Thread: Six Speed 915!
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jmd88 jmd88 is offline
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Join Date: Dec 2021
Posts: 124
Oh Bill, your purist is showing. You could just say, “I hate Suby stuff and don’t want it talked about in my forum!” It’s okay—we’d still massively respect you, your experience, your position, and your opinion. Everyone’s entitled to one. That way, we could all just move on and keep talking about Porsche 911s and all the cool things we can do with them.

This thread started with a community member posting about a non-Porsche part—a 6-speed replacement/upgrade/modification for the factory Porsche 915 transmission. It’s aimed at racers and performance drivers. Naturally, some questions came up, and it seemed like no one had answers.

So, I chimed in with my direct and topically relevant experience. I’ve worked with a non-Porsche 6-speed part geared toward racers and performance drivers which is a replacement/upgrade/modification for the factory Porsche 915 transmission. I’ve personally replaced a 915 with this setup in an ‘86 Targa and bolted it to 930 axles. Neither transmission in this case is factory or numbers-matching, but both serve performance-oriented Porsche owners as 915 replacements.

Oh, and here’s the fun part: I checked my Kennedy plate from another project of mine, and surprise—it works both ways. So, not only is what I’m discussing relevant to the original post, but this alternative part is a replacement for the 915, the G50, and even the 901. Also, it's capable of ~800ftlbs/~800hp in an AWD car...

Since posting, my comment has sparked exactly the kind of relevant discourse forums are meant for, like this from WonkoTheSane:

“I think having a Subaru box mated to an air-cooled engine would be more of a game changer than this cool piece... Being able to easily and affordably service a transaxle that could hold a bit more abuse than a 915 sounds sweet.”

Or this from Rodsrsr:

“I think the Subi gearbox swap sounds interesting and related to the topic. The people interested in the Albins gearbox are interested in a ‘solution,’ not necessarily that specific box, so the Subi gearbox is related as another alternative solution.”

These are the kinds of discussions that add value to the community. And yes @WonkoTheSane, I’m working directly with Subarugears on this project—they’re the leaders in reversing transmissions for applications like this, with years of racing expertise in road, track, and rally settings.

Now, Bill, clutch the pearls if you must, but let’s not pretend people only want to talk about numbers-matching or Sonderwerks SKUs in this forum. Porsche enthusiasts enjoy exploring cool, innovative ideas—and sharing them with others.

Finally, I’d like to address your comment:

“Just love the trolls that try to make a thread all about their non-related projects.”

If you’d taken a moment to read the posts and engage with the discussion before letting your purist instincts take over, you’d see that my contributions are exactly, specifically, and topically related.

I do have one more question for you Bill... what's the name of my company, how much am I selling this thing for and how can you get one? Right... you still can't answer those questions... because I didn't "Self-Promote" my company or suggest that I have products for sale, or share a URL to learn more. Just my personal experience replacing a 915 with a non-Porsche 6spd race ready transmission. You call me a troll, but I don't think that word means what you think it means...



Shall we carry on with the discussion, or would you prefer to uphold the illusion of purist law and order?

Last edited by jmd88; 01-08-2025 at 05:36 PM..
Old 01-08-2025, 05:15 PM
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