just OEM parts, or based very closely on the OEM Design. Galant VR4s had a weak 1st gear setup, so breakage on the Adelia kit is possible if they followed the same design. I'm also curious about 3rd and 4th - would it still have the single-synchro setup that uses the 91/92 hub/slider/fork/rail/synchros? Unless DSM parts dry up completely, buying their 3rd/4th is a waste, since the ratios are already pretty close, and 91/92 had decently strong gears. Assuming it is indeed made for the 91/92 style parts, Evo guys can't really make use of it unless they downgrade to the weaker hub/slider/fork/rail/single synchro. Until someone proves to me otherwise, the 2.846 1st gear in this kit seems like a bad idea based on its reputation in the Galant.

But, not like it matters. I don't think Adelia's machine shop is around anymore, so they might as well be obsolete, if they even made the parts to order. If anyone wants to try, this is the name, though they are/were probably bound by contract:

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Correct, Adelia is the gearset brand name of Dewpoint. Dewpoint is the shop/company who owes/sells the Adelia gearsets. WHELMER is still around.

If I get new updates/infos, I will post it here.
 
Admittedly, I am incredibly ignorant to the magic of transmissions, but how insane does it sound to make a Frankenstein gearset now that boostin makes a center section of the trans? I remember Bastarddsm saying a while back that the biggest problem making a new set was a space constraint. Can we not obtain more space internally by redesigning that section to extend the internal space of the case?
 
As cool as that would be, it would take a complete redesign, which entails untold hours and trials. Doesn't make sense unless you have time and money to burn. Don't get me wrong, we can dream!
 
Redesign, and manufacturing cost. That plate is $900, and it's just a plate.
Probably not a good investment for them, since the cost would likely meet or surpass the PAR synchro gear kit, and there wouldn't be many buyers at that price.
 
Just talked with Dewpoint about the Adelia gearset. They told me that they don't have the complete kit for W5M33 anymore and it will be discontinued. They now have 1st gear, 3rd gear (inside) and center diff case in stock. Also those parts will be discontinued. What they have is the last one. So should order before it's gone if somebody's looking for the parts to repair.
 
Well, the 1st gear probably isn't very useful without the input shaft. I'd like to see the 3rd gear and center diff housing - no doubt configured for a 2 spider. The 3rd gear by itself may be useful for someone with a DSM transmission. How much do they want?
 
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